2002 IMPREZA SERVICE MANUAL QUICK REFERENCE INDEX ...

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fuel, from, FUEL, Remove, connector, valve, Disconnect, DIAGNOSTIC, step, CHECK, between, hose, Install, ground, contact, SYSTEMS), pipe, (FUEL, harness, INJECTION, torque:, Tightening, FU(D0HC, intake, Fuel, than, terminal, solenoid, kgf-m,, NOTE:

Transcript

2002 IMPREZA SERVICE MANUAL QUICK REFERENCE INDEX
ENGINE2 SECTION
This service manual has been prepared
to provide SUBARU service personnel
with the necessary information and data
for the correct maintenance and repair
of SUBARU vehicles.
This manual includes the procedures
for maintenance, disassembling, reassembling, inspection and adjustment of
components and diagnostics for guidance of experienced mechanics.
Please peruse and utilize this manual
fully to ensure complete repair work for
satisfying our customers by keeping
their vehicle in optimum condition.
When replacement of parts during
repair work is needed, be sure to use
SUBARU genuine parts.
All information, illustration and specifications contained in this manual are
based on the latest product information
available at the time of publication
approval.
FUJI HEAVY INDUSTRIES LTD. G1830BE3
FUEL INJECTION (FUEL SYSTEMS)
FU(D0HC TURB0)m
Page
1 .
2 .
3 .
4 .
5 .
6 .
7 .
8 .
9 .
10 .
11 .
12 .
13 .
14 .
15 .
16 .
17 .
18 .
19 .
20 .
21 .
22 .
23 .
24 .
25 .
26 .
27 .
28 .
29 .
30 .
31 .
General Description .................................................................................... 2
Throttle Body ............................................................................................. 14
Intake Manifold .......................................................................................... 15
Engine Coolant Temperature Sensor ........................................................ 29
Crankshaft Position Sensor ....................................................................... 30
Camshaft Position Sensor ......................................................................... 31
Knock Sensor ............................................................................................ 32
Throttle Position Sensor ............................................................................ 33
Mass Air Flow and Intake Air Temperature Sensor .................................. 34
Pressure Sensor ....................................................................................... 35
Idle Air Control Solenoid Valve ................................................................. 36
Tumble Generator Valve Assembly .......................................................... 40
Fuel Injector .............................................................................................. 37
Wastegate Control Solenoid Valve ........................................................... 41
Front Oxygen (NF) Sensor ....................................................................... 42
Exhaust Temperature Sensor ................................................................... 46
Rear Oxygen Sensor ................................................................................. 44
Engine Control Module .............................................................................. 47
Main Relay ................................................................................................ 48
Fuel Pump Relay ....................................................................................... 49
Fuel Pump Controller ................................................................................ 50
Fuel ........................................................................................................... 51
Fuel Tank .................................................................................................. 52
Fuel Pump ................................................................................................. 60
Fuel Filler Pipe .......................................................................................... 55
Fuel Level Sensor ..................................................................................... 62
Fuel Sub Level Sensor .............................................................................. 63
Fuel Filter .................................................................................................. 65
Fuel Cut Valve ........................................................................................... 66
Fuel Deliverv . Return and Evaporation Lines ............................................ 68
Fuel Damper Valve ................................................................................... 67
a .
32 . Fuel System Trouble in General ............................................................... 71
GENERAL DESCRIPTION
FUEL INJECTION (FUEL SYSTEMS)
Capacity
1. General Description
A: SPECIFICATIONS
60 8 (15.9 US gal, 13.2 Imp gal)
Location Under rear seat
FU(D0HC TURBO)-2
Type
Shutoff discharge pressure
Discharge flow
Fuel pump
Fuel filter
Impeller
450 - 677 kPa (4.59 - 6.9 kg/cm2, 65.27 - 98.2 psi)
More than 130 8 (34.3 US gal, 28.6 Imp gal)/h
[12 V at 300 kPa (3.06 kg/cm2, 43.5 psi)]
Cartridge type
GENERAL DESCRIPTION
FUEL INJECTION (FUEL SYSTEMS)
FU(D0HC TURBO)-3
GENERAL DESCRIPTION
FUEL INJECTION (FUEL SYSTEMS)
B: COMPONENT
1. INTAKE MANIFOLD
EN1135
FU(D0HC TURBO)-4
GENERAL DESCRIPTION
FUEL INJECTION (FUEL SYSTEMS)
Fuel pipe ASSY
Fuel hose
Clip
Purge control solenoid valve
Vacuum hose
Vacuum control hose
Purge valve
Purge hose
Intake manifold gasket
Guide pin
Tumble generator valve ASSY
Tumble generator valve gasket
Accelerator cable bracket
Fuel injector
Insulator
Fuel injector pipe
Pressure regulator
Pressure regulator hose
Fuel pipe protector RH
Blow-by hose stay
Intake manifold
Solenoid valve cover
Solenoid valve cover stay
Wastegate control solenoid valve
ASSY
(25) Fuel pipe protector LH
(26) Nipple
Tightening torque: N.m (kgf-m, ft-lb) ,
T1: 4.9 (0.5, 3.6)
T2: 6.4 (0.65, 4.7)
T3: 8.25 (0.84, 6.1)
T4: 16 (1.6, 11.8)
T5: 17(1.73, 12.5)
T6: 19 (1.94, 13.7)
T7: 25 (2.5, 18.1)
FU(D0HC TURB0)-5
GENERAL DESCRIPTION
FUEL INJECTION (FUEL SYSTEMS)
2. AIR INTAKE SYSTEM
EN113
~
(1) Gasket (5) Pressure sensor
(2) Throttle position sensor (6) Gasket
(3) Idle air control solenoid valve (7) O-ring
(4) Throttle body
Tightening torque: N.m (kgf-m, ft-lb)
T1: 1.6 (0.16, 1.2)
T2: 2.8 (0.29, 2.1)
T3: 22 (2.2, 15.9)
FU(D0HC TURBO)-6
GENERAL DESCRIPTION
FUEL INJECTION (FUEL SYSTEMS)
3. CRANKSHAFT POSITION, CAMSHAFT POSITION AND KNOCK SENSORS
(1) Crankshaft position sensor (3) Camshaft position sensor Tightening torque: N.m (kgf-m, ft-lb)
(2) Knock sensor T1: 6.4 (0.65, 4.7)
T2: 24 (2.4, 17.4)
FU(D0HC TURBO)-7
GENERAL DESCRIPTION
FUEL INJECTION (FUEL SYSTEMS)
4. FUELTANK
EN1119
FU(D0HC TURBO)-8
GENERAL DESCRIPTION
I
FUEL INJECTION (FUEL SYSTEMS)
Heat shield cover
Fuel tank band
Protector LH
Protector RH
Fuel tank
Canister hose A
Clamp
Fuel pump gasket
Fuel pump ASSY
Fuel cut valve gasket
Fuel cut valve
Evaporation hose A
Clip
Joint pipe
Evaporation hose C
Evaporation hose B
Evaporation hose D
Evaporation hose E
Evaporation pipe ASSY
Retainer
Quick connector
Jet pump hose A
Fuel return hose A
Fuel pipe ASSY
Jet pump hose B
Fuel return hose B
Evaporation hose F
Evaporation hose G
Fuel sub level sensor gasket
Jet pump filter
Fuel sub level sensor
Protector cover
Vent valve hose
Vent valve
Fuel tank pressure sensor
Fuel tank pressure sensor hose
Vent valve gasket
Tightening torque: N-m (kgf-m, ft-lb)
T1: 4.4 (0.45, 3.3)
T2: 7.4 (0.75, 5.4)
T3: 33 (3.4, 25)
FU(D0HC TURBO)-9
GENERAL DESCRIPTION
FUEL INJECTION (FUEL SYSTEMS)
5. FUELLINE
EN1120
FU(D0HC TURBO)-I 0
GENERAL DESCRIPTION
FUEL INJECTION (FUEL SYSTEMS)
Clamp
Fuel delivery hose A
Fuel filter bracket
Fuel filter holder
Fuel filter cup
Fuel filter
Evaporation hose
Clip
Fuel delivery hose B
Fuel return hose A
Fuel return hose B
Fuel damper
Evaporation hose J
Evaporation hose K
Joint pipe
Canister hose A
Air filter hose A
Drain valve hose
Air filter hose B
Drain filter
Drain valve
Canister upper bracket
Cushion rubber
Canister lower bracket
(25) Canister holder
(26) Evaporation hose L
(27) Pressure control solenoid valve
(28) Canister hose B
(29) Canister
(30) Fuel pipe ASSY
Tightening torque: N-m (kgf-m, ft-lb)
T1: 25 (2.5, 18.1)
T2: 23 (2.3, 16.6)
T3: 1.25 (0.13, 0.94)
FU(D0HC TURBO)-I 1
GENERAL DESCRIPTION
FUEL INJECTION (FUEL SYSTEMS)
6. FUEL FILLER PIPE
EN1 121
(1) Fuel filter pipe ASSY (8) Filler pipe packing
(2) Evaporation hose holder (9) Filler ring
(3) Clamp
(4) Clamp
(5) Evaporation hose A
(6) Evaporation pipe
-
(1 0) Filler cap
(1 5) Fuel filler pipe protector
Tightening torque: N.m (kgf-m, ft-lb)
(1 1) Shut valve T1: 4.4 (0.45, 3.3)
(12) Evaporation hose 6 T2: 7.5 (0.76, 5.5)
(1 3) Evaporation hose C
(7) Evaporation pipe holder (1 4) Joint pipe
FU(D0HC TURBO)-I 2
GENERAL DESCRIPTION
FUEL INJECTION (FUEL SYSTEMS)
C: CAUTION
Wear working clothing, including a cap, protective goggles, and protective shoes during operation. . Remove contamination including dirt and corrosion before removal, installation or disassembly. . Keep the disassembled parts in order and protect them from dust or dirt.
Before removal, installation or disassembly, be
sure to clarify the failure. Avoid unnecessary removal, installation, disassembly, and replacement.
D: PREPARATION TOOL
Be careful not to burn your hands, because each
part On the vehicle is hot after running.
Be sure to tighten fasteners including bolts and
nuts to the specified torque.
Place shop jacks or Safety stands at the specified
points.
Before disconnecting electrical COntleCtOrS Of
sensors or units, be sure to disconnect negative
terminal from battery.
Place “NO FIRE” signs near the working area.
Be careful not to Spill fuel on the floorILLUSTRATION
B2M3876
TOOL NUMBER
24082AA150
(Newly adopted
tool)
22771 AA030
DESCRIPTION
CARTRIDGE
SELECT MONI-
TOR KIT
REMARKS
Troubleshooting for electrical system.
Troubleshooting for electrical systems.
English: 22771AA030 (Without printer)
German: 22771AA070 (Without printer)
French: 22771AA080 (Without printer)
Spanish: 22771 AA090 (Without printer)
FU(D0HC TURBO)-13
THROTTLE BODY
FUEL INJECTION (FUEL SYSTEMS)
2. Throttle Body
A: REMOVAL
1) Disconnect the battery ground cable.
2) Remove the intercooler. TURBO)-1 0, REMOVAL, Intercooler.>
3) Disconnect the connector from the throttle position sensor (A) and idle air cotrol solenoid valve (B)
and pressure sensor (C).
4) Disconnect the accelerator cable.
5) Disconnect the engine coolant hoses from the
throttle body.
6) Remove the bolts which secure the throttle body
to intake manifold.
6: INSTALLATION
Install in the reverse order of removal.
NOTE:
Always use a new gasket.
Tightening torque:
22 N-m (2.2 kgf-m, 15.9 M b )
/ / EN0785
FU(D0HC TURBO)-14
a FUEL INJECTION (FUEL SYSTEMS)
INTAKE MANIFOLD
3. Intake Manifold
A: REMOVAL
1) Release the fuel pressure. OPERATION, Fuel.>
2) Disconnect the battery ground cable.
TURBO)-51, RELEASING OF FUEL PRESSURE,
3) Lift up the vehicle.
4) Remove the under cover.
5) Drain the coolant about 3.0 0 (3.2 US qt, 2.6
Imp qt).
6) Remove the air cleaner upper cover and air intake boot.
7) Remove the air cleaner element.
8) Remove the intercooler. TURBO)-1 0, REMOVAL, Intercooler.>
9) Disconnect the accelerator cable.
10) Remove the coolant filler tank. REMOVAL, Coolant Filler Tank.>
11) Remove the power steering pump.
(1) Remove the front side V-belt.

(2) Disconnect the power steering switch connector.
(3) Remove the bolts which secure the power
steering pipe brackets to the intake manifold.
NOTE:
Do not disconnect the power steering hose.
(4) Remove the bolts which secure the power
steering pump bracket.
FU(D0HC TURBO)-15
INTAKE MANIFOLD
FUEL INJECTION (FUEL SYSTEMS)
(5) Remove the power steering tank from the
bracket by pulling it upward.
(6) Place the power steering pump on the right
side wheel apron.
12) Disconnect the emission hose from the PCV
valve.
13) Disconnect the engine coolant hoses from the
throttle body.
14) Disconnect the brake booster hose.
- EN0204
15) Disconnect the pressure hose from the intake
duct.
16) Disconnect the engine harness connectors
from the bulkhead harness connectors.
FU(D0HC TURBO)-16
FUEL INJECTION (FUEL SYSTEMS)
INTAKE MANIFOLD
17) Disconnect the connectors from the engine
coolant temperature sensor (A), oil pressure switch
(B) and crankshaft position sensor (C).
v .
18) Disconnect the knock sensor connector.
S2M1613
19) Disconnect the connector from the camshaft
position sensor.
21) Disconnect the engine harness fixed by clip (A)
from the bracket.
\I II
(6)
S2M2256A
22) Disconnect the fuel delivery hose, return hose
and evaporation hose.
WARNING:
Catch the fuel from hoses in a container.
23) Remove the bolts which secure the intake manifold to the cylinder heads.
20) Disconnect the connector from the ignition coil.
24) Remove the intake manifold.
EN0854
FU(D0HC TURBO)-17
INTAKE MANIFOLD
FUEL INJECTION (FUEL SYSTEMS)
B: INSTALLATION
1) Install the intake manifold onto cylinder heads.
NOTE:
Always use new gaskets.
Tightening torque:
25 N-m (2.5 kgf-m, 18.1 ft-16)
2) Connect the fuel delivery hose, return hose, and
evaporation hose.
3) Connect the connector to the oil pressure switch
(B), crankshaft position sensor (C) and engine
coolant temperature sensor (A).
4) Connect the connector to the knock sensor.
S2M1613
5) Connect the connector to the camshaft position
sensor.
6) Connect the connector to the ignition coil.
EN0854 I
7) Connect the engine harness with clip (A) to the
bracket.
FU(D0HC TURBO)-I8
INTAKE MANIFOLD
FUEL INJECTION (FUEL SYSTEMS)
8) Connect the engine harness connector to the
bulkhead harness connectors.
9) Connect the brake booster vacuum hose.
EN0204
10) Connect the engine coolant hoses to the throttle body.
11) Connect the emission hose to the PCV valve.
12) Connect the pressure hose to the intake duct.
\
EN0787
13) Install the power steering pump.
(1) Install the power steering tank on the bracket.
n/ EN0361
(2) Connect the connector to the power steering
pump switch.
FU(D0HC TURBO)-19
INTAKE MANIFOLD
FUEL INJECTION (FUEL SYSTEMS)
(3) Install the power steering pump, and tighten 19) Connect the connector to the fuel pump relay.
the bolts.
22 N.m (2.2 kgf-m, 15.9 ff-16)
Tightening torque:
20) Connect the battery ground cable.
21) Lift up the vehicle.
22) Install the under cover.
23) Fill the coolant. the right side intake manifold. COOLANT, Engine Coolant.>
(5) Install the front side V-belt.

14) Install the cooler filler tank. STALLATION, Coolant Filler Tank.>
15) Connect the accelerator cable.
IN-
16) Install the intercooler.
17) Install the air cleaner element.
18) Install the air cleaner upper cover and air intake
duct as a unit.
FU(D0HC TURBO)-20
INTAKE MANIFOLD
FUEL INJECTION (FUEL SYSTEMS)
C: DISASSEMBLY
1) Remove the fuel pipe protector LH.
2) Remove the fuel pipe protector RH.
3) Remove the engine ground terminal from the intake manifold.
EN0795
6
4) Disconnect the connector from the throttle position sensor (A), idle air control solenoid valve (B)
and pressure sensor (C).
5) Disconnect the engine harness fixed by clip (D)
from the intake manifold.
6) Remove the throttle body from the intake manifold.
. // EN0785
7) Disconnect the connector from the fuel injector.
I I EN0798
8) Disconnect the connector from the tumble generator valve actuator.
J EN079E
FU(D0HC TURBO)-21
INTAKE MANIFOLD
FUEL INJECTION (FUEL SYSTEMS)
9) Disconnect the connector from the tumble generator valve sensor.
13) Disconnect the evaporation hoses from the
purge valve.
I EN0800 ---. I EN0804
10) Disconnect the connector from the purge control solenoid valve.
14) Remove the two bolts which hold the fuel pipes
on the left side of intake manifold.
11) Remove the purge control solenoid valve.
12) Disconnect the evaporation hose from the intake manifold.
EN0803
FU(D0HC TURBO)-22
INTAKE MANIFOLD
FUEL INJECTION (FUEL SYSTEMS)
15) Remove the bolt which hold the fuel injector
pipe onto intake manifold.
LH SIDE
EN0806 I
EN0807 I I ’
RH SIDE
I EN0808
16) Remove the fuel injector.
17) Remove the harness bracket which hold the
engine harness onto intake manifold.
18) Remove the engine harness from the intake
manifold.
19) Loosen the clamp which holds the front left side
fuel hose to injector pipe and remove the pipe from
clamp.
I I I I I EN081 2
20) Remove the fuel injector pipe LH.
21) Remove the bolts which installs the fuel pipe on
intake manifold.
FU(D0HC TURBO)-23
INTAKE MANIFOLD
FUEL INJECTION (FUEL SYSTEMS)
7
EN081 5
22) Remove the fuel pipe assembly and pressure
regulator, from the intake manifold.
23) Remove the intake duct from the intake manifold.
24) Remove the tumble generator valve assembly
from the intake manifold.
D: ASSEMBLY
NOTE:
Replace the gasket with a new one.
1) Install the tumble generator valve assembly to
the intake manifold.
Tightening torque:
8.25 N.m (0.84 kgf-m, 6.08 ft-lb)
2) Install the air intake duct to the intake manifold.
Tightening torque:
19 N-m (1.94 kgf-m, 13.7 ft-lb)
3) Install the fuel pipe assembly and pressure regulator, to the intake manifold.
Tightening torque:
4.9 N.m (0.5 kgf-m, 3.6 ft-lb)
4) Install the fuel injector pipe LH.
5) Connect the left side fuel hose to injector pipe,
and tighten the clamp screw.
EN081; / I I I \
6) Install the engine harness to the intake manifold.
FU(D0HC TURBO)-24
m INTAKE MANIFOLD
FUEL INJECTION (FUEL SYSTEMS)
_ _ _ _ ~
7) Install the harness bracket which hold the engine 9) Tighten the bolt which install the fuel injector
harness onto intake manifold.
Tightening torque:
-
19 N.m (1.94 kgf-m, 13.7 ft-lb)
. -
pipe onto intake manifold.
Tightening torque:
LH SIDE
19 N.m (1.94 kgf-m, 13.7 fi-lb)
8) Install the fuel injector EN0806
I EN0807 ENO~IO
RH SIDE
FU(D0HC TURBO)-25
INTAKE MANIFOLD
FUEL INJECTION (FUEL SYSTEMS)
10) Tighten the two bolts which install the fuel pipes
on the left side of intake manifold.
Tightening torque:
4.9 N-m (0.5 kgf-m, 3.6 ff-lb)
11) Connect the evaporation hoses to the purge
valve.
CAUTION:
Carefully connect the evaporation hoses.
(D)---
lJ EN081 6
12) Connect the evaporation hose to the intake
manifold.
EN080:
13) Install the purge control solenoid valve.
Tightening torque:
16 N-m (1.6 kgf-m, 11.8 ff-lb)
14) Connect the hoses to the purge control solenoid valve.
CAUTION:
Carefully connect the evaporation hoses.
(A) To fuel pipe ASSY
(B) To intake duct
(C) To purge control solenoid valve
(D) To intake manifold
(A) To intake manifold
(B) To purge valve
FU(D0HC TURBO)-26
INTAKE MANIFOLD
FUEL INJECTION (FUEL SYSTEMS)
15) Connect the connector to the purge control solenoid valve.
16) Connect the connector to the tumble generator
valve sensor.
/ /
EN0800
17) Connect the connector to the tumble generator
valve actuator.
J EN0799
18) Connect the connector to the fuel injector.
I I I EN0798
19) Install the throttle body to the intake manifold.
NOTE:
Replace gasket with a new one.
Tightening torque:
22 N-m (2.2 kgf-m, 15.9 fl-lb)
EN0785
20) Connect the connector to the throttle position
sensor (A), idle air control solenoid valve (B) and
pressure sensor (C).
21) Connect the engine harness with clip (D) to the
intake manifold.
( D) S2M2249A (D,
FU(D0HC TURBO)-27
INTAKE MANIFOLD
FUEL INJECTION (FUEL SYSTEMS)
22) Install the engine ground terminal to the intake E: lNSPECTlON
manifold.
Tightening torque:
79 N.m (7.94 kgf-m, 73.7 ft-lb)
Make sure the fuel pipe and fuel hoses are not
cracked and that connections are tight.
23) Install the fuel pipe protector RH.
Tightening torque:
79 N-m (7.94 kgf-m, 73.7 ft-lb)
24) Install the fuel pipe protector LH.
Tightening torque:
79 N.m (7.94 kgf-m, 73.7 ft-lb)
FU(D0HC TURBO)-28
ENGINE COOLANT TEMPERATURE SENSOR
FUEL INJECTION (FUEL SYSTEMS)
4. Engine Coolant Temperature B: INSTALLATION
Sensor
A: REMOVAL
1) Disconnect the battery ground cable.
2) Remove the generator
3) Disconnect the connector from the engine coolant temperature sensor.
4) Remove the engine coolant temperature sensor.
Install in the reverse order of removal.
Tigh fening torque:
18 N.m (1.8 kgf-m, 13.3 fi-lb)
FU(D0HC TURBO)-29
CRANKSHAFT POSITION SENSOR
I
FUEL INJECTION (FUEL SYSTEMS)
5. Crankshaft Position Sensor B: INSTALLATION
A: REMOVAL
1) Disconnect the battery ground cable.
Install in the reverse order of removal.
Tightening torque:
T: 6.4 N.m (0.65 kgf-m, 4.7 ff-lb)
2) Remove the bolt which install the crankshaft position sensor to cylinder block.
3) Remove the crankshaft position sensor, and disconnect the connector from it.
FU(D0HC TURBO)-30
CAMSHAFT POSITION SENSOR
FUEL INJECTION (FUEL SYSTEMS)
6. Camshaft Position Sensor B: INSTALLATION
A: REMOVAL
1) Disconnect the battery ground cable.
Install in the reverse order of removal.
Tightening torque:
T: 6.4 Nom (0.65 kgf-m, 4.7 ft-lb)
sition sensor.
2) Disconnect the connector from the camshaft po3) Remove the hcamshaft position sensor from the
camshaft support LH
1 IG2M0417
FU(D0HC TURBO)-31
KNOCK SENSOR
FUEL INJECTION (FUEL SYSTEMS)
7. Knock Sensor
A: REMOVAL
1) Disconnect the battery ground cable.
2) Remove the intercooler. TURBO)-1 0, REMOVAL, Intercooler.>
3) Disconnect the knock sensor connector.
4) Remove the knock sensor from the cylinder
block.
B: INSTALLATION
1) Install the knock sensor to the cylinder block.
Tightening torque:
NOTE:
The extraction area of the knock sensor cord must
be positioned at a 60" angle relative to the engine
rear.
24 N.m (2.4 kgf-m, 17.4 ft-lb)
~~
(A) Front side
2) Connect the knock sensor connector
3) Install the intercooler.
4) Connect the battery ground cable.
FU(D0HC TURBO)-32
THROTTLE POSITION SENSOR
FUEL INJECTION (FUEL SYSTEMS)
8. Throttle Position Sensor
A: REMOVAL
1) Disconnect the battery ground cable.
2) Remove the intercooler. TURBO)-1 0, REMOVAL, Intercooler.>
3) Disconnect the connector from the throttle position sensor.
4) Remove the throttle position sensor holding
screws, and remove it.
B: INSTALLATION
Install in the reverse order of removal.
Tightening torque:
1.6 N.m (0.16 kgf-m, 1.2 ft-lb)
0
FU(D0HC TURBO)-33
MASS AIR FLOW AND INTAKE AIR TEMPERATURE SENSOR
FUEL INJECTION (FUEL SYSTEMS)
9. Mass Air Flow and Intake Air B: INSTALLATION
Temperature Sensor
A: REMOVAL
1) Disconnect the battery ground cable.
Install in the reverse order of removal.
Tightening torque:
7.5 N-m (0.76 kgf-m, 5.5 ft-lb)
2) Disconnect the connector mass air flow and intake air temperature sensor.
3) Remove the mass air flow and intake air temperature sensor.
FU(D0HC TURBO)-34
#a PRESSURE SENSOR
FUEL INJECTION (FUEL SYSTEMS)
1O.Pressure Sensor
A: REMOVAL
1) Disconnect the battery ground cable.
2) Remove the idle air control solenoid valve. to FU(D0HC TURBO)-36, REMOVAL, Idle Air
Control Solenoid Valve.>
3) Disconnect the connectors from pressure sensor.
4) Remove the pressure sensor from the throttle
body.
B: INSTALLATION
Install in the reverse order of removal.
NOTE:
Replace the O-ring for the pressure sensor with
new ones.
Tightening torque:
1.6 N-m (0.16 kgf-m, 1.2 ft-16)
FU(D0HC TURBO)-35
IDLE AIR CONTROL SOLENOID VALVE
FUEL INJECTION (FUEL SYSTEMS)
11 .Idle Air Control Solenoid
Valve
A: REMOVAL
1) Disconnect the battery ground cable.
B: INSTALLATION
Install in the reverse order of removal.
NOTE:
Always use a new gasket.
Tightening torque:
2.8 N-m (0.29 kgf-m, 2.1 fWb)
2) Disconnect the connector from the idle air control solenoid valve.
I
EN0822
3) Remove the idle air control solenoid valve from
the throttle body.
I
4) Remove the gasket from throttle body.
FU( DOHC TU RB0)-36
FUEL INJECTOR
FUEL INJECTION (FUEL SYSTEMS)
12.Fuel Injector
A: REMOVAL
1. RH SIDE
1) Remove the intake manifold. TURBO)-1 5, REMOVAL, Intake Manifold.>
2) Remove the fuel pipe protector RH.
5) Remove the fuel injector while lifting up the fuel
injector pipe.
2. LH SIDE
1) Remove the intake manifold. TURBO)-1 5, REMOVAL, Intake Manifold.>
2) Remove the fuel pipe protector LH.
I I
3) Disconnect the connector from the fuel injector.
3) Disconnect the connector from the fuel injector.
I I I EN0798 1
4) Remove the bolts which hold the injector pipe to
intake manifold.
n n
EN0808
I I EN0798
FU(D0HC TURBO)-37
FUEL INJECTOR
FUEL INJECTION (FUEL SYSTEMS)
4) Remove the bolts which hold the injector pipe to
intake manifold.
B: INSTALLATION
I /J EN0807
I EN0806 I
1. RH SIDE
Install in the reverse order of removal.
NOTE:
Replace the O-ring and insulators with new ones.
(A) O-ring
(B) Fuel injector
(C) insulator
Tightening torque:
19 N-m (1.94 kgf-m, 13.7 ff-lb)
EN0808
5) Remove the fuel injector while lifting up the fuel
injector pipe.
Tightening torque:
19 N.m (1.94 kgf-m, 13.7 ff-lb)
EN0824 EN0809
FU(D0HC TURBO)-38
FUEL INJECTOR
FUEL INJECTION (FUEL SYSTEMS)
Tightening torque:
19 N-m (1.94 kgf-m, 13.7 ff-lb)
Tightening torque:
19 N.m (1.94 kgf-m, 13.7 ft-lb)
2. LH SIDE
Install in the reverse order of removal.
NOTE:
Replace the O-ring and insulators with new ones.
I B
(A) O-ring
(B) Fuel injector
(C) Insulator
Tightening torque:
4.9 N.m (0.5 kgf-m, 3.6 ff-lb)
EN080E
Tightening torque:
19 N.m (1.94 kgf-m, 13.7 ft-lb)
EN080: I
Tightening torque:
19 N.m (1.94 kgf-m, 13.7 ft-lb)
FU(D0HC TURBO)-39
TUMBLE GENERATOR VALVE ASSEMBLY
FUEL INJECTION (FUEL SYSTEMS)
13.Tumble Generator Valve Assembly
A: REMOVAL
1) Disconnect the battery ground cable.
2) Remove the intake manifold. TURBO)-I 5, REMOVAL, Intake Manifold.>
3) Disconnect the connector from the tumble generator valve sensor.
EN0800
4) Disconnect the connector from the tumble generator valve actuator.
J EN0799
5) Remove the fuel injector. TURBO)-37, REMOVAL, Fuel Injector.>
6) Remove the tumble generator valve body from
the intake manifold.
B: INSTALLATION
Install in the reverse order of removal.
NOTE:
Always use new gaskets.
Tightening torque:
8.25 N.m (0.84 kgf-m, 6.1 ft-lb)
EN0815
FU(D0HC TURBO)-40
~
WASTEGATE CONTROL SOLENOID VALVE
FUEL INJECTION (FUEL SYSTEMS)
14.Wastegate Control Solenoid
Valve
A: REMOVAL
1) Disconnect the battery ground cable.
2) Remove the solenoid valve cover.
I
I
3) Disconnect the connector (A) from the wastegate control solenoid valve.
4) Disconnect the pressure hoses (B) from the
wastegate control solenoid valve.
I
5) Remove the wastegate control solenoid valve
from the bracket
B: INSTALLATION
Install in the reverse order of removal.
Tightening torque:
6.4 N.m (0.65 kgf-m, 4.7 ff-lb)
/ EN0830
FU(D0HC TURBO)-41
FRONT OXYGEN (NF) SENSOR
FUEL INJECTION (FUEL SYSTEMS)
15.Front Oxygen (NF) Sensor
A: REMOVAL
1) Disconnect the battery ground cable.
2) Remove the solenoid valve cover
3) Disconnect the connector from the front oxygen
(NF) sensor.
4) Disconnect the engine harness fixed by clip (A)
from the bracket (6).
6) Lift-up the vehicle.
7) Remove the service hole cover
I1 EN0832
8) Apply SUBARU CRC or its equivalent to the
threaded portion of front oxygen (NF) sensor, and
leave it for one minute or more.
SUBARU CRC (Part No. 004301003)
9) Remove the front oxygen (NF) sensor.
CAUTION:
When removing the oxygen (NF) sensor, wait
until exhaust pipe cools, otherwise it will damage exhaust pipe.
5 ) Remove the front right side wheel.
FU(D0HC TURBO)-42
FRONT OXYGEN (NF) SENSOR
FUEL INJECTION (FUEL SYSTEMS)
B: INSTALLATION
1) Before installing front oxygen (NF) sensor, apply
the anti-seize compound only to the threaded portion of front oxygen (NF) sensor to make the next
removal easier.
Anti-seize compound:
CAUTION:
Never apply anti-seize compound to protector
of front oxygen (NF) sensor.
2) Install the front oxygen (NF) sensor.
Tightening torque:
SS-30 by JET LUBE
21N.m (2.1 kgf-m, 15.2 ff-lb)
I
I I
3) Install the service hole cover.
I n EN0832
4) Lower the vehicle.
5) Install the front right side wheel.
6) Connect the engine harness with clip (A) to the
bracket (B).
7) Connect the connector of front oxygen (NF) sensor.
8) Install the solenoid valve cover.
9) Connect the battery ground cable.
FU(D0HC TURBO)-43
REAR OXYGEN SENSOR
FUEL INJECTION (FUEL SYSTEMS)
16.Rear Oxygen Sensor
A: REMOVAL
1) Disconnect the battery ground cable.
2) Lift-up the vehicle.
3) Disconnect the connector from the rear oxygen
sensor.
4) Remove the clip by pulling out from the upper
side of crossmember.
I I S2M2254
5) Apply SUBARU CRC or its equivalent to the
threaded portion of rear oxygen sensor, and leave
it for one minute or more.
SUBARU CRC (Part No. 004301003)
6) Remove the rear oxygen sensor.
CAUTION:
When removing the oxygen sensor, wait until
exhaust pipe cools, otherwise it will damage exhaust pipe.
B: INSTALLATION
1) Before installing rear oxygen sensor, apply the
anti-seize compound only to the threaded portion of
rear oxygen sensor to make the next removal easier.
CAUTION:
Never apply anti-seize compound to protector
of rear oxygen sensor.
Anti-seize compound:
2) Install the rear oxygen sensor.
Tightening torque:
21 N.m (2.1 kgf-m, 15.2 W b )
SS-30 by JET LUBE
3) Connect the connector to the rear oxygen sensor.
FU(D0HC TURBO)-44
REAR OXYGEN SENSOR
FUEL INJECTION (FUEL SYSTEMS)
4) Connect the clip to the crossmember.
S2M2254
5) Lower the vehicle.
6) Connect the battery ground cable.
FU(D0HC TURBO)-45
EXHAUST TEMPERATURE SENSOR
FUEL INJECTION (FUEL SYSTEMS)
17.Exhaust Temperature Sensor
A: REMOVAL
1) Disconnect the battery ground cable.
2) Remove the joint pipe.
3) Apply SUBARU CRC or its equivalent to the
threaded portion of exhaust temperature sensor,
and leave it for one minute or more.
SUBARU CRC (Part No. 004301003)
4) Remove the exhaust temperature sensor.
CAUTION:
When removing the oxygen sensor, wait until
exhaust pipe cools, otherwise it will damage exhaust pipe.
B: INSTALLATION
1) Before installing exhaust temperature sensor,
apply the anti-seize compound only to the threaded
portion of rear oxygen sensor to make the next removal easier.
CAUTION:
Never apply anti-seize compound to protector
of exhaust temperature sensor.
An ti-seize compound:
2 ) Install the exhaust temperature sensor.
NOTE:
Align the marking (A) of exhaust temperature sensor to the marking (B) of joint pipe, and tighten the
screws.
Tightening torque:
SS-30 by JET LUBE
21 N-m (2.1 kgf-m, 15.2 ft-lb)
S2M2255A
3) Install the joint pipe .
4) Connect the battery ground cable.
FU(D0HC TURB0)-46
ENGINE CONTROL MODULE
I
FUEL INJECTION (FUEL SYSTEMS)
18.Engine Control Module
A: REMOVAL
1) Disconnect the battery ground cable.
2) Remove the lower inner trim of the passenger
side.

3) Detach the floor mat of the front passenger seat.
4) Remove the protect cover.
I EN118E
5) Remove the nuts (A) which hold ECM to the
bracket.
6) Remove the clip (B) from the bracket.
B: INSTALLATION
Install in the reverse order of removal.
CAUTION:
When replacing ECM, be careful not to use the
wrong spec. ECM to avoid any damage to the
fuel injection system.
7) Disconnect the ECM connectors and take out
the ECM.
FU( DOHC TU RB0)-47
MAIN RELAY
FUEL INJECTION (FUEL SYSTEMS)
19.Main Relay
A: REMOVAL
1) Disconnect the battery ground cable.
2) Remove the passenger’s side front side sill cover.
3) Remove the bolt which holds the main relay
bracket on the body.
4) Disconnect the connectors from the main relay.
B: INSTALLATION
Install in the reverse order of removal.
FU(D0HC TURBO)-48
FUEL PUMP RELAY
FUEL INJECTION (FUEL SYSTEMS)
2O.Fuel Pump Relay
A: REMOVAL
1) Disconnect the battery ground cable.
2) Remove the passenger’s side front side sill cover.
3) Remove the bolt which holds fuel pump relay
bracket on the body.
4) Disconnect the connector from the fuel pump relay.
5) Remove the fuel pump relay from the mounting
bracket.
B: INSTALLATION
Install in the reverse order of removal.
FU(D0HC TURBO)-49
FUEL PUMP CONTROLLER
FUEL INJECTION (FUEL SYSTEMS)
21 .Fuel Pump Controller
A: REMOVAL
1) Disconnect the battery ground cable.
2) Remove the rear quarter trim. REMOVAL, Rear Quarter Trim.>
3) Disconnect the connector from the fuel pump
control unit.
4) Remove the fuel pump control unit.
B: INSTALLATION
Install in the reverse order of removal.
FU(D0HC TURBO)-50
FUEL
FUEL INJECTION (FUEL SYSTEMS)
22.Fuel
A: OPERATION
1. RELEASING OF FUEL PRESSURE
WARNING:
Place “NO FIRE” signs near the working area.
Be careful not to spill fuel on the floor.
1) Disconnect the connector from the fuel pump relay.
2) Start the engine and run it until it stalls.
3) After the engine stalls, crank it for five more seconds.
4) Turn the ignition switch to OFF.
2. DRAINING FUEL
WARNING:
Place “NO FIRE” signs near the working area.
Be careful not to spill fuel on the floor.
1) Set the vehicle on the lift.
2) Disconnect the battery ground cable.
3) Lift-up the vehicle.
4) Drain the fuel from the fuel tank.
Set a container under the vehicle and remove drain
plug from the fuel tank.
5 ) Tighten the fuel drain plug.
Tightening torquer
26 N-m (2.65 kgf-m, 19.2 ff-lb)
FU(D0HC TURBO)-51
FUEL TANK
FUEL INJECTION (FUEL SYSTEMS)
23.Fuel Tank
A: REMOVAL
WARNING:
Place “NO FIRE” signs near the working area.
Be careful not to spill fuel on the floor.
1) Set the vehicle on the lift.
2) Release the fuel pressure. OPERATION, Fuel.>
3) Drain the fuel from the fuel tank. ATION, Fuel.>
4) Remove the rear seat.
5) Disconnect the connector (A) of fuel tank cord to
the rear harness.
6) Push the grommet (B) which holds the fuel tank
cord on floor panel into under the body.
TURBO)-51, RELEASING OF FUEL PRESSURE,
FU(D0HC TURBO)-51, DRAINING FUEL, OPER-
7) Remove the rear crossmember. REMOVAL, Rear Crossmember.>
8) Move the clamp, and disconnect the evaporation
hose from canister.
I
S2M0949j
I I
9) Disconnect the connector from the pressure control solenoid valve.
10) Disconnect the connector from the drain valve.
B2M174:
11) Loosen the clamp and disconnect the fuel filler
hose (A) and air vent hose (B) from fuel filler pipe
and air vent pipe.
S2M0193A
12) Move the clips, and disconnect the quick connector.
13) Disconnect the fuel hoses.
FU(D0HC TURBO)-52
FUEL TANK
FUEL INJECTION (FUEL SYSTEMS)
14) Support the fuel tank with transmission jack, remove the bolts from bands and dismount the fuel
tank from vehicle.
WARNING:
A helper is required to perform this work.
4) Connect the fuel hoses, and hold them with clips
and quick connector. Evaporation Lines.>
5) Connect the connector to the drain valve.
B: INSTALLATION
1) Support the fuel tank with transmission jack and
push the fuel tank harness into the access hole with
grommet.
2) Set the fuel tank and temporarily tighten the bolts
of fuel tank bands.
WARNING:
A helper is required to perform this work.
02M 1743
3) Connect the fuel filler hose and air vent hose.
S2M0193A
6) Connect the connector to the pressure control
solenoid valve.
7) Connect the evaporation hose to the canister,
and hold them with clamp.
I
S2M0949A
I /
FU(D0HC TURBO)-53
FUEL TANK
FUEL INJECTION (FUEL SYSTEMS)
8) Tighten the band mounting bolts.
Tightening torque:
33 N-m (3.4 kgf-m, 25 ft-lb)
2M2246
9) Install the rear crossmember. INSTALLATION, Rear Crossmember.>
10) Connect the connector (A) to the fuel tank cord
and plug the service hole with gromment (B).
EN053i
11) Set the rear seat and floor mat.
12) Connect the connector to the fuel pump relay.
C: INSPECTION
1) Make sure there are no cracks, holes, or other
damage on the fuel tank.
2) Make sure that the fuel hoses and fuel pipes are
not cracked and that connections are tight.
FU(D0HC TURBO)-54
FUEL FILLER PIPE
FUEL INJECTION (FUEL SYSTEMS)
24.Fuel Filler Pipe
A: REMOVAL
WARNING:
Place “NO FIRE” signs near the working area.
Be careful not to spill fuel on the floor.
1) Release the fuel pressure. OPERATION, Fuel.>
2) Open the fuel filler flap lid and remove the filler
cap.
3) Disconnect the battery ground cable.
TURBO)-51, RELEASING OF FUEL PRESSURE,
4) Remove the screws holding packing in place.
’ EN0542
5) Lift-up the vehicle.
6) Remove the rear right side wheel nuts.
7) Remove the rear right side wheel.
8) Drain the fuel from fuel tank. Set a container under the vehicle and remove the drain plug from fuel
tank.
9) Tighten the fuel drain plug and then install the
front right side tank cover.
Tightening torque:
26 N-m (2.65 kgf-m, 19.2 ff-lb)
IO) Remove the fuel filler pipe protector.
EN0544
11) Separate the evaporation hoses from the clip of
fuel filler pipe.
FU(D0HC TURBO)-55
I
FUEL FILLER PIPE
FUEL INJECTION (FUEL SYSTEMS)
12) Disconnect the evaporation hoses from the
pipes.
17) Remove the air vent pipe together with clip from
the body.
13) Remove the bolts which hold fuel filler pipe
bracket on the body.
I
EN1124
14) Loosen the clamp and separate the fuel filler
hose (A) from fuel filler pipe.
15) Move the clip and separate the evaporation
hose (B).
16) Remove the fuel filler pipe to under side of the
vehicle.
B:
1) t
I N STA LLATlO N
Ad the fuel filler flap open.
2) Set the fuel saucer (A) -with rubber packing (C)
and insert the fuel filler pipe into the hole from the
inner side of apron.
3) Align the holes in fuel filler pipe neck and set the
cup (B), and tighten the screws.
NOTE:
If edges of rubber packing are folded toward the inside, straighten it with a screwdriver.
FU(D0HC TURBO)-56
FUEL FILLER PIPE
FUEL INJECTION (FUEL SYSTEMS)
4) Install the evaporation pipes.
5) Connect the evaporation hose to pipes.
Ill EN1123
6) Insert the fuel filler hose (A) approximately 35 to
40 mm (1.38 to 1.57 in) over the lower end of fuel
filler pipe and tighten the clamp.
CAUTION:
Do not allow clips to touch air vent hose (B) and
rear suspension crossmember.
7) Insert the air vent hose approximately 25 to 30
mm (0.98 to 1.18 in) into the lower end of air vent
pipe and hold clip.
L = 27.5e.5 mm (1.083fo.098 in)
L
B2M1195A
(1) Hose
(2) Clip
(3) Pipe
8) Tighten the bolt which holds fuel filler pipe bracket on the body.
Tightening torque:
7.4 N.m (0.75 kgf-m, 5.4 ft-lb)
EN1124
9) Tighten the bolts which hold evaporation hoses
onto the clip of fuel filler pipe.
FU( DOHC TU RBO)-57
FUEL FILLER PIPE
FUEL INJECTION (FUEL SYSTEMS)
10) Install the fuel filler pipe protector.
EN0544 I
11) Install the rear right wheel.
12) Lower the vehicle.
13) Tighten the wheel nuts.
14) Connect the connector to the fuel pump relay.
15) Connect the battery ground terminal.
C: DISASSEMBLY
1) Move the clip, and disconnect the evaporation
hose from joint pipe.
EN112E
2) Remove the bolt which installs the joint pipe on
fuel filler pipe.
3) Disconnect the evaporation hose from the fuel
filler pipe.
4) Remove the shut valve from the fuel filler pipe.
Valve.>
FU(D0HC TURBO)-58
FUEL FILLER PIPE
FUEL INJECTION (FUEL SYSTEMS)
D: ASSEMBLY
1) Install the shut valve on the fuel filler pipe. Valve.>
2) Connect the evaporation hose to the fuel filler
pipe.
to EC(D0HC TURBO)-16, INSTALLATION, Shut
3) Connect the evaporation hose to the evaporation
pipe.
4) Install the evaporation pipe to the fuel filler pipe.
FU(D0HC TURBO)-59
FUEL PUMP
FUEL INJECTION (FUEL SYSTEMS)
25.Fuel Pump
A: REMOVAL
WARNING:
Place “NO FIRE” signs near the working area.
Be careful not to spill fuel on the floor.
NOTE:
Fuel pump assembly consists of fuel pump and fuel
level sensor.
1) Release the fuel pressure. OPERATION, Fuel.>
2) Open the fuel filler flap lid and remove the fuel
filler cap.
3) Disconnect the battery ground cable.
TURBO)-51, RELEASING OF FUEL PRESSURE,
4) Lift-up the vehicle.
5) Drain the fuel from fuel tank. Set a container under the vehicle and remove the drain plug from fuel
tank.
6) Tighten the fuel drain plug.
Tigh tening torque:
26 N.m (2.65 kgf-m, 19.2 ff-lb)
7) Raise the rear seat and turn the floor mat up.
8) Remove the access hole lid.
I I I I I 1 I
.
EN0552
9) Disconnect the connector from the fuel pump.
10) Disconnect the quick connector and then disconnect the fuel delivery hose (A). FU(D0HC TURBO)-68, Fuel Delivery, Return and
Evaporation Lines.>
FU(D0HC TURBO)-60
FUEL PUMP
FUEL INJECTION (FUEL SYSTEMS)
11) Move the clips, and then disconnect the fuel return hose (6) and jet pump hose (C).
12) Remove the nuts which install the fuel pump
assembly onto fuel tank.
S2M0061 I
13) Take off the fuel pump assembly from the fuel
tank.
B: INSTALLATION
Install in the reverse order of removal. Do the following:
(1) Always use new gaskets.
(2) Ensure the sealing portion is free from fuel or
foreign particles before installation.
(3) Tighten the nuts in alphabetical sequence
shown in figure to specified torque.
Tightening torque:
4.4 N.m (0.45 kgf-m, 3.3 ft-lb)
S2M0063A
C: INSPECTION
Connect the lead harness to the connector terminal
of fuel pump and apply battery power supply to
check whether the pump operate.
WARNING:
Wipe off the fuel completely.
Keep battery as far apart from fuel pump as
possible.
Be sure to turn the battery supply ON and
OFF on the battery side.
Do not run fuel pump for a long time under
non-load condition.
FU(D0HC TURBO)-61
FUEL LEVEL SENSOR
FUEL INJECTION (FUEL SYSTEMS)
26.Fuel Level Sensor
A: REMOVAL
WARNING:
Place “NO FIRE” signs near the working area.
Be careful not to spill fuel on the floor.
NOTE:
Fuel level sensor is built in fuel pump assembly.
1) Remove the fuel pump assembly. FU(D0HC TURBO)-60, REMOVAL, Fuel Pump.>
2) Disconnect the connector from the fuel pump
bracket.
3) Remove the bolt which installs the fuel level sensor on mounting bracket.
B: INSTALLATION
Install in the reverse order of removal.
FU(D0HC TURBO)-62
FUEL SUB LEVEL SENSOR
FUEL INJECTION (FUEL SYSTEMS)
27.Fuel Sub Level Sensor
A: REMOVAL
WARNING:
Place “NO FIRE” signs near the working area.
Be careful not to spill fuel on the floor.
1) Disconnect the battery ground cable.
2) Lift-up the vehicle.
3) Drain the fuel from the fuel tank. Set a container
under the vehicle and remove drain plug from fuel
tank.
4) Tighten the fuel drain plug.
Tightening torque:
26 N.m (2.65 kgf-m, 79.2 ft-lb)
5) Remove the rear seat.
6) Remove the service hole cover.
G2M0863 /
7 ) Disconnect the connector from the fuel
meter.
8) Disconnect the fuel jet pump hose.
// / S2M0151
sub
9) Remove the bolts which install the fuel sub meter
unit on fuel tank.
10) Remove the fuel sub meter unit.
\
FU(D0HC TURBO)-63
FUEL SUB LEVEL SENSOR
FUEL INJECTION (FUEL SYSTEMS)
B: INSTALLATION
Install in the reverse order of removal.
Tightening torque:
4.4 N-m (0.45 kgf-m, 3.3 ff-lb)
FU(D0HC TURBO)-64
FUEL FILTER
FUEL INJECTION (FUEL SYSTEMS)
28. Fuel Filter
A: REMOVAL
WARNING:
Place “NO FIRE” signs near the working area.
Be careful not to spill fuel on the floor.
1) Release the fuel pressure. OPERATION, Fuel.>
2) Disconnect the fuel delivery hoses from the fuel
filter.
TURBO)-51, RELEASING OF FUEL PRESSURE,
3) Remove the filter from the holder.
B: INSTALLATION
CAUTION:
If fuel hoses are damaged at the connecting
portion, replace it with a new one.
If clamps are badly damaged, replace with
new ones.
1) Install in the reverse order of removal.
2) Tighten the hose clamp screws.
Tightening torque:
1.25 Nom (0.13 kgf-m, 0.94 ft-lb)
17
C: INSPECTION
1) Check the inside of fuel filter for dirt and water
sediment.
2) If it is clogged, or if replacement interval has
been reached, replace it.
3) If water is found in it, shake and expel the water
from the inlet port.
FU(D0HC TURBO)-65
FUEL CUT VALVE
FUEL INJECTION (FUEL SYSTEMS)
29.Fuel Cut Valve
A: REMOVAL
1) Remove the fuel tank.
2) Remove the protect cover.
I EN105C
3) Move the clip and disconnect the evaporation
hose from fuel cut valve.
I EN1131 I
4) Remove the bolts which install the fuel cut valve.
B: INSTALLATION
Install in the reverse order of removal.
Tightening torque:
4.4 N-m (0.45 kgf-m, 3.3 fWb)
EN1 132
FU( DOHC TU RB0)-66
FUEL DAMPER VALVE
FUEL INJECTION (FUEL SYSTEMS)
30.Fuel Damper Valve
A: REMOVAL
1) Release the fuel pressure. OPERATION, Fuel.>
2) Remove the fuel damper valve from the fuel return line.
TURBO)-51, RELEASING OF FUEL PRESSURE,
B: INSTALLATION
Install in the reverse order of removal.
Tightening torque:
1.25 N.m (0.13 kgf-m, 0.94 ft-lb)
FU(D0HC TURBO)-67
FUEL DELIVERY, RETURN AND EVAPORATION LINES
FUEL INJECTION (FUEL SYSTEMS)
3) Open the fuel filler flap lid and remove the fuel
filler cap.
4) Remove the floor mat.
5) Remove the fuel delivery pipes and hoses, fuel
return pipes and hoses, evaporation pipes and hos31 .Fuel Delivery, Return and
Evaporation Lines
A: REMOVAL
1) Set the vehicle on the lift.
2) Release the fuel pressure. OPERATION, Fuel.>
TURBO)-51, RELEASING OF FUEL PRESSURE,
EN1133
6) In engine compartment, detach the fuel delivery
hoses, return hoses and evaporation hose.
7) Lift-up the vehicle.
FU(D0HC TURBO)-68
FUEL DELIVERY, RETURN AND EVAPORATION LINES
FUEL INJECTION (FUEL SYSTEMS)
8) Separate the quick connector on the fuel delivery
and return line.
(1) Clean the pipe and connector, if they are
covered with dust.
(2) Hold the connector (A) and push retainer (B)
down.
(3) Pull out the connector (A) from retainer (B).
CAUTION:
Replace retainer with new ones.
(C)
S2M0228P
(A) Connector
(6) Retainer
(C) Pipe
B: INSTALLATION
1) Connect the quick connector on the fuel delivery
line.
CAUTION:
Always use a new retainer.
Make sure that the connected portion is not
damaged or has dust. If necessary, clean seal
surface of pipe.
I S2M0229f
(1) Set the new retainer (B) to connector (A).
(2) Push the pipe into the connector completely.
NOTE:
At this time, two clicking sounds are heard.
(C)
I
S2M0230E
(A) Connector
(B) Retainer
(C) Pipe
CAUTION:
Pull the connector to ensure it is connected
securely.
Ensure the two retainer pawls are engaged in
their mating positions in the connector.
Be sure to inspect hoses and their connections for any leakage of fuel.
(A) Connector
(6) Retainer
(C) Pipe
FU(D0HC TURBO)-69
FUEL DELIVERY, RETURN AND EVAPORATION LINES
FUEL INJECTION (FUEL SYSTEMS)
2) Connect the fuel delivery hose to the pipe with an
overlap of 20 to 25 mm (0.79 to 0.98 in).
Type A: When the fitting length is specified.
Type B: When the fitting length is not specified.
C: INSPECTION
1) Make sure that there are no cracks on the fuel
pipes and fuel hoses.
2) Make sure that the fuel pipe and fuel hose conQ : 2.5H.5 mm (0.098-M.059 in)
L: 22.5f2.5 mm (0.886M.098 in)
*Y B2M1194B
(1) Fitting
(2) Clamp
(3) Hose
3) Connect the return hose and evaporation hose
to the pipe by approx. 15 mm (0.59 in) from the
hose end.
Fuel return hose:
Fuel evaporation hose:
CAUTION:
Be sure to inspect hoses and their connections
for any leakage of fuel.
L = 22.532.5 mm (0.885-M.098 in)
L = 17.5f2.5 mm (0.689M.098 in)
I
B2M 1 195A
nections are tight.
(1) Hose
(2) Clip
(3) Pipe
FU(D0HC TURBO)-7O
FUEL SYSTEM TROUBLE IN GENERAL
FUEL INJECTION (FUEL SYSTEMS)
1)
32.Fuel System Trouble in GenA: INSPECTION
eral
Fuel pump will not operate.
0 Defective terminal contact.
0 Trouble in electromaanetic or electronic circuit parts.
Inspect connections, especially ground, and tighten
securely.
Replace fuel pump.
Trouble and possible cause 1 Corrective action
2)
3)
4)
5)
6)
7)
1. Insufficient fuel supply to the injector
Lowering of fuel pump function.
Clogged dust or water in the fuel filter.
Clogged or bent fuel pipe or hose.
Air is mixed in the fuel system.
Clogged or bent breather tube or pipe.
Damaaed diaphraam of pressure reaulator.
Replace fuel pump.
Replace fuel filter, clean or replace fuel tank.
Clean, correct or replace fuel pipe or hose.
Inspect or retighten each connection part.
Clean, correct or replace air breather tube or pipe.
Replace.
3)
4)
5)
Defective welding part on the fuel tank.
Defective drain packing of the fuel tank.
Clogged or bent air breather tube or air vent tube.
Replace.
Replace.
Clean, correct or replace air breather tube or air vent
tube.
2.Fakacle or blow out fuel
1)
2)
1) 1 I Loosened joints of the fuel pipe. I Retightening.
Defective operation of fuel level sensor.
Defective operation of fuel meter.
Replace.
Replace.
2) I I Cracked fuel pipe, hose and fuel tank. I Replace.
3. Gasoline smell inside of compartment
1 I Loose joints at air breather tube, air vent tube and fuel Retightening, filler Dioe. 1)
I 1 I . I
2) I I Defective Dackina air tiahtness on the fuel saucer. 1 Correct or replace packina.
3) 1- I Cracked fuel separator. I Replace separator.
4) 1 I Inoperative fuel pump modulator or circuit. I Replace.
4. Defective fuel meter indicator
-1 I r I Larae operation noise or vibration of fuel pump. 1 Replace.
~~
NOTE:
When the vehicle is left unattended for an extended period of time, water may accumulate in the
fuel tank.
To prevent water condensation.
(1) Top off the fuel tank or drain the fuel completely.
(2) Drain the water condensation from the fuel
filter.
Refilling the fuel tank.
Refill the fuel tank while there is still some fuel left in
the tank.
Protecting the fuel system against freezing and
water condensation.
(3) Cold areas
In snow-covered areas, mountainous areas, skiing areas, etc. where ambient temperatures
drop below 0°C (32°F) throughout the winter
season, use an anti-freeze solution in the cooling system. Refueling will also complement the
effect of anti-freeze solution each time the fuel
level drops to about one-half. After the winter
season, drain the water which may have accumulated in the fuel filter and fuel tank in the manner same as that described under Affected
areas below.
(4) Affected areas
When the water condensation is notched in the
fuel filter, drain the water from both the fuel filter
and fuel tank or use a water removing agent (or
anti-freeze solution) in the fuel tank.
Observe the instructions, notes, etc., indicated
on the label affixed to the anti-freeze solution (water removing agent) container before use.
FU(D0HC TURBO)-71
FUEL SYSTEM TROUBLE IN GENERAL
FUEL INJECTION (FUEL SYSTEMS)
FU(D0HC TURBO)-72
EMISSION CONTROL
(AUX . EMISSION CONTROL DEVICES) .
m EC(D0HC TURBO) Page
1 .
2 .
3 .
4 .
5 .
6 .
7 .
8 .
9 .
10 .
11 .
12 .
13 .
14 .
15 .
General Description .................................................................................... 2
Front Catalytic Converter ............................................................................ 3
Rear Catalytic Converter ............................................................................. 4
Precatalytic Converter ................................................................................. 5
....................................................................................................... Canister 6
Purge Control Solenoid Valve ..................................................................... 7
Main Fuel Level Sensor .............................................................................. 8
Fuel Temperature Sensor ........................................................................... 9
Fuel Sub Level Sensor .............................................................................. IO
Fuel Tank Pressure Sensor ...................................................................... 11
Pressure Control Solenoid Valve .............................................................. 12
Drain Filter ................................................................................................. 14
Vent Valve ................................................................................................. 15
Shut Valve ................................................................................................. 16
Drain Valve ................................................................................................ 17
GENERAL DESCRIPTION
EMISSION CONTROL (AUX. EMISSION CONTROL DEVICES)
1. General Description
A: CAUTION
Wear working clothing, including a cap, protective goggles, and protective shoes during operation.
Remove contamination including dirt and corrosion before removal, installation or disassembly.
Keep the disassembled parts in order and protect them from dust or dirt.
Before removal, installation or disassembly, be
sure to clarify the failure. Avoid unnecessary removal, installation, disassembly, and replacement.
Be careful not to burn your hands, because each
part on the vehicle is hot after running.
Be sure to tighten fasteners including bolts and
nuts to the specified torque.
Place shop jacks or safety stands at the specified
points.
Before disconnecting electrical connectors of
sensors or units, be sure to disconnect the negative
terminal from battery.
EC(D0HC TURBO)-2
a FRONT CATALYTIC CONVERTER I
EMISSION CONTROL (AUX. EMISSION CONTROL DEVICES)
2. Front Catalytic Converter
A: REMOVAL
1) Remove the center exhaust pipe. EX(D0HC TURBO)-8, REMOVAL, Center Exhaust
Pipe.>
2) Separate the front catalytic converter (A) from
rear catalytic converter (B).
EN099:
B: INSTALLATION
NOTE:
Replace the gaskets with new ones.
Install in the reverse order of removal.
C: INSPECTION
1) Make sure there are no exhaust leaks from connections and welds.
2) Make sure there are no holes or rusting.
EC(D0HC TURBO)-3
I REAR CATALYTIC CONVERTER
EMISSION CONTROL (AUX. EMISSION CONTROL DEVICES)
3. Rear Catalytic Converter
A: REMOVAL
1) Remove the center exhaust pipe. EX(D0HC TURBO)-8, REMOVAL, Center Exhaust
Pipe.>
2) Separate the rear catalytic converter (B) from
front catalytic converter (A).
I EN0993
B: INSTALLATION
NOTE:
Replace the gaskets with new ones.
Install in the reverse order of removal.
C: INSPECTION
1) Make sure there are no exhaust leaks from connections and welds.
2) Make sure there are no holes or rusting.
EC(D0HC TURBO)-4
PRECATALYTIC CONVERTER
EMISSION CONTROL (AUX. EMISSION CONTROL DEVICES)
4. Precatalytic Converter
A: REMOVAL
Precatalytic converter (A) is built in the joint pipe.
Refer to the removal of joint pipe for removal
procedure. MOVAL, Joint Pipe.>
RE-
EN0991
B: INSTALLATION
Precatalytic converter is built in the joint pipe. Refer
to the installation of joint pipe for installation procedure.
C: INSPECTION
1) Make sure there are no exhaust leaks from connections and welds.
2) Make sure there are no holes or rusting.
EC(D0HC TURBO)-5
CANISTER
EMISSION CONTROL (AUX. EMISSION CONTROL DEVICES)
5. Canister C: INSPECTION
A: REMOVAL cracked or loose.
1) Lift-up the vehicle.
2) Loosen the two clamps which hold two canister
hoses, and disconnect the evaporation three hoses
Make sure the canister and canister hoses are not
from canister
I I / S2M0950
3) Remove the canister from body.
B: INSTALLATION
1) Install in the reverse order of removal.
Tightening torque:
23 N.m (2.3 kgf-m, 17 ff-lb)
EC(D0HC TURBO)-6
31 PURGE CONTROL SOLENOID VALVE
EMISSION CONTROL (AUX. EMISSION CONTROL DEVICES)
6. Purge Control Solenoid Valve
A: REMOVAL
1) Disconnect the ground terminal from battery.
2) Disconnect the connector and hoses from purge
control solenoid valve.
3) Remove the bolt which installs the purge control
solenoid valve onto intake manifold.
EN0899
B: INSTALLATION
Install in the reverse order of removal.
Tightening torque:
76 N.m (7.6 kgf-m, 7 7.6 ft-16)
9 EN0899
CAUTION:
Carefully connect the evaporation hoses.
(A) To intake manifold
(B) To purge value
C: INSPECTION
Make sure the hoses are not cracked or loose.
EC(D0HC TURBO)-7
MAIN FUEL LEVEL SENSOR
EMISSION CONTROL (AUX. EMISSION CONTROL DEVICES)
7. Main Fuel Level Sensor
A: REMOVAL
For work procedures, refer to “FU” section. FU(D0HC TURBO)-62, REMOVAL, Fuel Level
Sensor.>
B: INSTALLATION
For work procedures, refer to “FU” section.

Fuel Level Sensor.>
EC(D0HC TURBO)-8
I a
FUEL TEMPERATURE SENSOR
EMISSION CONTROL (AUX. EMISSION CONTROL DEVICES)
8. Fuel Temperature Sensor
A: REMOVAL
FU(D0HC TURBO)-60, REMOVAL, Fuel Pump.>
2) Disconnect the connector from fuel pump bracket.
B: INSTALLATION
Install in the reverse order of removal.
WARNING: '1 Remove the fuel pump 3) Remove the main fuel level sensor from fuel
pump assembly. REMOVAL, Fuel Level Sensor.>
S2M085E
NOTE:
Fuel temperature sensor is a unit with the
pump. If replacing it, replace as a fuel pump.
fuel
EC(D0HC TURBO)-9
la FUEL SUB LEVEL SENSOR
EMISSION CONTROL (AUX. EMISSION CONTROL DEVICES)
9. Fuel Sub Level Sensor
A: REMOVAL
For work procedures, refer to “FU(D0HC TURBO)”
section.
B: INSTALLATION
For work procedures, refer to “FU(D0HC TURBO)’’
section.
EC(D0HC TURBO)-IO
FUEL TANK PRESSURE SENSOR
EMISSION CONTROL (AUX. EMISSION CONTROL DEVICES)
10.Fuel Tank Pressure Sensor
A: REMOVAL
1) Remove the fuel tank.
2) Remove the protector cover.
EN1 0%
3) Disconnect the connector from fuel pressure
sensor, then remove the fixing nut.
4) Release the clips which hold fuel pipes onto fuel
tank.
I Clip EN1 052 I
5) Remove the clip, and disconnect pressure hose
from fuel tank.
6) Disconnect the pressure hose from fuel tank
pressure sensor.
G3 B2M 1779
B: INSTALLATION
Install in the reverse order of removal.
Tightening torque:
7.4 N-m (0.75 kgf-m, 5.4 ft-lb)
C: INSPECTION
Make sure the hoses are not cracked or loose.
EC(D0HC TURBO)-I 1
PRESSURE CONTROL SOLENOID VALVE
EMISSION CONTROL (AUX. EMISSION CONTROL DEVICES)
11 .Pressure Control Solenoid
Valve
A: REMOVAL
1 ) Disconnect the ground terminal from battery.
2) Remove the canister.
3) Disconnect the evaporation hoses (A) from joint
pipes.
4) Remove the bolt which installs pressure control
solenoid valve holding bracket on body.
5 ) Disconnect the connector from pressure control
solenoid valve.
6) Disconnect the two evaporation hoses from
pressure control solenoid valve.
7) Remove the pressure control solenoid valve with
bracket.
8) Remove the pressure control solenoid valve
from bracket .
>
I B2M1786 I
9) Disconnect the vacuum hose from pressure control solenoid valve.
EC(D0HC TURBO)-I 2
PRESSURE CONTROL SOLENOID VALVE
EMISSION CONTROL (AUX. EMISSION CONTROL DEVICES)
B: INSTALLATION
Install in the reverse order of removal.
Tightening torque:
17.6 N.m (1.8 kgf-m, 13.0 R-lb)
C: INSPECTION
Make sure the hoses are not cracked or loose.
EC(D0HC TURBO)-13
DRAIN FILTER
EMISSION CONTROL (AUX. EMISSION CONTROL DEVICES)
12.Drain Filter
A: REMOVAL
1) Disconnect the ground terminal from battery.
2) Lift-up the vehicle.
3) Remove the canister.
4) Disconnect the connector from drain valve.
/
0 H2M3611
5) Disconnector the evaporation hoses (A) from
joint pipes.
6) Remove the bolt which installs the drain filter and
drain valve brackets on body, and remove them as
a unit.
7) Disconnect the evaporation hoses, and remove
the drain filter.
I B2M 1791 C
B: INSTALLATION
Install in the reverse order of removal.
Tightening torque:
23 N-m (2.3 kgf-m, 17 ff-lb)
C: INSPECTION
1) Make sure all hoses are installed correctly.
2) Make sure the hoses are not cracked or loose.
EC(D0HC TURBO)-14
VENT VALVE
EMISSION CONTROL (AUX. EMISSION CONTROL DEVICES)
13.Vent Valve
A: REMOVAL
1) Remove the fuel tank.
2) Remove the protector cover.
I EN1 050 I
3) Remove the clips, and disconnect the hoses
from vent valve.
4) Remove the nuts which install the vent on fuel
tank.
I-
B: INSTALLATION
Install in the reverse order of removal.
CAUTION:
Replace the rubber seat with a new one.
Tightening torque:
T: 4.4 N.m (0.45 kgf-m, 3.3 ft-lb)
C: INSPECTION
Make sure the hoses are not cracked or loose.
EC(D0HC TURBO)-15
SHUT VALVE
EMISSION CONTROL (AUX. EMISSION CONTROL DEVICES)
14.Shut Valve B: INSTALLATION
Install in the reverse order of removal.
Tightening torque:
A: REMOVAL
1) Disconnect the ground terminal from battery. 4.5 N.m (0.46 kgf-m, 3.3 ft-lb)
2) Drain fuel from the fuel tank. TURBO)-52, REMOVAL, Fuel Tank.>
3) Remove the fuel filler pipe. TURBO)-55, REMOVAL, Fuel Filler Pipe.>
4) Disconnect the evaporation hoses from shut
valve.
EN1 057
5) Remove the shut valve from fuel filler pipe.
EN105.5 I I
EN1 I - 5E -
C: INSPECTION
Make sure the hoses are not cracked or loose.
EC(D0HC TURBO)-16
m DRAIN VALVE
EMISSION CONTROL (AUX. EMISSION CONTROL DEVICES)
15.Drain Valve
A: REMOVAL
1) Disconnect the ground terminal from battery.
6) Remove the bolt which installs the drain filter and
drain valve brackets on body, and remove them as
a unit.
2) Lift-up the vehicle.
3) Remove the canister.
4) Disconnect the connector from drain valve.
B:
7) Remove the drain valve from bracket.
/
0 0- H2M3611
5) Disconnect the evaporation hoses from drain
valve.
------- H2M3612AI
INSTALLATION
Install in the reverse order of removal.
Tightening torque:
23 N-m (2.3 kgf-m, 17 ft-16)
EN1055
EN1055
C: INSPECTION
1) Make sure all hoses are installed correctly.
2) Make sure the hoses are not cracked or loose.
EC(D0HC TURBO)-17
DRAIN VALVE
EMISSION CONTROL (AUX. EMISSION CONTROL DEVICES)
EC(D0HC TURBO)-18
INTAKE (INDUCTION)
IN(D0HC TURBO)
Page
1 . General Description .................................................................................... 2
2 . Air Cleaner .................................................................................................. 7
3 . Air Intake Duct ............................................................................................. 8
4 . Intake Duct .................................................................................................. 9
5 . Intercooler ................................................................................................. 10
6 . Turbocharger ............................................................................................. 12
7 . Air By-pass Valve ...................................................................................... 14
GENERAL DESCRIPTION
INTAKE (INDUCTION)
1. General Description
A: COMPONENT
1. AIR CLEANER
EN1 17E
(8) Cushion rubber Tightening torque: N.m (kgf-m, ft-lb)
(9) Air intake duct T1: 7.5 (0.76, 5.5)
(1 0 ) Resonator chamber ASSY T2: 33 (3.4,25)
(1 1) Cushion rubber T3: Z.s(O.25, 1.8)
(12) Clamp T4: 1.7(0.17, 1.2)
(1) Mass air flow sensor
(2) Air cleaner upper cover
(3) Air cleaner element
(4) Spacer
(5) Bush
(6) Clip (13) Air intake boot
(7) Air cleaner lower case (14) Cushion
IN(D0HC TURBO)-2
GENERAL DESCRIPTION
INTAKE (INDUCTION)
2. INTAKE DUCT
EN1 114
(1) Clamp
(2) PCV hose ASSY
(3) Air by-pass hose B
(4) Air by-pass hose C
(5) Air by-pass hose D
(6) Intake duct
(7) Clamp
Tightening torque: N.m (kgf-m, ft-lb)
T l : lS (1 .6 , 11.7)
IN(D0HC TURBO)-3
I
GENERAL DESCRIPTION
INTAKE (INDUCTION)
3. INTERCOOLER
/ .
G L
\
/
EN090,
(1) Intercooler (7) Gasket (13) Clamp
(2) Intercooler bracket RH (8) Clamp
(3) Intercooler bracket LH (9) Air by-pass hose A
(4) Clamp (IO) Intercooler duct A
(5) Air intake duct (1 1) Intercooler duct B
(6) Air by-pass valve (12) Intercooler duct C
Tightening torque: N.m (kgf-m, ft-lb)
T1: 3 (0.22, 1.6)
T2: 16 (1.6, 11.71
IN(D0HC TURBO)-4
INTAKE (INDUCTION)
GENERAL DESCRIPTION
4. TURBOCHARGER
-/ I
& . I-
EN111E
(1) Oil inlet pipe
(2) Metal gasket
(3) Turbocharger
(4) Water pipe
(5) Clamp
(6) Engine coolant hose
(7) Gasket
(8) Oil outlet pipe Tightening torque: N.m (kgf-m, ft-lb)
(9) Clip Tl : 4.4 (0.45, 3.3)
(10) Oil outlet hose T2: 4.9 (0.50, 3.6)
(1 1) Turbocharger bracket RH T3: 29 (3.0, 21.7)
(12) Turbocharger bracket LH T4: 30 (3.1,22.4)
T5: 33 (3.4,24.6)
T6: lS(1.6, 11.7)
IN(D0HC TURBO)-5
GENERAL DESCRIPTION
INTAKE (INDUCTION)
B: CAUTION
Wear working clothing, including a cap, protective goggles, and protective shoes during operation.
Remove contamination including dirt and corrosion before removal, installation or disassembly.
Keep the disassembled parts in order and protect them from dust or dirt.
Before removal, installation or disassembly, be
sure to clarify the failure. Avoid unnecessary removal, installation, disassembly, and replacement.
Be careful not to burn your hands, because each
part on the vehicle is hot after running.
Be sure to tighten fasteners including bolts and
nuts to the specified torque.
Place shop jacks or safety stands at the specified
points.
Before disconnecting electrical connectors of
sensor or units, be sure to disconnect negative terminal from battery.
IN(D0HC TURBO)-6
AIR CLEANER
INTAKE (INDUCTION)
2. Air Cleaner
A: REMOVAL
1) Disconnect the ground terminal from battery.
2) Disconnect the connector from mass air flow
sensor.
I
3) Loosen the clamp (A) which connects air intake
boot to intake duct.
4) Remove the two clips (B) from air cleaner upper
cover.
5) Remove the air cleaner upper cover.
6) Remove the air cleaner element.
7) Remove the air cleaner lower case.
B: INSTALLATION
Install in the reverse order of removal.
Tightening torque:
33 N.m (3.4 kgf-m, 25 ft-lb)
CAUTION:
Before installing the air cleaner upper cover,
align holes with protruding portions of air
cleaner lower case, then secure the upper cover to lower case.
C: INSPECTION
Replace if excessively damaged or dirty.
IN(D0HC TURBO)-7
AIR INTAKE DUCT
INTAKE (INDUCTION)
3. Air Intake Duct
A: REMOVAL
1) Remove the bolts which install air intake duct on
the front side of body.
B: INSTALLATION
Install in the reverse order of removal.
C: INSPECTION
1) Inspect for cracks and loose connections.
2) Inspect that no foreign objects are mixed in the
air intake duct.
IN(D0HC TURBO)-8
INTAKE (INDUCTION)
INTAKE DUCT
4. Intake Duct
A: REMOVAL
1) Disconnect the ground terminal from battery.
2) Remove the intake manifold. TURBO)-1 5, REMOVAL, Intake Manifold.>
3) Remove the sensor, engine harness, and fuel
pipe attached to the intake manifold. FU(D0HC TURBO)-21, DISASSEMBLY, Intake
Manifold.>
4) Remove the intake duct from intake manifold.
E N I l l !
B: INSTALLATION
Install in the reverse order of removal.
IN(D0HC TURBO)-9
I
INTAKE (INDUCTION)
INTERCOOLER
5. Intercooler
A: REMOVAL
1) Disconnect the air by-pass hoses from intercooler.
2) Separate the air by-pass valve from intercooler.
3) Remove the bolts which secure intercooler to
bracket.
4) Separate the intercooler air duct from turbocharger.
5) Separate the intercooler from throttle body.
IN(D0HC TURBO)-1 0
INTAKE (IN DUCTION)
INTERCOOLER
B: INSTALLATION
Install in the reverse order of removal.
Tightening torque:
16 N-m (1.6 kgf-m, 11.7 ff-lb)
C: DISASSEMBLY
1) Loosen the clamps, then remove intercooler
duct.
MI884
2) Remove the intercooler ducts from intercooler.
r 'M 1
D: ASSEMBLY
Assemble in the reverse order of disassembly.
Tightening torque:
16 N-m (1.6 kgf-m, 11.7 ff-lb)
IN(D0HC TUR 30)-I 1
TURBOCHARGER
INTAKE (INDUCTION)
6. Turbocharger
A: REMOVAL
1) Set the vehicle on the lift.
2) Disconnect the ground terminal from battery.
3) Remove the center exhaust pipe. EX(D0HC TURBO)-8, REMOVAL, Center Exhaust
Pipe.>
4) Lower the vehicle.
5) Separate the turbocharger joint pipe from turbocharger.
6) Disconnect the engine coolant hose which is
connected to coolant filler tank.
7) Loosen the clamp which secures turbocharger to
air inlet duct.
8) Remove the bolt which secures bracket of oil
pipe to turbocharger.
9) Remove the oil pipe from turbocharger.
3
10) Remove the turbocharger bracket.
11) Disconnect the oil outlet hose from pipe.
12) Take out the turbocharger from engine compartment.
IN(D0HC TURBO)-12
INTAKE (INDUCTION)
TURBOCHARGER
B: INSTALLATION
1) Connect the oil outlet hose to outlet pipe.
2) Install the turbocharger to air intake duct.
3) Install the oil pipe to turbocharger
/ I I /ENOW:
4) Install the joint pipe to turbocharger.
NOTE:
Replace the gasket with a new one.
Tightening torque:
30 N.m (3.1 kgf-m, 22.4 ft-lb)
I EN0911
5 ) Install the turbocharger bracket.
6) Connect the engine coolant hose which is connected to coolant filler tank.
I .
7) Lift-up the vehicle.
8) Install the center exhaust pipe. EX(D0HC TURBO)-9, INSTALLATION, Center
Exhaust Pipe.>
IN(D0HC TURBO)-I 3
AIR BY-PASS VALVE
INTAKE (INDUCTION)
7. Air By-pass Valve
A: REMOVAL
1) Remove the air by-pass valve from intercooler.
B: INSTALLATION
Install in the reverse order of removal.
Tightening torque:
76 N*m (7.6 kgf-m, 7 7.7 fi-lb)
2) Disconnect the air by-pass hoses from air bypass valve.
IN(D0HC TURBO)-14
MECHANICAL
ME(D0HC TURBO)
1 .
2 .
3 .
4 .
5 .
6 .
7 .
8 .
9 .
10 .
11 .
12 .
13 .
14 .
15 .
16 .
17 .
18 .
19 .
20 .
21 .
22 .
General Description .................................................................................... 2
Idle Speed ................................................................................................. 23
Engine Oil Pressure .................................................................................. 26
Fuel Pressure ............................................................................................ 27
Engine Mounting ....................................................................................... 42
Crankshaft Pulley ...................................................................................... 46
Camshaft Sprocket .................................................................................... 57
Cranks haft Sprocket .................................................................................. 58
Camshaft ................................................................................................... 59
Engine Trouble in General ........................................................................ 91
............................................................................................. Compression 22
Ignition Timing ........................................................................................... 24
Intake Manifold Vacuum ............................................................................ 25
........................................................................................ Valve Clearance 28
Engine Assembly ...................................................................................... 33
Preparation for Overhaul ........................................................................... 43
V-belt 44
Belt Cover ................................................................................................. 47
Timing Belt Assembly ................................................................................ 48
.........................................................................................................
Cylinder Head Assembly ........................................................................... 64
Cylinder Block 72
96
...........................................................................................
Engine Noise .............................................................................................
GENERAL DESCRIPTION
MECHANICAL
Type
1. General Description
A: SPECIFICATIONS
Horizontally opposed, liquid cooled, 4-cylinder,
4-stroke aasoline enaine
Engine
Compression ratio
Compression presrPm)
sure (at 200 - 300 kPa (kgf/cm2, psi)
Number of piston rings
8.0
981 - 1,177 (10- 12, 142- 171)
Pressure ring: 2, Oil ring: 1
Valve arrangement I Belt driven, double overhead camshaft, 4-valve/cvlinder
Opening
Closing
Opening
Closing
intake valve timing
Exhaust valve timing
Bore x Stroke mm (in) I 92 x 75 (3.62 x 2.95)
10" BTDC
50" ABDC
53" BBDC
7" ATDC
Piston displacement cm3 (cu inI 1.994 (1 21.67)
Firing order
Ignition timing BTDC/rpm
1 + 3 + 2 3 4
12"k3"/750 rpm
Intake mm (in) I 0.20f0.02 (0.0079kO. 0008)
Exhaust mm (in) I 0.25+0.02 (0.0098kO ,0008) Valve clearance
750k100 (No load)
800k150 (NC switch ON)
750k100 (No load)
825k150 (NC switch ON)
MT
AT
Idling speed [At neutral position] r Pm
ME(D0HC TURBO)-2
GENERAL DESCRIPTION
MECHANICAL
Protrusion of adjuster rod
NOTE:
STD: Standard I.D.: Inner Diameter O.D.: Outer Diameter OS: Oversize US: Undersize
5.2 - 6.2 mm (0.205 - 0.244 in)
%It ten;ion
idjuster
Spacer O.D.
Tensioner bush I.D.
Clearance between spacer and bush
STD
Limit
3elt tenjioner
17.955 - 17.975 mm (0.7069 - 0.7077 in)
18.0 - 18.08 mm (0.7087 - 0.71 18 in)
0.025 - 0.125 mm (0.0010 - 0.0049 in)
0.1 75 mm (0.0069 in)
Camshaft
STD
Limit
I STD
Side clearance of spacer
Bend limit
Cylinder
head
0.2 - 0.55 mm (0.0079 - 0.0217 in)
0.81 mm (0.031 9 in)
0.020 mm (0.0079 in)
0.01 5 - 0.070 mm (0.0006 - 0.0028 in)
Valve seat
I STD
Valve guide
46.25 - 46.35 mm (1.821 - 1.825 in)
Valve
STD
Limit
Front
Center
rear
Exhaust
STD
Valve
spring
46.1 5 - 46.25 mm (1.81 7 - 1.821 in)
46.05 mm (1.813 in)
37.946 - 37.963 mm (1.4939 - 1.4946 in)
29.946-29.963" (1.1790-1.1796 in)
I STD 0.037 - 0.072 mm (0.0015 - 0.0028 in)
I Limit
Surface warpage limit
0.10 mm (0.0039 in)
0.05 mm (0.0020 in)
Thrust clearance
Surface grinding limit
Standard height
Refacing angle
STD
Intake Limit
STD
Exhaust
Limit
Contacting width
Inner diameter
Protrusion above head
. . I STD
Cam lobe height
0.3 mm (0.01 2 in)
127.5 mm (5.02 in)
90"
1 .O mm (0.039 in)
I .7 mm (0.067 in)
1.5 mm (0.059 in)
2.2 mm (0.087 in)
6.000 - 6.012 mm (0.2362 - 0.2367 in)
12.0 - 12.4 mm (0.472 - 0.488 in)
1.2 mm (0.047 in)
Jounal O.D.
Intake
Exhaust
Limit
STD
Limit
Head edge thickness
Oil clearance
0.8 mm (0.031 in)
1.5 mm (0.059 in)
0.8 mm (0.031 in)
I Intake
I
46.15 mm (1.817 in)
Intake I Limit
5.950 - 5.965 mm (0.2343 - 0.2348 in)
STD
Limit
Stem oil clearance
Overall length
Intake
Exhaust
-
Intake
Exhaust
0.035 - 0.062 mm (0.0014 - 0.0024 in)
0.040 - 0.067 mm (0.0016 - 0.0026 in)
0.1 5 mm (0.0059 in)
104.4 mm (4.1 10 in)
104.7 mm (4.122 in)
Free length
Squareness
Tensionlspring height
44.67 mm (1.7587 in)
2.5", 2.0 mm (0.079 in)
220.7k15.7 N (22.5k1.6 kgf, 49.6f3.5 lb)/36.0 mm (1.417 in)
510.9k25.5 N (52.1k2.6 kgf, 114.9k5.7 lb)/26.6 mm (1.0.47 in
Stem diameter I I Exhaust I 5.945 - 5.960 "(0.2341 - 0.2346 in)
ME(D0HC TURBO)-3
Cylinder bore
A
B
92.005 - 92.015 mm (3.6222 - 3.6226 in)
91.995 - 92.005 mm (3.621 8 - 3.6222 in)
STD
I
STD
Limit
Taper
0.015 mm (0.0006 in)
0.050 mm (0.0020 in)
STD 0.010 mm (0.0004 in)
Limit 0.050 mm (0.0020 in)
STD 0.01 0 - 0.030 mm (0.0004 - 0.001 2 in)
Limit 0.050 mm (0.0020 in)
Enlaraina (borina) limit 0.5 mm (0.020 in)
Standard clearance between piston
pin and hole in piston
STD
Limit 0.020 mm (0.0008 in)
0.004 - 0.008 mm (0.0002 - 0.0003 in)
STD 0.20 - 0.35 mm (0.0079 - 0.01 38 in)
Limit
STD
Limit
1 .O mm (0.039 in)
0.20 - 0.70 mm (0.0079 - 0.0276 in)
1.5 mm (0.059 in)
Limit
STD
Limit
STD
0.03 mm
(0.0012
in) US
0.4 mm (0.01 6 in)
0.020 - 0.046 mm (0.0008 - 0.0018 in)
0.05 mm (0.0020 in)
1.492 - 1.501 mm (0.0587 - 0.0591 in)
1.510 - 1.51 3 mm (0.0594 - 0.0596 in)
0.25 mm
(0.0098
in) US
STD
1.620 - 1.623 mm (0.0638 - 0.0639 in)
0 - 0.022 mm (0 - 0.0009 in)
GENERAL DESCRIPTION
MECHANICAL
Surface warpage limit (mating with cylinder head) I 0.05 mm (0.0020 in)
Surface grinding limit I 0.1 mm (0.004 in)
Cylinder
block
Out-of-roundness
STD
I A I 91.985 - 91.995 mm (3.6214 - 3.6218 in)
I B I 91.975 - 91.985 mm (3.621 1 - 3.6214 in)
0.25 mm (0.0098 in)
os 92.225 - 92.235 mm (3.6309 - 3.6313 in) Piston Outer diameter
92.475 - 92.485 mm (3.6407 - 3.641 1 in) 0.50 mm (0.01 97 in) os
Piston pin
Degree of fit
Top ring
Limit I 1 .O mm (0.039 in)
Second
ring
STD I 0.35 - 0.50 mm (0.01 38 - 0.01 97 in)
Piston ring gap
Oil ring Piston ring
Top ring
STD 1 0.040 - 0.080 mm (0.001 6 - 0.0031 in)
Clearance between piston
ring and piston ring
groove
Bend twist per 100 mm (3.
lenath
Limit I 0.15 mm (0.0059 in)
STD I 0.030 - 0.070 mm (0.0012 - 0.0028 in) Second
ring
4 in) in
Limit I 0.15 mm (0.0059 in)
Limit I 0.10 mm (0.0039 in)
Connecting
rod
Side clearance
0.070 - 0.330 mm (0.0028 - 0.0130 in) STD I
Oil clearance
Connecting
rod bearing 0.05 mm
(0.0020
in) US
Thickness at center portion
1.520 - 1.523 mm (0.0598 - 0.0600 in)
Connecting
rod bushing
Clearance between piston pin and
bushing Limit I 0.030 mm (0.001 2 in)
ME(D0HC TURBO)-4
GENERAL DESCRIPTION
lend limit
:rank pin and crank jour- Out-of-ro~ndness
tal Grinding limit
MECHANICAL
0.035 mm (0.001 4 in)
0.020 mm (0.0008 in) or less
0.25 mm (0.0098 in)
:ranks haft
n) US
3.25 mm
(0.0098
Crankshaft
bearing
59.742 - 59.758 mm (2.3520 - 2.3527 in)
in) US
STD
0.001 2 47.954 - 47.970 mm (1.8879 - 1.8886)
59.992 - 60.008 mm (2.361 9 - 2.3625 in)
;rank pin outer diameter
0.03 mm
(0.001 2
in) US
0.05 mm
(0.0020
:rank journal outer diamBter
59.962 - 59.978 mm (2.3607 - 2.3613 in)
59.942 - 59.958 mm (2.3599 - 2.3605 in)
~
Thrust clearance
in) US
STD
Limit
STD
Limit
STD
#1, #3, #5
0.030 - 0.1 15 mm (0.001 2 - 0.0045 in)
0.25 mm (0.0098 in)
0.01 0 - 0.030 mm (0.0004 - 0.001 2 in)
1.998 - 2.01 1 mm (0.0787 - 0.0792 in)
#2. #4
0.03 mm
(0.0012
in) US
0.05 mm
(0.0020
Oil clearance
2.017 - 2.020 mm (0.0794 - 0.0795 in)
2.027 - 2.030 mm (0.0798 - 0.0799 in)
Crankshaft bearing thickness
in) US
STD
#l. #3
2.000 - 2.013 mm (0.0787 - 0.0793 in)
#2, #4, #5
~
0.03 mm
(0.001 2
in) US
0.05 mm
(0.0020
0.0020 I
2.019 - 2.022 mm (0.0795 - 0.0796 in)
2.029 - 2.032 mm (0.0799 - 0.0800 in)
47.934 - 47.950 mm (1.8872 - 1.8878)
1.25 mm
0.0098 47.734 - 47.750 mm (1.8793 - 1.8799)
lo3 :0.0012 mm 1 59.962 - 59.978 mm (2.3607 - 2.3613 in)
:0.0020 mm 1 59.942 - 59.958 mm (2.3599 - 2.3605 in)
0'25 (0.0098 mm I 59.742 - 59.758 mm (2.3520 - 2.3527 in)
0.040 mm (0.001 6 in)
(0.0098
0.25mm I 2.127 - 2.130 mm (0.0837 - 0.0839 in)
0.25mm (0.0098 I 2.129 - 2.132 mm (0.0838 - 0.0839 in)
ME(D0HC TURBO)-5
GENERAL DESCRIPTION
MECHANICAL
B: COMPONENT
1. TIMING BELT
EN1136
(1) Right-hand belt cover No. 2 (9) Right-hand intake camshaft (17) Right-hand belt cover
(2) Timing belt guide (MT vehicles sprocket (18) Crankshaft pulley
only) (IO) Left-hand intake camshaft . .
(3) Crankshaft sprocket
(4) Left-hand belt cover No. 2
(5) Tensioner bracket
(6) Automatic belt tension adjuster
(7) Belt idler
(8) Right-hand exhaust camshaft
sprocket
ASSY
sprocket
(1 1) Left-hand exhaust camshaft
sprocket
(12) Timing belt
(13) Belt idler No. 2
(14) Belt idler
(1 5) Left-hand belt cover
(16) Front belt cover
Tightening torque: N.m (kgf-m, ff-lb)
T l : 5 (0.5, 3.6)
T2: l O ( 1 . 0 , 7)
T3: 25 (2.5, 18.1)
T4: 39 (4.0, 28.9)
T5: 98 (10, 72.4)
T6: INSTAL LA TION, Crankshaft
Pullev.>
ME(D0HC TURBO)-6
GENERAL DESCRIPTION
MECHANICAL
ME(D0HC TURBO)-7
GENERAL DESCRIPTION
MECHANICAL
2. CYLINDER HEAD AND CAMSHAFT
S2M1188A
ME(D0HC TURBO)-8
GENERAL DESCRIPTION
MECHANICAL
Rocker cover (RH)
Rocker cover gasket (RH)
Oil separator cover
Gasket
Intake camshaft cap (Front RH)
Intake camshaft cap (Center RH)
Intake camshaft cap (Rear RH)
Intake camshaft (RH)
Exhaust camshaft cap (Front RH)
Exhaust camshaft cap (Center
RH)
Exhaust camshaft cap (Rear RH)
Exhaust camshaft (RH)
Cylinder head bolt
Oil seal
Cylinder head (RH)
Cylinder head gasket (RH)
Cylinder head gasket (LH)
Cylinder head (LH)
Intake camshaft (LH)
Exhaust camshaft (LH)
Intake camshaft cap (Front LH)
Intake camshaft cap (Center LH)
Intake camshaft cap (Rear LH)
Exhaust camshaft (Front LH)
(29) Oil filler cap
(30) Gasket
(31) Oil filler duct
(32) O-ring
(33) Stud bolt
Tightening torque: N.m (kgf-m, ft-lb)
Tl: INSTALLATION, Cylinder Head
Assembly>
(25) Exhaust camshaft cap (Center T2: 5 (0.5, 3.6)
LH) T3: 10 (1.0, 7)
(26) Exhaust camshaft cap (Rear LH) T4: 6.4 (0.65, 4.7)
(27) Rocker cover gasket (LH)
(28) Rocker cover (LH)
ME(D0HC TURBO)-9
I
MECHANICAL
GENERAL DESCRIPTION
3. CYLINDER HEAD AND VALVE ASSEMBLY
(1 o i
S2M1197A
(1) Exhaust valve
(2) Intake valve
(3) Cylinder head
(4) Valve spring seat
(5) Intake valve oil seal
(6) Valve spring
(7) Retainer
(8) Retainer key
(9) Valve lifter
(IO) Shim
(1 1 )
(1 2) Intake valve guide
(1 3) Exhaust valve guide
Exhaust valve oil seal
ME(D0HC TURBO)-IO
GENERAL DESCRIPTION
I
MECHANICAL
4. CYLINDER BLOCK
EN0144
Oil pressure switch
Cylinder block (RH)
Service hole plug
Gasket
Oil separator cover
Water by-pass pipe
Oil pump
Front oil seal
Rear oil seal
O-ring
Service hole cover
Cylinder block (LH)
Water pump
Baffle plate
Oil cooler
Waster by-pass pipe
Connector
Oil strainer
Gasket
Oil pan
Drain plug
Metal gasket
Oil level gauge guide
Oil filter
Gasket
Water pump hose
Plug
Tightening torque: N.m (kgf-m, ft-lb)
T1: 5 (0.5, 3.6)
T2: 6.4 (0.65, 4.7)
T3: lO(1.0, 7)
T4: 25 (2.5, 18.1)
T5: 47 (4.8, 34.7)
T6: 69 (7.0, 50.6)
T7: First 12 (1.2, 8.7)
T8: 16 (1.6, 11.6)
T9r 44 (4.5, 33)
TlO: 25 (2.5, 18.1)
T11: 55 (5.5, 40)
Second 12 (1.2, 8.7)
ME(D0HC TURBO)-I 1
GENERAL DESCRIPTION
MECHANICAL
5. CRANKSHAFT AND PISTON
EN0415
(1) Flywheel (MT vehicles only) (9) Piston pin (1 7) Crankshaft bearing #I , #3
(2) Ball bearing (MT vehicles only) (IO) Circlip (1 8) Crankshaft bearing #2, #4
(3) Reinforcement (AT vehicles only) (1 1) Connecting rod bolt (1 9) Crankshaft bearing #5
(4) Drive plate (AT vehicles only) (12) Connecting rod
(5) Top ring (13) Connecting rod bearing Tightening torque: N.m (kgf-m, I?-lb)
(6) Second ring
(7) Oil ring
(8) Piston
(14) Connecting rod cap T1: 44.6 (4.55, 32.9)
(15) Crankshaft T2: 72 (7.3, 52.8)
(16) Woodruff key
ME(D0HC TURBO)-12
GENERAL DESCRIPTION
MECHANICAL
6. ENGINE MOUNTING
\
Q
S2M1783A
(1) Hear shield cover
(2) Front cushion rubber
(3) Front engine mounting bracket Tightening torque: N.m (kgf-my ft-lb)
T1: 35 (3.6,25.8)
T2: 42 (4.3, 30.9)
T3: 85 (8.7, 62.7)
ME(D0HC TURBO)-13
GENERAL DESCRIPTION
MECHANICAL
C: CAUTION
Wear working clothing, including a cap, protective goggles, and protective shoes during operation.
Remove contamination including dirt and corrosion before removal, installation or disassembly.
Keep the disassembled parts in order and protect them from dust or dirt.
Before removal, installation or disassembly, be
sure to clarify the failure. Avoid unnecessary removal, installation, disassembly, and replacement.
Be careful not to burn your hands, because each
part in the vehicle is hot after running.
Be sure to tighten fasteners including bolts and
nuts to the specified torque.
Place shop jacks or safety stands at the specified
points.
Before disconnecting electrical connectors of
sensors or units, be sure to disconnect the negative
terminal from battery.
All parts should be thoroughly cleaned, paying
special attention to the engine oil passages, pistons and bearings.
Rotating parts and sliding parts such as piston,
bearing and gear should be coated with oil prior to
assembly.
Be careful not to let oil, grease or coolant contact
the timing belt, clutch disc and flywheel.
All removed parts, if to be reused, should be reinstalled in the original positions and directions.
Bolts, nuts and washers should be replaced with
new ones as required.
Even if necessary inspections have been made
in advance, proceed with assembly work while
making rechecks.
Remove or install the engine in an area where
chain hoists, lifting devices, etc. are available for
ready use.
Be sure not to damage coated surfaces of body
panels with tools or stain seats and windows with
coolant or oil. Place a cover over fenders, as required, for protection.
Prior to starting work, prepare the following:
Service tools, clean cloth, containers to catch coolant and oil, wire ropes, chain hoist, transmission
jacks, etc.
Lift-up or lower the vehicle when necessary.
Make sure to support the correct positions.
D: PREPARATION TOOL
1. SPECIAL TOOLS
ILLUSTRATION
EN0147
82M3851
TOOL NUMBER
498267600
498457000
DESCRIPTION
CYLINDER
HEAD TABLE
ENGINE STAND
ADAPTER RH
REMARKS
Used for replacing valve guides.
Used for removing and installing valve springs.
Used with ENGINE STAND (499817000).
ME(D0HC TURBO)-14
GENERAL DESCRIPTION
MECHANICAL
ILLUSTRATION
02M3853
02M3855
TOOL NUMBER
4984571 00
4984971 00
398744300
(Newly adopted
tool)
4988571 00
DESCRIPTION
ENGINE STAND
ADAPTER LH
CRANKSHAFT
STOPPER
PISTON GUIDE
VALVE OIL SEAL
GUIDE
REMARKS
Used with ENGINE STAND (499817000).
Used for stopping rotation of flywheel when loosening and tightening crankshaft pulley bolt, etc.
Used for installing piston in cylinder for 2000 cc
engine.
Used for press-fitting of intake and exhaust valve
guide oil seals.
ME(D0HC TURBO)-15
GENERAL DESCRIPTION
MECHANICAL
ILLUSTRATION
B2M3856
B2M3857
B2M3858
B2M4158
TOOL NUMBER
49901 71 00
4990371 00
499097700
499207400
(Newly adopted
tool)
DESCRIPTION
PISTON PIN
GUIDE
CONNECTING
ROD BUSHING
REMOVER &
INSTALLER
PISTON PIN
REMOVER
ASSY
CAMSHAFT
SPROCKET
WRENCH
RE MARKS
Used for installing piston pin, piston and connecting rod.
Used for removing and installing connecting rod
bushing.
Used for removing piston pin.
Used for removing and installing camshaft
sprocket.
ME(D0HC TURBO)-16
GENERAL DESCRIPTION
MECHANICAL
ILLUSTRATION
B2M3861
82M3863
B2M3864
TOOL NUMBER
499587700
(Newly adopted
tool)
499587200
4995971 00
49971 8000
DESCRIPTION
CAMSHAFT OIL
SEAL
INSTALLER
CRANKSHAFT
OIL SEAL
INSTALLER
CRANKSHAFT
OIL SEAL GUIDE
VALVE SPRING
REMOVER
REMARKS
Used for installing cylinder head plug for DOHC
engine.
Used for installing crankshaft oil seal.
Used with CRANKSHAFT OIL SEAL GUIDE
(4995971 00).
m Used for installing crankshaft oil seal.
m Used with CRANKSHAFT OIL SEAL
INSTALLER (499587200).
Used for removing and installing valve spring.
ME(D0HC TURBO)-17
GENERAL DESCRIPTION
MECHANICAL
IALVE GUIDE
(DJUSTER
I ILLUSTRATION
Used for installing intake and exhaust valve
guides.
I B2M3865
B2M386t t
I B2M386!
r o o L NUMBER
498267700
499767200
499767400
49981 7000
DESCRIPTION I REMARKS
JALVE GUIDE
3EMOVER
TALVE GUIDE
3EAMER
ENGINE STAND
Jsed for removing valve guides.
Jsed for reaming valve guides.
~~
Stand used for engine disassembly and assembly.
@ Used with ENGINE STAND ADAPTER RH
(498457000) & LH (4984571 00).
ME(D0HC TURBO)-18
GENERAL DESCRIPTION
MECHANICAL
ILLUSTRATION
B2M4157
B2M3871
B2M3872
TOOL NUMBER
499977300
499987500
498547000
4995871 00
DESCRIPTION
CRANK PULLEY
WRENCH
CRANKSHAFT
SOCKET
OIL FILTER
WRENCH
OIL SEAL
I NSTALLE R
REMARKS
~~ ~
Used for stopping rotation of crankshaft pulley
when loosening and tightening crankshaft pulley
301tS.
Used for rotating crankshaft.
Used for removing and installing oil filter.
Used for installing oil pump oil seal.
ME(D0HC TURBO)-19
GENERAL DESCRIPTION
MECHANICAL
DESCRIPTION
OIL SEAL GUIDE
ILLUSTRATION
SlH0136
TOOL NUMBER
499587600
(Newly adopted
EN0168
ENOI6E
tool)
499597200
(Newly adopted
tool)
4981 87200
(Newly adopted
tool)
~
498277200
I I L SEAL GUIDE
SHIM
3 E PLAC E R
STOPPER SET
REMARKS
k e d for installing camshaft oil seal for DOHC
'ngine.
Used for installing camshaft oil seal for DOHC
Used with OIL SEAL GUIDE (499587600).
mgine.
Jsed for correct valve clearance.
Used for installing automatic transmission assembly to engine.
ME(D0HC TURBO)-20
GENERAL DESCRIPTION
MECHANICAL
TOOL NAME
Compression Gauge
Timing Light
ILLUSTRATION
REMARKS
Used for measuring compression.
Used for measuring ignition timing.
02M3076
TOOL NUMBER
24082AA150
22771 AA030
2. GENERAL PURPOSE TOOLS
DESCRIPTION
CARTRIDGE
SELECT MONI-
TOR KIT
REMARKS
Troubleshooting for electrical systems.
Troubleshooting for electrical systems.
m English: 22771AA030 (Without printer)
* German: 22771AA070 (Without printer)
m French: 22771AA080 (Without printer)
m Spanish: 22771 AA090 (Without printer)
ME(D0HC TURBO)-21
COMPRESSION
MECHANICAL
2. Compression
A: INSPECTION
CAUTION:
After warming-up, engine becomes very hot. Be
careful not to burn yourself during measurement.
1) After warming-up the engine, turn the ignition
switch to OFF.
2) Make sure that the battery is fully charged.
3) Release fuel pressure. 4) Remove all the spark plugs. TURBO)-4, REMOVAL, Spark Plug.>
5) Fully open the throttle valve.
6) Check the starter motor for satisfactory performance and operation.
7) Hold the compression gauge tight against the
spark plug hole.
CAUTION:
When using a screw-in type compression
gauge, the screw (put into cylinder head spark
plug hole) should be less than 18 mm (0.71 in)
long.
8) Crank the engine by means of the starter motor,
and read the maximum value on the gauge when
the pointer is steady.
BO)-51, RELEASING OF FUEL PRESSURE, OP-
9) Perform at least two measurements per cylinder,
and make sure that the values are correct.
Compression (350 rpm and fully open throttle):
Standard;
951- 1,147kPa(9.7- 11.7kgf/cn?, 138166 psi)
Limit;
834 kPa (8.5 kgf/cd, 121 psi)
Difference between c linders;
49 kPa (0.5 k g f / c d 7 psi)
ME(D0HC TURBO)-22
IDLE SPEED
MECHANICAL
3. Idle Speed
A: INSPECTION
1) Before checking the idle speed, check the following:
(1) Ensure the air cleaner element is free from
clogging, ignition timing is correct, spark plugs
are in good condition, and that hoses are connected properly.
(2) Ensure the malfunction indicator light
(CHECK ENGINE light) does not illuminate.
2) Warm-up the engine.
3) Stop the engine, and turn the ignition switch to
OFF.
4) Insert the cartridge to the SUBARU SELECT
MONITOR.
5) Connect the SUBARU SELECT MONITOR to
the data link connector.
6) Turn the ignition switch to ON, and SUBARU SELECT MONITOR switch to ON.
7) Select (2. Each System Check} in Main Menu.
8) Select {Engine Control System} in Selection
Menu.
9) Select (1. Current Data Display & Save} in Engine Control System Diagnosis.
IO) Select (1.12 Data Display} in Data Display
Menu.
11) Start the engine, and read engine idle speed.
12) Check the idle speed when unloaded. (With
headlights, heater fan, rear defroster, radiator fan,
air conditioning, etc. OFF)
Idle speed (No load and gears in neutral:
13) Check the idle speed when loaded. (Turn the
air conditioning switch to “ON” and operate the
compressor for at least one minute before measurement.)
Idle speed [A/C “ON”, no load and gears in neutral]:
75021 00 rpm
8002150 rpm (MT model)
8252150 rpm (AT model)
CAUTION:
Never rotate the idle adjusting screw. If the idle
speed is out of specifications, refer to General
On-board Diagnosis Table under “Engine Control System”.
ME(D0HC TU RB0)-23
zz1
IGNITION TIMING
MECHANICAL
4. lgnition Timing
A: INSPECTION
1) Before checking the ignition timing speed, check
the following:
(1) Ensure the air cleaner element is free from
clogging, spark plugs are in good condition, and
that hoses are connected properly.
(2) Ensure the malfunction indicator light
(CHECK ENGINE light) does not illuminate.
2) Warm-up the engine.
3) Stop the engine, and turn the ignition switch to
OFF.
4) Insert the cartridge to the SUBARU SELECT
M ON IT0 R.
5 ) Connect the SUBARU SELECT MONITOR to
the data link connector.
6) Turn the ignition switch to ON, and SUBARU SELECT MONITOR switch to ON.
7) Select (2. Each System Check} in Main Menu.
8) Select {Engine Control System} in Selection
Menu.
9) Select (1. Current Data Display & Save} in Engine Control System Diagnosis.
10) Select (1.12 Data Display} in Data Display
Menu.
11) Start the engine, at idle speed and check the ignition timing.
lgnition timing [BTDC/rpm]:
If the timing is not correct, check the ignition control
system. Refer to Engine Control System. EN(D0HC TURBO)-2, Basic Diagnostic Procedure.>
12"23"/750
ME(D0HC TURBO)-24
INTAKE MANIFOLD VACUUM
MECHANICAL
Vacuum gauge indication
1. Needle is steady but lower than normal position. This tendencv becomes more evident as enaine temperature rises.
5. Intake Manifold Vacuum
Possible engine condition
Leakage around intake manifold gasket or disconnection or
damaaed vacuum hose
A: INSPECTION
1) Warm-uD the enuine.
6. Needle vibrates above and below normal position in narrow
range.
3) Keep the engine at the idle speed and read the
vacuum gauge indication.
By observing the gauge needle movement, the internal condition of the engine can be diagnosed as
Defective ignition system or throttle chamber idle adjustment
2) Disconnect the bake vacuum hose and install described below.
Vacuum pressure (at idling, A/C “OFF):
Less than -60.0 kPa (-450 mmHg, -1 7.72 inI Diagnosis of engine condition by measurement of manifold vacuum
~
2. When engine speed is reduced slowly from higher speed,
needle stops temporarily when it is lowering or becomes
steady above normal position.
3. Needle intermittently drops to position lower than normal
position.
Back pressure too high, or exhaust system clogged
Leakage around cylinder
4. Needle drops suddenly and intermittently from normal posivibrate rapidly at certain speed, and then vibration increases as
enaine speed increases.
Sticky valves
Weak or broken valve springs
ME(D0HC TURBO)-25
ENGINE OIL PRESSURE
MECHANICAL
6. Engine Oil Pressure
A: INSPECTION
5) After measuring the oil pressure, install the oil
pressure switch. Oil Pressure Switch.>
1) Remove the oil pressure switch from engine cylinder block.
Tightening torque:
25 N.m (2.5 kgf-m, 18. I W b )
2) Connect the oil pressure gauge hose to cylinder
block.
3) Connect the battery ground terminal to battery.
4) Start the engine, and measure oil pressure.
Oil pressure:
98 kPa (1.0 kg/cd, 14 psi) or more at 800 rpm
294 kPa (3.0 ks /cd, 43 psi) or more at 5,000
rpm
CAUTION:
If the oil pressure is out of specification,
check oil pump, oil filter and lubrication line.

If the oil pressure warning light is turned ON
and oil pressure is in specification, replace the
oil pressure switch. General.>
NOTE:
The specified data is based on an engine oil temperature of 80°C (1 76°F).
ME(D0HC TURBO)-26
MECHANICAL
FUEL PRESSURE
7. Fuel Pressure
A: INSPECTION
WARNING:
Before removing the fuel pressure gauge, release the fuel pressure.
NOTE:
If out of specification, check or replace the pressure
regulator and pressure regulator vacuum hose.
1) Release the fuel pressure. 0 P E RATION, Fuel. >
2) Open the fuel flap lid, and remove the fuel filler
cap.
TURBO)-51, RELEASING OF FUEL PRESSURE,
3) Disconnect the fuel delivery hoses from fuel filter, and connect the fuel pressure gauge.
4) Connect the connector of fuel pump relay.
44
I
5) Start the engine.
6) Measure fuel pressure while disconnecting the
pressure regulator vacuum hose from intake manifold.
Fuel pressure:
Standard; 284 - 314 kPa (2.9 - 3.2 kgf/cd,
41 - 46 psi)
7) Iter connecting the pressure regulator vacuum
hose, measure fuel pressure.
Fuel pressure:
Standard; 230 - 260 kPa (2.35 - 2.65 kgf/
cm’, 33 - 38 psi)
I
NOTE:
The fuel pressure gauge registers 10 to 20 kPa (0.1
to 0.2 kgf/cm2, 1 to 3 psi) higher than standard Values during high-altitude operations.
ME(D0HC TU RB0)-27
VALVE CLEARANCE
MECHANICAL
8. Valve Clearance
A: INSPECTION
CAUTION:
Inspection and adjustment of valve clearance
should be performed while engine is cold.
1) Set the vehicle onto the lift.
2) Disconnect the ground terminal from battery.
3) Remove the air intake duct. TURBO)-8, REMOVAL, Air Intake Duct.>
4) Remove one bolt which secures the timing belt
cover (RH).
5) Lift-up the vehicle.
6) Remove the under cover.
7) Loosen the remaining bolts which secure the
timing belt cover (RH), then remove the belt cover.
8) Lower the vehicle.
9) When inspecting #1 and #3 cylinders:
(1) Pull out the engine harness connector with
acket from air cleaner upper cover.
(2) Remove the air cleaner case. IN(D0HC TURBO)-7, REMOVAL, Air Cleaner.>
(3) Disconnect the spark plug cords from spark
plugs (#1 and #3 cylinders).
(4) Place a suitable container under the vehicle.
(5) Disconnect the PCV hose from rocker cover
(6) Remove the bolts, then remove the rocker
cover (RH).
(RH).
10) When inspecting #2 and #4 cylinders:
(1) Disconnect the battery terminal, and then
remove the battery and battery carrier.
H6M0426
(2) Remove the bolt which secures the engine
harness bracket onto body.
-16M0429
(3) Disconnect the washer motor connectors.
(4) Remove the washer tank mounting bolts.
ME(D0HC TURBO)-28
VALVE CLEARANCE
m MECHANICAL
(5) Move the washer tank upward.
(6) Disconnect the spark plug cords from spark
plugs (#2 and #4 cylinders).
(7) Place a suitable container under the vehicle.
(8) Disconnect the PCV hose from rocker cover
(9) Remove the bolts, then remove the rocker
cover (LH).
11) Turn the crankshaft pulley clockwise until arrow
mark on the camshaft sprocket is set to position
shown in the figure.
NOTE:
Turn the crankshaft using ST.
ST 499987500 CRANKSHAFT SOCKET
w-0.
#I
#3
IN.
EX.
S2M1192B I
12) Measure #1 cylinder intake valve and #3 cylinder exhaust valve clearance by using thickness
CAUTION:
Insert the thickness gauge in as horizontal a
direction as possible with respect to the shim.
Measure the exhaust valve clearances while
lifting-up the vehicle.
Valve clearance:
gauge (A).
Intake: 0.20fo.02 mm (0.0079H0008 in)
Exhaust: 0.25fo.02 mm (0.0098M.0008 in)
NOTE:
If the measured value is not within specification,
take notes of the value in order to adjust the valve
clearance later on.
13) If necessary, adjust the valve clearance. to ME(D0HC TURBO)-30, ADJUSTMENT, Valve
Clearance.>
14) Further turn the crankshaft pulley clockwise.
Using the same procedures described previously,
then measure valve clearances again.
(1) Set the arrow mark on camshaft sprocket to
position shown in the figure, and measure #2
cylinder exhaust valve and #3 cylinder intake
valve clearances.
\J
#2 EX.
#3 IN.
r S2M1194B I
(2) Set the arrow mark on camshaft sprocket to
position shown in the figure, and measure #2
cylinder intake valve and #4 cylinder exhaust
valve clearances.
#2 IN
#4 EX.
I I
S2M1195B
ME(D0HC TURBO)-29
I
VALVE CLEARANCE
MECHANICAL
(3) Set the arrow mark on camshaft sprocket to
position shown in the figure, and measure #I
cylinder exhaust valve and #4 cylinder intake
valve clearances.
#I EX.
#4 IN. S2M 1 1960
15) After inspection, install the related parts in the
reverse order of removal.
Tightening torques
32 N-m (3.3 kgf-m, 24 ft-lb)
B: ADJUSTMENT
CAUTION:
Adjustment of valve clearance should be performed while engine is cold.
1) Measure all valve clearances. ME(D0HC TURBO)-28, INSPECTION, Valve
Clearance.>
NOTE:
Record each valve clearance after it has been
measured.
B2M1234
2) Remove the shim from valve lifter.
(1) Prepare the ST.
ST 498187200 SHIM REPLACER
H2M3622
(2) Rotate the notch of the valve lifter outward
by 45".
ME(D0HC TURBO)-30
VALVE CLEARANCE
MECHANICAL
(3) Adjust the SHIM REPLACER notch to valve
lifter and set it.
NOTE:
When setting, be careful the SHIM REPLACER
edge does not touch shim.
(4) Tighten bolt (A) and install it to the cylinder
head.
(5) Tighten bolt (B) and insert the valve lifter.
B )
H2M3623A
(6) Insert tweezers into the notch of the valve
lifter, and take the shim out.
NOTE:
By using a magnet (A), the shim (B) can be taken
out without dropping it.
H2M3624A
3) Measure the thickness of shim with a micrometer.
B2M1240
4) Select a shim of suitable thickness using measured valve clearance and shim thickness, by referring to the following table.
5) Set the suitable shim selected in step 4) to valve
lifter.
Unit: mm
Intake valve:S =(V + T) - 0.20
Exhaust valve:S =(V + T) - 0.25
S: Shim thickness to be used
V: Measured valve clearance
T: Shim thickness required
ME(D0HC TURBO)-31
VALVE CLEARANCE
MECHANICAL
1321 8 AKOlO 2.00 (0.0787)
1321 8 AK020 2.02 (0.0795)
I 1321 8 AK070 I 2.12 (0.0835) 1
1321 8 AK030
1321 8 AK040
1321 8 AK050
1321 8 AK060
1321 8 AK080
1321 8 AK100 2.1 8 (0.0858)
2.04 (0.0803)
2.06 (0.081 1)
2.08 (0.0819)
2.1 0 (0.0827)
I 1321 8 AE730 I 2.24 (0.0882) 1
1321 8 AFO10
1 32 1 8 AF020
1321 8 AF030
1321 8 AF040
1321 8 AE750
1321 8 AE790 2.30 (0.0906)
2.52 (0.0992)
2.53 (0.0996)
2.54 (0.1 000)
2.55 10.1 0041
I 1321 8 AE850 I 2.36 (0.0929) 1
1321 8 AF050
1321 8 AE870
1321 8 AE910 2.42 (0.0953)
2.56 (0.1008)
I 1321 8 AE940 I 2.45 (0.0965) 1
1321 8 AF070
1321 8 AE950
1321 8 AE970 2.48 (0.0976)
2.58 (0.1 01 6)
I 1 32 18 AFOOO I 2.51 (0.0988) 1
1321 8 AF090 2.60 (0.1024)
1321 8 AF110
I 1321 8 AF060 I 2.57 (0.1 01 2) 1
2.62 (0.1031)
1321 8 AF130 2.64 (0.1 039)
1321 8 AFl50
I 1321 8 AF170 I 2.68 (0.1055) 1
2.66 (0.1 047)
1321 8 AF190
ME(D0HC TURBO)-32
2.70 (0.1063)
ENGINE ASSEMBLY
MECHANICAL
9. Engine Assembly
A: REMOVAL
1) Set the vehicle on lift arms.
2) Open the front hood fully and support with stay.
3) Raise the rear seat, and turn the floor mat up.
4) Release the fuel pressure.
(1) Disconnect the fuel pump relay connector.
I
(2) Start the engine, and run until stalls.
(3) After the engine stalls, crank it for five seconds more.
(4) Turn the ignition switch to "OFF".
5) Remove the filler cap.
6) Disconnect the ground terminal from battery.
7) Remove the radiator from vehicle.
8) Remove the coolant filler tank. REMOVAL, Coolant Filler Tank.>
9) Collect refrigerant, and remove the pressure
hoses.
(1) Place and connect the attachment hose to
the refrigerant recycle system.
(2) Collect the refrigerant from A/C system.
(3) Disconnect the A/C pressure hoses from A/
C compressor.
10) Remove the intercooler. TURBO)-1 0, REMOVAL, Intercooler.>
11) Disconnect the following connectors and cable.
(1) Engine harness connector
(2) Engine ground terminal
ME(D0HC TU RB0)-33
ENGINE ASSEMBLY
MECHANICAL
(3) Engine harness connector
' S2M1930 I l l '
(4) Generator connector, terminal and A/C
compressor connectors
(A) A/C compressor connector
(B) Generator connector and terminal
(5) Accelerator cable
(6) Clutch release spring
12) Disconnect the following hoses.
(1) Brake booster vacuum hose
- EN0204
(2) Heater inlet outlet hose
13) Remove the power steering pump from bracket.
(1) Loosen lock bolt and slider bolt, and remove
the front side V-belt.
(2) Disconnect the power steering switch connector.
BO)-44, FRONT SIDE BELT, REMOVAL, V-
ME(D0HC TURBO)-34
ENGINE ASSEMBLY
MECHANICAL
(3) Remove the pipe with bracket from intake
manifold.
(4) Remove the power steering pump from engine.
(5) Remove the power steering tank from the
bracket by pulling it upward.
I I
(6) Place the power steering pump on the right
side wheel apron.
14) Remove the center exhaust pipe. EX(D0HC TURBO)-8, REMOVAL, Center Exhaust
Pipe.>
15) Remove the nuts which hold lower side of
transmission to engine.
16) Remove the nuts which install the front cushion
rubber onto front crossmember.
17)
I
SeDarate the clutch release fork from release
bearing. (MT vehicles)
(1) Remove the clutch operating cylinder from
transmission.
(2) Remove the plug using a 10 mm hexagon
wrench.
I
S2M193:
ME(D0HC TURBO)-35
ENGINE ASSEMBLY
MECHANICAL
(3) Screw the 6 mm dia. bolt into release fork
shaft, and remove it.
S2M 1936A
(A) Shaft
(6) Bolt
(4) Raise the release fork and unfasten the release bearing tabs to free release fork.
CAUTION:
Step (4) is required to prevent interference with
engine when removing the engine from transmission.
18) Separate the torque converter clutch from drive
plate. (AT vehicles)
(1) Lower the vehicle.
(2) Remove the service hole plug.
(3) Remove the bolts which hold torque converter clutch to drive plate.
(4) Remove the other bolts while rotating the
engine using ST.
ST 499977300 CRANK PULLEY WRENCH
19) Remove the pitching stopper.
20) Disconnect the fuel delivery hose, return hose
and evaporation hose.
CAUTION:
Catch fuel from hose into container.
Disconnect the hose with its end wrapped
with cloth to prevent fuel from splashing.
I I ' .
21) Remove the fuel filter and bracket.
22) Support the engine with a lifting device and wire
ropes.
ME(D0HC TURBO)-36
MECHANICAL
ENGINE ASSEMBLY
23) Support the transmission with a garage jack.
CAUTION:
Before moving the engine away from transmission, check to be sure no work has been overlooked. Doing this is very important in order to
facilitate re-installation and because transmis25) Remove the engine from vehicle.
(1) Slightly raise the engine.
(2) Raise the transmission with garage jack.
(3) Move the engine horizontally until the mainshaft is withdrawn from clutch cover.
(4) Slowly move the engine away from engine
sion lowers under its own weight.
24) Separation of engine and transmission.
(1) Remove the starter.
(2) Install the ST to torque converter clutch
case. (AT vehicles)
ST 498277200 STOPPER SET
(3) Remove the bolts which hold right upper
side of transmission to engine.
B3M2044
compartment.
CAUTION:
Be careful not to damage adjacent parts or
body panels with crank pulley, oil pressure
gauge, etc.
26) Remove the front cushion rubbers.
ME(D0HC TURBO)-37
I
MECHANICAL
ENGINE ASSEMBLY
B: INSTALLATION (4) Apply grease to the specified points.
1) Install the clutch release fork and bearing onto
transmission. (MT vehicles)
Spline ~ x 2 2 0 0
Shaft SUNLIGHT 2
(1) Remove the release bearing from clutch
cover with flat type screw driver.
(2) Install the release bearing on transmission.
(3) Install the release fork into release bearing
tab.
S2M1937A
(A) Release fork
(B) Release bearing
m S2M1938A
(A) Spline (FX2200)
(B) Shaft (SUNLIGHT 2)
(5) Insert the release fork shaft into release
fork.
CAUTION:
Make sure the cutout portion of release fork
shaft contacts spring pin.
(A) Release fork
(B) Release shaft
(C) Spring pin
ME(D0HC TURBO)-38
ENGINE ASSEMBLY
MECHANICAL
(6) Tighten the plug.
44 N-m (4.5 kgf-m, 32.5 ff-lb)
Tightening torque:
2) Install the front cushion rubbers to engine.
Tightening torque:
3) Install the engine onto transmission.
34 N-m (3.5 kgf-m, 25.3 ft-lb)
(1) Position the engine in engine compartment
and align it with transmission.
CAUTION:
Be careful not to damage adjacent parts or
body panels with crank pulley, oil pressure
gauge, etc.
(2) Apply a small amount of grease to splines of
mainshaft. (MT vehicles)
4) Tighten the bolts which hold right upper side of
transmission to engine
Tightening torque:
50 N.m (5.1 kgf-m, 36.9 ff-lb)
B2M2791
5) Remove the lifting device and wire ropes.
6) Remove the garage jack.
7) Install the pitching stopper.
Tightening torques
T I : 50 N-m (5.1 kgf-m, 37 ff-lb)
T2: 58 N.m (5.9 kgf-m, 43 ff-lb)
8) Remove the ST from torque converter clutch
case. (AT vehicles)
NOTE:
Be careful not to drop the ST into the torque converter clutch case when removing ST.
ST 498277200 STOPPER SET
9) Install the starter.
ME(D0HC TURBO)-39
ENGINE ASSEMBLY
MECHANICAL
IO) Install the torque converter clutch onto drive
plate. (AT vehicles)
(1) Tighten the bolts which hold torque converter clutch to drive plate.
(2) Tighten other bolts while rotating the engine
by using ST.
CAUTION:
Be careful not to drop bolts into the torque converter clutch housing.
ST 499977300 CRANK PULLEY WRENCH
Tightening torque:
25 N-m (2.5 kgf-m, 18.1 ft-lb)
(3) Clog the service hole with plug.
11) Install the fuel filter and bracket.
12) Install the power steering pump on bracket.
(1) Install the power steering tank on bracket.
n/ EN0361
(2) Install the power steering pump.
20.1 N.m (2.05 kgf-m, 14.8 ft-lb)
Tightening torque:
(3) Install the power steering pipe bracket on
right side intake manifold, and install the spark
plug codes.
(4) Connect the power steering switch connector.
(5) Install the front side V-belt, and adjust it.
BELT, INSTALLATION, V-belt.>
ME(D0HC TURBO)-40
ENGINE ASSEMBLY
m MECHANICAL
13) Tighten the nuts which hold lower side of transmission to engine.
Tightening torque:
50 N.m (5.1 kgf-m, 36.9 ft-lb)
14) Tighten the nuts which install the front cushion
rubber onto crossmember.
Tightening torque:
CAUTION:
Make sure the front cushion rubber mounting
bolts (A) and locator (B) are securely installed.
83 N.m (8.5 kgf-m, 61 ft-lb)
15) Install the center exhaust pipe.
Center Exhaust Pipe.>
16) Connect the following hoses:
(1) Fuel delivery hose, return hose and evaporation hose
(2) Heater inlet and outlet hoses
(3) Brake booster vacuum hose
(1) Engine ground terminal
(2) Engine harness connectors
(3) Generator connector and terminal
(4) A/C compressor connectors
(1) Accelerator cable
(2) Clutch release spring
17) Connect the following connectors and terminals:
18) Connect the following cables:
CAUTION:
After connecting each cable, adjust them.
19) Install the air intake system.
(1) Install the intercooler. TURBO)-1 1, INSTALLATION, Intercooler.>
(2) Install the air cleaner element and air cleaner upper cover.
(3) Install the engine harness connector bracket.
(4) Install the filler hose to air cleaner case.
20) Install the A/C pressure hoses.
CAUTION:
Use new O-rings.
Tightening torque:
25 N-m (2.5 kgf-m, 18.1 ft-lb)
21) Install the radiator.
22) Install the coolant filler tank. INSTALLATION, Coolant Filler Tank.>
23) Install the window washer tank.
24) Install the battery in the vehicle, and connect
cables.
25) Fill coolant.

REPLACEMENT, Engine Coolant.>
26) Charge the A/C system with refrigerant.

27) Remove the front hood stay, and close the front
hood.
28) Take off the vehicle from lift arms.
ME(D0HC TURBO)-41
ENGINE MOUNTING
MECHANICAL
10.Engine Mounting
A: REMOVAL
1) Remove the engine assembly. ME(D0HC TURBO)-33, REMOVAL, Engine Assembly.>
2) Remove the engine mounting from engine assembly.
B: INSTALLATION
Install in the reverse order of removal.
Tightening torque:
Engine mounting;
C: INSPECTION
Make sure there are no cracks or other damage
35 N-m (3.6 kgf-m, 25.8 ft-lb)
ME(D0HC TURBO)-42
MECHANICAL
PREPARATION FOR OVERHAUL
11 .Preparation for Overhaul
A: PROCEDURE
1) After removing the engine from the body, secure
it in the ST shown below.
ST1 498457000 ENGINE STAND ADAPTER
ST2 498457100 ENGINE STAND ADAPTER
ST3 499817000 ENGINE STAND
RH
LH
2) In this section the procedures described under
each index are all connected and stated in order. It
will be the complete procedure for overhauling of
the engine itself when you go through all steps in
the process.
Therefore, in this section, to conduct the particular
procedure within the flow of a section, you need to
go back and conduct the procedure described previously in order to do that particular procedure.
ME(D0HC TURBO)-43
V-BELT
MECHANICAL
12.V-belt
A: REMOVAL
1. FRONT SIDE BELT
NOTE:
Perform the following procedures 1) to 4) with the
engine installed to the body.
1) Remove the V-belt cover.
2) Loosen the lock bolt (A).
3) Loosen the slider bolt (B).
4) Remove the front side belt (C).
2. REAR SIDE BELT
1) Loosen the lock nut (A).
2) Loosen the slider bolt (B).
EN0226
3) Remove the A/C belt.
4) Remove the A/C belt tensioner.
B:
S2M0113
I NSTA LLATlO N
1. FRONT SIDE BELT
CAUTION:
Wipe off any oil or water on the belt and pulley.
1) Install a belt, and tighten the slider bolt so as to
obtain the specified belt tension ME(D0HC TURBO)-45, INSPECTION, V-belt.>
2) Tighten the lock bolt (A)
3) Tighten the slider bolt (B).
Tightening torque:
Lock bolt through bolt:
Slider bolt:
25 N.m (2.5 kgf-m, 18 ft-lb)
8 N.m (0.8 kgf-m, 5.5 ff-lb)
ME(D0HC TURBO)-44
V-BELT
MECHANICAL
2. REAR SIDE BELT C: INSPECTION
1) Install a belt, and tighten the slider bolt (B) so as
to obtain the specified belt tension. ME(D0HC TURBO)-45, INSPECTION, V-belt.>
1) Replace the belts, if cracks, fraying Or Wear is
found.
2) Check the drive belt tension and adjust it if nec2) Tighten the lock nut (A).
Tightening torque:
Lock nut (A);
22.6 Nom (2.3 kgf-m, 16.6 ff-lb)
6
essary by changing generator installing position
and/or idler pulley installing position.
Belt tension
(A)
(B) *
replaced: 7 - 9 mm (0.276 - 0.354 in)
reused: 9 - 11 mm (0.354 - 0.433 in)
replaced: 7.5 - 8.5 mm (0.295 - 0.335 in)
reused: 9.0 - 10.0 mm (0.354 - 0.394 in)
*: With Air conditioner
I 98 N (10 kgf, 22 Ib)
C/P Crankshaft pulley
P/S Power steering oil pump pulley
NC Air conditioning compressor pulley
I/P Idler pulley
GEN Generator
ME(D0HC TURBO)-&
CRANKSHAFT PULLEY
MECHANICAL
13.Crankshaft Pulley
A: REMOVAL
1) Remove the V-belt.
2) Remove the crankshaft pulley bolt. To lock
crankshaft, use ST.
ST 499977300
CRANKSHAFT PULLEY WRENCH
3) Remove the crankshaft pulley.
B: INSTALLATION
1) Install the crankshaft pulley.
2) Install the pulley bolt.
To lock the crankshaft, use ST.
ST 499977300 CRANKSHAFT PULLEY
WRENCH
(1) Clean the crankshaft pulley thread using an
air gun.
(2) Apply engine oil to the crankshaft pulley bolt
seat and thread.
(3) Tighten the bolts temporarily with tightening
torque of 44 Nom (4.5 kgf-m, 33 ft-lb).
(4) Tighten the crankshaft pulley bolts.
Tightening torque:
127 N-m (13 kgf-m, 94.0 ft-lb)
3) Confirm that the tightening angle of the crankshaft pulley bolt is 45 degrees or more. If not, conduct the following procedures (1) through (4).
CAUTION:
If the tightening angle of crankshaft pulley bolt
is less than 45 degrees, the bolt should be damaged. In this case, the bolt must be replaced.
(1) Replace the crankshaft pulley bolts and
clean them.
12369AA011
(2) Clean the crankshaft thread using an air
gun.
(3) Tighten the bolts temporarily with tightening
torque of 44 N.m (4.5 kgf-m, 33 ft-lb).
(4) Tighten the crankshaft pulley bolts keeping
them in an angle between 65 degrees and 75
degrees.
CAUTION:
Conduct the tightening procedures by confirming the turning angle of the crankshaft pulley
bolt referring to the gauge indicated on the belt
cover.
4) Install the A/C belt tensioner.
Crankshaft pulley bolt:
5) Install the A/C belt.
C: INSPECTION
1) Make sure the V-belt is not worn or otherwise
damaged.
2) Check the tension of the belt. ME(D0HC TURBO)-45, INSPECTION, V-belt.>
ME(D0HC TURBO)-46
BELT COVER
MECHANICAL
14.Belt Cover C: INSPECTION
A: REMOVAL
1) Remove the V-belt.
2) Remove the crankshaft pulley. ME(D0HC TURBO)-46, REMOVAL, Crankshaft
Pulley. >
3) Remove the left-hand belt cover (A).
4) Remove the right-hand belt cover (B).
5) Remove the front belt cover (C).
Make sure the cover is not damaged.
B: INSTALLATION
1) Install the front belt cover (C).
Tightening torque:
5 N-m (0.5 kgf-m, 3.6 ff-lb)
2) Install the right-hand belt cover (B).
Tightening torque:
3) Install the left-hand belt cover (A).
Tightening torque:
5 N.m (0.5 kgf-m, 3.6 ff-lb)
5 N-m (0.5 kgf-m, 3.6 ff-lb)
4) Install the crankshaft pulley. TURBO)-46, INSTALLATION, Crankshaft Pulley.>
5) Install the V-belt.
ME(D0HC TURBO)-47
TIMING BELT ASSEMBLY
MECHANICAL
15Timing Belt Assembly
A: REMOVAL
1. TIMING BELT
1) Remove the V-belt.
2) Remove the crankshaft pulley. ME(D0HC TURBO)-46, REMOVAL, Crankshaft
Pulley.>
3) Remove the belt cover. TURBO)-47, REMOVAL, Belt Cover.>
4) Remove the timing belt guides. (MT vehicle)
EN0257
5) If the alignment mark and/or arrow mark (which
indicates rotation direction) on timing belt fade
away, put new marks before removing the timing
belt as follows:
(1) Turn the crankshaft using ST, and align
alignment marks on crankshaft sprocket, lefthand intake camshaft sprocket, left-hand exhaust camshaft sprocket, right-hand intake camshaft sprocket and right hand exhaust camshaft
sprocket with notches of belt cover and cylinder
block.
ST 499987500 CRANKSHAFT SOCKET
ME(D0HC TURBO)-48
MECHANICAL
TIMING BELT ASSEMBLY
(2) Using white paint, put alignment and/or arrow marks on the timing belts in relation to the
sprockets.
Z,: 54.5 tooth length
Z,: 51 tooth length
Z,: 28 tooth length
S2M1223A
6) Remove the belt idler (A).
7 ) Remove the timing belt.
CAUTION:
After the timing belt has been removed, never
rotate the intake and exhaust, camshaft sprocket. If the camshaft sprocket is rotated, the intake and exhaust valve heads strike together
and valve stems are bent.
2. BELT IDLER AND AUTOMATIC BELT
TENSION ADJUSTER ASSEMBLY
1) Remove the belt idler (B) and (C).
S2M1226A
2) Remove the belt idler No. 2.
3) Remove the automatic belt tension adjuster assembly.
I I I I I I I I J S2M1226A
ME(D0HC TURBO)-49
TIMING BELT ASSEMBLY
MECHANICAL
B: INSTALLATION
ER ASSEMBLY AND BELT IDLER
1) Preparation for installation of automatic belt tension adjuster assembly:
CAUTION:
Always use a vertical type pressing tool to
move the adjuster rod down.
Do not use a lateral type vise.
Push the adjuster rod vertically.
Be sure to slowly move the adjuster rod down
applying a pressure of 294 N (30 kgf, 66 Ib).
Press-in the push adjuster rod gradually taking more than three minutes.
Do not allow press pressure to exceed 9,807
N (1,000 kgf, 2,205 Ib).
Press the adjuster rod as far as the end surface of the cylinder. Do not press the adjuster
rod into the cylinder. Doing so may damage the
cylinder.
Do not release the press pressure until stopper pin is completely inserted.
(1) Attach the automatic belt tension adjuster
assembly to the vertical pressing tool.
(2) Slowly move the adjuster rod down with a
pressure of 294 N (30 kgf, 66 Ib) until the adjuster rod is aligned with the stopper pin hole in the
cy1 inde r.
1. AUTOMATIC BELT TENSION ADJUST-
I 1 H2M23821
(3) With a 2 mm (0.08 in) dia. stopper pin or a 2
mm (0.08 in) (nominal) dia. hex bar wrench inserted into the stopper pin hole in the cylinder,
secure the adjuster rod.
2) Install the automatic belt tension adjuster assembly.
Tightening torque:
39 N-m (4.0 kgf-m, 28.9 ft-lb)
3) Install the belt idler No. 2.
Tightening torque:
39 N.m (4.0 kgf-m, 28.9 ff-lb)
4) Install the belt idler.
Tightening torque:
39 N.m (4.0 kgf-m, 28.9 ft-lb)
ME(D0HC TURBO)-50
MECHANICAL
TIMING BELT ASSEMBLY
2. TIMING BELT
1) Preparation for installation of automatic belt tension adjuster assembly. ADJUSTER ASSEMBLY AND BELT IDLER, Tim-

ing Belt Assembly.>
2) Crankshaft and camshaft sprocket alignment.
BO)-50, AUTOMATIC BELT TENSION
(1) Align mark (A) on the crankshaft sprocket
with mark on the oil pump cover at cylinder
block.
(2) Align single line mark (A) on the right-hand
exhaust camshaft sprocket with notch (B) on
be It cover.
(3) Align single line mark (A) on the right-hand
intake camshaft sprocket with notch (B) on belt
cover.
(Make sure double lines (C) on intake camshaft
and exhaust camshaft sprockets are aligned.)
(4) Align single line mark (A) on left-hand exhaust camshaft sprocket with notch (B) on belt
cover by turning the sprocket counterclockwise
s viewed from front of engine).
(5) Align single line mark (A) on left-hand intake
camshaft sprocket with notch (B) on belt cover
by turning the sprocket clockwise (as viewed
from front of engine).
Ensure double lines (C) on intake and exhaust
camshaft sprockets are aligned.
ME(D0HC TURBO)-51
TIMING BELT ASSEMBLY
MECHANICAL
(6) Ensure camshaft and crankshaft sprockets
are positioned properly.
CAUTION:
Intake and exhaust camshafts for this DOHC
engine can be independently rotated with the
timing belts removed. As can be seen from the
figure, if the intake and exhaust valves are lifted
simultaneously, their heads will interfere with
each other, resulting in bent valves.
( B ) B2M1392B
(A) Intake camshaft
(B) Exhaust camshaft
When the timing belts are not installed, four
camshafts are held at the “zero-lift” position,
where all cams on camshafts do not push the
intake and exhaust valves down. (Under this
condition, all valves remain unlifted.)
When the camshafts are rotated to install the
timing belts, #2 intake and #4 exhaust cam of
left-hand camshafts are held to push their corresponding valves down. (Under this condition,
these valves are held lifted.) Right-side camshafts are held so that their cams do not push
valves down.
Left-hand camshafts must be rotated from
the “zero-lift” position to the position where the
timing belt is to be installed at as small an angle
as possible, in order to prevent mutual interference of intake and exhaust valve heads.
Do not allow the camshafts to rotate in the direction shown in the figure as this causes both
intake and exhaust valves to lift simultaneously, resulting in interference with their heads.
I Rotate direction
S2M1231A
ME(D0HC TURBO)-52
MECHANICAL
TIMING BELT ASSEMBLY
3) Installation of timing belt:
S2M0410
Align the alignment mark on the timing belt with marks on the sprockets in the alphabetical order shown in
the figure. While aligning marks, position the timing belt properly.
CAUTION:
Disengagement of more than three timing belt teeth may result in interference between the valve
and piston.
Ensure the belt’s rotating direction is correct.
Arrow mark Timing belt
I /
28 tooth
length
r -- - _ - .
54.5 tooth length 51 tooth length
/
( E ) Install it in the end.
28 tooth
ength
I b ! I I
S2M1232P
ME(D0HC TURBO)-53
' TIMING BELT ASSEMBLY
MECHANICAL
4) Install the belt idlers.
Tightening torque:
CAUTION:
Make sure that the marks on the timing belt and
sprockets are aligned.
39 N.m (4.0 kgf-m, 28.9 ft-lb)
5) After ensuring that the marks on the timing belt
and sprockets are aligned, remove the stopper pin
from tensioner adjuster.
6) Install the timing belt guide. (MT vehicle)
(1) Temporarily tighten the remaining bolts.
(2) Check and adjust clearance between the
timing belt and timing belt guide.
1.020.5 mm (0.039M.020 in)
Clearance:
EN0254
(3) Tighten the remaining bolts.
9.8 N.m (1.0 kgf-m, 7.2 ft-lb)
Tightening torque:
ME(D0HC TURBO)-54
TIMING BELT ASSEMBLY
m MECHANICAL
7) Install the belt cover.
8) Install the crankshaft pulley. TURBO)-46, REMOVAL, Crankshaft Pulley.>
9) Install the V-belt.
C: INSPECTION
1. TIMING BELT
1) Check the timing belt teeth for breaks, cracks,
and wear. If any fault is found, replace the belt.
2) Check the condition of back side of belt; if any
crack is found, replace the belt.
CAUTION:
Be careful not to let oil, grease or coolant
contact the belt. Remove quickly and thoroughly if this happens.
Do not bend the belt sharply.
Bending radius: h
60 mm (2.36 in) or more
G2M0115
ME(D0HC TURBO)-55
TIMING BELT ASSEMBLY
MECHANICAL
2. AUTOMATIC BELT TENSION ADJUST-
ER
1) Visually check the oil seals for leaks, and rod
ends for abnormal wear or scratches. If necessary,
replace the automatic belt tension adjuster assembly.
CAUTION:
Slight traces of oil at rod's oil seal does not indicate the a problem.
2) Check that the adjuster rod does not move when
a pressure of 294 N (30 kgf, 66 Ib) is applied to it.
This is to check adjuster rod stiffness.
3) If the adjuster rod is not stiff and moves freely
when applying 294 N (30 kgf, 66 Ib), check it using
the following procedures:
(1) Slowly press the adjuster rod down to the
end surface of the cylinder. Repeat this motion 2
or 3 times.
(2) With the adjuster rod moved all the way up,
apply a pressure of 294 N (30 kgf, 66 Ib) to it.
Check the adjuster rod stiffness.
(3) If the the adjuster rod is not stiff and moves
down, replace the automatic belt tension adjuster assembly with a new one.
CAUTION:
Always use a vertical type pressing tool to
move the adjuster rod down.
Do not use a lateral type vise.
Push the adjuster rod vertically.
Press-in the push adjuster rod gradually taking more than three minutes.
Do not allow press pressure to exceed 9,807
N (1,000 kgf, 2,205 Ib).
Press the adjuster rod as far as the end surface of the cylinder. Do not press the adjuster
rod into the cylinder. Doing so may damage the
cylinder.
4) Measure the extension of rod beyond the body. If
it is not within specifications, replace with a new
one.
Rod extension: H
5.7fo.5 mm (0.224fo.020 in)
3. BELT TENSION PULLEY
1) Check the mating surfaces of timing belt and
contact point of adjuster rod for abnormal wear or
scratches. Replace the belt tension pulley if faulty.
2) Check the belt tension pulley for smooth rotation.
Replace if noise or excessive play is noted.
3) Check the belt tension pulley for grease leakage.
4. BELTIDLER
1) Check the idler for smooth rotation. Replace if
noise or excessive play is noted.
2) Check the outer contacting surfaces of idler pulley for abnormal wear and scratches.
3) Check the idler for grease leakage.
H
ME(D0HC TURBO)-56
m MECHANICAL
CAMSHAFT SPROCKET
16.Camshaft Sprocket
A: REMOVAL
1) Remove the V-belt.
2) Remove the crankshaft pulley. ME(D0HC TURBO)-46, REMOVAL, Crankshaft
Pulley.>
3) Remove the belt cover. TURBO)-47, REMOVAL, Belt Cover.>
4) Remove the timing belt assembly. ME(D0HC TURBO)-48, REMOVAL, Timing Belt
Assembly.>
5) Remove the camshaft position sensor. FU(D0HC TURBO)-31, REMOVAL, Camshaft Position Sensor.>
6) Remove the camshaft sprockets. To lock the
camshaft, use ST.
ST 499207400 CAMSHAFT SPROCKET
WRENCH
B: INSTALLATION
1) Install the camshaft sprocket No. 1. and No. 2.
To lock camshaft, use ST.
ST 4992071 00 CAMSHAFT SPROCKET
Tightening torque:
CAUTION:
Do not confuse left and right side camshaft
sprockets during installation. The camshaft
sprocket No. 2 is identified by a projection used
to monitor camshaft position sensor.
WRENCH
98 N-m (IO kgf-m, 72.4 ft-lb)
2M1879A
2) Install the camshaft position sensor. FU(D0HC TURBO)-31, INSTALLATION, Cam-
shaft Position Sensor.>
3) Install the timing belt assembly. ME(D0HC TURBO)-50, INSTALLATION, Timing
Belt Assembly.>
4) Install the belt cover.
5) Install the crankshaft pulley. TURBO)-46, INSTALLATION, Crankshaft Pulley.>
6) Install the V-belt.
C: INSPECTION
1) Check the sprocket teeth for abnormal wear and
scratches.
2) Make sure there is no free play between sprocket and key.
3) Check the crankshaft sprocket notch used for
sensor for damage and contamination of foreign
matter.
ME(D0HC TURBO)-57
CRANKSHAFT SPROCKET
MECHANICAL
17.Crankshaft Sprocket
A: REMOVAL
1) Remove the V-belt.
2) Remove the crankshaft pulley. ME(D0HC TURBO)-46, REMOVAL, Crankshaft
Pu Hey. >
3) Remove the belt cover. TURBO)-47, REMOVAL, Belt Cover.>
4) Remove the timing belt assembly. ME(D0HC TURBO)-48, REMOVAL, Timing Belt
Assembly . >
5) Remove the camshaft sprocket. ME(D0HC TURBO)-57, REMOVAL, Camshaft
Sprocket . >
6) Remove the crankshaft sprocket.
B: INSTALLATION
1) Install the crankshaft sprocket.
EN0263
2) Install the camshaft sprocket. ME(D0HC TURBO)-57, INSTALLATION, Cam-
s haft Sprocket . >
3) Install the timing belt assembly. ME(D0HC TURBO)-50, INSTALLATION, Timing
Belt Assembly.>
4) Install the belt cover.
5) Install the crankshaft pulley. TU RB0)-46, I N STALLAT ION, Cranks haft Pu I ley. >
6) Install the V-belt.
C: INSPECTION
1) Check the sprocket teeth for abnormal wear and
scratches.
2) Make sure there is no free play between sprocket and key.
3) Check the crankshaft sprocket notch used for
sensor for damage and contamination of foreign
matter.
ME( DOHC TU RBO)-58
I
CAMSHAFT
MECHANICAL
18.Camshaft
A: REMOVAL
I ) Remove the V-belt.
2) Remove the crankshaft pulley. ME(D0HC TURBO)-46, REMOVAL, Crankshaft
Pulley. >
3) Remove the belt cover. TURBO)-47, REMOVAL, Belt Cover.>
4) Remove the timing belt assembly. ME(D0HC TURBO)-48, REMOVAL, Timing Belt
Assembly.>
5 ) Remove the camshaft sprocket. ME(D0HC TURBO)-57, REMOVAL, Camshaft
Sprocket.>
6) Remove the crankshaft sprocket. ME(D0HC TURBO)-58, REMOVAL, Crankshaft
Sprocket. >
7) Remove the right-hand belt cover No.2.
8) Remove the tensioner bracket.
9) Remove the left-hand belt cover No. 2.
S2M1162
10) Remove the oil level gauge guide. (LH side
11) Remove the spark plug cord.
12) Remove the rocker cover and gasket.
13) Loosen the intake camshaft cap bolts equally, a
little at a time in alphabetical sequence shown in
the figure.
only)
L S2M1233A U U
14) Remove the camshaft caps and intake camshaft.
15) Loosen the exhaust camshaft cap bolts equally,
a little at a time in alphabetical sequence shown in
the figure.
16) Remove the camshaft caps and exhaust camshaft.
CAUTION:
Arrange camshaft caps in order so that they
can be installed in their original positions.
17) Similarly, remove the right-hand camshafts and
related parts.
ME( DOHC TU RBO)-59
I
CAMSHAFT
MECHANICAL
B: INSTALLATION
1) Camshaft installation:
Apply engine oil to the cylinder head at camshaft
bearing location before installing the camshaft. Install the camshaft so that each valves is close to or
in contact with “base circle” of cam lobe.
CAUTION:
When the camshafts are positioned as shown
in the figure, camshafts need to be rotated at a
minimum to align with the timing belt during installation.
Right-hand camshaft need not be rotated
when set at the position shown in the figure.
Left-hand intake camshaft: Rotate 80” clockwise.
Left-hand exhaust camshaft: Rotate 45” counterclockwise.
A
h 2) Camshaft cap installation:
(1) Apply fluid packing sparingly to the cap mating surface.
CAUTION:
Do not apply fluid packing excessively. Failure
to do so may cause excess packing to come out
and flow toward oil seal, resulting in oil leaks.
Fluid packing:
THREE BOND 1215 or equivalent
(2) Apply engine oil to cap bearing surface and
install the cap on camshaft as shown by identification mark (A).
(3) Gradually tighten the cap in at least two
stages in alphabetical sequence shown in the
figure, and then tighten to specified torque.
20 N.m (2.0 kgf-m, 14.5 ft-16)
Tightening torque:
I U U S2M 1233A
A Left side cylinder head
B Right side cylinder head
(a) Intake camshaft
(b) Exhaust camshaft
(4) Similarly, tighten the cap on exhaust side.
After tightening the cap, ensure the camshaft rotates only slightly while holding it at “base” circle.
20 Nom (2.0 kgf-m, 14.5 ft-16)
Tightening torque:
ME(D0HC TURBO)-60
CAMSHAFT
MECHANICAL
3) Camshaft oil seal installation:
Apply grease to the new oil seal lips and press onto
the front end of camshaft by using ST1 and ST2.
CAUTION:
Use a new oil seal.
ST1 499587600 OIL SEAL INSTALLER
ST2 499597200 OIL SEAL GUIDE
4) Rocker cover installation:
(1) Install the gasket on rocker cover.
Install the peripheral gasket and ignition coil
gasket.
(2) Apply fluid packing to four front open edges
of peripheral gasket.
THREE BOND 1215 or equivalent
Fluid packing:
(3) Install the rocker cover on cylinder head.
Ensure the gasket is properly positioned during
installation.
5) Install the spark plug cord.
6) Similarly, install the parts on right-hand side.
7) Install the right-hand belt cover No. 2.
Tightening torque:
5 N-m (0.5 kgf-m, 3.6 ft-lb)
8) Install the tensioner bracket.
Tightening torque:
25 N-m (2.5 kgf-m, 18.1 fWb)
9) Install the left-hand belt cover No. 2.
Tightening torque:
5 N.m (0.5 kgf-m, 3.6 ft-lb)
S2M1162
10) Install the crankshaft sprocket. ME(D0HC TURBO)-58, INSTALLATION, Crankshaft Sprocket.>
11) Install the camshaft sprockets. ME(D0HC TURBO)-57, INSTALLATION, Cam-
shaft Sprocket.>
12) Install the timing belt assembly. ME(D0HC TURBO)-50, INSTALLATION, Timing
Belt Assembly.>
13) Install the belt cover.
ME(D0HC TURBO)-61
CAMSHAFT
MECHANICAL
Front
14) Install the crankshaft pulley. ME(DOHC TURBO)-467 INSTALLATION, Crankshaft Pulley.> essa ry .
15) Install the V-belt. Limit:
1) Measure the bend, and repair or replace if nec0.020 mm (0.0008 in)
Center, rear
2) Check the journal for damage and wear.
place if faulty.
ReI 37.946-37.9635 mm 29.946 - 29.963 mm (1.4939- 1.4946 in) (1.1790- 1.1796 in) I Standard I
4) Measurement of the camshaft journal oil clearance:
(1) Clean the bearing caps and camshaft journals.
(2) Place the camshafts on the cylinder head.
(Without installing the valve rocker.)
(3) Place a plastigauge across each of the camshaft jounals.
(4) Gradually tighten the cap in at least two
stages in alphabetical sequence shown in the
figure, and then tighten to specified torque.
20 N-m (2.0 kgf-m, 14.5 ff-lb)
Tightening torque:
I U U S2M1233A I
CAUTION:
Do not turn the camshaft.
ME( DOH C TU R BO)-62
CAMSHAFT
MECHANICAL
(5) Remove the bearing caps.
(6) Measure the widest point of the plastigauge
on each journal.
If the oil clearance exceeds the limit, replace the
camshaft. If necessary, replace the camshaft
caps and cylinder head as a set.
0.037 - 0.072 mm (0.0015 - 0.0028 in)
0.10 mm (0.0039 in)
Standard:
Limit:
(7) Completely remove the plastigauge.
5) Check the cam face condition; remove the minor
faults by grinding with oil stone. Measure the cam
height H; replace if the limit has been exceeded.
Cam height: H
Standard:
Intake:
Exha us t:
46.25 - 46.35 mm (1.821 - 1.825 in)
46.15 - 46.25 mm (1.81 7 - 1.821 in)
Limit:
Intake:
Exhaust:
46.15 mm (7.81 7 in)
46.05 mm (1.813 in)
Cam base circle diameter A:
37.0 mm (1.457 in)
I t
B2M1209A
A
6) Measure the thrust clearance of camshaft with
dial gauge. If the clearance exceeds the limit, replace the caps and cylinder head as a set. If necessary replace the camshaft.
Standard:
0.015 - 0.070 mm (0.0006 - 0.0028 in)
Limit:
0.1 mm (0.004 in)
ME(D0HC TURBO)-63
CYLINDER HEAD ASSEMBLY
MECHANICAL
19.Cylinder Head Assembly
A: REMOVAL
1) Remove the V-belt.
2) Remove the crankshaft pulley. ME(D0HC TURBO)-46, REMOVAL, Crankshaft
Pu Hey. >
3) Remove the belt cover. TURBO)-47, REMOVAL, Belt Cover.>
4) Remove the timing belt assembly. ME(D0HC TURBO)-48, REMOVAL, Timing Belt
Assembly.>
5 ) Remove the camshaft sprocket. ME(D0HC TURBO)-57, REMOVAL, Camshaft
Sprocket.>
6) Remove the intake manifold. TURBO)-1 5, REMOVAL, Intake Manifold.>
7) Remove the bolt which installs the A/C compressor bracket on cylinder head.
8) Remove the camshaft.
9) Remove the cylinder head bolts in alphabetical
sequence shown in the figure.
CAUTION:
Leave bolts (A) and (D) engaged by three or
four threads to prevent the cylinder head from
falling.
U U B2M 1397C
10) While tapping the cylinder head with a plastic
hammer, separate it from cylinder block.
Remove the bolts (A) and (D) to remove the cylinder head.
I n n
B2M1397C
11) Remove the cylinder head gasket.
CAUTION:
Do not scratch the mating surface of cylinder
head and cylinder block.
12) Similarly, remove the right side cylinder head.
B: INSTALLATION
1) Install the cylinder head and gaskets on cylinder
block.
CAUTION:
Use new cylinder head gaskets.
Be careful not to scratch the mating surface
of cylinder head and cylinder block.
2) Tighten the cylinder head bolts.
(1) Apply a coat of engine oil to washers and
bolt threads.
(2) Tighten all bolts to 29 N.m (3.0 kgf-m, 22 ftIb) in alphabetical sequence.
Then tighten all bolts to 69 N-m (7.0 kgf-m, 51 ftIb) in alphabetical sequence.
(3) Back off all bolts by 180" first; back them off
by 180" again.
(4) Tighten the bolts (A) and (B) to 34 N-m (3.5
kgf-m, 25 ft-lb).
I n n
ME( DOHC TU RB0)-64
CYLINDER HEAD ASSEMBLY
(5) Tighten the bolts (C), (D), (E) and (F) to 15
N-m (1.5 kgf-m, 11 ft-lb).
n n
(6) Tighten all bolts by 80 to 90" in alphabetical
sequence.
CAUTION:
Do not tighten the bolts more than 90".
(7) Further tighten all bolts by 80 to 90" in alphabetical sequence.
CAUTION:
Ensure the total "re-tightening angle" [in the
two previous steps] do not exceed 180".
3) Install the camshaft.
4) Install the A/C compressor bracket on cylinder
head.
5) Install the intake manifold. TURBO)-1 8, INSTALLATION, Intake Manifold.>
6) Install the camshaft sprocket. ME(D0HC TURBO)-57, INSTALLATION, Cam-
shaft Sprocket.>
7) Install the timing belt assembly. ME(D0HC TURBO)-50, INSTALLATION, Timing
Belt Assembly.>
8) Install the belt cover.
9) Install the crankshaft pulley. TU RBO) -46, I N STALL AT1 0 N , Crankshaft P u I ley. >
10) Install the V-belt.
C: DISASSEMBLY
1) Remove the valve shims and valve lifters.
2) Compress the valve spring and remove the valve
spring retainer key. Remove each valve and valve
spring.
ST1 498267600 CYLINDER HEAD TABLE
ST2 49971 8000 VALVE SPRING REMOVER
CAUTION:
Keep the removed parts in order for re-installing in their original positions.
Mark each valve to prevent confusion.
Use extreme care not to damage the lips of
the intake valve oil seals and exhaust valve oil
seals.
SZM1881A
ME(D0HC TURBO)-65
CYLINDER HEAD ASSEMBLY
MECHANICAL
D: ASSEMBLY
S2M1197A
(1) Exhaust valve
(2) Intake valve
(3) Cylinder head
(4) Valve spring seat
(5) Intake valve oil seal
(6) Valve spring
(7) Retainer
(8) Retainer key
(9) Valve lifter
(10) Shim
( 1 1)
(1 2) Intake valve guide
(1 3) Exhaust valve guide
Exhaust valve oil seal
ME(D0HC TURBO)-66
m CYLINDER HEAD ASSEMBLY
1) Installation of valve spring and valve:
(1) Coat the stem of each valve with engine oil
and insert the valve into valve guide.
CAUTION:
When inserting the valve into valve guide, use
special care not to damage the oil seal lip.
(2) Set the cylinder head on STI,
(3) Install the valve spring and retainer using
ST2.
ST1 498267600 CYLINDER HEAD TABLE
ST2 49971 8000 VALVE SPRING REMOVER
CAUTION:
Be sure to install the valve springs with their
close-coiled end facing the seat on the cylinder
head.
(4) Compress the valve spring and fit the valve
spring retainer key.
(5) After installing, tap the valve spring retainers
lightly with wooden hammer for better seating.
2) Apply oil to the surface of the valve lifter and
valve shim.
3) Install the valve lifter and valve shim.
E: INSPECTION
1. CYLINDER HEAD
1) Make sure that no crack or other damage exists.
In addition to visual inspection, inspect the important areas by means of red check.
2) Measure the warping of the cylinder head surface that mates with crankcase by using a straight
edge (A) and thickness gauge (B).
If the warping exceeds 0.05 mm (0.0020 in), regrind the surface with a surface grinder.
Warping limit:
Grinding limit:
Standard height of cylinder head:
CAUTION:
Uneven torque for the cylinder head nuts can
cause warping. When reassembling, pay special attention to the torque so as to tighten
0.05 mm (0.0020 in)
0.3 mm (0.012 in)
127.5 mm (5.02 in)
evenly.
ME(D0HC TURBO)-67
CYLINDER HEAD ASSEMBLY
MECHANICAL
2. VALVESEAT
Inspect the intake and exhaust valve seats, and
correct the contact surfaces with valve seat cutter if
they are defective or when valve guides are replaced.
Valve seat width: W
Intake
Standard
1.0 mm (0.039 in)
Limit
1.7 mm (0.067 in)
Exhaust
Standard
1.5 mm (0.059 in)
Limit
2.2 mm (0.087 in)
,
G2M0761
3. VALVE GUIDE
1) Check the clearance between valve guide and
stem. The clearance can be checked by measuring
the outside diameter of valve stem and the inside
diameter of valve guide with outside and inside micrometers respectively.
Clearance between the valve guide and valve
stem:
Standard
Intake
0.035 - 0.062 mm (0.0014 - 0.0024 in)
Exhaust
0.040 - 0.067 mm (0.0016 - 0.0026 in)
0.15 mm (0.0059 in)
Limit
2) If the clearance between valve guide and stem
exceeds the limit, replace the valve guide or valve
itself whichever shows greater amount of wear.
See the following procedure for valve guide replace men t.
Valve guide inner diameter:
Valve stem outer diameters:
6.000 - 6.012 mm (0.2362 - 0.2367 in)
Intake
5.950 - 5.965 mm (0.2343 - 0.2348 in)
Exhaust
5.945 - 5.960 mm (0.2341 - 0.2346 in)
(1) Place the cylinder head on STI with the
combustion chamber upward so that valve
guides enter the holes in ST1.
(2) Insert the ST2 into valve guide and press it
down to remove the valve guide.
ST1 498267600 CYLINDER HEAD TABLE
ST2 499767200 VALVE GUIDE REMOVER
(3) Turn the cylinder head upside down
place ST as shown in the figure.
and
ST 498767700 VALVE GUIDE ADJUSTER
L
(4) Before installing a new valve guide, make
sure that neither scratches nor damages exist
on the inside surface of the valve guide holes in
cylinder head.
ME(D0HC TURBO)-68
CYLINDER HEAD ASSEMBLY m
MECHANICAL
(5) Put a new valve guide, coated with sufficient
oil, in cylinder, and insert ST1 into valve guide.
Press in until the valve guide upper end is flush
with the upper surface of ST2.
ST1 499767200 VALVE GUIDE REMOVER
ST2 498267700 VALVE GUIDE ADJUSTER
S2M1883A
(6) Check the valve guide protrusion.
12.0 - 12.4 mm (0.472 - 0.488 in)
(7) Ream the inside of valve guide with
Valve guide protrusion: L
3T.
Gently rotate the reamer clockwise while pressing it lightly into the valve guide, and return it
also rotating clockwise. After reaming, clean the
valve guide to remove chips.
ST 499767400 VALVE GUIDE REAMER
CAUTION:
Apply engine oil to the reamer when reaming.
If the inner surface of the valve guide is torn,
the edge of the reamer should be slightly
ground with an oil stone.
If the inner surface of the valve guide becomes lustrous and the reamer does not chips,
use a new reamer or remedy the reamer.
(8) Recheck the contact condition between
valve and valve seat after replacing the valve
guide.
4. INTAKE AND EXHAUST VALVE
1) Inspect the flange and stem of valve, and replace if damaged, worn, or deformed, or if “H” is
less than the specified limit.
H:
Intake
Standard
1.2 mm (0.047 in)
Limit
0.8 mm (0.031 in)
Exhaust
Standard
1.5 mm (0.059 in)
Limit
0.8 mm (0.031 in)
Valve overall length:
Intake
Exhaust
104.4 mm (4.110in)
104.7 mm (4.122 in)
G2M0153
2) Put a small amount of grinding compound on the
seat surface and lap the valve and seat surface.
Install a new intake valve oil seal after lapping.
ME(D0HC TURBO)-69
I
MECHANICAL
Free length
CYLINDER HEAD ASSEMBLY
44.67 mm (1.7587 in)
220.7t15.7 N
5. VALVE SPRINGS
1) Check the valve springs for damage, free length,
and tension. Replace the valve spring if it is not
within specifications presented in the table.
2) To measure the squareness of the valve spring,
stand the spring on a surface plate and measure its
deflection at the top using a try square.
I 1 Valve spring I
Tensiontspring
height
(22.5 f 1.6 kgf, 49.6f3.5 lb)/36.0 mm
(1.41 7 in)
51 0.9f25.5 N
(52.1f2.6 kgf, 114.9f5.7 lb)/26.6 mm
(1.047 in)
I Squareness I 2.5", 2.0 mm (0.079 in) I
6. INTAKE AND EXHAUST VALVE OIL
SEAL
Replace the oil seal with a new one, if the lip is
damaged or spring out of place, or when the surfaces of intake valve and valve seat are reconditioned
or intake valve guide is replaced.
1) Place the cylinder head on ST1.
2) Press in the oil seal to the specified dimension
indicated in the figure by using ST2.
ST1 498267600 CYLINDER HEAD TABLE
ST2 498857100 VALVE GUIDE REMOVER
CAUTION:
Apply engine oil to oil seal before force-fitting.
Differentiate between the intake valve oil seal
and exhaust valve oil seal by noting their difference in color.
Color of rubber part:
Intake [Black]
Exhaust [Brown]
Color of spring part:
Intake [Silver]
Exhaust [Silver]
S2M1924A
ME(D0HC TURBO)-70
CYLINDER HEAD ASSEMBLY
MECHANICAL
7. VALVE LIFTER
1) Check the valve lifter visually.
2) Measure the outer diameter of valve lifter.
Outer diameter:
34.959 - 34.975 mm (1.3763 - 1.3770 in)
02M122;
3) Measure the inner diameter of valve lifter mating
part on cylinder head.
Inner diameter:
34.994 - 35.016 mm (1.3777 - 1.3786 in)
1400
CAUTION:
If difference between outer diameter of valve
lifter and inner diameter of valve lifter mating
part is over the limit, replace the cylinder head.
Standard:
0.019 - 0.057 mm (0.0007 - 0.0022 in)
Limit:
0.100 mm (0.0039 in)
ME(D0HC TURBO)-71
ia CYLINDER BLOCK
MECHANICAL
2O.Cylinder Block
A: REMOVAL
16) Remove the oil cooler.
NOTE:
Before conducting this procedure, drain the engine
oil completely if applicable.
1) Remove the intake manifold. TURBO)-1 5, REMOVAL, Intake Manifold.>
2) Remove the V-belt.
3) Remove the crankshaft pulley. ME(D0HC TURBO)-46, REMOVAL, Crankshaft
Pulley.>
4) Remove the belt cover. TURBO)-47, REMOVAL, Belt Cover.>
5) Remove the timing belt assembly. ME(D0HC TURBO)-48, REMOVAL, Timing Belt
Assembly .>
6) Remove the camshaft sprocket. ME(D0HC TURBO)-57, REMOVAL, Camshaft
Sprocket.>
7) Remove the crankshaft sprocket. ME(D0HC TURBO)-58, REMOVAL, Crankshaft
Sprocket.>
8) Remove the generator and A/C compressor with
their brackets.
9) Remove the cylinder head assembly. ME(D0HC TURBO)-64, REMOVAL, Cylinder
Head Assembly.>
10) Remove the clutch disc and cover. (MT vehicles) Cover. >
11) Remove the flywheel. (MT vehicles) CL-14, REMOVAL, Flywheel.>
12) Remove the drive plate. (AT vehicles)
Using the ST, lock crankshaft.
ST 498497100 CRANKSHAFT STOPPER
13)
14)
15)
I
Remove the oil separator cover.
Remove the water by-pass pipe for heater.
Remove the oil filter.
(a) Gasket
(b) Oil cooler
(c) Connector
17) Removal of oil pan:
(1) Turn the cylinder block with #2 and #4 piston
sides facing upward.
(2) Remove the bolts which secure oil pan to
cylinder block.
(3) Insert a oil pan cutter blade between cylinder block-to-oil pan clearance and remove the
oil pan.
CAUTION:
Do not use a screwdriver or similar tool in place
of oil pan cutter.
18) Remove the oil strainer stay.
19) Remove the oil strainer.
20) Remove the baffle plate.
21) Remove the water pipes.
22) Remove the water pump.
M E( DOH C TU R BO)-72
MECHANICAL
CYLINDER BLOCK
23) Remove the oil pump from cylinder block.
Use a flat-bladed screwdriver as shown in the figure when removing the oil pump.
CAUTION:
Be careful not to scratch the mating surface of
cylinder block and oil pump.
\\
S2M1819 I
EN029r
(1) Service hole plug
(2) Gasket
(3) Circlip
(4) Piston pin
(5) Service hole cover
(6) O-ring ~,
24) Remove the service hole cover and service
hole plugs using the hexagon wrench [14 mm (0.55
25) Rotate the crankshaft to bring #1 and #2 pistons to bottom dead center position, then remove
the piston circlip through service hole of #1 and #2 in)].
cylinders.
ME(D0HC TURBO)-73
CYLINDER BLOCK
MECHANICAL
26) Draw out the piston pin from #1 and #2 pistons 27) Similarly remove the piston pins from #3 and #4
using ST.
ST 499097700 PISTON PIN REMOVER
CAUTION:
Be careful not to confuse the original combination of piston, piston pin and cylinder.
I I
pistons.
28) Remove the bolts which connect cylinder block
on the side of #2 and #4 cylinders.
29) Back off the bolts which connect cylinder block
on the side of #1 and #3 cylinders two or three
turns.
30) Set up the cylinder block so that #1 and #3 cylinders are on the upper side, then remove the cylinder block connecting bolts.
31 ) Separate the left-hand and right-hand cylinder
blocks.
CAUTION:
When separating the cylinder block, do not allow the connecting rod to fall and damage the
cylinder block.
+ G2M0166
B2M2408r
(1) Cylinder block
(2) Rear oil seal
(3) Crankshaft
(4) Crankshaft bearing
(5) Piston
. . ,
32) Remove the rear oil seal.
33) Remove the crankshaft together with connecting rod.
34) Remove the crankshaft bearings from cylinder
block using a hammer handle.
CAUTION:
Do not confuse the combination of crankshaft
bearings.
Press the bearing at the end opposite to locking
lip.
35) Draw out each piston from cylinder block using
a wooden bar or hammer handle.
CAUTION:
Do not confuse the combination of piston and
cylinder.
ME(D0HC TURBO)-74
MECHANICAL
CYLINDER BLOCK
B: INSTALLATION
02M2407E
(1) Crankshaft bearing (4) Rear oil seal
(2) Crankshaft
(3) Cylinder block
CAUTION:
Remove oil in the mating surface of bearing and
cylinder block before installation. Also apply a
coat of engine oil to crankshaft pins.
1) Position the crankshaft on the #2 and #4 cylinder
block.
2) Apply fluid packing to the mating surface of #1
and #3 cylinder block, and position it on #2 and #4
cylinder block.
Fluid packing:
CAUTION:
Do not allow fluid packing to jut into O-ring
grooves, oil passages, bearing grooves, etc.
THREE BOND 1215 or equivalent
Tightening torque: N-m (kgf-m, ft-lb)
T1: 25 (2.5, 78.1)
T2: 47 (4.8, 34.7)
1
Is !M 1826A
ME(D0HC TURBO)-75
I
MECHANICAL
CYLINDER BLOCK
3) Temporarily tighten the 10 mm cylinder block
connecting bolts in alphabetical sequence shown in
the figure.
I B2M0088D I
4) Tighten the 10 mm cylinder block connecting
bolts in alphabetical sequence.
Tightening torque:
47 N.m (4.8 kgf-m, 34.7 ft-lb)
B2M0088D
5) Tighten the 8 mm and 6 mm cylinder block connecting bolts in alphabetical sequence shown in the
figure.
Tightening torque:
(A) - (G): 25 N-m (2.5 kgf-m, 18.1 ft-lb)
(H): 6.4 N-m (0.65 kgf-m, 4.7 ft-lb)
B2M0089F
6) Install the rear oil seal using ST1 and ST2.
ST1 499597100 OIL SEAL GUIDE
ST2 499587200 OIL SEAL INSTALLER
' ~ ' S2M1827A
(A) Rear oil seal
(B) Flywheel attaching bolt
7) Position the top ring gap at (A) or (B) in the figure.
180"
(B)
EN0304
8) Position the second ring gap at 180" on the reverse side for the top ring gap.
9) Position the upper rail gap at (C) or (D) in the figure.
EN0305
10) Position the expander gap at 180" of the reverse side for the upper rail gap.
ME( DOHC TU RB0)-76
MECHANICAL
CYLINDER BLOCK
11) Position the lower rail gap at (E) or (F) in the figure.
CAUTION:
Ensure ring gaps do not face the same direction.
Ensure ring gaps are not within the piston
skirt area.
EN0305
12) Installing the circlip:
Install the circlips in piston holes located opposite
of the service holes in cylinder block, when positioning all pistons in the corresponding cylinders.
CAUTION:
Use new circlips.
B2M1403A
Front side #2
CAUTION:
Piston front mark faces towards the front of the
engine.
(A) Front mark
(1) Piston
(2) Piston pin
(3) Circlip
(4) Gasket
(5) Service hole plug
Tightening torque: N.m (kgf-m, ft-lb)
T: 69 (7.0, 50.6)
ME(D0HC TURBO)-77
CYLINDER BLOCK
MECHANICAL
13) Installing the piston:
(1) Turn the cylinder block so that #1 and #2 cylinders face upward.
(2) Using ST1, turn the crankshaft so that #1
and #2 connecting rods are set at bottom dead
center.
(3) Apply a coat of engine oil to the pistons and
cylinders and insert pistons in their cylinders using ST2.
ST1 499987500 CRANKSHAFT SOCKET
ST2 498744300 PISTON GUIDE
14) Installing piston pin:
(1) Insert ST3 into service hole to align piston
pin hole with connecting rod small end.
CAUTION:
Apply a coat of engine oil to ST3 before insertion.
ST3 499017100 PISTON PIN GUIDE
(2) Apply a coat of engine oil to the piston pin
and insert piston pin into piston and connecting
rod through service hole.
(3) Install the circlip.
CAUTION:
Use new circlips.
S2M 1828
(4) Apply fluid packing around the service hole
Plug.
Fluid packing:
THREE BOND 1215 or equivalent
B2M2625
(5) Install the service hole plug and gasket.
CAUTION:
Use a new gasket.
ME(D0HC TURBO)-78
a MECHANICAL
CYLINDER BLOCK
(1) Piston
(2) Piston pin
(3) Circlip
(5) Service hole plug Tightening torque: N.m (kgf-m, ft-lb)
(6) Service hole cover T1: 6.4 (0.65, 4.7)
(7) O-ring T2: 69 (7.0, 50.6)
(4) Gasket
(6) Turn the cylinder block so that #3 and #4 cylinders face upward. Using the same procedures
as used for #1 and #2 cylinders, install the pistons and piston pins.
15) Install the water pipe.
16) Install the baffle plate.
Tightening torque:
6.4 N.m (0.65 kgf-m, 4.7 ff-lb)
17) Install the oil strainer and O-ring
Tightening torque:
10 N-m (1.0 kgf-m, 7 ff-lb)
18) Install the oil strainer stay.
19) Apply fluid packing to matching surfaces
install the oil pan.
Fluid packing:
THREE BOND 1215 or equivalent
S2M 1833A
and
ME( DOHC TURBO)-79
CYLINDER BLOCK
MECHANICAL
20) Apply fluid packing to matching surfaces and
install the oil separator cover.
Fluid packing:
THREE BOND 1215 or equivalent
(2) Apply fluid packing to the matching surface
of oil pump.
Fluid packing:
THREE BOND 1215 or equivalent
S2M1 R34A
21) Install the drive plate. (AT vehicles)
To lock the crankshaft, use ST.
ST 4984971 00 CRANKSHAFT STOPPER
Tightening torque:
72 N.m (7.3 kgf-m, 52.8 ft-lb)
22) Install the flywheel. (MT vehicles)
23) Install the clutch disc and cover. (MT vehicles)
Cover.>
24) Installation of oil pump:
(1) Discard the front oil seal after removal. Replace with a new one using ST.
ST 499587100 OIL SEAL INSTALLER
M0235
L J L J B2M03908
(A) O-ring
(3) Apply a coat of engine oil to the inside of the
oil seal.
I . I
1
S2M0118B
W &
(4) Install the oil pump on cylinder block. Be
careful not to damage the oil seal during installation.
6.4 N.m (0.65 kgf-m, 4.7 ft-lb)
Tightening torque:
CAUTION:
Do not forget to install the O-ring and seal
when installing the oil pump.
Align the flat surface of oil pump's inner rotor
with crankshaft before installation.
ME(D0HC TURBO)-80
II
MECHANICAL
CYLINDER BLOCK
25) Install the water pump and gasket.
Tightening torque:
First; 12 N-m (1.2 kgf-m, 8.7 ft-16)
Second; 12 N.m (1.2 kgf-m, 8.7 ff-16)
CAUTION:
Be sure to use a new gasket.
When installing the water pump, tighten bolts
in two stages in alphabetical sequence as
shown in the figure.
H2M1846D
26) Install the water by-pass pipe for heater.
27) Install the oil cooler.
Tightening torque:
T I : 55 N-m (5.5 kgf-m, 40 ft-16)
T2: 69 N-m (7.0 kgf-m, 50.6 ff-16)
(A) O-ring
(B) Oil cooler
(C) Connector
28) Install the oil filter using ST.
ST 498547000 OIL FILTER WRENCH
29) Install the water by-pass pipe between oil cooler and water pump.
30) Install the water pipe.
NOTE:
Always use a new O-ring.
31) Install the cylinder head assembly. ME(D0HC TURBO)-64, INSTALLATION, Cylinder
Head Assembly.>
32) Install the oil level gauge guide and tighten the
attaching bolt (left side only).
33) Install the rocker cover.
34) Install the crankshaft sprocket. ME(D0HC TURBO)-58, INSTALLATION, Crankshaft Sprocket.>
35) Install the camshaft sprocket. ME( DOHC TU RBO)-57, INSTALLATION, Cam-
shaft Sprocket.>
36) Install the timing belt assembly. ME(D0HC TURBO)-50, INSTALLATION, Timing
Belt Assembly.>
37) Install the belt cover.
38) Install the crankshaft pulley. ME(D0HC TURBO)-46, INSTALLATION, Crankshaft Pulley.>
39) Install the generator and A/C compressor
brackets on cylinder head.
40) Install the V-belt.
41) Install the intake manifold. TURBO)-1 5 , REMOVAL, Intake Manifold.>
ME(D0HC TURBO)-81
CYLINDER BLOCK
MECHANICAL
C: DISASSEMBLY
I
B2M13201
(1) Connecting rod cap (3) Top ring
(2) Connecting rod bearing (4) Second ring
1) Remove the connecting rod cap.
2) Remove the connecting rod bearing.
CAUTION:
Arrange the removed connecting rod, connecting rod cap and bearing in order to prevent confusion.
3) Remove the piston rings using the piston ring expander.
4) Remove the oil ring by hand.
CAUTION:
Arrange the removed piston rings in proper order to prevent confusion.
5) Remove the circlip.
(5) Oil ring
(6) Circlip
ME(D0HC TURBO)-82
MECHANICAL
CYLINDER BLOCK
D: ASSEMBLY
(1) Connecting rod bearing (5) Second ring
(2) Connecting rod (6) Top ring
(3) Connecting rod cap (7) Circlip
(4) Oil ring
1) Install the connecting rod bearings on connecting rods and connecting rod caps.
CAUTION:
Apply oil to the surfaces of the connecting rod
bearings.
2) Install the connecting rod on crankshaft.
CAUTION:
Position each connecting rod with the side
marked facing forward.
3) Install the connecting rod cap with connecting
rod nut.
Ensure the arrow on connecting rod cap faces the
front during installation.
CAUTION :
Each the connecting rod has its own mating
cap. Make sure that they are assembled correctly by checking their matching number.
When tightening the connecting rod nuts, apply oil on the threads.
4) Install the oil ring spacer, upper rail and lower rail
in this order by hand. Then install the second ring
and top ring with a piston ring expander.
~~
Tightening torque: N.m (kgf-m, ft-lb)
T: 44.6 (4.55, 32.9)
E: INSPECTION
1. CYLINDER BLOCK
1) Visually check for cracks and damage. Especially, inspect the important parts by means of red lead
check.
2) Check the oil passages for clogging.
3) Inspect the crankcase surface that mates with
cylinder head for warping by using a straight edge,
and correct by grinding if necessary.
Warping limit:
Grinding limit:
Standard height of cylinder block:
0.05 mm (0.0020 in)
0.1 mm (0.004 in)
201.0 mm (7.91 in)
ME(D0HC TURBO)-83
CYLINDER BLOCK
MECHANICAL
2. CYLINDER AND PISTON
1) The cylinder bore size is stamped on the cylinder
block’s front upper surface.
CAUTION:
Measurement should be performed at a temperature of 20°C (68°F).
NOTE:
Standard sized pistons are classified into two
grades, “ A and “B”. These grades should be used
as a guide line in selecting a standard piston.
Standard diameter:
A: 92.005 - 92.01 5 mm (3.6222 - 3.6226
in)
B: 91.995 - 92.005 mm (3.6218 - 3.6222
in)
(E)
H2M1732C
(A) Main journal size mark
(B) Cylinder block RH-LH combination mark
(C) #1 cylinder bore size mark
(D) #2 cylinder bore size mark
(E) #3 cylinder bore size mark
(F) #4 cylinder bore size mark
2) How to measure the inner diameter of each cylinder:
Measure the inner diameter of each cylinder in both
the thrust and piston pin directions at the heights
shown in the figure, using a cylinder bore gauge.
CAUTION:
Measurement should be performed at a temperature of 20°C (68°F).
Taper:
Standard
Limit
0.015 mm (0.0006 in)
0.050 mm (0.0020 in)
Out-o f-roundness:
Standard
Limit
0.010 mm (0.0004 in)
0.050 mm (0.0020 in)
FlO (0.39)
45 (1.77)
80 (3.15)
115 (4.53)
W
S2M1821A
Unit: mm (in)
(A) Piston pin direction
(B) Thrust direction
3) When the piston is to be replaced due to general
or cylinder wear, determine a suitable sized piston
by measuring the piston clearance.
ME(D0HC TURBO)-84
MECHANICAL
CYLINDER BLOCK
4) How to measure the outer diameter of each piston:
Measure the outer diameter of each piston at the
height shown in the figure. (Thrust direction)
CAUTION:
Measurement should be performed at a temperature of 20°C (68°F).
Piston grade point H:
37.0 mm (1.457 in)
Piston outer diameter:
Standard
A: 91.985 - 91.995 mm
(3.6214 - 3.6218 in)
B: 91.975 - 91.985 mm
(3.621 1 - 3.6214 in)
0.25 mm (0.0098 in) oversize
92.225-92.235"
(3.6309 - 3.6313 in)
0.50 mm (0.0197 in) oversize
92.475-92.485"
(3.6407 - 3.641 1 in)
6) Boring and honing:
(1) If the value of taper, out-of-roundness, or
cylinder-to-piston clearance measured exceeds
the specified limit or if there is any damage on
the cylinder wall, rebore it to use an oversize piston.
CAUTION:
When any of the cylinders needs reboring, all
other cylinders must be bored at the same time,
and use oversize pistons. Do not perform boring on one cylinder only, nor use an oversize
piston for one cylinder only.
(2) If the cylinder inner diameter exceeds the
limit after boring and honing, replace the crankcase.
CAUTION:
Immediately after reboring, the cylinder diameter may differ from its real diameter due to temperature rise. Thus, pay attention to this when
measuring the cylinder diameter.
Limit of cylinder enlarging (boring):
0.5 mm (0.020 in)
IJ B2M1305A
5) Calculate the clearance between cylinder and
piston.
CAUTION:
Measurement should be performed at a temperature of 20°C (68°F).
Cylinder to piston clearance at 20°C (68OF):
0.010 - 0.030 mm (0.0004 - 0.0012 in)
0.050 mm (0.0020 in)
Standard
Limit
ME(D0HC TU RBO)-85
CYLINDER BLOCK
3. PISTON AND PISTON PIN
cracks, and wear and the piston ring grooves for
wear and damage. Replace if defective.
4) Check the circlip installation groove on the piston
for burr (A). If necessary, remove burr from the '1 Check the pistons and piston pins for damage, groove so that the piston pin can lightly move.
2) Measure the piston-to-cylinder clearance at
each cylinder. CYLINDER AND PISTON, INSPECTION, Cylinder
Block.> If any of the clearances is not within specification, replace the piston or bore the cylinder to
use an oversize piston.
3) Make sure that the piston pin can be inserted into
the piston pin hole with a thumb at 20°C (68°F). Replace if defective.
(A),
B2M0420E I ~~ ~
5) Check the piston pin circlip for distortion, cracks
and wear.
Standard clearance between piston pin and
hole in piston:
Standard
0.004 - 0.008 mm (0.0002 - 0.0003 in)
0.020 mm (0.0008 in)
Limit
B2M1401
B2M0084A
I Micrometer
ME(D0HC TURBO)-86
MECHANICAL
CYLINDER BLOCK I
Standard
0.20 - 0.35 Top ring
4. PISTON RING
1) If the piston ring is broken, damaged, or worn, or
if its tension is insufficient, or when the piston is replaced, replace the piston ring with a new one of
the same size as the piston.
CAUTION:
“N” is marked on the end of the top and second rings. When installing the rings to the piston, face this mark upward. +
Limit
1 .O (0.039)
“ N 3
I EN0330
The oil ring is a combined ring consisting of
two rails and a spacer in between. When installing, be careful to assemble correctly.
7 “N”
(A) Top ring
(6) Second ring
(C) Oil ring
(a) Upper rail
(b) Spacer
(c) Lower rail
2) Squarely place the piston ring and oil ring in cylinder, and measure the piston ring gap with a thickness gauge.
1 .O (0.039)
3) Measure the clearance between piston ring and
piston ring groove with a thickness gauge.
CAUTION:
Before measuring the clearance, clean the piston ring groove and piston ring.
Unit: mm (in)
Standard Limit
between piston ring and
groove ring 0.00281
B2M 1402
ME(D0HC TURBO)-87
CYLINDER BLOCK
MECHANICAL
Bearing size
(Thickness at center)
5. CONNECTING ROO
1) Replace the connecting rod, if the large or small
end thrust surface is damaged.
2) Check for bend or twist using a connecting rod
aligner. Replace the connecting rod if the bend or
twist exceeds the limit.
Limit of bend or twist per 100 mm (3.94 in) in
length:
0.10 mm (0.0039 in)
Outer diameter of
crank pin
n B2M1184B
(A) Thickness gauge
(B) Connecting rod
3) Install the connecting rod fitted with bearing to
crankshaft and measure the side clearance (thrust
clearance). Replace the connecting rod if the side
clearance exceeds the specified limit.
Connecting rod side clearance:
Standard
Limit
0.070 - 0.330 mm (0.0028 - 0.0130 in)
0.4 mm (0.016 in)
4) Inspect the connecting rod bearing for scar,
peeling, seizure, melting, wear, etc.
5) Measure the oil clearance on individual connecting rod bearings by means of plastigauge. If any oil
clearance is not within specification, replace the
defective bearing with a new one of standard size
or undersize as necessary. (See the table below.)
Connecting rod oil clearance:
Standard
Limit
0.020 - 0.046 mm (0.0008 - 0.0018 in)
0.05 mm (0.0020 in)
I Unit: mm (in)
I Bearing
Standard
(0.001 2)
(0.0020)
undersize
undersize
(0.0098)
undersize
1.492 - 1.501 47.984 - 48.000
1.510-1.513 47.954 - 47.970
1.520 - 1.523 47.934 - 47.950
1.620 - 1.623 47.734 - 47.750
ME( DOH C TU R BO)-88
MECHANICAL
CYLINDER BLOCK
6) Inspect the bushing at connecting rod small end,
and replace if worn or damaged. Also measure the
piston pin clearance at the connecting rod small
end.
Clearance between piston pin and bushing:
Standard
Limit
0 - 0.022 mm (0 - 0.0009 in)
0.030 mm (0.0012 in)
ST
U
B2M0084
7) Replacement procedure is as follows:
(1) Remove the bushing from connecting rod
with ST and press.
(2) Press the bushing with ST after applying oil
on the periphery of bushing.
499037100 CONNECTING ROD BUSH-
ING REMOVER AND IN-
STALLER
(3) Make two 3 mm (0.12 in) holes in bushing.
Ream the inside of bushing.
(4) After completion of reaming, clean the bushing to remove chips.
6. CRANKSHAFT AND CRANKSHAFT
BEARING
1) Clean the crankshaft completely and check for
cracks by means of red lead check etc., and replace if defective.
2) Measure the crankshaft bend, and correct or replace if it exceeds the limit.
CAUTION:
If a suitable V-block is not available, install #1
and #5 crankshaft bearing on cylinder block,
position crankshaft on these bearings and measure the crankshaft bend using a dial gauge.
Crankshaft bend limit:
0.035 mm (0.0014 in)
3) Inspect the crank journal and crank pin for wear.
If they are not within the specifications, replace the
bearing with a suitable (undersize) one, and replace or recondition crankshaft as necessary.
When grinding the crank journal or crank pin, finish
them to the specified dimensions according to the
undersize bearing to be used.
Crank pin and crank journal:
Out-o f-roundness
Taper limit
Grinding limit
0.020 mm (0.0008 in) or less
0.07 mm (0.0028 in)
0.250 mm (0.0098 in)
G2M0179
ME(D0HC TURBO)-89
CYLINDER BLOCK
MECHANICAL
#1, #3, #5 #2, #4
Unit: mm (in)
Standard
0.03 (0.0012)
undersize
0.05 (0.0020)
undersize
59.992 - 60.008
(2.361 9 - 2.3625) Journal O.D.
I
59.992 - 60.008
(2.3619 - 2.3625)
47.984 - 48.000
(1.8891 - 1.8898)
0.25 (0.0098)
undersize
Bearing size
(Thickness at center)
1.998 - 2.01 1
(0.0787 - 0.0792)
2.000 - 2.01 3 1.492-1.510
(0.0787 - 0.0793) (0.0587 - 0.0591)
59.962 - 59.978
(2.3607 - 2.361 3)
2.01 7 - 2.020
(0.0794 - 0.0795)
Journal O.D.
Bearing size
(Thickness at center)
59.962 - 59.978
(2.3607 - 2.361 3)
47.954 - 47.970
(1.8879 - 1.8886)
2.019 - 2.022 1.510- 1.513
(0.0795 - 0.0796) (0.0594 - 0.0596)
59.942 - 59.958
(2.3599 - 2.3605)
2.027 - 2.030
(0.0798 - 0.0799)
Journal O.D.
Bearing size
(Thickness at center)
59.942 - 59.958
(2.3599 - 2.3605)
2.029 - 2.032
(0.0799 - 0.0800)
47.934 - 47.950
(1.8872 - 1.8878)
1.520 - 1.523
(0.0598 - 0.0600)
O.D.: Outer Diameter
4) Measure the thrust clearance of crankshaft at
center bearing. If the clearance exceeds the limit,
replace the bearing.
Crankshaft thrust clearance:
Standard
Limit
0.030 - 0.115 mm (0.0012 - 0.0045 in)
0.25 mm (0.0098 in)
59.742 - 59.758
(2.3520 - 2.3527)
59.742 - 59.758
(2.3520 - 2.3527) Journal O.D.
Bearing size
(Thickness at center)
2.127-2.130 2.129 - 2.132
(0.0837 - 0.0839) (0.0838 - 0.0839)
EN0341 I
5) Inspect individual crankshaft bearings for signs
of flaking, seizure, melting, and wear.
47.734 - 47.750
(1.8793 - 1.8799)
1.620 - 1.623
(0.0638 - 0.0639)
6) Measure the oil clearance on each crankshaft
bearing by means of plastigauge. If the measurement is not within the specification, replace the defective bearing with an undersize one, and replace
or recondition the crankshaft as necessary.
Standard
I Unit: mm fin) I
0.01 0 - 0.030 (0.0004 -
0.001 2)
I Limit I 0.040 (0.0016) I
ME(D0HC TURBO)-90
Starter Defective battery-to-starter harness
Defective starter switch
Defective inhibitor switch or neutral switch
B
C
C
Run-down battery
Defective charging system
Seizure of crankshaft and connecting rod bearing
Seized camshaft
A
B
C
C
Loosened cylinder head bolts or defective gasket
Improper valve seating
Defective valve stem
C
C
C
I Improper engine oil (low viscosity)
Engine control system
Intake system Defective intake manifold gasket
Defective throttle bodv aasket
B
A
B
B
Compression

Incorrect valve clearance C
Loosened spark plugs or defective gasket C
Loosened cylinder head bolts or defective gasket C
Defective valve stem
Worn or broken valve spring
Worn or stuck piston rinas. cvlinder and piston
C
B
C
ENGINE TROUBLE IN GENERAL
MECHANICAL
21 .Engine Trouble in General
A: INSPECTION
NOTE: A - Very often
“RANK’ shown in the chart refers to the possibility
of reason for the trouble in order (“Very often” to
“Rarely”)
B - Sometimes
C - Rarely
PROBLEM PARTS, ETC. I POSSIBLE CAUSE I RANK TROUBLE
1. Engine will not start.
1) Starter does not turn.
1 Defective starter I B
I Poor terminal connection I A Battery
Friction
I Seized or stuck piston and cylinder I C
~~
2) Initial combustion does
not occur.
Starter 1 Defective starter I C
Engine control system 1 A
Fuel line Defective fuel pump and relay
Lack of or insufficient fuel
I A
I B
I I
Belt I Defective I B
I Defective timina I B
Compression I Incorrect valve clearance I C
1 Loosened spark plugs or defective gasket I C
F W o r n G broken valve sprina I B
I Worn or stuck piston rings, cylinder and piston I C
I Incorrect valve timing I B
3) Initial combustion occur.
~~
Fuel line I Defective fuel pump and relay I C
1 Clogged fuel line I C
I Lack of or insufficient fuel I B
Belt Defective I B
Defective timina I B
I Improper valve seating I C
I.lncorrect v a G timina I B
I Improper engine oil (low viscosity) I B
ME(D0HC TURBO)-91
ENGINE TROUBLE IN GENERAL
MECHANICAL
Intake system Loosened or cracked intake duct
Loosened or cracked PCV hose
Loosened or cracked vacuum hose
TROUBLE
4) Engine stalls after initial
combustion.
2. Rough idle and engine
stall
B
C
C
PROBLEM PARTS, ETC. I POSSIBLE CAUSE I RANK
Engine control system I A
Fuel line
Belt
Dirty air cleaner element C
Clogged fuel line C
Lack of or insufficient fuel B
Defective B
Defective timina B
I I Defective intake manifold aasket I B
I Improper engine oil (low viscosity)
Engine control system
I Defective throttle body gasket I B
B
A
Fuel line
Compression
Loosened oil filler cap
Dirty air cleaner element
Defective fuel Dump and relav
B
C
C
I Incorrect valve clearance I C
Incorrect valve clearance
Loosened spark plugs or defective gasket
Loosened cvlinder head bolts or defective aasket
I Loosened spark plugs or defective gasket I C
B
B
B
I Loosened cylinder head bolts or defective gasket I C
Stuck or damaged throttle valve
Accelerator cable out of adjustment
Improper valve seating I C
Defective valve stem I C
B
C
I
I B I Worn or broken valve sprina
I Worn or stuck piston rings, cylinder and piston I C
I Incorrect valve timing I B
Intake system Loosened or cracked intake duct
Loosened or cracked PCV hose
/ A
/ A
I Loosened or cracked vacuum hose I A
I Defective intake manifold gasket I B
Defective throttle body gasket I B
Defective PCV valve I C
I Clogged fuel line I C
I Lack of or insufficient fuel I B
Belt I Defective timing I C
Compression
I Improper valve seatina I B
I Defective valve stem I C
1 Worn or broken valve spring I B
I Worn or stuck piston rings, cylinder and piston I B
Incorrect valve timing ] A
ImDroDer enaine oil (low viscositv) I B
Lubrication system I Incorrect oil pressure -1 --B
I Defective rocker cover gasket I C
Cooling system I Overheating I C
Others I Malfunction of evaporative emission control system I A
ME(D0HC TURBO)-92
PROBLEM PARTS, ETC. I POSSIBLE CAUSE
Engine control system
RANK
A
Defective PCV valve
Loosened oil filler cap
Dirty air cleaner element
Defective fuel Dump and relav
B
B
A
B
Defective timing
Incorrect valve clearance
Loosened spark plugs or defective gasket
Loosened cvlinder head bolts or defective aasket
B
B
B
B
~~
Incorrect oil pressure I B
Worn or broken valve spring
Worn or stuck piston rings, cylinder and piston
Incorrect valve timing
Improper enaine oil (low viscositv)
B
C
A
B
~
Cooling system Overheating I C
Over coolina I C
Others
Engine control system
I Malfunction of evaporative emission control system
Intake system Loosened or cracked intake duct
Loosened or cracked PCV hose
A
A
A
A
Fuel line
Defective throttle body gasket B
Defective PCV valve B
Loosened oil filler cap B
Dirty air cleaner element B
Defective fuel pump and relav B
Belt
Compression
Lack of or insufficient fuel C
Defective timing B
Incorrect valve clearance B
Loosened spark Dluas or defective aasket C
ENGINE TROUBLE IN GENERAL
MECHANICAL
Intake system Loosened or cracked intake duct
Loosened or cracked PCV hose
I A
/ A
FLoosened or cracked vacuum hose I B
I Defective intake manifold gasket I B
I Defective throttle body gasket I B
Fuel line
1 Cloaaed fuel line I B
I Lack of or insufficient fuel I C
Belt
Compression
I Improper valve seating I B
I Defective valve stem I C
Lubrication svstem
I Loosened or cracked vacuum hose I A
I Defective intake manifold gasket I B
1 Clogged fuel line I B
1 Loosened cylinder head bolts or defective gasket I C
I Improper valve seating I C
Defective valve stem
Worn or broken valve spring
Worn or stuck piston rings, cylinder and piston
Incorrect valve timing A
Improper enaine oil (low viscositv) B
~~
Coolina svstem I Overheating
Others I Malfunction of evaporative emission control system I C
ME(D0HC TURB0)-93
ENGINE TROUBLE IN GENERAL
MECHANICAL
7. After burning in exhaust
system
TROUBLE I PROBLEM PARTS, ETC. I POSSIBLE CAUSE I RANK
5. Enaine does not return to I Enaine control svstem I A
1
Engine control system
Intake system
A
C I Loosened or cracked intake duct
I idle.
Loosened oil filler cap
Defective timing
Incorrect valve clearance
* , I * I
Intake system I Loosened or cracked vacuum hose I A
C
B
B
I I Others 1 Stuck or damaaed throttle valve A 1
Worn or broken valve spring
Worn or stuck piston rings, cylinder and piston
Incorrect valve timing
I I I I I -
C
C
A
I Accelerator cable out of adjustment I B
A 6. Dieseling (Run-on) I Engine control system I
8. Knocking
I 1 I
~~
Others
Engine control system
I Malfunction of evaporative emission control system C
A
Intake system I Loosened oil filler cap B
I I Cooling system I Overheating I B I
Overheating
Loosened or cracked PCV hose
Defective PCV valve
I Others I Malfunction of evaoorative emission control svstem I B 1
A
A
B
Loosened oil pump attaching bolts and defective
gasket
Defective oil filter o-rina
I I I Loosened or cracked PCV hose I C 1
B
B
I I I I I
I I I Loosened or cracked vacuum hose
I I I
I I Defective PCV valve
I I I Loosened spark pluns or defective nasket I C 1
I I I . - - I I
I I I Loosened cylinder head bolts or defective gasket I C I
I I I I
I I I Improper valve seating I B I
I I I 4
I I I Defective valve stem I C 1
I I Lubrication system I Incorrect oil pressure I C 1
I I I
I I Cooling system I Over cooling I C 1
I I Belt I Defective timina I B I
I I I I I -
9. Excessive engine oil consumption
Compression
Cooling system
Intake system
Compression
Lubrication system
Incorrect valve clearance I C
Incorrect valve timing I B
I C Loosened oil filler cap
Defective valve stem I A
Worn or stuck piston rings, cylinder and piston I A
Defective crankshaft oil seal I B
Defective rocker cover gasket I B
Loosened oil drain plug or defective gasket I B
Loosened oil pan fitting bolts or defective oil pan I B
ME(D0HC TURBO)-94
ENGINE TROUBLE IN GENERAL
MECHANICAL
TROUBLE
10. Excessive fuel consumpPROBLEM PARTS, ETC. 1 POSSIBLE CAUSE RANK
Engine control system A
I tion I Intake svstem I Dirtv air cleaner element I A I
Belt Defective timing B
Compression Incorrect valve clearance B
-
Loosened spark plugs or defective gasket C
Loosened cylinder head bolts or defective gasket C
Improper valve seating B
Defective valve stem C
Worn or broken valve spring C
Worn or stuck piston rings, cylinder and piston B
Incorrect valve timing 6
Lubrication system Incorrect oil pressure C
Cooling system Over cooling C
Others Accelerator cable out of adjustment B
ME(D0HC TURBO)-95
ENGINE NOISE
Type of sound
MECHANICAL
Condition
22.Engine Noise
A: INSPECTION
Heavy and dull clank
High-pitched clank (Spark
knock)
Clank when engine speed is
medium (1,000 to 2,000 rpm).
Oil pressure is low.
Oil pressure is normal.
Sound is noticeable when
accelerating with an overload.
Sound is reduced when fuel
injector connector of noisy cylinder is disconnected.
(NOTE9
Sound increases as engine
speed increases. Regular clicking sound
Knocking sound when engine
is operating under idling speed
and engine is warm
Sound is reduced when fuel
injector connector of noisy cylinder is disconnected.
(NOTE*)
Sound is not reduced if each
fuel injector connector is disconnected in turn. (NOTE*)
Gear scream when starting
Sound like polishing glass with
engine
a dry cloth
- Squeaky sound I
-
-
- Rubbing sound I
Hissing sound
~
Timing belt noise Valve tappet noise
NOTE*:
Possible cause
Valve mechanism is defective.
Incorrect valve clearance
Worn valve rocker
Worn camshaft
Broken valve sDrina
Worn crankshaft main bearing
Worn connecting rod bearing (big end)
Loose flywheel mounting bolts
Damaaed enaine mountina
~~ ~~ ~
Ignition timing advanced
Accumulation of carbon inside combustion chamber
Wrong spark plug
Improper gasoline
Worn crankshaft main bearing
Worn bearing at crankshaft end of connecting rod
Worn cylinder liner and piston ring
Broken or stuck piston ring
Worn piston pin and hole at piston end of connecting rod
Unusually worn valve lifter
Worn cam gear
Worn camshaft journal bore in crankcase
Insufficient generator lubrication
Defective generator brush and rotor contact
Defective ignition starter switch
Worn pear and starter pinion
Loose drive belt
Defective water pump shaft
Loss of compression
Air leakage in air intake system, hoses, connections or manifolds
Loose timing belt
Belt contacting case/adjacent part
Incorrect valve clearance
When disconnecting the fuel injector connector, Malfunction Indicator Light (CHECK ENGINE light) illuminates and trouble code
is stored in ECM memory.
Therefore, carry out the CLEAR MEMORY MODE and
INSPECTION MODE after connecting the fuel injector connector.
ME(D0HC TURBO)-96
EXHAUST
EX(D0HC TURBO)
Page
.................................................................................... 1 . General Description 2
Front Exhaust Pipe ...................................................................................... 6
Joint Pipe .................................................................................................. 12 3 -
2 .
3 .
4 .
Center Exhaust Pipe ................................................................................... 8
5 . Rear Exhaust Pipe .................................................................................... 13
6 . Muffler ....................................................................................................... 14
GENERAL DESCRIPTION
EXHAUST
1 General Description
A: COMPONENT
1. FRONT EXHAUST PIPE
EN1 183
EX(D0HC TURBO)-2
GENERAL DESCRIPTION
EXHAUST
Gasket
Upper exhaust manifold cover
(RH)
Exhaust manifold (RH)
Lower exhaust manifold cover
(RH)
Front exhaust pipe upper clamp
Front exhaust pipe upper cover
Front exhaust pipe upper insulator
(RH)
Front exhaust pipe upper insulator
(LH)
Gasket
Front exhaust pipe
Front exhaust pipe lower insulator
Front exhaust pipe lower insulator
Front exhaust pipe lower cover
Front exhaust pipe lower clamp
Gasket
Gasket
Upper exhaust manifold cover
(LH)
Exhaust manifold (LH)
Lower exhaust manifold cover
Gasket
(RH)
(LH)
(LH)
(21) Turbocharger joint pipe
(22) Gasket
(23) Front oxygen (NF) sensor
(24) Precatalytic converter
(25) Exhaust temperature sensor
Tightening torque: N.m (kgf-m, ft-lb)
T1: 19 (1.9, 13.7)
T2: 25 (2.5, 18.1)
T3: 35 (3.6, 26.0)
T4: 40 (4, 28.9)
EX(D0HC TURB0)S
GENERAL DESCRIPTION
EXHAUST
2. CENTER AND REAR EXHAUST PIPE, AND MUFFLER
L 4
I \
EN1113
Gasket
Front catalytic converter
Upper center pipe cover (Front)
Center exhaust pipe (Front)
Lower center pipe cover (Front)
Bracket
Gasket
Upper center pipe cover (Rear)
Lower center pipe cover (Rear)
Upper rear catalytic converter
cover
Lower clamp
Lower rear catalytic converter
cover
Rear oxygen sensor
Rear catalytic converter
Upper clamp
Gasket
Rear exhaust pipe
Lower rear exhaust pipe cover
(Front)
Chamber
Lower rear exhaust pipe cover
(Rear)
Cushion
Spring
Bolt
Upper rear exhaust pipe cover
(Front)
(25) Upper rear exhaust pipe cover
(Rear)
(26) Gasket
(27) Muffler
(28) Cushion
(29) Muffler cutter
(30) Center exhaust pipe (Rear)
Tightening torque: N.m (kgf-m, ft-lb)
T1: 13 (1.3, 9.6)
T2: lS(1.8, 13.0)
T3: 30 (3.1, 22.4)
T4: 35 (3.6, 26.0)
T5: 48 (4.9, 35.4)
EX(D0HC TURBO)-4
GENERAL DESCRIPTION
EXHAUST
B: CAUTION
Wear working clothing, including a cap, protective goggles, and protective shoes during operation.
Remove contamination including dirt and corrosion before removal, installation or disassembly.
Keep the disassembled parts in order and protect them from dust or dirt.
Before removal, installation or disassembly, be
sure to clarify the failure. Avoid unnecessary removal, installation, disassembly, and replacement.
Be careful not to burn your hands, because each
part on the vehicle is hot after running.
Be sure to tighten fasteners including bolts and
nuts to the specified torque.
Place shop jacks or safety stands at the specified
points.
Before disconnecting electrical connectors of
sensors or units, be sure to disconnect the negative
terminal from battery.
EX(D0HC TURBO)-5
~ FRONT EXHAUST PIPE
EXHAUST
2. Front Exhaust Pipe
A: REMOVAL
1 ) Disconnect the ground terminal from battery.
2) Remove the front oxygen (NF) sensor. FU(D0HC TURBO)-42, REMOVAL, Front Oxygen
(NF) Sensor.>
3) Remove the under cover.
4) Remove the lower exhaust manifold cover (RH).
5) Remove the lower and upper exhaust manifold
covers (LH).
6) Remove the bolts and nuts which hold the front
exhaust pipe assembly to turbocharger joint pipe.
7) While holding the front exhaust pipe assembly
with one hand, remove the nuts which hold the front
exhaust pipe assembly to cylinder head exhaust
port.
0
0 0 0 0
8) Remove the front exhaust pipe assembly.
9) Remove the covers from exhaust manifold and
front exhaust pipe.
10) Separate the front exhaust pipe from exhaust
manifolds.
B: INSTALLATION
CAUTION:
Replace the gaskets with new ones.
1) Assemble the front exhaust pipe and exhaust
manifolds.
Tightening torque:
35 N.m (3.6 kgf-m, 26.0 ff-lb)
-
G2M0854
2) Install the front exhaust pipe covers.
Tightening torque:
3) Install the upper exhaust manifold cover (RH).
Tightening torque:
4) Install the front exhaust pipe assembly.
Tightening torque:
25 N.m (2.5 kgf-m, 78.7 ff-lb)
79 N-m (1.9 kgf-m, 73.7 ff-lb)
35 N-m (3.6 kgf-m, 26.0 ff-lb)
EX(D0HC TURBO)-6
FRONT EXHAUST PIPE
lls
EXHAUST
5) Connect the exhaust manifold (RH) to turbocharger joint pipe.
Tightening torque:
35 N-m (3.6 kgf-m, 26.0 ft-lb)
6) Install the upper and lower exhaust manifold
covers (LH).
Tightening torque:
7) Install the lower exhaust manifold cover (RH).
Tightening torque:
79 N-m (7.9 kgf-m, 73.7 ff-lb)
79 N*m (7.9 kgf-m, 73.7 ft-lb)
8) Install the front oxygen (NF) sensor. FU(D0HC TURBO)-43, INSTALLATION, Front
Oxygen (NF) Sensor.>
9) Install the under cover.
10) Connect the battery ground terminal to battery.
5
EX(D0HC TURBO)-7
CENTER EXHAUST PIPE
EXHAUST
3. Center Exhaust Pipe
A: REMOVAL
1) Set the vehicle on the lift.
2) Disconnect the ground terminal from battery.
3) Remove the intercooler. TURBO)-1 0, REMOVAL, Intercooler.>
4) Remove the intercooler bracket.
5) Lift-up the vehicle.
6) Remove the under cover.
7) Remove the bolts which install the lower side of
turbocharger upper cover.
CAUTION:
Be careful, the turbocharger and exhaust pipe
are hot.
10) Remove the bolts which install the lower upper
side of turbocharger upper cover, and remove it.
11) Separate the center exhaust pipe from turbocharger.
12) Lift-up the vehicle.
13) Disconnect the connector from rear oxygen
sensor.
8) Lower the vehicle.
9) Remove the turbocharger upper cover.
14) Vertically draw out clip from crossmember.
S2M2254 I
EX(D0HC TURBO)-8
m EXHAUST
CENTER EXHAUST PIPE
15) Separate the center exhaust pipe from rear exhaust pipe.
' I I G2M085E
16) Remove the bolt which holds center exhaust
pipe bracket to transmission.
17) Remove the intercooler bracket.
18) Remove the bolt which holds center exhaust
pipe to hanger bracket.
CAUTION:
Be careful not to pull down the center exhaust
pipe.
19) Remove the center exhaust pipe.
B: INSTALLATION
CAUTION:
Replace the gaskets with new ones.
1) Install the center exhaust pipe and temporarily
tighten the bolt which holds center exhaust pipe to
hanger bracket.
2) Temporarily tighten the bolt which holds the center pipe to transmission.
3) Connect the center exhaust pipe to turbocharger.
Tightening torque:
35 N-m (3.6 kgf-m, 26.0 ft-lb)
4) Install the center exhaust pipe to rear exhaust
pipe.
Tightening torque:
18 N-m (1.8 kgf-m, 13.0 ft-lb)
I ' I G2M0855 I
5) Connect the connector to rear oxygen sensor.
EX(D0HC TURBO)-9
CENTER EXHAUST PIPE
EXHAUST
6) Secure clip on the crossmember.
I I S2M2254
7) Tighten the bolt which holds the center exhaust
pipe bracket to transmission.
Tightening torque:
30 N-m (3.1 kgf-m, 22.4 ff-lb)
8) Tighten the bolt which holds the center exhaust
pipe to hanger bracket.
Tightening torque:
35 N-m (3.6 kgf-m, 26.0 ff-lb)
9) Tighten the bolts which hold the intercooler
bracket .
Tightening torque:
10) Lower the vehicle.
35 N-m (3.6 kgf-m, 26.0 ff-lb)
11) Place the turbocharger lower cover, and tighten
the bolts which install the upper side of lower cover.
Tightening torque:
7.4 N.m (0.75 kgf-m, 5.4 ff-lb)
12) Place the turbocharger upper cover, and tighten the bolts which install the upper side of upper
cover.
Tightening torque:
7.4 Nom (0.75 kgf-m, 5.4 ff-lb)
13) Lift-up the vehicle.
14) Tighten the bolts which install the under side of
turbocharger upper cover.
Tightening torque:
7.4 N-m (0.75 kgf-m, 5.4 ff-lb)
15) Install the under cover.
16) Lower the vehicle.
EX(D0HC TURBO)-I 0
CENTER EXHAUST PIPE
EXHAUST
17) Install the intercooler bracket.
18) Install the intercooler.
EX(D0HC TURBO)-1 1
I
JOINT PIPE
EXHAUST
4. Joint Pipe
A: REMOVAL
1 ) Disconnect the ground terminal from battery
2) Remove the solenoid valve cover.
3) Disconnect the exhaust temperature sensor connector.
4) Remove the front oxygen (NF) sensor. FU(D0HC TURBO)-42, REMOVAL, Front Oxygen
(NF) Sensor.>
5) Remove the under cover.
6) Remove the lower exhaust manifold cover (RH).
7) Remove the nuts which hold the front exhaust
manifold to joint pipe.
8) Remove the center exhaust pipe. EX(D0HC TURBO)-8, REMOVAL, Center Exhaust
Pipe.>
9) Remove the turbocharger. TURBO)-12, REMOVAL, Turbocharger.>
10) Take off the joint pipe in the upward direction.
B: INSTALLATION
Install in the reverse order of removal.
Tightening torque:
T: 35 N-m (3.6 kgf-m, 26.0 ff-lb)
EX(D0HC TURBO)-12
REAR EXHAUST PIPE
EXHAUST
5. Rear Exhaust Pipe
A: REMOVAL
1) Disconnect the ground terminal from battery.
2) Lift up the vehicle.
3) Separate the rear exhaust pipe from center exhaust pipe.
CAUTION:
Be careful, the exhaust pipe is hot.
4) Separate the rear exhaust pipe from muffler.
CAUTION:
Be careful not to pull down the rear exhaust
pipe.
~~
5) Remove the rear exhaust pipe.
B: INSTALLATION
CAUTION:
Replace the gaskets with new ones.
1) Install the rear exhaust pipe to muffler.
Tightening torque:
48 N.m (4.9 kgf-m, 35.4 ft-lb)
2) Install the rear exhaust pipe to center exhaust
pipe.
Tightening torque:
18 N-m (1.8 kgf-m, 13.0 ft-lb)
3) Lower the vehicle.
4) Connect the battery ground terminal to battery.
C: INSPECTION
1) Make sure there are no exhaust leaks from connections and welds.
2) Make sure there are no holes or rusting.
3) Make sure the cushion rubber is not worn or
cracked.
EX(D0HC TURBO)-13
MUFFLER
EXHAUST
6. Muffler
A: REMOVAL
1) Separate the muffler from rear exhaust pipe.
CAUTION:
Be careful, the exhaust pipe is hot.
2) Remove the rubber cushions, and detach muffler.
CAUTION:
Be careful not to drop the muffler during removal.
NOTE:
To facilitate removal, apply a coat of SUBARU
CRC to the mating area of rubber cushions in advance.
SUBA RU CRC (Part No. 00430 1003)
I I EN089
B: INSTALLATION
1) Install in the reverse order of removal.
CAUTION:
Replace the gasket with a new one.
Tightening torque:
48 N.m (4.9 kgf-m, 35.4 ft-lb)
C: INSPECTION
1) Make sure there are no exhaust leaks from connections and welds.
2) Make sure there are no holes or rusting.
3) Make sure the cushion rubber is not worn or
cracked.
EX(D0HC TURBO)-14
IGNITION
IG(D0HC TURBO)
Page
1 .
2. Spark Plug ................................................................................................... 4
3.
General Description .................................................................................... 2
Ignition Coil and Ignitor Assembly ............................................................... 8
GENERAL DESCRIPTION
IGNITION
1. General Description
A: SPECIFICATIONS
Spark plug
I / ~ Item I Designation I
Thread size mm 14, P = 1.25
Spark gap mm (in) 0.7 - 0.8 (0.028 - 0.031)
and ignitor I Manufacturer I assemblv DIAMOND
1 TvDe and manufacturer I PFRGG: NGK I
IG(D0HC TURBO)-2
IGNITION
GENERAL DESCRIPTION
B: COMPONENT
EN085:
El (1) Spark plug
(2) Ignition coil and ignitor ASSY
C: CAUTION
Wear working clothing, including a cap, protective goggles, and protective shoes during operation.
Remove contamination including dirt and corrosion before removal, installation or disassembly.
Keep the disassembled parts in order and protect them from dust or dirt.
Before removal, installation or disassembly, be
sure to clarify the failure. Avoid unnecessary removal, installation, disassembly, and replacement.
Tightening torque: N-m (kgf-m, ft-lb)
T l : 21 (2.1, 15)
T2: 16 (1.6, 11.7)
Be careful not to burn your hands, because each
part on the vehicle is hot after running.
Be sure to tighten fasteners including bolts and
nuts to the specified torque.
Place shop jacks or safety stands at the specified
points.
Before disconnecting electrical connectors of
sensors or units, be sure to disconnect the negative
terminal from battery.
IG(D0HC TURBO)-3
SPARK PLUG
I
IGNITION
2. Sparkplug
A: REMOVAL
CAUTION:
All spark plugs installed on an engine, must be
of the same heat range.
Spark plug:
1. RH SIDE
1 ) Disconnect the ground terminal from battery.
NGK: PFRGG
2) Remove the air cleaner lower case. IN(D0HC TURBO)-7, REMOVAL, Air Cleaner.>
3) Disconnect the connector from ignition coil.
EN0854
5) Remove the spark plugs with the spark plug
sockets.
2. LH SIDE
1) Disconnect the battery terminals, and then remove the battery and battery carrier.
2) Disconnect the washer motor connector
4) Remove the ignition coil.
3) Disconnect the rear window glass washer hose
from washer motor, then plug connection with a
suitable cap.
EN0855 I
IG(D0HC TURBO)-4
SPARK PLUG
IGNITION
4) Remove the two bolts which hold the washer
tank, then take the tank away from the working area.
5) Disconnect the connector from ignition coil.
6) Remove the ignition coil.
7) Remove the spark plug with the spark plug sockets.
.
EN0859
B: INSTALLATION
1. RH SIDE
1) Install in the reverse order of removal.
Tightening torque (Spark plug):
21 N-m (2.1 kgf-m, 15 ft-lb)
Tightening torque (Ignition coil):
16 N.m (1.63 kgf-m, 11.8 fi-lb)
CAUTION:
The above torque should be only applied to
new spark plugs without oil on their threads.
In case their threads are lubricated, the torque
should be reduced by approximately 1/3 of the
specified torque in order to avoid over-stressing.
2. LH SIDE
1) Install in the reverse order of removal.
Tightening torque (Spark plug):
21 N.m (2.1 kgf-m, 15 ft-lb)
Tightening torque (Ignition coil):
16 N-m (1.63 kgf-m, 11.8 ft-lb)
CAUTION:
The above torque should be only applied to
new spark plugs without oil on their threads.
In case their threads are lubricated, the torque
should be reduced by approximately 1/3 of the
specified torque in order to avoid over-stressing.
IG(D0HC TURBO)+
SPARK PLUG
IGNITION
C: INSPECTION
Check the electrodes and inner and outer porcelain
of plugs, noting the type of deposits and the degree
of electrode erosion.
( E ,
S6M0420A
(A) Electrode gap
(B) Carbon accumulation or wear
(C) Cracks
(D) Damage
(E) Damaged gasket
1) Normal:
Brown to grayish-tan deposits and slight electrode
wear indicate correct spark plug heat range.
3M0087
2) Carbon fouled:
Dry fluffy carbon deposits on insulator and electrode are mostly caused by slow speed driving in
city, weak ignition, too rich fuel mixture, dirty air
cleaner, etc.
It is advisable to replace with plugs having hotter
heat range.
3) Oil fouled:
Wet black deposits show excessive oil entrance
into combustion chamber through worn rings and
pistons or excessive clearance between valve
guides and stems. If the same condition remains
after repair, use a hotter plug.
G6M0089
4) Overheating:
White or light gray insulator with black or gray
brown spots and bluish burnt electrodes indicate
engine overheating. Moreover, the appearance results from incorrect ignition timing, loose spark
plugs, wrong selection of fuel, hotter range plug,
etc. It is advisable to replace with plugs having
colder heat range.
G6M009C
IG(D0HC TURBO)-6
IGNITION
SPARK PLUG
D: ADJUSTMENT
Clean the spark plugs in a sand blast type cleaner.
Avoid excessive blasting. Clean and remove the
carbon or oxide deposits, but do not wear away
porcelain.
If deposits are too stubborn, replace the plugs.
After cleaning the spark plugs, recondition the firing
surface of electrodes with file. Then correct the
spark plug gap using a gap gauge.
Spark plug gap: L
0.7 - 0.8 mm (0.028 - 0.031 in)
S6M0412A
NOTE:
Replace with a new spark plug if this area is worn to
“ball” shape.
IG(D0HC TURBOJ-7
IGNITION COIL AND IGNITOR ASSEMBLY
IGNITION
3. Ignition Coil and Ignitor Assembly
A: REMOVAL
Direct ignition type has been adopted.
Refer to the “Spark Plug Removal” for removal procedure.
B: INSTALLATION
Install in the reverse order of removal.
Tightening torque:
76 N-m (7.63 kgf-m, 7 7.8 ft-lb)
C: INSPECTION
Ignitor is integrated with the coil. Therefore resistance cannot be measured.
IG(D0HC TURBO)-8
ENGINE (DIAGNOSTICS)
EN(D0HC TURBO)
1 .
2 .
3 .
4 .
5 .
6 .
7 .
8 .
9 .
10 .
11 .
12 .
13 .
14 .
15 .
16 .
17 .
18 .
19 .
Page
Basic Diagnostic Procedure ........................................................................ 2
Check List for Interview ............................................................................... 4
General Description .................................................................................... 6
Electrical Components Location .................................................................. 9
Engine Control Module (ECM) I/O Signal ................................................. 26
Engine Condition Data .............................................................................. 30
Data Link Connector ................................................................................. 35
OBD-ll General Scan Tool ........................................................................ 36
Subaru Select Monitor ............................................................................... 38
Read Diagnostic Trouble Code ................................................................. 45
Inspection Mode ........................................................................................ 46
Clear Memory Mode .................................................................................. 49
Engine Malfunction Indicator Lamp (MIL) ................................................. 52
Diagnostics for Engine Starting Failure ..................................................... 63
List of Diagnostic Trouble Code (DTC) ..................................................... 80
Diagnostic Procedure with Diagnostic Trouble Code (DTC) ..................... 88
Transmission Control Module (TCM) I/O Signal ....................................... 32
Compulsory Valve Operation Check Mode ............................................... 50
General Diagnostic Table ........................................................................ 372
I
BASIC DIAGNOSTIC PROCEDURE
ENGINE (DIAGNOSTICS)
1. Basic Diagnostic Procedure
A: PROCEDURE
1. ENGINE
Yes
Go to step 2.
Go to step 3.
Record the diagnostic trouble
code. Repair the
trouble cause.
TURBO)-80, List
of Diagnostic Trouble Code (DTC).r
Go to step 4.
Inspect using
“Diagnostics Procedure with Diagnostic Trouble
Code (DTC)”.
TURBO)-88, Diagnostic Procedure
with Diagnostic
Trouble Code
I D T C b
~
Step
CHECK ENGINE START FAILURE.
1)Ask the customer when and how the trouble
occurred using the interview check list. EN(D0HC TURBO)-4, CHECK, Check List for
Interview.>
2)Start the engine.
No Inspection using
“Diagnostics for
Engine Start Failure”. EN(D0HC
TURBO)-63, Diagnostics for Engine
Starting Failure.>
Inspection using
“General Diagnostics Table”. to EN(D0HC
General Diagnostic Table.>
Repair the related
parts.
NOTE:
If DTC is no
shown on displa!
although the MIL il
luminates, per
form diagnostics o
MIL (CHECK EN
GINE malfunctior
indicator lamp) cir
cuit or combinatior
meter. EN(D0HC TUR
BO)-52, Engint
Malfunction Indica
tor Lamp (MIL).>
Complete the
diagnosis.
TURBO)-372,
I CHECK ILLUMINATION OF CHECK ENGINE
MALFUNCTION INDICATOR LAMP (MIL).
I CHECK INDICATION OF DTC ON DISPLAY.
1)Turn the ignition switch to OFF.
2)Connect the Subaru Select Monitor or the
OBD-ll general scan tool to data link connector.
3)Turn the ignition switch to ON and the Subaru Select Monitor or OBD-I1 general scan tool
switch to ON.
4)Read the DTC on the Subaru Select Monitor
or OBD-ll general scan tool.
I PERFORM THE DIAGNOSIS.
1)Perform the clear memory mode. EN(D0HC TURBO)-49, Clear Memory Mode.:
2)Perform the inspection mode. EN(D0HC TURBO)-46, Inspection Mode.>
Check
)oes the engine start?
)oes CHECK ENGINE malJnction indicator lamp illumilate?
)oes the Subaru Select Moni3r or OBD-II general scan tool
idicate DTC?
Ioes the Subaru Select Monior or OBD-ll general scan tool
ndicate DTC?
EN(D0HC TURBO)-2
BASIC DIAGNOSTIC PROCEDURE
ENGINE (DIAGNOSTICS)
~ ~
2. AUTOMATIC TRANSMISSION
When the trouble code about automatic transmission is shown on display, carry out the following basic check. After that, carry out the replacement or
repair work.
1) ATF level check
2) Differential gear oil level check Differential Gear Oil.>
3) ATF leak check
4) Differential gear oil leak check Differential Gear Oil.>
5) Stall test
6) Line pressure test Test.>
7) Transfer clutch pressure test Transfer Clutch Pressure Test.>
8) Time lag test
9) Road test
10) Shift characteristics Clutch Pressure Test.>
EN(D0HC TURBO)-3
CHECK LIST FOR INTERVIEW
ENGINE (DIAGNOSTICS)
Engine no.
Fuel brand
Odometer reading
2. Check List for Interview
A: CHECK
1. CHECK LIST NO. 1
km miles
Check the following items when problem has occu rred.
NOTE:
Use copies of this page for interviewing customers.
U ON/U OFF
Cl ON/U OFF
U ON/U OFF
U ON/U OFF
I Customer's name
Rear defogger U OND OFF
Radio U OND OFF
CD/Cassette U ON/U OFF
Car phone CI OND OFF
I Date of sale
Weather
Outdoor temperature
Engine speed
Vehicle speed
Driving conditions
I Headlight
I Blower
Front wiper
I Rear wiper
U Fine
0 Cloudy
U Rainy
U Snowy
U Various/Others:
0 Hot
U Warm
0 Cool
U Cold
U Highway
U Suburbs
U Inner city
U Uphill
U Downhill
0 Rough road
U Others:
U Cold
U Warming-up
U After warming-up
0 Any temperature
U Others:
MPH I
U ON/R OFF I CB I U O N D OFF
CI ON/U OFF
EN(D0HC TURBO)-4
CHECK LIST FOR INTERVIEW
ENGINE (DIAGNOSTICSI
2. CHECK LIST NO. 2 NOTE:
Check the following items about the vehicle's state Use copies of this page for interviewing customers.
when MIL turns on,
a) Other warning lights or indicators turn on. CI YesD No
2 Low fuel warning light
;I Charge indicator light
2 AT diagnostics indicator light
3 ABS warning light
3 Engine oil pressure warning light
b) Fuel level
Lack of gasoline: CI YesD No
Indicator Dosition of fuel aauae:
nntentional connectina or disconnectinq of harness connectors or spark plug cords: CI YesD No
What:
d) Intentional connecting or disconnecting of hoses: D YesD No
What:
e) Installing of parts other than genuine parts: CI Yes/CI No
What:
Where:
f) Occurrence of noise: D YesD No
From where:
What kind:
a) Occurrence of smell: CI YesD No
*From where:
What kind:
h) Intrusion of water into engine compartment or passenger compartment: CI YesD No
i) Troubles occurred
Q Engine does not start.
D Engine stalls during idling.
CI Engine stalls while driving.
Q Engine speed decreases.
Q Engine speed does not decrease.
CI Rough idling
0 Poor acceleration
CI Back fire
Q After fire
No shift
CI Excessive shift shock
EN(D0HC TURB0)d
GENERAL DESCRIPTION
ENGINE (DIAGNOSTICS)
3. General Description
A: CAUTION
1) Airbag system wiring harness is routed near the
engine control module (ECM), main relay and fuel
pump relay.
CAUTION:
All Airbag system wiring harness and connectors are colored yellow. Do not use electrical test equipment on these circuit.
Be careful not to damage the Airbag system
wiring harness when servicing the engine control module (ECM), transmission control module (TCM), main relay and fuel pump relay.
2) Never connect the battery in reverse polarity.
The ECM will be destroyed instantly.
The fuel injector and other part will be damaged
in just a few minutes more.
3) Do not disconnect the battery terminals while the
engine is running.
A large counter electromotive force will be generated in the generator, and this voltage may damage
electronic parts such as ECM, etc.
4) Before disconnecting the connectors of each
sensor and the ECM, be sure to turn OFF the ignition switch.
5) Poor contact has been identified as a primary
cause of this problem. To measure the voltage and/
or resistance of individual sensors or all electrical
control modules at the harness side connector, use
a tapered pin with a diameter of less than 0.64 mm
(0.025 in). Do not insert the pin more than 5 mm
(0.20 in) into the part.
6) Before removing the ECM from the located position, disconnect two cables on battery.
Otherwise, the the ECM may be damaged.
CAUTION:
When replacing the ECM, be careful not to use
the wrong spec. ECM to avoid any damage on
fuel injection system.
7) The connectors to each sensor in the engine
compartment and the harness connectors on the.
engine side and body side are all designed to be
waterproof. However, it is still necessary to take
care not to allow water to get into the connectors
when washing the vehicle, or when servicing the
vehicle on a rainy day.
8) Use ECM mounting stud bolts at the body head
grounding point when measuring voltage and resistance inside the passenger compartment.
9) Use engine grounding terminal or engine proper
as the grounding point to the body when measuring
voltage and resistance in the engine compartment.
10) Use TCM mounting stud bolts at the body head
grounding point when measuring voltage and resistance inside the passenger compartment.
1666F
11) Every MFI-related part is a precision part. Do
not drop them.
EN(D0HC TURBO)-6
GENERAL DESCRIPTION
ENGINE (DIAGNOSTICS)
12) Observe the following cautions when installing
a radio in MFI equipped models.
CAUTION:
The antenna must be kept as far apart as possible from the control unit.
(The ECM is located under the steering column,
inside of the instrument panel lower trim panel.)
The antenna feeder must be placed as far
apart as possible from the ECM and MFI harness.
Carefully adjust the antenna for correct
matching.
When mounting a large power type radio, pay
special attention to the three items above mentioned.
Incorrect installation of the radio may affect
the operation of the ECM.
13) Before disconnecting the fuel hose, disconnect
the fuel pump connector and crank the engine for
more than five seconds to release pressure in the
fuel system. If engine starts during this operation,
run it until it stops.
14) Problems in the electronic-controlled automatic
transmission may be caused by failure of the engine, the electronic control system, the transmission proper, or by a combination of these. These
three causes must be distinguished clearly when
performing diagnostics.
15) Diagnostics should be conducted by rotating
with simple, easy operations and proceeding to
complicated, difficult operations. The most important thing in diagnostics is to understand the customer's complaint, and distinguish between the
three causes.
16) On ABS vehicle, when performing driving test
in jacked-up or lifted-up position, sometimes the
warning light may be lit, but this is not a malfunction
of the system. The reason for this is the speed difference between the front and rear wheels. After diagnosis of engine control system, perform the ABS
memory clearance procedure of self-diagnosis system.
B: INSPECTION
Before performing diagnostics, check the following
items which might affect engine problems:
1. BATTERY
1) Measure battery voltage and specific gravity of
electrolyte.
Standard voltage: 12 V
Specific gravity: Above 1.260
2) Check the condition of the main and other fuses,
and harnesses and connectors. Also check for
proper grounding.
2. ENGINE GROUNDING
Make sure the engine grounding terminal is properly connected to the engine.
145
C: NOTE
1. DESCRIPTION
The on-board diagnostics (OBD) system detects
and indicates a fault in various inputs and outputs
of the complex electronic control. CHECK ENGINE
malfunction indicator lamp (MIL) in the combination
meter indicates occurrence of a fault or trouble.
Further, against such a failure or sensors as may
disable the drive, the fail-safe function is provided
to ensure the minimal driveability.
The OBD system incorporated with the vehicles
within this engine family complies with Section
1968.1, California Code of Regulations (OBD-ll
regulation). The OBD system monitors the components and the system malfunction listed in Engine
Section which affects on emissions.
When the system decides that a malfunction occurs, MIL illuminates. At the same time of the MIL illumination or blinking, a diagnostic trouble code
(DTC) and a freeze frame engine conditions are
stored into on-board computer.
The OBD system stores freeze frame engine
condition data (engine load, engine coolant temperature, fuel trim, engine speed and vehicle
speed, etc.) into on-board computer when it detects
a malfunction first.
If the OBD system detects the various malfunctions including the fault of fuel trim or misfire, the
OBD system first stores freeze frame engine conditions about the fuel trim or misfire.
When the malfunction does not occur again for
three consecutive driving cycles, MIL is turned off,
but DTC remains at on-board computer.
The OBD-ll system is capable of communication
with a general scan tool (OBD-I1 general scan tool)
formed by IS0 9141 CARB.
EN(D0HC TURBO)-7
GENERAL DESCRIPTION
I
ENGINE (DIAGNOSTICS)
ILLUSTRATION
The OBD-II diagnostics procedure is different
from the usual diagnostics procedure. When troubleshooting OBD-ll vehicles, connect Subaru Select Monitor or the OBD-ll general scan tool to the
vehicle.
TEM
The Multipoint Fuel Injection (MFI) system is a
system that supplies the optimum air-fuel mixture
to the engine for all the various operating conditions through the use of the latest electronic technology.
With this system fuel, which is pressurized at a constant pressure, is injected into the intake air passage of the cylinder head. The injection quantity of
fuel is controlled by an intermittent injection system
where the electro-magnetic injection valve (fuel injector) opens only for a short period of time, deD: PREPARATION TOOL
2. ENGINE AND EMISSION CONTROL SYS-
TOOL NUMBER
24082AA150
(Newly adopted tool)
82M3876
82M3877
22771 AA030
pending on the quantity of air required for one cycle
of operation. In actual operation, the injection quantity is determined by the duration of an electric
pulse applied to the fuel injector and this permits
simple, yet highly precise metering of the fuel.
Further, all the operating conditions of the engine
are converted into electric signals, and this results
in additional features of the system, such as large
improved adaptability, easier addition of compensating element, etc.
The MFI system also has the following features:
Reduced emission of harmful exhaust gases.
Reduced in fuel consumption.
Increased engine output.
Superior acceleration and deceleration.
Superior startability and warm-up performance in cold weather since compensation is
made for coolant and intake air temperature.
DESCRIPTION
SARTRIDGE
SELECT MONITOR KIT
REMARKS
Troubleshooting for electrical
systems.
Troubleshooting for electrical
systems.
English: 22771AA030 (Without print er)
German: 22771 AA070
(Without printer)
French: 22771 AA080
(Without printer)
Spanish: 22771AA090
(Without printer)
EN(D0HC TURBO)-8
ELECTRICAL COMPONENTS LOCATION
ENGINE (DIAGNOSTICS)
4. Electrical Components Location
A: LOCATION
1. ENGINE
MODULE
(1) Engine control module (ECM) (3) Test mode connector
(2) CHECK ENGINE malfunction indi- (4) Data link connector
cator lamp (MIL)
B3M1575A
EN1 065
I
EN(D0HC TURBO)-9
ELECTRICAL COMPONENTS LOCATION
ENGINE (DIAGNOSTICS)
SENSOR
(1) Pressure sensor (4) Knock sensor (8) Tumble generator valve position
(2) Engine coolant temperature sen- (5) Camshaft position sensor sensor
sor (6) Crankshaft position sensor
(3) Throttle position sensor (7 ) Mass air flow and intake air temperature sensor
EN(D0HC TURBO)-IO
ENGINE (DIAGNOSTICS)
ELECTRICAL COMPONENTS LOCATION
\
EN1012
n EN1015
EN(D0HC TURBO)-I 1
ELECTRICAL COMPONENTS LOCATION
ENGINE (DIAGNOSTICS)
EN0948
(1) Front oxygen (NF) sensor (3) Exhaust temperature sensor (5) Rear oxygen sensor
(2) Precatalytic converter (4) Front catalytic converter (6) Rear catalytic converter
EN(D0HC TURBO)-12
ENGINE (DIAGNOSTICS)
ELECTRICAL COMPONENTS LOCATION
EN1017
EN(D0HC TURBO)-13
ELECTRICAL COMPONENTS LOCATION
ENGINE (DIAGNOSTICS)
(3) (4)
EN1067
(1) Fuel level sensor (3) Fuel tank pressure sensor
(2) Fuel temperature sensor (4) Fuel sub level sensor
H2M3207A B2M1807A
EN(D0HC TURBO)-14
ELECTRICAL COMPONENTS LOCATION
ENGINE (DIAGNOSTICS)
EN(D0HC TURBO)-15
~ ELECTRICAL COMPONENTS LOCATION
ENGINE (DIAGNOSTICS)
SOLENOID VALVE, ACTUATOR, EMISSION CONTROL SYSTEM PARTS AND IGNITION SYSTEM
PARTS
EN0951
(1) Wastegate control solenoid valve (3) Purge control solenoid valve (5) Tumble generator valve actuator
(2) Idle air control solenoid valve (4) Ignition coil
EN(D0HC TURBO)-1 6
m ELECTRICAL COMPONENTS LOCATION
ENGINE (DIAGNOSTICS)
,
(4) EN1 024
EN(D0HC TURBO)-17
ELECTRICAL COMPONENTS LOCATION
ENGINE (DIAGNOSTICS)
EN1 068
(1) Pressure control solenoid valve (3) Drain valve
(2) Canister (4) Drain filter
-
H2M2444A
SUBARU
EN(D0HC TURBO)-18
ELECTRICAL COMPONENTS LOCATION
ENGINE (DIAGNOSTICS)
EN(D0HC TURBO)-19
ELECTRICAL COMPONENTS LOCATION
ENGINE (DIAGNOSTICS)
(1) Fuel pump
(2) Main relay
(3) Fuel pump relay
(4) Fuel pump controller (7) Radiator sub fan relay 1
(5) Radiator main fan relay 1 (8) Radiator sub fan relay 2
(6) Radiator main fan relay 2 (9) Starter
EN(D0HC TURBO)-20
ELECTRICAL COMPONENTS LOCATION
EN G I N E ( D I AG NOSTl CS)
\
EN1191
- ( 9 )
EN1030
EN(D0HC TURBO)-21
ELECTRICAL COMPONENTS LOCATION
ENGINE (DIAGNOSTICS)
3
2. TRANSMISSION
Module
(1) Transmission Control Module (2) AT diagnostic indicator light (for AT
(TCM) (for AT vehicles) vehicles)
EN( DOHC TU RB0)-22
ELECTRICAL COMPONENTS LOCATION
ENGINE (DIAGNOSTICS)
Sensor
a (2) Vehicle speed sensor 2 (for MT vehicles)
(3) Vehicle speed sensor 2 (for AT vehicles)
(4) Torque converter turbine speed sensor (for AT vehicles)
(5) ATF temperature sensor (for AT vehicles)
(6) Brake light switch
EN(D0HC TURBO)-23
ELECTRICAL COMPONENTS LOCATION
ENGINE (DIAGNOSTICS)
Solenoid Valve And Switch (AT Vehicles)
( 8 ) (1’0) 02M2263A
(1) Dropping resistor
(2) Inhibitor switch
(3) Shift solenoid valve 1
(4) Shift solenoid valve 2
(5) Line pressure duty solenoid
(6) Lock-up duty solenoid
(7) Transfer duty solenoid
(8) 2-4 brake duty solenoid
(9) Low clutch timing solenoid valve
(10) 2-4 brake timing solenoid valve
Solenoid Valve And Switch (MT Vehicles)
2264A
(1) Neutral position switch
EN( DOHC TU RB0)-24
ELECTRICAL COMPONENTS LOCATION
ENGINE (DIAGNOSTICS)
EN(D0HC TURBO)-25
Ignition SW ON
lEnaine OFF)
Engine ON (Idling)
0 -7 - +7 Sensor output waveform
0
0
0
-7 - +7
0
0
Sensor output waveform
-
-
0 - 0 - 0.9
0-1.0 0-1.0
0-1.0 - 0- 1.0
1.0- 1.4 1 .o - 1.4 I After warm-up the engine.
0
O o r 5
0 After warm-up the engine.
“5” and “ 0 are repeatedly disDlaved when vehicle is driven. 0 or 5
ENGINE CONTROL MODULE (ECM) I/O SIGNAL
ENGINE (DIAGNOSTICS)
5. Engine Control Module (ECM) I/O Signal
A: ELECTRICAL SPECIFICATION
r To @ To @ To @
To a To @
EN0955
Signal (V)
nector nal No. Con- No. I Termi- Note Content
Signal (+) Crankshaft position sensor
Camshaft
position
sensor
- 0 I 0 I Signal (-)
Shield
Signal (+)
Signal (-)
Shield
- n I 0 I
Signal
Power
supply
GND(sensor)
B135
B135
Throttle
position
sensor
5 5
0 0
Rear oxygen sensor
Signal
Shield - n I 0 I
1
61 35 19 0 0 GND(sensor)
Front oxygen (W
sensor
heater
Signal 1
Signal 2 B137 5 0- 1.0 0- 1.0 +- Rear oxygen sensor heater signal Engine
coolant
B135 19
Vehicle speed signal
EN(D0HC TURBO)-26
ENGINE CONTROL MODULE (ECM) I/O SIGNAL
ENGINE (DIAGNOSTICS)
‘On- Terminal No.
No.
Content nector
Mass air Signal 684 13
flow sen- Shield 684 8
sor GND 684 7
Signal (V)
Note
Engine ON (Idling) Ignition SW ON
(Engine OFF)
-
- - 0.3 - 4.5
0 0
0 0
-
-
Ignition
control
#I
#2
#3
#4
13-14 Waveform B136 24 0
B136 23 0 13-14 Waveform
Waveform 6136 22 0 13-14
13-14 Waveform 6136 21 0
EN(D0HC TURBO)-27
Ignition SW ON
(Engine OFF)
10-13
Note
Engine ON (Idling)
1-14 Waveform
10- 13 1-14 Waveform
0 or 13- 14 0 or 13 - 14
ON: 0.5, or less
ON: 0.5, or less
OFF: 10- 13
OFF: 10- 13
- ON: 0.5, or less
ON: 0.5, or less
OFF: 13- 14
-
OFF: 13- 14
- Light “ON”: 1, or less
Liaht “OFF: 10 - 14
-
ON: 1, or less
OFF: 10 - 13
5
- ON: 1, or less
OFF: 13 - 14
5 -
2.5 - 3.8 Ambient temperature: 25°C
(75°F)
2.5 - 3.8
2.3 - 2.7
The value obtained after the
fuel filler cap was removed
once and recapped.
2.3 - 2.7
Less than 1 +-+ More
than 4
Less than 1 ++ More
than 4 Waveform
0.1 2 - 4.75
ON: 0
OFF: 10 - 13
ON: 0
OFF: 10- 13
- 0.12 - 4.75
ON: 0
OFF: 13 - 14
ON: 0
-
-
OFF: 13- 14
ENGINE CONTROL MODULE (ECM) I/O SIGNAL
ENGINE (DIAGNOSTICS)
Signal (V) Connector
No.
B137
B136
Terminal No.
1
6
Content
#1
#2 Fuel injector #3 B136 5
~
10- 13 I 1-14 I Wave f o i
#4 B136 4 10- 13 I 1-14 I Waveform
Idle air
control
solenoid
valve
Signal B136 10 Waveform
Fuel pump
controller
13 Signal 1
Signal 2
B134
B136 15
8137 27 A/C relay control
B137 17 Radiator fan relay 1
control
Radiator fan relay 2
control
Malfunction indicator
lamp
1 With A/C vehicles only ON: 0.5, or less 1 ON: 0.5, or less OFF: 10 - 13 OFF: 13 - 14 B137
B137
28
15
Engine speed output B136 9 - I 0 - 13, or more I Waveform
Purge control solenoid
valve
Toraue control 1 sianal
B137
B134
16
19
Toraue control 2 sianal B134 18 5 1 - 5
B136 14 8 8 I Torque control cut sig- nal
Fuel temperature sensor B135 6
Signal Fuel tank 15
pressure
sensor 1- B134 19 0 0 I sor)
Fuel tank pressure control solenoid valve B137 22 I - ON: 1, or less ON: 1, or less OFF: 10 - 13 1 OFF: 13-14
B137 ON: 1, or less - I ON: 1, or less OFF: 10- 13 I OFF:13-14 Drain valve
AT diagnosis input signal
11
20 B135
B135
B135
AT load signal 28 - I 0.9 - 1.4 4.3 - 4.4 I
8 1.7 - 2.4 I 1.1 -1.6 I Signal
B135 9 I I - 5 5 Power Pressure sensor ~ I I
0 0 B135
B135
19
25 Fuel level sensor
Small light switch B134 17
Blower fan switch B134 9
Rear defogger switch ON: 0 ON: 0
OFF: 10- 13 I OFF:13-14 I B134
B135
3
24 Power steering oil pres- sure switch
- ON: 0 10- 13 OFF: 13 - 14
EN(D0HC TURBO)-28
ENGINE CONTROL MODULE (ECM) I/O SIGNAL
ENGINE (DIAGNOSTICS1
GND (ignition system)
GND (power supply)
GND (control systems)
- 6136 18 0 0
6136 17 0 0
6134 22 0 0
61 34 7 0 0
6134 15 0 0
-
-
-
-
GND (oxygen sensor
heater 1)
GND (oxygen sensor
heater 2)
EN(D0HC TURBO)-29
- 9 0 0
8 0 0
B1 37
B1 37 -
ENGINE CONDITION DATA
ENGINE (DIAGNOSTICS)
6. Engine Condition Data
A: ELECTRICAL SPECIFICATION
Content
Engine load
Specified data
1.6 - 2.9 (%): Idling
6.4 - 12.8 (%): 2,500 rpm racing
Measuring condition:
After engine is warmed-up.
Gear position is in neutral position. (MT vehicle)
Gear position is in “N” or “P” position. (AT vehicle)
A/C is turned OFF.
All accessory switches are turned OFF.
EN(D0HC TURBO)-30
ENGINE (DIAGNOSTICS)
ENGINE CONDITION DATA
EN(D0HC TURBO)-31
Measuring conditions
Resistance to
body (ohms) Voltage (V)
-
Select lever in “P range
Select lever in any other than
“P” ranae (exceDt “N” ranae)
Less than 1
More than 8
-
a- . .
Brake pedal depressed.
Brake pedal released.
Light ON
Liaht OFF
- More than 10.5
Less than 1
Less than 1
More than 9
-
TRANSMISSION CONTROL MODULE (TCM) I/O SIGNAL
ENGINE (DIAGNOSTICS)
7. Transmission Control Module (TCM) I/O Signal
A: ELECTRICAL SPECIFICATION
S2M2131
NOTE:
Check with ignition switch ON.
Content nal No. nector
I
856 I 1 lanition switch OFF I 10-13 I - Back-up power supply
Ignition power supply
Ignition switch ON (with
enaine OFF)
10-13 l - B54 24
“P” range
switch
1 855
855
I Select lever in “N” range I Less than 1
“N” range
switch
14 I - 1 Morethan8 Select lever in any other than “N” ranae (exceDt “P” ranael - *- - I . , I ( I
Select lever in ‘W ranae I Less than 1 “
-
More than 8 Select lever in any other than “ R ranae
“R” range
switch
“D” range
switch
3 855
B55
I Select lever in “D” range I Less than 1
Inhibitor
switch
4 I - Select lever in any other than I “D” ranae Morethan 8 ., I I
Select lever in “ 3 ranae I Less than 1
I
-
More than 8 Select lever in any other than
“ 3 range
“3” range
switch
“2” range
switch
B55 5
Select lever in “2” range I Less than 1
I - I Morethan 8 Select lever in any other than “2” ranae “ I
Select lever in “1” ranae I Less than 1
“1 ” range
switch
~
Select lever in any other than
“1” ranae
More than 8 I B55 I 12 Brake switch
AT OIL TEMP warning light B56 1 11
EN(D0HC TURBO)-32
TRANSMISSION CONTROL MODULE (TCM) I/O SIGNAL
E NG I N E (D I AG N OSTl CS)
Measuring conditions Voltage (V)
Terminal No. Content nector
Resistance to
body (ohms)
Throttle position sensor Approx. 0.5
Throttle fully closed.
Throttle fully open. Approx. 4.3
. 5.0 lanition switch ON (With
3
-
I 854 -
-
supply
2.9 - 4.0 ATF temperature 20°C
ATF temperature sensor
2.1 -2.9 k
I 854 I 0.5 - 0.8 ATF temperature 80°C 11
Rear vehicle speed sensor
275 - 375
Front vehicle speed sensor I 855
Vehicle stopped.
Torque converter turbine
speedsensor
Vehicle speed output signal
0
Engine speed signal
24
855
. . I
450 - 650 Vehicle speed at least 20 More than (AC
km/h (12 MPH)
Cruise set signal
Torque control signal 1
Vehicle stopped. 0
18 Vehicle speed at least 20 More than (AC range)
km/h (12 MPH)
Engine idling after warm-up. n
Torque control signal 2
Torque control cut signal
Shift solenoid 1 854
450 - 650
Shift solenoid 2
17
l7 I 854
- I
Vehicle speed at most 10
km/h (6 MPH)
Ignition switch ON (with
engine OFF)
Ignition switch ON (with
engine ON)
Less than It
+More than 5
0
8-11
Ignition switch ON (with More than 4.8 5
Lock-up duty solenoid -c
-
Transfer duty solenoid
More than 4.8 Ignition switch ON (with
engine ON)
1 st or 4th gear
2nd or 3rd gear
14
10 Ignition switch ON 8
22 -
More than 9
Less than 1
I 854
-
-
10-16
2-4 brake duty solenoid
~
1 st or 2nd gear
3rd or 4th gear
Throttle fully closed (with
engine OFF) after warm-up.
Throttle fully open (with
engine OFF) after warm-up.
When lock up occurs.
When lock up is released.
Fuse on FWD switch
Fuse removed from FWD
More than 9
Less than 1
~ 5
1.5 - 5.0
Less than 0.5
More than 8.5
Less than 0.5
More than 8.5
9
7
I 854
10-16
2.0 - 4.5
10-17
Line pressure duty solenoid 854
Approx 2 1 - engine OFF) I
Less than 0.5 6 switch (with throttle fully
open and with select lever in
1 st gear).
Throttle fully closed (with
engine OFF) after warm-up.
Throttle fully open (with
engine OFF) after warm-up.
1.5 - 5.0
'
Less than 0.5
10-17
2.0-4.5
v (D range)
- Engine idling after warm-up.
(N ranoe)
More than 1 (AC range)
450 - 650
1 - I
Less than 1 When cruise control is set
fSET lamD ON) - 22
More than 6.5 When cruise control is not
set (SET lamD OFF)
EN(D0HC TURBO)-33
TRANSMISSION CONTROL MODULE (TCM) I/O SIGNAL I
ENGINE (DIAGNOSTICS)
Connector
No.
Content Resistance to
body (ohms) Voltage (V)
Terminal No. Measuring conditions
More than 8.5 Throttle fully closed (with engine OFF) after warm-up. a- I E ;
"I YVT I , w I W
Less than 0.5 Throttle fully open (with engine OFF) after warm-up.
1 st gear Less than 1
3rd clear More than 9
Low clutch timing solenoid
EN(D0HC TURBO)-34
I "
2nd gear Less than 1
4th Clear More than 9
854 15 10- 16
Sensor ground line 1 1 854 1 19 I - 0 I Lessthan 1
Sensor ground line 2 I 855 I 9 1 - 0 I Lessthan 1
856
854
System ground line - 0 Less than 1 19
20
AT diagnosis signal - Less than 1 t + More than 4 856 21 Ignition switch ON
- Data link signal (Subaru 15 I DATA LINK CONNECTOR
ENGINE (DIAGNOSTICS)
8. Data Link Connector
A: NOTE
1) This connector is used both for OBD-II general scan tools and the Subaru Select Monitor.
2) Terminal No. 4 to No. 6 of the data link connector is used for the Subaru Select Monitor signal.
CAUTION:
Do not connect any scan tools other than the OBD-ll general scan tools and the Subaru Select Monitor, because the circuit for the Subaru Select Monitor may be damaged.
Terminal No.
1
2
3
4
H2M1280
Contents Terminal No. Contents
Power supply 9 Blank
Blank 10 K line of IS0 9141 CARB
Blank 11 Blank
Blank 12 Ground
5 I Blank 13 I Ground
6 I Line end check signal 1
EN(D0HC TURBO)-35
14 I Blank
7 Blank 15
8 Line end check signal 2 16
Blank
Blank
OBD-II GENERAL SCAN TOOL
ENGINE (DIAGNOSTICS)
01 I Number of emission-related Dowertrain trouble codes and MIL status
9. OBD-Il General Scan Tool
A: OPERATION
ONIOFF
1. HOW TO USE OBD-II GENERAL SCAN
TOOL
04 I Calculated engine load value
1) Prepare a general scan tool (OBD-II general
scan tool) required by SAE J1978.
2) Open the cover and connect the OBD-II general
scan tool to the data link connector located in the
lower portion of the instrument panel (on the driver's side).
Y O
3) Using the OBD-II general scan tool, call up diagnostic trouble code(s) and freeze frame data.
OBD-II general scan tool functions consist of:
(1) MODE $01 : Current powertrain diagnostic
data
(2) MODE $02: Powertrain freeze frame data
(3) MODE $03: Emission-related powertrain diagnostic trouble codes
(4) MODE $04: Clear/Reset emission-related
diagnostic information
Read out data according to repair procedures. (For
detailed operation procedures, refer to the OBD-II
General Scan Tool Operation Manual.)
NOTE:
For details concerning diagnostic trouble codes, refer to the List of Diagnostic Trouble Code (DTC).
Trouble Code (DTC).>
05 I Engine coolant temperature
2. MODE $01 (CURRENT POWERTRAIN
"C
DIAGNOSTIC DATA)
07 I Long term fuel trim %
I - I 03 I Fuel svstem control status I
OB I Intake manifold absolute Dressure kPa
I 06 I Short term fuel trim I % I
OE
OF
10
11
13
Ignition timing advance
Intake air temperature "C
Air flow rate from pressure sensor
Throttle valve opening angle %
Check whether oxvaen sensor is installed.
0
glsec
-
I OC I Enaine revolution I rDm I
l5 24
I OD I Vehicle speed I kmlh I
V and Yo
V and Yo
Oxygen sensor output voltage and short term fuel trim associated with oxygen sensor-bank
2
A/F sensor 1 output voltage and short term fuel trim associated with A/F sensor 1
1 C I On-board diagnosis system NOTE:
Refer to OBD-II general scan tool manufacturer's instruction manual to access generic OBD-II PlDs (MODE
$01 ).
EN(D0HC TURBO)-36
OBD-II GENERAL SCAN TOOL
ENGINE (DIAGNOSTICS)
3. MODE $02 (POWERTRAIN FREEZE FRAME DATA)
Refers to data denoting the operating condition when trouble is sensed by the on-board diagnosis system.
A list of the support data and PID (Parameter Identification) codes are shown in the following table.
I PID I Data I Unit of measure I
02
03
04
05
06
Trouble code that caused CARB required freeze frame data storage
Fuel system control status Calculated engine load value %
Engine coolant temperature "C
-
Short term fuel trim O/O
r- 07 I Long term fuel trim I Yo I
OB
OC
OD
Intake manifold absolute pressure kPa
Engine revolution r Pm
Vehicle speed km/h
NOTE:
Refer to OBD-II general scan tool manufacturer's instruction manual to access freeze frame data (MODE
$02).
4. MODE $03 (EMISSION-RELATED POWERTRAIN DIAGNOSTIC TROUBLE CODE)
Refer to Read Diagnostic Trouble Code for information about data denoting emission-related powertrain diagnostic trouble codes.
Refers to the mode used to clear or reset emission-related diagnostic information (OBD-II trouble diagnostic
information).
NOTE:
Refer to OBD-II general scan tool manufacturer's instruction manual to clear or reset emission-related diagnostic information (MODE $04).
5. MODE $04 (CLEAR/RESET EMISSION-RELATED DIAGNOSTIC INFORMATION)
EN(D0HC TURBO)-37
SUBARU SELECT MONITOR
ENG IN E (DIAGNOSTICS)
1O.Subaru Select Monitor
A: OPERATION
TOR
1) Prepare the Subaru Select Monitor kit. General Description.>
1. HOW TO USE SUBARU SELECT MONI-
EN(D0HC TURBO)-8, PREPARATION TOOL,
2) Connect the diagnosis cable to Subaru Select
Monitor.
3) Insert the cartridge into Subaru Select Monitor.
TOOL, General Description.>
4) Connect the Subaru Select Monitor to data link
connector.
( 1 ) Data link connector located in the lower portion of the instrument panel (on the driver's
side).
(2) Connect the diagnosis cable to data link
connector.
CAUTION:
Do not connect scan tools except for Subaru
Select Monitor and OBD-ll general scan tool.
5) Turn the ignition switch to ON (engine OFF) and
Subaru Select Monitor switch to ON.
I 52M0288 I
6) Using the Subaru Select Monitor, call up diagnostic trouble code(s) and various data, then
record them.
2. READ DIAGNOSTIC TROUBLE CODE
(DTC) FOR ENGINE. (NORMAL MODE)
Refer to Read Diagnostic Trouble Code for information about how to indicate DTC. EN(D0HC TURBO)-45, Read Diagnostic Trouble
Code.>
3. READ DIAGNOSTIC TROUBLE CODE
(DTC) FOR ENGINE. (OBD MODE)
Refer to Read Diagnostic Trouble Code for information about how to indicate DTC. EN(D0HC TURBO)-45, Read Diagnostic Trouble
Code.>
EN( DOHC TU RB0)-38
SUBARU SELECT MONITOR
ENGINE (DIAGNOSTICS)
Contents
Battery voltage
Vehicle speed Sianal
4. READ CURRENT DATA FOR ENGINE. (NORMAL MODE)
1) On the <
2) On the &ystem Selection Menu), display screen, select the {Engine Control System} and press the [YES]
key.
3) Press the [YES] key after displayed the information of engine type.
4) On the < key.
5) On the < 6) Using the scroll key, move the display screen up or down until the desired data is shown.
A list of the support data is shown in the following table.
Display Unit of measure
Battery Voltage V
Vehicle Speed km/h or MPH
Ignition timing signal
Throttle position signal
Throttle position signal
Injection pulse width
Idle air control sianal
Enaine speed sianal 1 Engine Speed I rpm
~~
Ignition Timing deg
Throttle Opening Angle %
Throttle Sensor Voltage V
Fuel Injection #I Pulse ms
ISC Valve Dutv Ratio %
Engine coolant temperature signal I Coolant Temp. I "C or OF
Fuel pump duty control signal
A/F sensor current
N F sensor resistance
Front oxygen (NF) sensor output signal
Rear oxygen sensor output signal
Short term fuel trim
Fuel Pump Duty YO
A/F Sensor #I Current mA
N F Sensor #I Resistance R
A/F Sensor #I Rear 0 2 Sensor V
A/F Correction #I %
A/F correction (short term fuel trim) by rear oxygen sensor
Long term whole fuel trim
Front oxygen (A/F) sensor heater current
Rear oxvaen sensor heater voltaae
Knock sensor signal 1 Knocking Correction I deg
8- ~
A/F Correction #3 YO
N F Learning #I %
A/F Heater Current 1 A
Rear 0 2 Heater Voltage V
Atmospheric absolute pressure signal
Tumble generator valve position sensor signal (right side)
Tumble generator valve position sensor signal (left side)
Tumble aenerator valve drive sianal
1 Atmosphere Pressure
TGV Position Sensor R V
TGV Position Sensor L V
TGV Drive OPEN or CLOSE
1 mmHg or kPa or inHg or
Dsi
Intake air temperature signal
Learned ignition timing
Mass air flow sensor signal
Mass air flow sensor signal
Fuel tank pressure signal
mmHg or kPa or inHg or
psi Mani. Relative Pressure Intake manifold relative pressure signal
"C or OF Intake Air Temp.
Learned Ignition Timing deg
Mass Air Flow gls
Air Flow Sensor Voltage V
mmHg or kPa or inHg or
psi Fuel Tank Pressure
Intake manifold absolute pressure signal
Fuel temperature signal
Exhaust gas temperature signal
MTIAT identification signal
Fuel Dressure control solenoid valve sianal
mmHg or kPa or inHg or
Dsi 1 Mani. Absolute Pressure 1
Fuel Temp "C or OF
Exhaust Gas Temperature OC or OF
AT Vehicle ID Signal ON or OFF
PCV Solenoid Valve ON or OFF
Canister purge control solenoid valve duty ratio 1 CPC Valve Duty Ratio I %
Primary supercharged pressure control signal 1 Primary Control I Oh
I Fuel Level I V
EN(D0HC TURBO)-39
SUBARU SELECT MONITOR
ENGINE (DIAGNOSTICS)
Contents Display Unit of measure
I Ignition switch signal I Ignition Switch I ON or OFF I
Drain valve sianal 1 Vent. Solenoid Valve
I Test mode connector signal I Test Mode Signal I ON or OFF I
ON or OFF
Neutral position switch signal
Air conditioning switch signal
Air conditioning signal
Radiator main fan relav sianal
I Fuel pump relay signal I Fuel Pump Relay I ON or OFF I
Neutral Position Switch ON or OFF
N C Switch ON or OFF
N C Compressor Signal ON or OFF
Radiator Fan Relav #I ON or OFF
Knocking signal
Radiator sub fan relay signal
Power steering switch signal
Engine torque control signal #I
Enaine toraue control sianal #2
Knocking Signal ON or OFF
Radiator Fan Relay #2 ON or OFF
PIS Switch ON or OFF
Torque Control Signal #I ON or OFF
Toraue Control Sianal #2 ON or OFF
EN(D0HC TURBO)-40
Engine torque control permission signal
Rear oxygen sensor rich signal
Starter switch signal
Idle switch signal
Crankshaft position sensor signal
Camshaft position sensor signal
Rear defogger switch signal
Blower fan switch signal
Small light switch signal
Tumble generator valve output signal
Torque Permission Signal ON or OFF
Rear 0 2 Rich Signal ON or OFF
Starter Switch ON or OFF
Idle Switch ON or OFF
Crankshaft Position Sig. ON or OFF
Camshaft Position Sig. ON or OFF
Rear Defogger SW ON or OFF
Blower Fan SW ON or OFF
Light Switch ON or OFF
TGV Output ON or OFF
SUBARU SELECT MONITOR
ENGINE IDIAGNOSTICSI
Contents Display
Number of diagnosis code Number of Diagnosis Code
MI (MIL)
Misfire monitoring
Malfunction indicator lamp status
Monitorina test of misfire
5. READ CURRENT DATA FOR ENGINE. (OBD MODE)
1) On the ((Main Menu)) display screen, select the {Each System Check} and press the [YES] key.
2) On the ((System Selection Menu), display screen, select the {Engine Control System} and press the
key.
3) Press the [YES] key after displayed the information of engine type.
4) On the ((Engine Diagnosis), display screen, select the {OSD System} and press the [YES] key.
5) On the < 6) On the ((Data Display Menu,, display screen, select the {Data Display} and press the [YES] key.
7) Using the scroll key, move the display screen up or down until the desired data is shown.
A list of the support data is shown in the following table.
Unit of measure
ON or OFF
Complete or incomplete
-
YES]
key.
Monitoring test of fuel system
Monitoring test of comprehensive component
Test of catalyst
Test of heated catalyst
Test of evaporative emission purge control system
Test of secondary air system
Fuel system monitoring Complete or incomplete
Component monitoring Complete or incomplete
Catalyst Diagnosis Complete or incomplete
Heated catalyst No support
Evaporative purge system Complete or incomplete
Secondary air system No support
Test of air conditioning system refrigerant 1 A/C system refrigerant No support
Test of oxygen sensor
Test of oxygen sensor heater
Test of EGR system
Air fuel ratio control system for bank 1
Engine load data
Engine coolant temperature signal
Short term fuel trim by front oxygen (NF) sensor
Long term fuel trim by front oxygen ( N F ) sensor
Intake manifold absolute pressure signal
Oxygen sensor Complete or incomplete
0 2 Heater Diagnosis Complete or incomplete
EGR system No support
Fuel System for Bank 1
Calculated load value Y O
Coolant Temp. "C or O F
Short term fuel trim B1 O/O
Long term fuel trim B1 Y O
-
I mmHg or kPa or inHg or psi I Mani. Absolute Pressure
Vehicle speed signal I Vehicle Speed
I
rPm Enaine meed sianal I Engine Speed
km/h or MPH
Ignition timing advance for #1 cylinder
Intake air temperature signal
Intake air amount
A/F sensor sianal
Throttle position signal
Ignition timing adv. #I 0
Intake Air Temp. "C or OF
Mass Air Flow g/s
Throttle Opening Angle O/O
NF sensor #11 V
Rear oxvaen sensor outDut sianal I Oxygen Sensor #I 2 V
NOTE:
For detailed operation procedure, refer to the SUBARU SELECT MONITOR OPERATION MANUAL.
Air fuel ratio correction by rear oxygen sensor
On-board diagnostic system
EN(D0HC TURBO)-41
Short term fuel trim #12
OBD System YO
SUBARU SELECT MONITOR
Engine load data
Engine coolant temperature signal
Short term fuel trim bv front oxvaen (NF) sensor
ENGINE (DIAGNOSTICS)
6. READ FREEZE FRAME DATA FOR ENGINE. (OBD MODE)
1) On the ((Main Menu,, display screen, select the {Each System Check} and press the [YES] key.
2) On the ((System Selection Menu>> display screen, select the {Engine Control System} and press the [YES]
key.
3) Press the [YES] key after displayed the information of engine type.
4) On the ((Engine Diagnosis,, display screen, select the {OBD System} and press the [YES] key.
5) On the <) display screen, select the {Freeze Frame Data} and press the [YES] key.
A list of the support data is shown in the following table.
Calculated load valve %
Coolant Temp. "C or OF
Short term fuel trim B1 %
Engine speed signal
Vehicle speed signal
I Diagnostic trouble code (DTC) for freeze frame data I Freeze frame data I DTC I
Engine Speed rPm
Vehicle Speed km/h or MPH
I Air fuel ratio control system for bank 1 I Fuel system for Bank1 I ON or OFF I
I
~~
I Lonq term fuel trim bv front oxvqen (NF) sensor I Lona term fuel trim 81 I ~~ %
1 Intake manifold absolute pressure signal I mmHg or kPa or inHg or mi 1 Mani. Absolute Pressure I
EN(D0HC TURBO)-42
SUBARU SELECT MONITOR
ENGINE (DIAGNOSTICS)
Contents
7. LED OPERATION MODE FOR ENGINE
1) On the ((Main Menu,, display screen, select the {Each System Check} and press the [YES] key.
2) On the ((System Selection Menu)) display screen, select the {Engine Control System} and press the [YES]
key.
3) Press the [YES] key after displayed the information of engine type.
4) On the ((Engine Diagnosis), display screen, select the {Current Data Display & Save} and press the [YES]
key.
5) On the < 6) Using the scroll key, move the display screen up or down until the desired data is shown.
A list of the support data is shown in the following table.
Display I Message 1 LED "ON" requirements
lanition switch signal
Test mode connector signal
Neutral position switch signal
Air conditioning switch sianal
. -
Ignition Switch
Test Mode Signal
Neutral Position Switch
N C Switch
ON or OFF When ignition switch is turned ON.
ON or OFF When test mode connector is connected.
ON or OFF When neutral position signal is entered.
" I
W.l"., ni-...-.l A /P P r r m n r r r r . r . n v Cinn-l
orOFF When air conditioning switch is turned ON.
When air conditioning compressor is in funcON or OFF tion,
Radiator main fan relay signal
Knocking signal
Radiator sub fan relay signal
..-.-I u4
..
Radiator Fan Relay #1
Knocking Signal ON or OFF When knocking signal is entered.
Radiator Fan Relay #2
ON or OFF When radiator main fan relay is in function.
ON or OFF When radiator sub fan relay is in function.
When engine torque control signal 1 is T-r-. .- P..-+..nl CL-.nnl u.4 ON Or OFF entered.
Engine torque control signal #2 When engine torque control signal 2 is 1 ON Or OFF 1 entered. Torque Control Signal #2
When camshaft position sensor signal is
entered. Camshaft position sensor signal 1 Camshaft Position Signal 1 ON or OFF I
Engine torque control permission
sianal
Torque Control Permission When engine torque control permission signal is entered. ON Or OFF
- I I I
Liaht switch sianal I LiQht Switch 1 ON or OFF I When small light switch is turned ON.
Rear oxygen sensor rich signal Rear 0 2 Rich Signal ON or OFF When rear oxygen sensor mixture ratio is rich,
Starter switch signal
Idle switch signal
Crankshaft position sensor signal
NOTE:
For detailed operation procedure, refer to the SUBARU SELECT MONITOR OPERATION MANUAL.
Starter Switch
Idle Switch Signal
Crankshaft Position Signal ON or OFF entered,
ON or OFF When starter switch signal is entered.
ON or OFF When idle switch signal is entered.
When crankshaft position sensor signal is
EN(D0HC TURBO)-43
Power steering switch signal
Rear defogger switch signal
Blower fan switch sianal
PIS Switch
Rear Defogger Switch
Blower Fan Switch
ON or OFF When power steering switch is entered.
ON or OFF When rear defogger switch is turned ON.
ON or OFF When blower fan switch is turned ON.
~
Tumble generator valve actuator
signal
Tumble generator valve drive signal
ON or OFF When TGV actuator signal is entered.
OPEN Or When TGV moves and valve opens.
CLOSE
TGV Output
TGV Drive
Fuel pressure control solenoid
valve signal
Drain valve signal
pcv Solenoid Valve
Vent. Solenoid Valve
When fuel pressure control solenoid valve is
ON Or OFF in function.
ON or OFF When drain valve is in function.
SUBARU SELECT MONITOR
ENGINE (DIAGNOSTICS)
Battery voltage
Rear vehicle speed sensor signal
Front vehicle speed sensor sianal
~
8. READ CURRENT DATA FOR AT
1) On the ((Main Menu)) display screen, select the {Each System Check} and press the [YES] key.
2) On the ((System Selection Menu)) display screen, select the {Transmission Control System} and press the
[YES] key.
3) Press the [YES] key after displayed the information of transmission type.
Battery Voltage V
Rear Wheel Speed
Front Wheel Speed
km/h or MPH
km/h or MPH
4) On the ((Transmission Diagnosis), display screen, select the {Current-Data Display & Save} and press the
[YES] key.
-
Engine speed signal
Mass air flow sensor signal
Automatic transmission fluid temperature signal
5) On the ((Data Display Menu)) display screen, select the {Data Display} and press the [YES] key.
6) Using the scroll key, move the display screen up or down until the desired data is shown.
A list of the support data is shown in the following table.
Engine Speed r Pm
Air Flow Sensor Voltage V
ATF Temp. "C or OF
Display I Unit of measure I Contents I
I
Throttle position signal
Gear position
Line pressure control dutv ratio
Throttle Sensor Voltage V
Gear Position Line Pressure Dutv Ratio Y O
Transfer clutch control duty ratio
Power supply for throttle position sensor
Torque converter turbine speed signal
2-4 brake timing pressure control duty ratio
Stop lamp switch signal
Anti lock brake system sianal
Transfer Duty Ratio Y O
Throttle Sensor Power V
Turbine Revolution Speed rPm
Brake Clutch Duty Ratio Y O
Stop Light Switch ON or OFF
ABS Sianal ON or OFF
NeutraVParking range signal
Reverse range signal
Drive range signal
3rd range signal
2nd range signal
1 st range signal
Shift control solenoid A
N/P Range Signal
R Range Signal
D Range Signal
3rd Range Signal
2nd Range Signal
1 st Range Signal
Shift Solenoid #1
ON or OFF
ON or OFF
ON or OFF
ON or OFF
ON or OFF
ON or OFF
ON or OFF
~
I Cruise control system signal I Cruise Control Signal I ON or OFF I
Shift control solenoid B
Torque control output signal #1
Torque control output signal #2
Torque control cut signal
2-4 brake timing control solenoid valve
Shift Solenoid #2
Torque Control Signal #1
Torque Control Signal #2
Torque Control Cut Sig.
2-4 Brake Timina Sol.
ON or OFF
ON or OFF
ON or OFF
ON or OFF
ON or OFF
I Low clutch timing control solenoid valve I Low Clutch Timing Sol. I ON or OFF I
EN(D0HC TURBO)-44
READ DIAGNOSTIC TROUBLE CODE I
EN G I N E (DIAGNOSTICS)
11 .Read Diagnostic Trouble
Code
A: OPERATION
1. SUBARU SELECT MONITOR (NORMAL
MODE)
1) On the ((Main Menu,, display screen, select the
{Each System Check} and press the [YES] key.
2) On the < screen, select the {Engine Control System} and
press the [YES] key.
3) Press the [YES] key after displayed the information of engine type.
4) On the < [YES] key.
5) On the < screen, select the {Current Diagnostic Code(s)} or
{History Diagnostic Code@)} and press the [YES]
key.
NOTE:
For detailed operation procedure, refer to the
UAL.
For detailed concerning diagnostic trouble
codes, refer to the List of Diagnostic Trouble Code
(DTC).
2. SUBARU SELECT MONITOR (OBD
MODE)
1) On the <
(2. Each System Check} and press the [YES] key.
2) On the < screen, select the {Engine Control System} and
press the [YES] key.
3) Press the [YES] key after displayed the information of engine type.
4) On the < 5) On the < {Diagnosis Code(s) Display} and press the [YES]
key.
6) Make sure that a diagnostic trouble code (DTC)
is shown on the display screen.
NOTE:
For detailed operation procedure, refer to the
UAL.
For detailed concerning diagnostic trouble
codes, refer to the List of Diagnostic Trouble Code
(DTC).
SUBARU SELECT MONITOR OPERATION MAN-
SUBARU SELECT MONITOR OPERATION MAN-
3. OBD-ll GENERAL SCAN TOOL
Refers to data denoting emission-related powertrain diagnostic trouble codes.
For details concerning diagnostic trouble codes, refer to the List of Diagnostic Trouble Code (DTC).
Trouble Code (DTC).>
NOTE:
Refer to OBD-II general scan tool manufacturer's
instruction manual to access emission-related
powertrain diagnostic trouble codes (MODE $03).
EN(D0HC TURBO)-45
INSPECTION MODE
ENGINE (DIAGNOSTICS)
12.lnspection Mode
A: OPERATION
1. PREPARATION FOR THE INSPECTION
MODE
Raise the vehicle using a garage jack and place on
safety stands or drive the vehicle onto free rollers.
WARNING:
Before raising the vehicle, ensure parking
brakes are applied.
Do not use a pantograph jack in place of a
safety stand.
Secure a rope or wire to the front and rear
towing or tie-down hooks to prevent the lateral
runout of front wheels.
Do not abruptly depresshelease the clutch
pedal or accelerator pedal during works even
when engine is operating at low speeds since
this may cause the vehicle to jump off free rollers.
In order to prevent the vehicle from slipping
due to vibration, do not place any wooden
blocks or similar items between the safety
stands and the vehicle.
Since the rear wheels will also rotate, do not
place anything near them. Also, make sure that
nobody goes in front of the vehicle.
Safeystand
02M2969P
2. SUBARU SELECT MONITOR
After performing diagnostics and clearing the memory, check for any remaining unresolved trouble data.
1) Prepare the Subaru Select Monitor kit. General Description.>
EN(D0HC TURBO)-8, PREPARATION TOOL,
S2M0285
2) Connect the diagnosis cable to Subaru Select
Monitor.
3) Insert the cartridge into Subaru Select Monitor.
TOOL, General Description.>
4) Connect the test mode connector at the lower
portion of instrument panel (on the driver's side), to
the side of the center console box.
EN(D0HC TURBO)-46
am ENGINE (DIAGNOSTICS)
INSPECTION MODE
5) Connect the Subaru Select Monitor to data link
connector .
(1) Connect the Subaru Select Monitor to data
link connector located in the lower portion of the
instrument panel (on the driver’s side).
I
I . . I
(2) Connect the diagnosis cable to data link
connector.
CAUTION:
Do not connect scan tools except for Subaru
Select Monitor and OBD-II general scan tool.
6) Turn the ignition switch to ON (engine OFF) and
Subaru Select Monitor switch to ON.
. -
S2M0288 I
7) On the ((Main Menu,, display screen, select the
{2. Each System Check} and press the [YES] key.
8) On the ((System Selection Menu,) display
screen, select the {Engine Control System} and
press the [YES] key.
9) Press the [YES] key after displayed the information of engine type.
10) On the ((Engine Diagnosis,, display screen, select the {Dealer Check Mode Procedure} and press
the [YES] key.
11) When the “Perform Inspection (Dealer Check)
Mode?” is shown on the display screen, press the
[YES] key.
12) Perform subsequent procedures as instructed
on the display screen.
If trouble still remains in the memory, the corresponding diagnostic trouble code (DTC) appears
on the display screen.
NOTE:
For detailed operation procedure, refer to the
UAL.
For detailed concerning diagnostic trouble
codes, refer to the List of Diagnostic Trouble Code
(DTC).
Release the parking brake.
The speed difference between front and rear
wheels may light either the ABS warning light, but
this indicates no malfunctions. When engine control diagnosis is finished, perform the ABS memory
clearance procedure of self-diagnosis system.
After performing the diagnostics and clearing the
memory, check for any remaining unresolved trouble data:
1) Connect the test mode connector (A) at the lower side of the instrument panel (on the driver’s
side), to the side of the center console box.
SUBARU SELECT MONITOR OPERATION MAN-
3. OBD-II GENERAL SCAN TOOL
EN(D0HC TURBO)-47
INSPECTION MODE
ENGINE (DIAGNOSTICS)
2) Connect the OBD-II general scan tool to its data
link connector in the lower portion of the instrument
panel (on the driver’s side).
CAUTION:
Do not connect scan tools except for Subaru
Select Monitor and OBD-II general scan tool.
3) Start the engine.
NOTE:
Depress the clutch pedal when starting the engine.
4) Using the shift lever, turn the “N” position switch
to ON.
5) Keep the engine speed in the 2,500 - 3,000
rpm range for 40 seconds.
6) Place the shift lever in the “1st” gear and drive
the vehicle at 5 to 10 km/h (3 to 6 MPH).
NOTE:
The speed difference between front and rear
wheels may light the ABS warning light, but this indicates no malfunctions. When engine control diagnosis is finished, perform the ABS memory
clearance procedure of self-diagnosis system.
7) Using the OBD-II general scan tool, check for diagnostic trouble code(s) and record the result(s).
NOTE:
For detailed operation procedures, refer to the
OBD-ll General Scan Tool Instruction Manual.
For detailed concerning diagnostic trouble
codes, refer to the List of Diagnostic Trouble Code
(DTC).
EN(D0HC TURB0)-48
CLEAR MEMORY MODE
ENGINE (DIAGNOSTICS)
13.Clear Memory Mode
A: OPERATION
1. SUBARU SELECT MONITOR (NORMAL
MODE)
1) On the ((Main Menu)) display screen, select the
(2. Each System Check} and press the [YES] key.
2) On the ((System Selection Menu)) display
screen, select the {Engine Control System} and
press the [YES] key.
3) Press the [YES] key after displayed the information of engine type.
4) On the ((Engine Diagnosis,) display screen, select the {Clear Memory} and press the [YES] key.
5) When the 'Done' and 'Turn Ignition Switch OFF'
are shown on the display screen, turn the Subaru
Select Monitor and ignition switch to OFF.
NOTE:
For detailed operation procedure, refer to the
UAL.
2. SUBARU SELECT MONITOR (OBD
MODE)
1) On the ((Main Menu,) display screen, select the
(2. Each System Check} and press the [YES] key.
2) On the &ystem Selection Menu), display
screen, select the {Engine Control System} and
press the [YES] key.
3) Press the [YES] key after displayed the information of engine type.
4) On the ( 5) On the ( (4. Diagnosis Code(s) Cleared} and press the
[YES] key.
6) When the 'Clear Diagnostic Code?' is shown on
the display screen, press the [YES] key.
7) Turn the Subaru Select Monitor and ignition
switch to OFF.
NOTE:
For detailed operation procedure, refer to the
UAL.
3. OBD-II GENERAL SCAN TOOL
SUBARU SELECT MONITOR OPERATION MAN-
SUBARU SELECT MONITOR OPERATION MAN-
For clear memory procedures using the OBD-II
general scan tool, refer to the OBD-II General Scan
Tool Instruction Manual.
EN(D0HC TURBO)-49
COMPULSORY VALVE OPERATION CHECK MODE
ENGINE (DIAGNOSTICS)
14.Compulsory Valve Operation
A: OPERATION
1) Prepare the Subaru Select Monitor kit. General Description.>
Check Mode
EN(D0HC TURBO)-8, PREPARATION TOOL,
S2M0285
~
2) Connect the diagnosis cable to Subaru Select
Monitor.
3) Insert the cartridge into Subaru Select Monitor.
TOOL, General Description.>
S2M0286A
4) Connect the test mode connector (A) at the lower portion of instrument panel (on the driver's side),
to the side of the center console box.
5) Connect the Subaru Select Monitor to data link
connector.
(1) Connect the Subaru Select Monitor to data
link connector located in the lower portion of the
instrument panel (on the driver's side).
I I
(2) Connect the diagnosis cable to data link
connector.
CAUTION:
Do not connect scan tools except for Subaru
Select Monitor and OBD-ll general scan tool.
6) Turn the ignition switch to ON (engine OFF) and
Subaru Select Monitor switch to ON.
I S2M0288 I
7) On the ((Main Menu)) display screen, select the
(2. Each System Check} and press the [YES] key.
8) On the ((System Selection Menu)) display
screen, select the {Engine Control System} and
press the [YES] key.
9) Press the [YES] key after displayed the information of engine type.
10) On the ((Engine Diagnosis)) display screen, select the {System Operation Check Mode} and press
the [YES] key.
11) On the ((System Operation Check Mode)) display screen, select the {Actuator ON/OFF Operation} and press the [YES] key.
12) Select the desired compulsory actuator on the
((Actuator ON/OFF Operation)) display screen and
press the [YES] key.
13) Pressing the [NO] key completes the compulsory operation check mode. The display will then
return to the ((Actuator ON/OFF Operation))
screen.
EN(D0HC TURBO)-50
COMPULSORY VALVE OPERATION CHECK MODE
ENGINE (DIAGNOSTICS)
Contents
Compulsory fuel pump relay operation check
ComDulsorv radiator fan relay oDeration check
Display
Fuel Pump Relay
Radiator Fan Relay
Compulsory air conditioning relay operation check I A/C Compressor Relay I
Compulsory purge control solenoid valve operation check
Compulsory fuel pressure control solenoid valve operation check
Compulsory drain valve operation check
Compulsory fuel tank pressure sensor control valve operation check
CPC Solenoid Valve
PCV Solenoid Valve
Vent Control Solenoid Valve
Fuel Tank Sensor Control Valve
Display
EGR Solenoid Valve
ASV Solenoid Valve
m C D Solenoid I
I Pressure Switching Sol. 1 I
I Pressure Switching Sol. 2 I
I AAI Solenoid Valve
For detailed operation procedure, refer to the SUBARU SELECT MONITOR OPERATION MANUAL.
EN(D0HC TURBO)-51
ENGINE MALFUNCTION INDICATOR LAMP (MIL)
ENGINE (DIAGNOSTICS)
15.Engine Malfunction Indicator Lamp (MIL)
A: PROCEDURE
1. Activation of check engine malfunction indicator lamp (MIL). ENGINE MALFUNCTION INDICATOR LAMP (MIL), Engine Malfunction Indicator Lamp (MIL).>
1
2. Check engine malfunction indicator lamp (MIL) does not come on.
1
3. Check engine malfunction indicator lamp (MIL) does not go off.
1
4. Check engine malfunction indicator lamp (MIL) does not blink at a cycle of 3 Hz. ENGINE MALFUNCTION INDICATOR LAMP (MIL) DOES NOT BLINK AT A CYCLE OF 3 HZ., Engine Malfunction Indicator
Lamp (MIL).>
1
5. Check engine malfunction indicator lamp (MIL) remains blinking at a cycle of 3 Hz. ENGINE MALFUNCTION INDICATOR LAMP (MIL) REMAINS BLINKING AT A CYCLE OF 3 HZ., Engine Malfunction Indicator
Lamp (MIL).>
EN(D0HC TURBO)-52
m ENGINE MALFUNCTION INDICATOR LAMP (MIL)
ENGINE (DIAGNOSTICS)
4) When the ignition switch is turned to ON (engine
off) or to “START” with the test mode connector
connected, the MIL blinks at a cycle of 3 Hz.
B: ACTIVATION OF CHECK ENGINE
MALFUNCTION INDICATOR
LAMP (MIL)
1) When the ignition switch is turned to ON (engine
off), the CHECK ENGINE malfunction indicator
lamp (MIL) in the combination meter illuminates.
NOTE:
If the MIL does not illuminate, perform diagnostics
of the CHECK ENGINE light circuit or the combination meter circuit. CH ECK EN G I N E M ALFU NCTl ON I N D C A T 0 R
LAMP (MIL) DOES NOT COME ON., Engine Malfunction Indicator Lamp (MIL).>
I FNln74
2) After starting the engine, the MIL goes out. If it
does not, either the engine or the emission control
system is malfunctioning.
b) Trouble occurs.
ON
OFF Igniiion 1
MIL
switch En&e
ON Start OBD0053A
3) If the diagnosis system senses a misfire which
could damage the catalyzer, the MIL will blink at a
cycle of 1 Hz.
ON
OFF
MIL
Ignition
switch ~~g~~~
ON start ~ 1 sec. i
Misfire
start
OBD0054P
MIL ON
OFF ,
r4 1 sec. *
Ignition
switch
ON
OBD0055P
EN(D0HC TURBO)-53
ENGINE MALFUNCTION INDICATOR LAMP (MIL)
ENGINE (DIAGNOSTICS)
r 112 3 1 W 1 4
718 9 110111112
L
C: CHECK ENGINE MALFUNCTION INDICATOR LAMP (MIL) DOES NOT COME
ON.
DIAGNOSIS:
TROUBLE SYMPTOM:
WIRING DIAGRAM:
The CHECK ENGINE malfunction indicator lamp (MIL) circuit is open or shorted.
When the ignition switch is turned ON (engine OFF), MIL does not come on.
1 n i ~n
516 11 12131415161718191101
13114
J
BATTERY
Yes
Go to step 4.
@ ECM
COMBINATION
METER
C : @
No Go to step 2.
m Pl?EwEa 10 11 12 13 14 15 16 17 18 19 20 1121314151 16171819110111 1 2 ~ 1 3 ~ 1 4 ~ 1 5 [ 1 6 ~ 1 7 ~ 1 8 ~ 1 9 ~ 2 0 ~ 2 1 ~ 2 2 ~ 2 3 ~ 2 4
EN1 137
Step
1 CHECK OUTPUT SIGNAL FROM ECM.
1)Turn the ignition switch to ON.
2)Measure the voltage between ECM connector and chassis ground.
Connector & terminal
(8137) No. 15 (+) - Chassis ground (-):
Check
Is the voltage less than 1 V?
EN( DOHC TU RB0)-54
ENGINE MALFUNCTION INDICATOR LAMP (MIL)
ENGINE (DIAGNOSTICS)
Step
CHECK POOR CONTACT.
CHECK ECM CONNECTOR.
CHECK HARNESS BETWEEN COMBINA-
TION METER AND ECM CONNECTOR.
1)Turn the ignition switch to OFF.
2)Remove the combination meter. IDI-11, Combination Meter Assembly.>
3)Disconnect the connector from ECM and
combination meter.
4)Measure the resistance of harness between
ECM and combination meter connector.
Connector & terminal
(8137) No. 15 - (i12) No. 6:
CHECK POOR CONTACT.
Check poor contact in combination meter connector.
CHECK HARNESS BETWEEN COMBINA-
TION METER AND IGNITION SWITCH CON-
NECTOR.
1)Turn the ignition switch to ON.
2)Measure the voltage between combination
meter connector and chassis ground.
Connector & terminal
(i10) No. 7 (+) - Chassis ground (-):
I CHECK LAMP BULB.
Remove the engine malfunction indicator lamp
bulb.
Check
,oes the MIL come on when
haking or pulling ECM conector and harness?
;the ECM connector correctly
onnected?
; the resistance less than 1
2?
; there poor contact in combiiation meter connector?
s the voltage more than 10 V?
s the lamp bulb condition OK;
Yes
Tepair poor conx t in ECM conlector.
leplace the ECM.
:Ref. to FU(D0HC
lngine Control
nodule.>
'URB0)-47,
;o to step 5.
lepair poor conact in combination
neter connector.
So to step 7.
3epair combina:ion meter connec.
:or.
No 30 to step 3.
Repair connection
sf ECM connector,
Repair harness
and connector.
NOTE:
In this case, repai
the following:
Open circuit in
harness between
ECM and combination meter connector
8 Poor contact in
coupling connect0
Go to step 6.
Check the following and repair if
necessary.
NOTE:
* Brokendown
ignition relay.
Blown out fuse
(No. 5).
If replaced fuse
(No. 5) blows easily, check the harness for short
circuit of harness
between fuse (No.
5) and ignition
relay connector.
Open or short
circuit in harness
between fuse (No.
5) and battery terminal
Open circuit in
harness between
fuse (No. 5) and
ignition relay connector
Poor contact in
ignition relay connector
Poor contact in
ignition switch cor
nector
Replace the lamp
bulb.
EN(D0HC TURBO)-55
ENGINE MALFUNCTION INDICATOR LAMP (MIL)
ENGINE (DIAGNOSTICS)
~
D: CHECK ENGINE MALFUNCTION INDICATOR LAMP (MIL) DOES NOT GO
OFF.
DIAGNOSIS:
TROUBLE SYMPTOM:
The CHECK ENGINE malfunction indicator lamp (MIL) circuit is shorted.
Although MIL comes on when the engine runs, trouble code is not shown on the Subaru select monitor
or OBD-ll general scan tool display.
WIRING DIAGRAM:
IGNITION
ql 1
OMBINATION
ETER
A : @
C : @
BATTERY
@ ECM U
I
EN1137
Step
1 CHECK HARNESS BETWEEN COMBINA-
TlON METER AND ECM CONNECTOR.
1)Turn the ignition switch to OFF.
2)Disconnect the connector from ECM.
3)Turn the ignition switch to ON.
Check
Does the MIL come on? in harness EN(D0HC TURBO)-56
ENGINE MALFUNCTION INDICATOR LAMP (MIL)
ENGINE (DIAGNOSTICS)
E: CHECK ENGINE MALFUNCTION INDICATOR LAMP (MIL) DOES NOT BLINK
AT A CYCLE OF 3 HZ.
DIAGNOSIS:
The CHECK ENGINE malfunction indicator lamp (MIL) circuit is open or shorted.
Test mode connector circuit is in open.
When in inspection mode, MIL does not blink at a cycle of 3 Hz.
TROUBLE SYMPTOM:
EN(D0HC TURB0)-57
ENGINE MALFUNCTION INDICATOR LAMP (MIL)
ENGINE (DIAGNOSTICS)
WIRING DIAGRAM:
BATTERY
SBF-4 SBF-1
IGNITION
3 c
COMBINATION
METER
A : @
C : @
EN1 138
EN(D0HC TURBO)-58
ENGINE MALFUNCTION INDICATOR LAMP (MIL)
ENGINE (DIAGNOSTICS)
_ _ _ _ _ ~
Step
CHECK STATUS OF CHECK ENGINE MAL-
FUNCTION INDICATOR LAMP (MIL).
1)Turn the ignition switch to OFF.
2)Disconnect the test mode connector.
3)Turn the ignition switch to ON. (engine OFF)
! CHECK HARNESS BETWEEN COMBINA-
TlON METER AND ECM CONNECTOR.
1)Turn the ignition switch to OFF.
2)Disconnect the connector from ECM.
3)Turn the ignition switch to ON.
I CHECK HARNESS BETWEEN TEST MODE
CONNECTOR AND CHASSIS GROUND.
1)Turn the ignition switch to OFF.
2)Disconnect the connector from ECM.
3)Measure the resistance of harness between
test mode connector and chassis ground.
(876) No. 1 - Chassis ground:
Connector & terminal
I CHECK POOR CONTACT.
Check poor contact in ECM connector.
i CHECK HARNESS BETWEEN ECM AND
TEST MODE CONNECTOR.
1)Connect the test mode connector.
2)Measure the resistance of harness between
ECM and chassis ground.
Connector & terminal
(8134) No. 14 - Chassis ground:
Check poor contact in ECM connector.
i CHECK POOR CONTACT.
Check
loes the MIL come on?
loes the MIL come on?
s the resistance less than 1
n? s there poor contact in ECM
:onnector?
s the resistance less than 1
R?
s there poor contact in ECM
:onnector?
Yes
io to step 2.
3epair ground
;hort circuit in harless between
:ombination meter
ind ECM connecor.
i o to step 4.
3epair poor conact in ECM conlector.
i o to step 6.
No Repair the MIL circuit. EN(D0HC
CHECK ENGINE
MALFUNCTION
INDICATOR
LAMP (MIL)
DOES NOT
COME ON.,
Engine Malfunction Indicator
Lamp (MIL).>
Go to step 3.
TURBO)-54,
Repair harness
and connector.
NOTE:
In this case, repaii
the following:
Open circuit in
harness between
test mode connector and chassis
ground
Go to step 5.
Repair open circuit
in harness
between ECM and
test mode connector.
lector. TURBO)-47,
Engine Control
Module.>
EN(D0HC TURBO)-59
ENGINE MALFUNCTION INDICATOR LAMP (MIL)
ENGINE (DIAGNOSTICS)
F: CHECK ENGINE MALFUNCTION INDICATOR LAMP (MIL) REMAINS BLINK-
ING AT A CYCLE OF 3 HZ.
Test mode connector circuit is shorted.
MIL blinks at a cycle of 3 Hz when the ignition switch is turned to ON.
DIAGNOSIS:
TROUBLE SYMPTOM:
WIRING DIAGRAM:
BATTERY
SBF-4 SBF-1
IGNITION
3 c
METER -1.- r
1121314151 r - l 16171819110111
1 2 ~ 1 3 ~ 1 4 ~ 1 5 ~ 1 6 ~ 1 7 ~ 1 8 ~ 1 9 ~ 2 0 ~ 2 1 ~ 2 2 ~ 2 3 ~ 2 4
112131415161 171819110111
12~13]14]15~16]17~18~19~20]21]22]23~24
m EN1138
EN(D0HC TURBO)-60
ENGINE MALFUNCTION INDICATOR LAMP (MIL)
ENGINE (DIAGNOSTICS)
Yes
Go to step 2.
Repair short circuit
in harness
between ECM and
test mode connector.
Step
CHECK TEST MODE CONNECTOR.
1)Disconnect the test mode connector.
2)Turn the ignition switch to ON.
No System is in good
order.
NOTE:
MIL blinks at a c)
cle of 3 Hz whe
test mode connec
tor is connected.
Replace the ECM.
TURBO)-47,
Engine Control
Module.>
CHECK HARNESS BETWEEN ECM CON-
NECTOR AND ENGINE GROUNDING TER-
MINAL.
1)Turn the ignition switch to OFF.
2)Disconnect the connector from ECM.
3)Measure the resistance of harness between
ECM connector and chassis ground.
Connector & terminal
(8734) No. 74 - Chassis ground:
Check
Does the MIL flash on and off?
Is the resistance less than 5
R?
EN(D0HC TURBO)-61
ENGINE MALFUNCTION INDICATOR LAMP (MIL)
ENGINE (DIAGNOSTICS)
EN(D0HC TURBO)-62
DIAGNOSTICS FOR ENGINE STARTING FAILURE
ENGINE (DIAGNOSTICS)
16.Diagnostics for Engine Starting Failure
A: PROCEDURE
1. Inspection of starter motor circuit. Startina Failure.>
L
2. Inspection of ECM power supply and ground line. AND GROUND LINE, Diagnostics for Engine Starting Failure.>
3. Inspection of ignition control system. Engine Starting Failure.>
L
-L
4. Inspection of fuel pump circuit.
-1
5.
ing Failure.>
Inspection of fuel injector circuit. EN(D0HC TURBO)-63

DIAGNOSTICS FOR ENGINE STARTING FAILURE
ENGINE (DIAGNOSTICS)
B: STARTER MOTOR CIRCUIT
CAUTION:
After repair or replacement of faulty parts, conduct CLEAR MEMORY MODE and-INSPECTION MODE Mode.>.
WIRING DIAGRAM:
IGNITION
STARTER
INTER LOCK
INTERRUPT
RELAY
I TO SECURITY SYSTEM I I
STARTER
RELAY (MT)
SWITCH
(MT)
M @ ECM -
7 8 9 1 0 1 1 1 2
EN1139
EN(D0HC TURBO)-64
DIAGNOSTICS FOR ENGINE STARTING FAILURE
ENGINE (DIAGNOSTICS)
Yes
30 to step 2.
3ecord the DTC.
3epair the trouble
:ase. !N(DOHC
rURBO)-88, Diagiostic Procedure
Nith Diagnostic
rrouble Code
DTC) . >
30 to step 4.
Step
CHECK OPERATION OF STARTER MOTOR
No Go to step 3.
Go to step 3.
Go to step 5.
CHECK DTC.
Read Diagnostic Trouble Code.>
)heck the starter
notor. X - 6 , Starter.>
CHECK INPUT SIGNAL FOR STARTER MO-
TOR.
1)Turn the ignition switch to OFF.
2)Disconnect the connector from starter motor
3)Turn the ignition switch to ST.
4)Measure the power supply voltage between
starter motor connector terminal and engine
ground.
Connector & terminal
(814) No. 1 (+) - Engine ground (-):
CHECK GROUND CIRCUIT OF STARTER
MOTOR.
1)Turn the ignition switch to OFF.
2)Disconnect the terminal from starter motor.
3)Measure the resistance of ground cable
between ground cable terminal and engine
ground.
CHECK HARNESS BETWEEN ECM AND
STARTER MOTOR CIRCUIT.
1)Turn the ignition switch to OFF.
2)Measure the resistance between starter
motor and ECM.
.
Connector & terminal
(814) No. 1 - Engine ground:
CHECK HARNESS BETWEEN ECM AND
STARTER MOTOR CIRCUIT.
1)Turn the ignition switch to START.
2)Measure the resistance of fuse.
Connector & terminal
(6 14) No. 1 - Engine ground:
CHECK HARNESS BETWEEN BATTERY
AND IGNITION SWITCH CONNECTOR.
1)Turn the ignition switch to OFF.
2)Disconnect the connector from ignition
switch .
3)Measure the power supply voltage between
ignition switch the connector and chassis
ground.
Connector & terminal
(872) No. 1 (+) - Chassis ground (-):
CHECK HARNESS BETWEEN BATTERY
AND IGNITION SWITCH CONNECTOR.
1)Connect the connector to ignition switch.
2)Turn the ignition switch to START.
3)Measure the voltage between ignition switch
and chassis ground.
Connector & terminal
(872) No. 3 (+) - Chassis ground (-):
Repair open circuil
of ground cable.
Check
Ioes the starter motor operate
qepair ground
short circuit.
vhen the switch starts?
Go to step 6.
s the trouble code stored in
nemory? -URBO)-80, LIST, List of Diag.
iostic Trouble Code (DTC).>
30 to step 8.
s the voltage more than 10 V?
Repair open circuii
in harness
between ignition
switch and battery,
s the resistance less than 5
a? s the resistance less than 1
2?
s the resistance less than 1
3?
s the voltage more than 10 V?
s the voltage more than 10 V?
I
short circuit.
3epair open circuit Go to step 9.
3etween ignition
;witch and starter
notor I circuit.
EN(D0HC TURBO)-65
DIAGNOSTICS FOR ENGINE STARTING FAILURE
ENGINE (DIAGNOSTICS)
Step
9 CHECK POOR CONTACT.
Check poor contact in ignition switch connector.
Check Yes No
Is there poor contact in ignition Repair poor conswitch connector? tact in ignition tion switch.
switch connector.
Replace the igniEN(D0HC TURBO)-66
DIAGNOSTICS FOR ENGINE STARTING FAILURE
ENGINE (DIAGNOSTICS)
EN(D0HC TURBO)-67
DIAGNOSTICS FOR ENGINE STARTING FAILURE
ENGINE (DIAGNOSTICS)
C: CONTROL MODULE POWER SUPPLY AND GROUND LINE
CAUTION:
After repair or replacement of faulty parts, conduct CLEAR MEMORY MODEeRef. to EN(D0HC TURBO)-49, Clear Memory Mode.> and INSPECTION MODE. Mode.>
WIRING DIAGRAM:
MAIN RELAY
BATTERY
A : @
c : @ ECM
D : @
r 1
EN1171
EN(D0HC TURBO)-68
DIAGNOSTICS FOR ENGINE STARTING FAILURE
ENGINE (DIAGNOSTICS)
i o to step 3.
_ _ _ _ _ ~
Step
CHECK MAIN RELAY.
1)Turn the ignition switch to OFF.
2)Remove the main relay.
3)Connect the battery to main relay terminals
No. 1 and No. 2.
4)Measure the resistance between main relay
terminals.
Terminals
NO. 3 - NO. 5:
NO. 4 - NO. 6:
CHECK GROUND CIRCUIT OF ECM.
1)Disconnect the connector from ECM.
2)Measure the resistance of harness between
ECM and chassis ground.
Connector & terminal
(6134) No. 7 - Chassis ground:
(6 134) No. 15 - Chassis ground:
(6134) No. 22 - Chassis ground:
(6136) No, 8 - Chassis ground:
(6136) No. 17 - Chassis ground:
(6136) No. 18 - Chassis ground:
(8137) No. 8 - Chassis ground:
(8137) No. 9 - Chassis ground:
(684) No, 1 - Chassis ground: (MT vehicle)
CHECK INPUT VOLTAGE OF ECM.
Measure the voltage between ECM connector
and chassis ground.
Connector & terminal
(8137) No. 10 (+) - Chassis ground (-):
(8134) No. 5 (+) - Chassis ground (-):
CHECK HARNESS BETWEEN ECM AND
MAIN RELAY CONNECTOR.
1)Turn the ignition switch to OFF.
2)Disconnect the connector from ECM.
3)Measure the resistance between ECM and
chassis ground.
Connector & terminal
(6134) No. 6 - Chassis ground:
CHECK OUTPUT VOLTAGE FROM ECM.
1)Connect the connector to ECM.
2)Turn the ignition switch to ON.
3)Measure the voltage between ECM connector and chassis ground.
Connector &i terminal
(6134) No. 6 (+) - Chassis ground (-):
CHECK INPUT VOLTAGE OF MAIN RELAY.
Check the voltage between main relay connector and chassis ground.
Connector & terminal
(647) No. 2 (+) - Chassis ground (-):
Repair open circuit
in harness
between ECM
connector and
engine grounding
terminal.
. CHECK GROUND CIRCUIT OF MAIN RE-
LAY.
1)Turn the ignition switch to OFF.
2)Measure the resistance between main relay
connector and chassis ground.
Connector 81 terminal
(847) No. 1 - Chassis ground:
io to step 4.
Check
s the resistance less than 10
2?
Repair open or
ground short circuit of power supply circuit.
s the resistance less than 5
2?
i o to step 5.
;o to step 6.
;o to step 7.
;o to step 8.
s the voltage more than 10 V?
Repair ground
short circuit in har.
ness between
ECM connector
and main relay
connector, then
replace the ECM.
Replace the ECM.
Engine Control
Module.>
TURBO)-47,
Repair open circuil
in harness
between ECM
connector and
main relay connec
tor.
Repair open circuii
between main
relay and chassis
ground.
s the resistance more than 1
dnR?
s the voltage more than 10 V?
s the voltage more than 10 V?
s the resistance less than 5
2?
relay.
I
I
EN( DOHC TURBO)-69
I
DIAGNOSTICS FOR ENGINE STARTING FAILURE
ENGINE (DIAGNOSTICS)
Yes
Go to step 9.
Check ignition
control system.
TURBO)-72, IGNI-
TION CONTROL
SYSTEM, Diagnostics for Engine
Starting Failure.>
Measure the voltage between main relay connector and chassis ground.
Connector & terminal
(847) No. 5 (+) - Chassis ground (-):
(847) No. 6 (+) - Chassis ground (-):
CHECK INPUT VOLTAGE OF ECM.
1)Connect the main relay connector.
2)Turn the ignition switch to ON.
3)Measure the voltage between ECM connector and chassis ground.
Connector & terminal
(8137) No. 2 (+) - Chassis ground (-):
(8137) No. 3 (+) - Chassis ground (-):
No Repair open or
ground short circuit in harness of
power supply circuit.
Repair open or
ground short circuit in harness
between ECM
connector and
main relay connec.
tor.
Check
Is the voltage more than 10 V?
Is the voltage more than 10 V?
EN(D0HC TURB0)-70
DIAGNOSTICS FOR ENGINE STARTING FAILURE
ENGINE (DIAGNOSTICS)
EN(D0HC TURB0)-71
DIAGNOSTICS FOR ENGINE STARTING FAILURE
ENGINE (DIAGNOSTICS)
D: IGNITION CONTROL SYSTEM
CAUTION:
After repair or replacement of faulty parts, conduct CLEAR MEMORY MODE and INSPECTION MODE Mode.>.
WIRING DIAGRAM:
@ ECM
IGNITION COIL IGNITION COIL IGNITION COIL IGNtTION COIL
No.1 N0.2 N0.3 N0.4
EN1140
EN(D0HC TURBO)-72
DIAGNOSTICS FOR ENGINE STARTING FAILURE
ENGINE (D IAG NOSTl CS)
Check
s the spark plug's status OK?
Step
CHECK SPARK PLUG CONDITION.
1)Remove the spark plug. TURBO)-5, INSTALLATION, Spark Plug.>
2)Check the spark plug condition. IG(D0HC TURBO)-6, INSPECTION, Spark
CHECK IGNITION SYSTEM FOR SPARKS.
1)Connect the spark plug to ignition coil.
2)Release the fuel pressure. FUEL PRESSURE, OPERATION, Fuel.>
3)Contact the spark plug's thread portion on
engine.
4)While opening the throttle valve fully, crank
the engine to check that spark occurs at each
cylinder.
CHECK POWER SUPPLY CIRCUIT FOR IG-
NlTlON COIL & IGNITOR ASSEMBLY.
1)Turn the ignition switch to OFF.
2)Disconnect the connector from ignition coil i3
ignitor assembly.
?)Turn the ignition switch to ON.
4)Measure the power supply voltage between
ignition coil & ignitor assembly connector and
engine ground.
Plug.>
!
FU(D0HC TURBO)-51, RELEASING OF
1
Connector & terminal
(€31) No. 3 (+) - Engine ground (-):
(€32) No. 3 (+) - Engine ground (-):
(E33) No. 3 (+) - Engine ground (-)I
(E34) No. 3 (+) - Engine ground (-):
CHECK HARNESS OF IGNITION COIL & IG.
NITOR ASSEMBLY GROUND CIRCUIT.
1)Turn the ignition switch to OFF.
2)Measure the resistance between ignition coi
& ignitor assembly connector and engine
ground.
I
Connector & terminal
(€31) No. 2 - Engine ground:
(E32) No, 2 - Engine ground:
(E33) No. 2 - Engine ground:
(E34) No. 2 - Engine ground:
b CHECK HARNESS BETWEEN ECM AND IG
NlTlON COIL & IGNITOR ASSEMBLY CON-
NECTOR.
1)Turn the ignition switch to OFF.
2)Disconnect the connector from ECM.
3)Disconnect the connector from ignition coil 8
ignitor assembly.
4)Measure the resistance of harness between
ECM and ignition coil & ignitor assembly connector.
Connector & terminal
. (6 136) NO. 2 1 - (E34) NO. 1 :
(6136) NO. 22 - (€33) NO. 1:
(6 136) NO. 23 - (€32) NO. 1:
(6136) NO. 24 - (€31) NO. 1:
Yes
Go to step 2.
Ioes spark occur at each cylnder?
s the voltage more than 10 V?
Check fuel pump
system. EN(D0HC
PUMP CIRCUIT,
Diagnostics for
Engine Starting
Failure. >
TURBO)-76, FUEL
Go to step 4.
s the resistance between less
han 5 12?
s the resistance less than 1
n? ;o to step 5.
;o to step 6.
No Replace the spark
3lug.
So to step 3.
Repair harness
2nd connector.
NOTE:
In this case, repai
the following:
Open circuit in
harness between
ignition coil & ignitor assembly, and
ignition switch con
nector
Poor contact in
coupling connectors
Repair harness
and connector.
NOTE:
In this case, repai
the following:
Open circuit in
harness between
ignition coil & ignitor assembly connector and engine
grounding termina
Repair harness
and connector.
NOTE:
In this case, repai
the following:
Open circuit in
harness between
ECM and ignition
coil & ignitor
assembly connector
Poor contact in
coupling connect0
EN(D0HC TURBO)-73
DIAGNOSTICS FOR ENGINE STARTING FAILURE
ENGINE (DIAGNOSTICSI
Check
~
Step
I CHECK HARNESS BETWEEN ECM AND IG-
NITION COIL & IGNITOR ASSEMBLY CON-
NECTOR.
Measure the resistance of harness between
ECM and engine ground.
Connector a terminal:
(6136) No. 21 - Engine ground:
(8736) No. 22 - Engine ground:
(6736) No. 23 - Engine ground:
(6136) No. 24 - Engine ground:
CHECK POOR CONTACT.
Check poor contact in ECM connector.
Yes No
Ma? short circuit in harnessbetween
ECM and ignition
coil i3 ignitor
assembly connector.
Is there poor contact in ECM
assembly.
connector?
EN(D0HC TURBOk74
e I
DIAGNOSTICS FOR ENGINE STARTING FAILURE
ENGINE (DIAGNOSTICS)
-
EN(D0HC TURBO)-75
DIAGNOSTICS FOR ENGINE STARTING FAILURE
ENGINE (DIAGNOSTICS)
E: FUEL PUMP CIRCUIT
CAUTION:
After repair or replacement of faulty parts, conduct CLEAR MEMORY MODE and INSPECTION MODE Mode.>.
WIRING DIAGRAM:
BATTERY
SBF-5 3 c
FUEL PUMP I
FUEL
PUMP
FUEL PUMP
CONTROLLER
EN( DOHC TU RB0)-76
-
DIAGNOSTICS FOR ENGINE STARTING FAILURE
ENG I NE (D I AG NOSTl CSl
Step
1 CHECK OPERATING SOUND OF FUEL
PUMP.
Make sure that fuel pump is in operation for
two seconds when turning the ignition switch to
ON.
NOTE:
Fuel pump operation can also be executed using Subaru Select Monitor (Function mode:
FDOI).
For the procedure, refer to “Compulsory Valve
Operation Check Mode”. TURBO)-50, Compulsory Valve Operation
Check Mode.>
Check
Does the fuel pump produce
operating sound?
EN(D0HC TURBO)-77
Yes
Check the fuel
injector circuit.
TURBO)-78, FUEL
INJECTOR CIR-
CUIT, Diagnostics
for Engine Starting Failure.>
No Record the DTC.
Repair the trouble
case. EN(D0HC
TURBO)-88, Diagnostic Procedure
with Diagnostic
Trouble Code
(DTC).>
r DIAGNOSTICS FOR ENGINE STARTING FAILURE
ENGINE (DIAGNOSTICS)
F: FUEL INJECTOR CIRCUIT
CAUTION:
Check or repair only faulty parts.
After repair or replacement of faulty parts, conduct CLEAR MEMORY MODE TURBO)-49, Clear Memory Mode.> and INSPECTION MODE.
WIRING DIAGRAM:
I I ' " IC
I .
I
-
FUEL INJECTORS
EN1 142
EN(D0HC TURBO)-78
-
DIAGNOSTICS FOR ENGINE STARTING FAILURE
ENGINE (DIAGNOSTICS)
Step
CHECK OPERATION OF EACH FUEL INJEC-
TOR.
While cranking the engine, check that each
fuel injector emits “operating” sound. Use a
sound scope or attach a screwdriver to the
injector for this check.
CHECK POWER SUPPLY TO EACH FUEL
INJECTOR.
1)Turn the ignition switch to OFF.
2)Disconnect the connector from #I cylinder
fuel injector.
3)Turn the ignition switch to ON.
4)Measure the power supply voltage between
the fuel injector terminal and engine ground.
# I (€5) No. 2 (+) - Engine ground (-):
#2 (E 16) No. 2 (+) - Engine ground (-):
#3 (E6) No. 2 (+) - Engine ground (-):
#4 (El 7) No. 2 (+) - Engine ground (-):
Connector & terminal
I CHECK HARNESS BETWEEN ECM AND
FUEL INJECTOR CONNECTOR.
1)Disconnect the connector from ECM.
2)Measure the resistance of harness between
ECM and fuel injector connector.
Connector & terminal
(8137) NO. 1 - (€5) NO. 1:
(8136) NO. 6 - (€16) NO. 1:
(8136) NO. 5 - (E6) NO. 1:
(8136) NO. 4 - (€6) NO. 1:
I CHECK HARNESS BETWEEN ECM AND
FUEL INJECTOR CONNECTOR.
Measure the resistance of harness between
ECM and fuel injector connector.
Connector & terminal
(8137) No. 1 - Chassis ground:
(8136) No. 6 - Chassis ground:
(8136) No. 5 - Chassis ground:
(8136) No. 4 - Chassis ground:
P CHECK EACH FUEL INJECTOR.
1)Turn the ignition switch to OFF.
2)Measure the resistance between each fuel
injector terminals.
Terminals
NO. 1 -NO. 2:
i CHECK POOR CONTACT.
Check poor contact in ECM connector.
~~~ ~~
Check
; the fuel injector emits “operiting” sound?
s the voltage more than 10 V?
s the resistance less than 1
2?
s the resistance less than 1
A?
s the resistance between 5
ind 20 Q?
s there poor contact in ECM
:onnector?
Yes
;heck the fuel
bressure. AE(D0HC
NSPECTION,
-uel Pressure.>
20 to step 3.
-URBO)-27,
30 to step 4.
qepair ground
short circuit in harless between
ECM and fuel
njector connector.
So to step 6.
Repair poor contact in ECM connector.
No 20 to step 2.
3epair harness
ind connector.
qOTE:
n this case, repaii
he following:
1 Open circuit in
iarness between
nain relay and fuel
njector connector
1 Poor contact in
nain relay connec,
:or
1 Poor contact in
:oupling connectol
1 Poor contact in
‘uel injector conlector
qepair harness
and connector.
MOTE:
in this case, repai
the following:
1 Open circuit in
iarness between
ECM and fuel
njector connector
1 Poor contact in
:oupling connect0
So to step 5.
Replace the faulty
fuel injector.
Inspection using
“General Diagnostic Table”. EN(D0HC
TURBO)-372,
INSPECTION,
General Diagnostic Table.>
EN(D0HC TURBO)-79
LIST OF DIAGNOSTIC TROUBLE CODE (DTC)
ENGINE (DIAGNOSTICS)
17.List of Diagnostic Trouble Code (DTC)
A: LIST
DTC
No.
PO031
Item Index

SENSOR HEATER CIRCUIT LOW INPUT -, Diagnostic Procedure with
Diagnostic Trouble Code (DTC).>

SENSOR HEATER CIRCUIT HIGH INPUT -, Diagnostic Procedure with
Diagnostic Trouble Code (DTC).>

HEATER CIRCUIT MALFUNCTION -, Diagnostic Procedure with Diagnostic Trouble Code (DTC).>

HEATER CIRCUIT HIGH INPUT -, Diagnostic Procedure with Diagnostic
Trouble Code (DTC).>

Diagnostic Procedure with Diagnostic Trouble Code (DTC).>

SOR CIRCUIT LOW INPUT -, Diagnostic Procedure with Diagnostic Trouble Code (DTC).>

SOR CIRCUIT HIGH INPUT -, Diagnostic Procedure with Diagnostic Trouble Code (DTC).>

CIRCUIT RANGE/PERFORMANCE PROBLEM (LOW INPUT) -, Diagnostic Procedure with Diagnostic Trouble Code (DTC).>

CIRCUIT LOW INPUT -, Diagnostic Procedure with Diagnostic Trouble
Code (DTC).>

CIRCUIT HIGH INPUT -, Diagnostic Procedure with Diagnostic Trouble
Code (DTC).>

TURE SENSOR CIRCUIT RANGE/PERFORMANCE PROBLEM -, Diag-
nostic Procedure with Diagnostic Trouble Code (DTC).>

TURE SENSOR CIRCUIT LOW INPUT -, Diagnostic Procedure with Diagnostic Trouble Code (DTC).>

TURE SENSOR CIRCUIT HIGH INPUT -, Diagnostic Procedure with Diagnostic Trouble Code (DTC).>

PERATURE SENSOR CIRCUIT LOW INPUT -, Diagnostic Procedure with
Diagnostic Trouble Code (DTC).>

PERATURE SENSOR CIRCUIT HIGH INPUT -, Diagnostic Procedure with
Diaqnostic Trouble Code (DTC).>
SOR CIRCUIT RANGE/PERFORMANCE PROBLEM (HIGH INPUT) -,
Front oxygen (NF) sensor heater circuit low input
Front oxygen (NF) sensor heater circuit high input
PO032
PO037
PO038
Rear oxygen sensor heater circuit
malfunction
Rear oxygen sensor heater circuit
high input
Mass air flow sensor circuit range/
performance problem (high input)
PO1 01
PO1 02
PO1 03
Mass air flow sensor circuit low input
Mass air flow sensor circuit high
input
Pressure sensor circuit range/pedormance problem (low input)
PO1 06
PO1 07
PO1 08
Pressure sensor circuit low input
Pressure sensor circuit high input
Intake air temperature sensor circuit
range/performance problem
PO1 11
PO1 12
PO113
Intake air temperature sensor circuit
low input
Intake air temperature sensor circuit
high input
Engine coolant temperature Sensor
circuit low input
PO117
PO1 18
PO121
Engine coolant temperature sensor
circuit high input
Throttle position sensor circuit range/
performance problem (high input)

, Diagnostic Procedure with Diagnostic Trouble Code (DTC).>

SENSOR CIRCUIT LOW INPUT -, Diagnostic Procedure with Diagnostic
Trouble Code (DTC).>
SENSOR CIRCUIT RANGE/PERFORMANCE PROBLEM (HIGH INPUT) -
POI 22 Throttle position sensor circuitlow
input
EN(D0HC TURBO)-80
-
LIST OF DIAGNOSTIC TROUBLE CODE (DTC)
ENGINE (DIAGNOSTICS)
PO1 23
DTC No. I
Throttle position sensor circuit high
input
Item
PO1 31 Front oxygen (NF) sensor circuit
range/performance problem (low
inDut)
PO1 25 Insufficient coolant temperature for
closed loop fuel control
PO128 Thermostat malfunction
PO1 36 Rear oxygen sensor circuit malfunction
PO132
PO1 33 slow response Front oxygen (NF) sensor circuit range/performance problem (high input) Front oxygen (NF) sensor circuit
PO1 72 Fuel trim malfunction (NF too rich)
Rear oxygen sensor circuit slow
response
Fuel trim malfunction (NF too lean) PO1 71
PO244
PO245
PO246
Wastegate control solenoid valve
malfunction (high input)
Wastegate control solenoid valve circuit low input
Wastegate control solenoid valve circuit high input
PO181 Fuel temperature sensor A circuit
range/performance problem
PO182 Fuel temperature sensor A circuit low +------ input
PO303
Fuel temperature sensor A circuit
high input I
Cylinder 3 misfire detected
PO304
PO301 Cylinder 1 misfire detected
Cylinder 4 misfire detected
I
Index

SENSOR CIRCUIT HIGH INPUT -, Diagnostic Procedure with Diagnostic
Trouble Code (DTC).>

TEMPERATURE FOR CLOSED LOOP FUEL CONTROL -, Diagnostic
Procedure with Diaanostic Trouble Code ( D T C b

FUNCTION -, Diagnostic Procedure with Diagnostic Trouble Code (DTC).>

Diaanostic Procedure with Diaanostic Trouble Code (DTC).>
SENSOR CIRCUIT RANGE/PERFORMANCE PROBLEM (LOW INPUT) -,

, Diagnostic Procedure with Diagnostic Trouble Code (DTC).>

SENSOR CIRCUIT SLOW RESPONSE -, Diagnostic Procedure with Diagnostic Trouble Code (DTC).>

CIRCUIT MALFUNCTION -, Diagnostic Procedure with Diagnostic Trouble
Code ( D T C b
SENSOR CIRCUIT RANGE/PERFORMANCE PROBLEM (HIGH INPUT) -

CIRCUIT SLOW RESPONSE -, Diagnostic Procedure with Diagnostic
Trouble Code (DTC).>

TION (NF TOO LEAN) -, Diagnostic Procedure with Diagnostic Trouble
Code (DTC).>

TION (NF TOO RICH) -, Diagnostic Procedure with Diagnostic Trouble
Code (DTC).>

SENSOR A CIRCUIT RANGE/PERFORMANCE PROBLEM -, Diagnostic
Procedure with Diagnostic Trouble Code (DTC).>

SENSOR A CIRCUIT LOW INPUT -, Diagnostic Procedure with Diagnostic
Trouble Code (DTC).>

SENSOR A CIRCUIT HIGH INPUT -, Diagnostic Procedure with Diagnostic
Trouble Code (DTC).>

SOLENOID VALVE MALFUNCTION (HIGH INPUT) -, Diagnostic Procedure with Diagnostic Trouble Code (DTC).>

SOLENOID VALVE CIRCUIT LOW INPUT -, Diagnostic Procedure with
Diagnostic Trouble Code (DTC).>

SOLENOID VALVE CIRCUIT HIGH INPUT -, Diagnostic Procedure with
Diaanostic Trouble Code ( D T C b

DETECTED -, Diagnostic Procedure with Diagnostic Trouble Code (DTC).>

DETECTED -. Diaanostic Procedure with Diaanostic Trouble Code (DTC).>

DETECTED -, Diagnostic Procedure with Diagnostic Trouble Code (DTC).>

DETECTED -, Diagnostic Procedure with Diagnostic Trouble Code (DTC).>
EN(D0HC TURBO)-81
LIST OF DIAGNOSTIC TROUBLE CODE (DTC)
ENGINE (DIAGNOSTICS)
DTC
No.
PO327
PO328
PO335
PO336
PO340
PO341
PO420
PO442
PO444
PO445
PO447
PO448
PO451
PO452
'0453
'0461
'0462 .
'0463
Item
Knock sensor circuit low input
Knock sensor circuit high input
Crankshaft position sensor circuit
malfunction
Crankshaft position sensor circuit
range/performance problem
Camshaft position sensor circuit malfunction
Camshaft position sensor circuit
range/performance problem
Catalyst system efficiency below
threshold
Evaporative emission control system
malfunction
Evaporative emission control system
purge control valve circuit low input
~ _ _ _ _
Evaporative emission control system
purge control valve circuit high input
Evaporative emission control system
vent control low input
Evaporative emission control system
vent control high input
Evaporative emission control system
pressure sensor range/performance
problem
Evaporative emission control system
pressure sensor low input
Evaporative emission control system
pressure sensor high input
Fuel level sensor circuit range/performance problem
Fuel level sensor circuit low input
Fuel level sensor circuit high input
Index

CUIT LOW INPUT -, Diagnostic Procedure with Diagnostic Trouble Code
(DTC) .>

CUIT HIGH INPUT -, Diagnostic Procedure with Diagnostic Trouble Code
(DTC).>

SENSOR CIRCUIT MALFUNCTION -, Diagnostic Procedure with Diagnos
tic Trouble Code (DTC).>
Circuit Range/Performance Problem -, Diagnostic Procedure with Diagnos
tic Trouble Code (DTC).>

SENSOR CIRCUIT MALFUNCTION -, Diagnostic Procedure with Diagnos.
tic Trouble Code (DTC).>

SENSOR CIRCUIT RANGE/PERFORMANCE PROBLEM -, Diagnostic
Procedure with Diagnostic Trouble Code (DTC).>

EFFICIENCY BELOW THRESHOLD -, Diagnostic Procedure with Diagnostic Trouble Code (DTC).>

SION CONTROL SYSTEM MALFUNCTION -, Diagnostic Procedure with
Diagnostic Trouble Code (DTC).>

SION CONTROL SYSTEM PURGE CONTROL VALVE CIRCUIT LOW
INPUT -, Diagnostic Procedure with Diagnostic Trouble Code (DTC).>

SION CONTROL SYSTEM PURGE CONTROL VALVE CIRCUIT HIGH
INPUT -, Diagnostic Procedure with Diagnostic Trouble Code (DTC).>

SION CONTROL SYSTEM VENT CONTROL LOW INPUT -, Diagnostic
Procedure with Diagnostic Trouble Code (DTC).>

SION CONTROL SYSTEM VENT CONTROL HIGH INPUT -, Diagnostic
Procedure with Diagnostic Trouble Code (DTC).>

MANCE PROBLEM -, Diagnostic Procedure with Diagnostic Trouble Code
(DTC).>

SION CONTROL SYSTEM PRESSURE SENSOR LOW INPUT -, Diagnostic Procedure with Diagnostic Trouble Code (DTC).>

SION CONTROL SYSTEM PRESSURE SENSOR HIGH INPUT -, Diag-
nostic Procedure with Diagnostic Trouble Code (DTC).>

CIRCUIT RANG E/PERFORMANCE PROBLEM -, Diagnostic Procedure
with Diagnostic Trouble Code (DTC).>

CIRCUIT LOW INPUT -, Diagnostic Procedure with Diagnostic Trouble
Code (DTC).>

CIRCUIT HIGH INPUT -, Diagnostic Procedure with Diagnostic Trouble
Code (DTC).>
SION CONTROL SYSTEM PRESSURE SENSOR RANGE/PERFOR-
EN(D0HC TURBO)-82
LIST OF DIAGNOSTIC TROUBLE CODE (DTC)
ENG I N E (DIAGNOSTICS)
Item
Fuel level sensor intermittent input
Cooling fan relay 1 circuit low input
Cooling fan function problem
Vehicle speed sensor malfunction
Idle control system RPM lower than
expected
Idle control system RPM higher than
expected
Idle control system circuit low input
Idle control system circuit high input
Starter switch circuit high input
Exhaust gas temperature sensor circuit low input
Exhaust gas temperature sensor circuit high input
Internal control module memory
check sum error
Brake switch input malfunction
Transmission range sensor circuit
malfunction
Transmission fluid temperature sensor circuit malfunction
Torque converter turbine speed sensor circuit malfunction
Output speed sensor (vehicle speed
sensor 2) circuit malfunction
Engine speed input circuit malfunction
Gear 1 incorrect ratio
Gear 2 incorrect ratio
Gear 3 incorrect ratio
DTC
No. Index

INTERMITTENT INPUT-, Diagnostic Procedure with Diagnostic Trouble
Code (DTC).>

CIRCUIT LOW INPUT -, Diagnostic Procedure with Diagnostic Trouble
Code (DTC).>

TlON PROBLEM -, Diagnostic Procedure with Diagnostic Trouble Code
(DTC).>

SOR MALFUNCTION -, Diagnostic Procedure with Diagnostic Trouble
Code (DTC).>

RPM LOWER THAN EXPECTED -, Diagnostic Procedure with Diagnostic
Trouble Code (DTC).>

RPM HIGHER THAN EXPECTED -, Diagnostic Procedure with Diagnostic
Trouble Code (DTC).>

CIRCUIT LOW INPUT -, Diagnostic Procedure with Diagnostic Trouble
Code (DTC).>

CIRCUIT HIGH INPUT -, Diagnostic Procedure with Diagnostic Trouble
Code (DTC).>

CUlT HIGH INPUT -, Diagnostic Procedure with Diagnostic Trouble Code
(DTC).>

ATURE SENSOR CIRCUIT LOW INPUT -, Diagnostic Procedure with
Diagnostic Trouble Code (DTC).>

ATURE SENSOR CIRCUIT HIGH INPUT -, Diagnostic Procedure with
Diagnostic Trouble Code (DTC).>

MODULE MEMORY CHECK SUM ERROR -, Diagnostic Procedure with
Diagnostic Trouble Code (DTC).>

MALFUNCTION -, Diagnostic Procedure with Diagnostic Trouble Code
(DTC). >
No-Diagnostic Trouble Code (DTC).>


SOR, Diagnostic Procedure with Diagnostic Trouble Code (DTC).>

with Diagnostic Trouble Code (DTC).>

RATIO -, Diagnostic Procedure with Diagnostic Trouble Code (DTC).>

RATIO -, Diagnostic Procedure with Diagnostic Trouble Code (DTC).>

RATIO -, Diagnostic Procedure with Diagnostic Trouble Code (DTC).>
PO464
PO480
PO483
PO500
PO506
PO507
PO508
PO509
PO51 2
PO545
PO546
PO604
PO703
PO705
PO71 0
PO71 5
PO720
PO725
PO731 -.
PO732
PO733
EN(D0HC TURBO)-83
LIST OF DIAGNOSTIC TROUBLE CODE (DTC)
ENGINE (DIAGNOSTICS)
DTC
No.
PO734
PO741
PO743
PO748
PO753
PO758
PO778
PO785
P i 086
P1087
P i 088
P i 089
P i 090
Pi091
P i 092
P1093
Pi094
P i 095
Pi096 .
P i 097
Item
Gear 4 incorrect ratio
Torque converter clutch system malfunction
Torque converter clutch system
(Lock-up duty solenoid) electrical
Pressure control solenoid (Line pressure duty solenoid) electrical
Shift solenoid A (Shift solenoid 1)
electrical
Shift solenoid B (Shift solenoid 2)
electrical
2-4 brake pressure control solenoid
valve (2-4 brake duty solenoid) circuit
malfunction
2-4 brake timing control solenoid
valve (2-4 brake timing solenoid) circuit malfunction
Tumble generator valve #2 (LH) position sensor circuit low input
Tumble generator valve #2 (LH) position sensor circuit high input
Tumble generator valve #I (RH) position sensor circuit low input
Tumble generator valve #I (RH) position sensor circuit high input
Tumble generator valve #I (RH) malfunction (stuck open)
Tumble generator valve #I (RH) malfunction (stuck close)
Tumble generator valve #2(LH) malfunction (stuck open)
Tumble generator valve #2(LH) malfunction (stuck close)
Tumble generator valve circuit #I
(opencircuit)
Tumble generator valve circuit #I
(overcurren t)
Tumble generator valve circuit #2
(opencircuit)
Tumble generator valve circuit #2
(overcurrent)
Index

RATIO -, Diagnostic Procedure with Diagnostic Trouble Code (DTC).>

CLUTCH SYSTEM MALFUNCTION -, Diagnostic Procedure with Diagnostic Trouble Code (DTC).>
with Diagnostic Trouble Code (DTC).>
Procedure with Diaanostic Trouble Code [ D T C b
Diagnostic Trouble Code (DTC).>
Diagnostic Trouble Code (DTC).>



VALVE #2 (LH) POSITION SENSOR CIRCUIT LOW INPUT -, Diagnostic
Procedure with Diagnostic Trouble Code (DTC).>

VALVE #2 (LH) POSITION SENSOR CIRCUIT HIGH INPUT -, Diagnostic
Procedure with Diagnostic Trouble Code (DTC).>

VALVE #I (RH) POSITION SENSOR CIRCUIT LOW INPUT -, Diagnostic
Procedure with Diagnostic Trouble Code (DTC).>

VALVE #I (RH) POSITION SENSOR CIRCUIT HIGH INPUT -, Diagnostic
Procedure with Diagnostic Trouble Code (DTC).>

VALVE SYSTEM #I (RH) MALFUNCTION (STUCK OPEN) -, Diagnostic
Procedure with Diagnostic Trouble Code (DTC).>

VALVE SYSTEM #I (RH) MALFUNCTION (STUCK CLOSE) -, Diagnostic
Procedure with Diagnostic Trouble Code (DTC).>

VALVE SYSTEM #2 (LH) MALFUNCTION (STUCK OPEN) -, Diagnostic
Procedure with Diagnostic Trouble Code (DTC).>

VALVE SYSTEM #2 (LH) MALFUNCTION (STUCK CLOSE) -, Diagnostic
Procedure with Diagnostic Trouble Code (DTC).>

VALVE CIRCUIT #1 (OPEN CIRCUIT) -, Diagnostic Procedure with Diagnostic Trouble Code (DTC).>

VALVE CIRCUIT #I (OVERCURRENT) -, Diagnostic Procedure with Diagnostic Trouble Code (DTC).>

VALVE CIRCUIT #2 (OPEN CIRCUIT) -, Diagnostic Procedure with Diagnostic Trouble Code (DTC).>

VALVE CIRCUIT #2 (OVERCURRENT) -, Diagnostic Procedure with Diagnostic Trouble Code (DTC).>
EN(D0HC TURBO)-84
LIST OF DIAGNOSTIC TROUBLE CODE (DTC)
ENGINE (DIAGNOSTICS)
DTC
No.
P1110
P1111
P1112
P1130
P1131
P1134
P1139
P1141
P1142
P1146
P1230
P1244
P1245
P1301
P1312
P1400
P1420
P1443
P1480
Item
Atmospheric pressure sensor low
input
Atmospheric pressure sensor high
input
Atmospheric pressure sensor range/
performance problem
Front oxygen sensor circuit malfunction (open circuit)
Front oxygen sensor circuit malfunction (short circuit)
Front oxygen (A/F) sensor microcomputer problem
Front oxygen (A/F) sensor #1 heater
circuit perfomancehange problem
Mass air flow sensor circuit range/
perfomance problem (low input)
Throttle position sensor circuit range/
performance problem (low input)
Pressure sensor circuit range/performance problem (high input)
Fuel pump control unit maifunction
Wastegate control solenoid valve
malfunction (low input)
Wastegate control solenoid valve
malfunction (fail-safe)
Fire due to increased exhaust temperature
Exhaust temperature sensor malfunction
Fuel tank pressure control solenoid
valve circuit low input
Fuel tank pressure control solenoid
valve circuit high input
Evaporative emission control system
vent control function problem
Cooling fan relay 1 circuit high input
Index

SURE SENSOR CIRCUIT LOW INPUT -, Diagnostic Procedure with Diagnostic Trouble Code (DTC).>


SURE SENSOR CIRCUIT RANGE/PERFORMANCE PROBLEM -, Diag-
nostic Procedure with Diagnostic Trouble Code (DTC).>

SENSOR CIRCUIT MALFUNCTION (OPEN CIRCUIT) -, Diagnostic Procedure with Diagnostic Trouble Code (DTC).>

SENSOR CIRCUIT MALFUNCTION (SHORT CIRCUIT) -, Diagnostic Procedure with Diagnostic Trouble Code (DTC).>

SENSOR MICRO-COMPUTER PROBLEM -, Diagnostic Procedure with
Diagnostic Trouble Code (DTC).>

Diagnostic Procedure with Diagnostic Trouble Code (DTC).>

Diagnostic Procedure with Diagnostic Trouble Code (DTC).>

Diagnostic Procedure with Diagnostic Trouble Code (DTC).>

CIRCUIT RANGE/PERFORMANCE PROBLEM (HIGH INPUT) -, Diagnostic Procedure with Diagnostic Trouble Code (DTC).>

LER MALFUNCTION -, Diagnostic Procedure with Diagnostic Trouble
Code (DTC).>

Diagnostic Procedure with Diagnostic Trouble Code (DTC).>

SOLENOID VALVE MALFUNCTION (FAIL-SAFE) -, Diagnostic Procedure
with Diagnostic Trouble Code (DTC).>

INCREASED EXHAUST TEMPERATURE -, Diagnostic Procedure with
Diagnostic Trouble Code (DTC).>

ATURE CIRCUIT MALFUNCTION -, Diagnostic Procedure with Diagnostic
Trouble Code ( D T C b
SENSOR #1 HEATER CIRCUIT RANGE/PERFORMANCE PROBLEM -,
SOR CIRCUIT RANGE/PERFORMANCE PROBLEM (LOW INPUT) -,
SENSOR CIRCUIT RANGWPERFORMANCE PROBLEM (LOW INPUT) -,
SOLENOID VALVE RANGWPERFORMANCE PROBLEM (LOW INPUT) -,

CONTROL SOLENOID VALVE CIRCUIT LOW INPUT -, Diagnostic Procedure with Diagnostic Trouble Code (DTC).>

CONTROL SOLENOID VALVE CIRCUIT HIGH INPUT -, Diagnostic Procedure with Diagnostic Trouble Code (DTC).>

Diaanostic Procedure with Diaanostic Trouble Code ( D T C b
SION CONTROL SYSTEM VENT CONTROL FUNCTION PROBLEM -,

CIRCUIT HIGH INPUT -, Diagnostic Procedure with Diagnostic Trouble
Code (DTC).>
EN(D0HC TURBO)-85
LIST OF DIAGNOSTIC TROUBLE CODE (DTC)
ENGINE f DIAGNOSTICS)
DTC
No.
P I 507
PI51 8
PI544
PI560
Item Index
Idle control system malfunction (failsafe)
Starter switch circuit low input

MALFUNCTION (FAIL-SAFE) -, Diagnostic Procedure with Diagnostic
Trouble Code (DTC).>

CUlT LOW INPUT -, Diagnostic Procedure with Diagnostic Trouble Code
(DTC) .>

PERATURE DETECTED -, Diagnostic Procedure with Diagnostic Trouble
Code (DTC).>
Malfunction -.>
High exhaust temperature detected
Back-up voltage circuit malfunction
~
P I 590
PI591
PI 596
PI 594
Automatic transmission diagnosis
input signal circuit high input
Neutral position switch circuit high
input
PI699
PI700
PI 701
PI703
PI711
P1712
Neutral position switch circuit low
input
Engine torque control cut signal circuit high input
Throttle position sensor circuit malfunction for automatic transmission
Cruise control set signal circuit malfunction for automatic transmission
Low clutch timing control solenoid
valve circuit malfunction
Engine torque control signal 1 circuit
malfunction
Engine torque control signal 2 circuit
malfunction

TROL CUT SIGNAL CIRCUIT HIGH INPUT -, Diagnostic Procedure with
Diagnostic Trouble Code (DTC).>


SIGNAL CIRCUIT MALFUNCTION FOR AUTOMATIC TRANSMISSION -,
Diagnostic Procedure with Diagnostic Trouble Code (DTC).>


TROL SIGNAL 1 CIRCUIT MALFUNCTION -, Diagnostic Procedure with
Diagnostic Trouble Code (DTC).>

TROL SIGNAL 2 CIRCUIT MALFUNCTION -, Diagnostic Procedure with
Diagnostic Trouble Code (DTC).>
Automatic transmission diagnosis
input signal circuit malfunction

SWITCH CIRCUIT HIGH INPUT -, Diagnostic Procedure with Diagnostic
Trouble Code (DTC).>

SWITCH CIRCUIT LOW INPUT -, Diagnostic Procedure with Diagnostic
Trouble Code (DTC).>

SION DIAGNOSIS INPUT SIGNAL CIRCUIT MALFUNCTION -, Diagnostic
Procedure with Diaanostic Trouble Code ( D T C b
PI595 Automatic transmission diagnosis
input signal circuit low input
P I 698 Engine torque control cut signal circuit low input

SION DIAGNOSIS INPUT SIGNAL CIRCUIT LOW INPUT -, Diagnostic
Procedure with Diagnostic Trouble Code (DTC).>

SION DIAGNOSIS INPUT SIGNAL CIRCUIT HIGH INPUT -, Diagnostic
Procedure with Diagnostic Trouble Code (DTC).>

TROL CUT SIGNAL CIRCUIT LOW INPUT -, Diagnostic Procedure with
Diaanostic Trouble Code ( D T C b
EN(D0HC TURBO)-86
LIST OF DIAGNOSTIC TROUBLE CODE (DTC)
ENGINE (DIAGNOSTICS)
EN(D0HC TURBO)-87
DIAGNOSTIC PROCEDURE WITH DIAGNOSTIC TROUBLE CODE (DTC)
ENGINE (DIAGNOSTICS)
18.Diagnostic Procedure with Diagnostic Trouble Code (DTC)
A: DTC PO031 - FRONT OXYGEN (NF) SENSOR HEATER CIRCUIT LOW IN-
PUT -
DTC DETECTING CONDITION:
CAUTION:
After repair or replacement of faulty parts, conduct Clear Memory Mode and Inspection Mode .
WIRING DIAGRAM:
Immediately at fault recognition
MAIN RELAY BATTERY
SBF-5
n FRONTOXYGEN
EN1 143
EN(D0HC TURBO)-88
DIAGNOSTIC PROCEDURE WITH DIAGNOSTIC TROUBLE CODE (DTC)
ENGINE (DIAGNOSTICS)
Step
CHECK ANY OTHER DTC ON DISPLAY.
CHECK POWER SUPPLY TO FRONT OXY-
GEN (NF) SENSOR.
1)Turn the ignition switch to OFF.
2)Disconnect the connector from front oxygen
(NF) sensor.
3)Turn the ignition switch to ON.
4)Measure the voltage between front oxygen
(NF) sensor connector and engine ground.
Connector & terminal
(8 18) No. 2 (+) - Engine ground (-):
CHECK GROUND CIRCUIT OF ECM.
Measure the resistance of harness between
ECM connector and chassis ground.
Connector & terminal
(8137) No. 8 - Chassis ground:
(8137) No. 9 - Chassis ground:
CHECK CURRENT DATA.
1)Start the engine.
2)Read the data of front oxygen (NF) sensor
heater current using Subaru Select Monitor or
OBD-ll general scan tool.
NOTE:
*Subaru Select Monitor
For detailed operation procedure, refer to the
“READ CURRENT DATA FOR ENGINE.
to EN(D0HC TURBO)-38, Subaru Select Mon
itor.>
*OBD-II scan tool
For detailed operation procedures, refer to the
OBD-II General Scan Tool Instruction Manual.
CHECK OUTPUT SIGNAL FROM ECM.
1)Start and idle the engine.
2)Measure the voltage between ECM connector and chassis ground.
Connector & terminal
. (8137) No. 4 (+) - Chassis ground (-):
(8137) No. 5 (+) - Chassis ground (-):
CHECK OUTPUT SIGNAL FROM ECM.
Measure the voltage between ECM connector
and chassis ground.
Connector & terminal
(8 137) No. 4 (+) - Chassis ground (-)I
(8137) No. 5 (+) - Chassis ground (-)I
Check
)oes the Subaru Select Moni3r or OBD-II general scan tool
idicate DTC PO031 and
’0037 at the same time?
s the voltage more than 10 V?
s the resistance less than 5
2?
s the value more than 0.2 A?
s the voltage less than 1 .O V?
Ioes the voltage change less
han 1 .O V by shaking harness
md connector of ECM while
nonitoring the value with voltige meter?
Yes
i o to step 2.
i o to step 3.
;o to step 4.
3epair poor conact in connector.
JOTE:
n this case, repaii
he following:
I Poor contact in
ront oxygen (NF)
jensor connector
1 Poor contact in
ECM connector
30 to step 7.
3epair poor conact in ECM conlector.
No Go to step 5.
Repair power supply line.
NOTE:
In this case, repaii
the following:
* Open circuit in
harness between
main relay and
front oxygen (NF)
sensor connector
* Poor contact in
front oxygen (NF)
sensor connector
Poor contact in
main relay connec.
tor
Repair harness
and connector.
NOTE:
In this case, repaii
the following:
Open circuit in
harness between
ECM and engine
ground terminal
9 Poor contact in
ECM connector
Poor contact in
coupling connectoi
Go to step 5.
Go to step 6.
Go to step 7.
EN(D0HC TURBO)-89
DIAGNOSTIC PROCEDURE WITH DIAGNOSTIC TROUBLE CODE (DTC)
ENGINE (DIAGNOSTICS)
Step
r CHECK FRONT OXYGEN (NF) SENSOR.
Check Yes
Is the resistance less than 10 Repair harness
2)Measure the resistance between front oxygen (NF) sensor connector terminals.
Terminals
NO. 2 -NO. 1:
1)Turn the ignition switch to OFF. R?
NOTE:
In this case, repair
the following:
Open or ground
short circuit in harness between front
oxygen (NF) sensor and ECM connector
Poor contact in
front oxygen (NF)
sensor connector
Poor contact in
ECM connector
and connector.
No Replace the front
oxygen (NF) sensor. FU(D0HC
TURBO)-42, Front
Oxygen (NF) Sensor.>
EN(D0HC TURBO)-QO
DIAGNOSTIC PROCEDURE WITH DIAGNOSTIC TROUBLE CODE (DTC)
EN G I NE (D I AG NOSTl CS)
EN(D0HC TURBO)-91
DIAGNOSTIC PROCEDURE WITH DIAGNOSTIC TROUBLE CODE (DTC)
ENGINE (DIAGNOSTICS)
B: DTC PO032 - FRONT OXYGEN (NF) SENSOR HEATER CIRCUIT HIGH IN-
PUT -
DTC DETECTING CONDITION:
CAUTION:
After repair or replacement of faulty parts, conduct Clear Memory Mode and Inspection Mode .
WIRING DIAGRAM:
Immediately at fault recognition
MAIN RELAY BATTERY
I
SBF-5
k! FRONT OXYGEN
EN1 143
EN(D0HC TURBO)-92
DIAGNOSTIC PROCEDURE WITH DIAGNOSTIC TROUBLE CODE (DTC)
ENGINE (DIAGNOSTICS)
Check
s the voltage more than 8 V?
s the value more than 2.3 A?
Step
CHECK OUTPUT SIGNAL FROM ECM.
1)Turn the ignition switch to ON.
2)Measure the voltage between ECM connector and chassis ground.
Connector & terminal
(8137) No. 4 (+) - Chassis ground (-)I
(8137) No. 5 (+) - Chassis ground (-):
CHECK FRONT OXYGEN ( N F ) SENSOR
HEATER CURRENT.
1)Turn the ignition switch to OFF.
2)Repair the battery short circuit in harness
between ECM and front oxygen (NF) sensor
connector.
3)Turn the ignition switch to ON.
4)Read the data of front oxygen (NF) sensor
heater current using Subaru Select Monitor or
the OBD-ll general scan tool.
NOTE:
*Subaru Select Monitor
For detailed operation procedure, refer to the
“READ CURRENT DATA FOR ENGINE.
tq EN(D0HC TURBO)-38, Subaru Select Monitor.>
*OED41 general scan tool
For detailed operation procedure, refer to the
OBD-ll General Scan Tool Instruction Manual.
CHECK OUTPUT SIGNAL FROM ECM.
Measure the voltage between ECM connector
and chassis ground.
Connector & terminal
(8137) No. 4 (+) - Chassis ground (-):
(8137) No. 5 (+) - Chassis ground (-):
Yes
Go to step 3.
Replace the ECM.
Engine Control
TURBO)-47,
Module.>
ige meter? oxygen (NF) sensor connector.
No i o to step 2.
END
END
EN( DOHC TU RB0)-93
c DIAGNOSTIC PROCEDURE WITH DIAGNOSTIC TROUBLE CODE (DTC)
ENGINE (DIAGNOSTICS)
C: DTC PO037 - REAR OXYGEN SENSOR HEATER CIRCUIT MALFUNCTION
DTC DETECTING CONDITION:
CAUTION:
After repair or replacement of faulty parts, conduct Clear Memory Mode and Inspection Mode .
WIRING DIAGRAM:
Two consecutive driving cycles with fault
MAIN RELAY
-
1
BATTERY -
EN1 144
EN(D0HC TURBO)-94
DIAGNOSTIC PROCEDURE WITH DIAGNOSTIC TROUBLE CODE (DTC)
ENGINE (DIAGNOSTICS)
Yes
20 to step 2.
3epair the conStep
CHECK GROUND CIRCUIT OF ECM.
1)Turn the ignition switch to OFF.
2)Disconnect the connector from ECM.
3)Measure the resistance of harness between
ECM connector and chassis ground.
Connector & terminal
(8137) No. 8 - Chassis ground:
(8137) No. 9 - Chassis ground:
No Repair harness
and connector.
NOTE:
In this case, repair
the following:
Open circuit in
harness between
ECM and engine
ground terminal
Poor contact in
ECM connector
Poor contact in
coupling connector
Go to step 3. ! CHECK CURRENT DATA.
1)Start the engine.
2)Read the data of rear oxygen sensor heater
current using Subaru Select Monitor or OBD-ll
general scan tool.
NOTE:
*Subaru Select Monitor
For detailed operation procedure, refer to the
“QEAD CURRENT DATA FOR ENGINE”.
to EN(D0HC TURBO)-38, Subaru Select Monitor.>
*OBD-I1 scan tool
For detailed operation procedures, refer to the
OBD-ll General Scan Tool Instruction Manual.
CHECK OUTPUT SIGNAL FROM ECM.
1)Start and idle the engine.
2)Measure the voltage between ECM connector and chassis ground.
I
Connector & terminal
(8136) No. 13 (+) - Chassis ground (-)I
CHECK OUTPUT SIGNAL FROM ECM.
Measure the voltage between ECM connector
and chassis ground.
I
Connector & terminal
(8136) No. 13 (+) - Chassis ground (-):
CHECK OUTPUT SIGNAL FROM ECM.
1)Disconnect the connector from rear oxygen
sensor.
2)Measure the voltage between ECM connector and chassis ground.
1
Connector & terminal
(8 136) No. 13 (+) - Chassis ground (-):
loes the voltage change less
han 1 .O V by shaking harness
ind connector of ECM while
nonitoring the value with voltige meter?
s the voltage less than 1 .O V?
Check
s the resistance less than 5
2?
Repair poor contact in ECM connector.
Go to step 5.
Replace the ECM. Repair battery
Engine Control ECM and rear oxyModule.> gen sensor connector. After
repair, replace the
ECM. FU(D0HC
Engine Control
Module.>
TURBO)-47,
s the value more than 0.2 A?
Go to step 4.
EN(D0HC TURBO)-95
DIAGNOSTIC PROCEDURE WITH DIAGNOSTIC TROUBLE CODE (DTC)
ENGINE (DIAGNOSTICS)
s the resistance less than 30
2?
Step
CHECK POWER SUPPLY TO REAR OXY-
GEN SENSOR.
1)Turn the ignition switch to OFF.
2)Disconnect the connector from rear oxygen
sensor.
3)Turn the ignition switch to ON.
4)Measure the voltage between rear oxygen
sensor connector and engine ground or chassis ground.
Connector & terminal
(B19) No. 2 (+) - Chassis ground (-)I
Repair harness
and connector.
NOTE:
In this case, repair
the following:
Open circuit in
harness between
rear oxygen sensor and ECM connector
Poor contact in
rear oxygen sensor connector
Poor contact in
ECM connector
Poor contact in
coupling connectoi
CHECK REAR OXYGEN SENSOR.
1)Turn the ignition switch to OFF.
2)Measure the resistance between rear oxygen sensor connector terminals.
Terminals
NO. 1 -NO. 2:
Check
; the voltage more than 10 V?
Yes
30 to step 7.
No 3epair power sup)ly line.
IIOTE:
n this case, repair
he following:
Open circuit in
iarness between
nain relay and
ear oxygen senior connector
Poor contact in
ear oxygen sen;or connector
Poor contact in
:oupling connectoi
3eplace the rear
Ixygen sensor.
:Ref. to FU(D0HC
rURBO)-44, Rear
lxygen Sensor.>
EN(D0HC TURBO)-96
DIAGNOSTIC PROCEDURE WITH DIAGNOSTIC TROUBLE CODE (DTC)
ENGINE (DIAGNOSTICS)
EN( DOHC TU R BO)-97
DIAGNOSTIC PROCEDURE WITH DIAGNOSTIC TROUBLE CODE (DTC)
ENG I N E lDl AG NOSTICS)
Step
1 . CHECK INPUT SIGNAL FOR ECM.
Measure the voltage between ECM connector
and chassis ground.
Connector & terminal
(8136) No. 13 (+) - Chassis ground (-):
D: DTC PO038 - REAR OXYGEN SENSOR HEATER CIRCUIT HIGH INPUT -
DTC DETECTING CONDITION:
CAUTION:
After repair or replacement of faulty parts, conduct Clear Memory Mode and Inspection Mode .
WIRING DIAGRAM:
Two consecutive driving cycles with fault
Check
Is the voltage more than 8 V?
MAIN RELAY BATTERY
1
REAR
OXYGEN SENSOR
EN1144
EN(D0HC TURBO)-98
DIAGNOSTIC PROCEDURE WITH DIAGNOSTIC TROUBLE CODE (DTC)
ENGINE (DIAGNOSTICS)
Step
! CHECK CURRENT DATA.
1)Turn the ignition switch to OFF.
2)Repair the battery short circuit in harness
between ECM and rear oxygen sensor connector.
3)Turn the ignition switch to ON.
4)Read the data of rear oxygen sensor heater
current using Subaru Select Monitor or the
OBD-II general scan tool.
NOTE:
*Subaru Select Monitor
For detailed operation procedure, refer to the
“READ CURRENT DATA FOR ENGINE.
to EN(D0HC TURBO)-38, Subaru Select Monitor.>
*OBD-II general scan tool
For detailed operation procedure, refer to the
OBD-ll General Scan Tool Instruction Manual.
Check poor contact in ECM connector.
5 CHECK POOR CONTACT.
Check
Is the value more than 7 A?
Is there poor contact in ECM
connector?
I
Yes
Replace the ECM.
Engine Control
Module.>
TURBO)-47,
Repair poor contact in ECM connector.
No !ND
END
EN(D0HC TURBO)-99
DIAGNOSTIC PROCEDURE WITH DIAGNOSTIC TROUBLE CODE (DTC)
ENGINE (DIAGNOSTICS)
E: DTC PO101 - MASS AIR FLOW SENSOR CIRCUIT RANGE/PERFORMANCE
PROBLEM (HIGH INPUT) -
DTC DETECTING CONDITION:
Two consecutive driving cycles with fault
TROUBLE SYMPTOM:
Erroneous idling
Engine stalls.
Poor driving performance
CAUTION:
After repair or replacement of faulty parts, conduct Clear Memory Mode and Inspection Mode .
WIRING DIAGRAM:
BATTERY
SBF-5 3 c
MASS AIR FLOW AND 1 INTAKE A I Z E R A T U R E 1
ECM
r EN1 145
EN(D0HC TURBO)-I00
DIAGNOSTIC PROCEDURE WITH DIAGNOSTIC TROUBLE CODE (DTC)
ENG I NE (DIAGNOSTICS)
Yes
Inspect DTC
PO1 02 or PO1 03
using “Diagnostics Chart with
Trouble Code”.
NOTE:
In this case, it is
not necessary to
inspect DTC
PO1 01.
No Replace the mass
air flow and intake
air temprature sen,
sor. FU(D0HC
TURBO)-34, Mass
Air Flow and
intake Air Temperature Sensor.>
Step
1 CHECK ANY OTHER DTC ON DISPLAY.
EN(D0HC TURBO)-101
Check
Does the Subaru Select Monitor or OBD-II general scan tool
indicate DTC PO1 02 or PO1 03?
DIAGNOSTIC PROCEDURE WITH DIAGNOSTIC TROUBLE CODE (DTC)
ENGINE (DIAGNOSTICS)
F: DTC PO102 - MASS AIR FLOW SENSOR CIRCUIT LOW INPUT -
DTC DETECTING CONDITION:
Immediately at fault recognition
TROUBLE SYMPTOM:
Erroneous idling
Engine stalls.
Poor driving performanc
WIRING DIAGRAM:
MASS AIR FLOW AND
INTAKE AIR TEMPERATURE
EN(D0HC TURBO)-I02
DIAGNOSTIC PROCEDURE WITH DIAGNOSTIC TROUBLE CODE (DTC)
ENGINE (DIAGNOSTICS)
Step
CONNECT SUBARU SELECT MONITOR OR
READ DATA.
1)Turn the ignition switch to OFF.
2)Connect the Subaru Select Monitor or the
OBD-ll general scan tool to data link connector.
3)Turn the ignition switch to ON and Subaru
Select Monitor or the OBD-ll general scan tool
switch to ON.
4)Start the engine.
5)Read the data of mass air flow sensor signal
using Subaru Select Monitor or OBD-II general
scan tool.
NOTE:
*Subaru Select Monitor
For detailed operation procedure, refer to the
“READ CURRENT DATA FOR ENGINE.
to EN(D0HC TURBO)-38, Subaru Select Mon
itor.>
*OBD-ll general scan tool
For detailed operation procedures, refer to the
O b - l I General Scan Tool Instruction Manual.
THE OBD-ll GENERAL SCAN TOOL, AND
CHECK INPUT SIGNAL FOR ECM.
Measure the voltage between ECM connector
and chassis ground while engine is idling.
Connector & terminal
(B84) No. 13 (+) - Chassis ground (-):
CHECK INPUT SIGNAL FOR ECM (USING
SUBARU SELECT MONITOR).
Measure the voltage between ECM connector
and chassis ground while engine is idling.
CHECK POWER SUPPLY TO MASS AIR
FLOW SENSOR.
1)Turn the ignition switch to OFF.
2)Disconnect the connector from mass air flow
sensor.
3)Turn the ignition switch to ON.
4)Measure voltage between mass air flow sen,
sor connector and chassis ground.
Connector & terminal
(B3) No. 1 (+) - Chassis ground (-):
CHECK HARNESS BETWEEN ECM AND
MASS AIR FLOW SENSOR CONNECTOR.
2)Disconnect the connector from ECM.
3)Measure the resistance of harness between
ECM and mass air flow sensor connector.
- 1)Turn the ignition switch to OFF.
Connector & terminal
(B84) NO. 13 - (B3) NO. 3:
(8135) NO. 27 - (83) NO. 4:
(B 135) NO. 19 - (B3) NO. 5:
Check
3 the value equal to or more
han 1.3 g/sec (0.1 72 Ib/min) or
1.3 V and equal to or less than
140 g/sec (32 Ib/min) or 4.58
I?
s the voltage less than 0.2 V?
Ioes the voltage change more
han 0.2 V by shaking harness
ind connector of ECM while
nonitoring the value with Subtru select monitor?
s the voltage more than 1 OV?
s the resistance less than lR?
Yes
Even if MIL lights
up, the circuit has
returned to a normal condition at
this time. A temporary poor contact
of the connector or
harness may be
the cause. Repair
harness or connector in the mass
air flow sensor.
NOTE:
In this case, repaii
the following:
Open or ground
short circuit in harness between
mass air flow sensor and ECM connector
w Poor contact in
mass air flow sensor or ECM connector
Go to step 4.
Repair poor contact in ECM connector.
Go to step 5.
Go to step 6.
No ;o to step 2.
30 to step 3.
;ontact with SOA
distributor) serlice.
\IOTE:
nspection by DTN
s required, be.
:ause probablc
:ause is deteriora
ion of multiplt
iarts.
3epair open circuil
ietween mass air
low sensor and
nain relay
3epair open circuit
ietween ECM and
nass air flow sensor connector.
EN(D0HC TURBO)-IO3
DIAGNOSTIC PROCEDURE WITH DIAGNOSTIC TROUBLE CODE (DTC)
ENGINE (DIAGNOSTICS)
Repair poor contact in mass air
flow sensor connector.
Step
CHECK HARNESS BETWEEN ECM AND
MASS AIR FLOW SENSOR CONNECTOR
Measure the resistance of harness between
ECM and chassis ground.
Connector & terminal
(884) No. 13 - Chassis ground:
(8135) No. 27 - Chassis ground:
(8 135) No. 19 - Chassis ground:
CHECK POOR CONTACT
Check poor contact in mass air flow sensor
Replace the mass
air flow and intake
air temperature
sensor. FU(D0HC
TURBO)-34, Mass
Air Flow and
Intake Air Temperature Sensor.>
connector.
Check
Is the resistance more than
1 Ma?
Is there poor contact in mass
air flow sensor connector?
short circuit
between ECM and
mass air flow sensor connector.
EN(D0HC TURBO)-104
DIAGNOSTIC PROCEDURE WITH DIAGNOSTIC TROUBLE CODE (DTC)
ENGINE (DIAGNOSTICS)
EN(D0HC TURBO)-105
DIAGNOSTIC PROCEDURE WITH DIAGNOSTIC TROUBLE CODE (DTC)
EN G I N E (D I AG NOSTl CS)
G: DTC PO103 - MASS AIR FLOW SENSOR CIRCUIT HIGH INPUT -
DTC DETECTING CONDITION:
Immediately at fault recognition
TROUBLE SYMPTOM:
Erroneous idling
Engine stalls.
Poor driving performance
CAUTION:
After repair or replacement of faulty parts, conduct Clear Memory Mode and Inspection Mode .
WIRING DIAGRAM:
MAIN RELAY
BATTERY
SBF-5 3 c
MASS AIR FLOW AND I INTAKE AIR TEMPERATURE
S
EN(D0HC TURBO)-I06
DIAGNOSTIC PROCEDURE WITH DIAGNOSTIC TROUBLE CODE (DTC)
ENG I NE (DIAGNOSTICS)
Step Check
CONNECT SUBARU SELECT MONITOR OR Is the value equal to or more
THE OBD-ll GENERAL SCAN TOOL, AND than 1.3 g/sec (0.172 Ib/min) or
READ DATA. 0.3 V and equal to or less than
1)Turn the ignition switch to OFF. 240 g/sec (32 Ib/min) or 4.58
?
Yes
Even if MIL lights
up, the circuit has
returned to a normal condition at
this time. 2)Connect the Subaru Select Monitor or the
OBD-ll general scan tool to data link connector.
3)Turn the ignition switch to ON and Subaru
Select Monitor or the OBD-ll general scan tool
switch to ON.
4)Start the engine.
5) Read the data of mass air flow sensor signal
using Subaru Select Monitor or OBD-ll general
scan tool.
NOTE:
*Subaru Select Monitor
For detailed operation procedure, refer to the
“READ CURRENT DATA FOR ENGINE”.
to EN(D0HC TURBO)-38, Subaru Select Monitor.>
*OBD-ll general scan tool
For detailed operation procedures, refer to the
OBD-ll General Scan Tool Instruction Manual.
CHECK HARNESS BETWEEN ECM AND
MASS AIR FLOW SENSOR CONNECTOR.
1)Turn the ignition switch to OFF and Subaru
Select Monitor or the OBD-ll general scan tool
switch to OFF.
2)Disconnect the connector from mass air flow
sensor.
3)Turn the ignition switch to ON and Subaru
Select Monitor or the OBD-ll general scan tool
switch to ON.
4)Read the data of mass air flow sensor signal
using Subaru select monitor or OBD-ll general
scan tool.
NOTE:
*Subaru Select Monitor
For detailed operation procedure, refer to the
“READ CURRENT DATA FOR ENGINE.
to EN(D0HC TURBO)-38, Subaru Select Mon,
itor.>
*OBD-II general scan tool
For detailed operation procedures, refer to the
OBD-ll General Scan Tool Instruction Manual.
s the value more than 240 g/
iec (32 Ib/min) or 4.58 V in
unction mode F06?
Repair battery
short circuit in har,
ness between
mass air flow sensor and ECM connector. After
repair, replace the
ECM.
No o to step 2.
ieplace the mass
.ir flow sensor.
EN(D0HC TURBO)-107
DIAGNOSTIC PROCEDURE WITH DIAGNOSTIC TROUBLE CODE (DTC)
E NG IN E (D IAG NOSTlC S)
H: DTC PO106 - PRESSURE SENSOR CIRCUIT RANGE/PERFORMANCE
PROBLEM (LOW INPUT) -
DTC DETECTING CONDITION:
TROUBLE SYMPTOM:
CAUTION:
After repair or replacement of faulty parts, conduct Clear Memory Mode and Inspection Mode .
Two consecutive driving cycles with fault
Failure of engine to start
I THROTTLE BODY
EN(D0HC TURBO)-I08
DIAGNOSTIC PROCEDURE WITH DIAGNOSTIC TROUBLE CODE (DTC)
ENGINE (DIAGNOSTICS)
Yes
20 to step 2.
nspect DTC
’0107 or PO108
Step
CHECK IDLE SWITCH SIGNAL.
1)Turn the ignition switch to ON.
2)Operate the LED operation mode for engine
using Subaru Select Monitor.
NOTE:
*Subaru Select Monitor
For detailed operation procedure, refer to the
“LED OPERATION MODE FOR ENGINE.
Select Monitor.>
No Check the throttle
position sensor cir,
cuit. EN(D0HC
TURBO)-132,
DTC PO121 -
THROTTLE POSI-
TION SENSOR
CIRCUIT RANGE/
PERFORMANCE
PROBLEM (HIGH
INPUT) -, Diagnostic Procedure
with Diagnostic
Trouble Code
(DTC).>
NOTE:
In this case, it iz
not necessary tc
inspect DTC
PO1 06.
Go to step 3. ! CHECK ANY OTHER DTC ON DISPLAY.
Jsing “List of Diagiostic Trouble
:ode (DTC)”.
:Ref. to EN(D0HC
TURBO)-80, List
i f Diagnostic Troui le Code (DTC).>
VOTE:
in this case, it is
lot necessary to
nspect DTC
D0106.
30 to step 4. 1 CHECK CONDITION OF PRESSURE SENSOR.
iighten pressure
I CHECK CONDITION OF THROlTLE BODY. Replace the pressure sensor. to FU(D0HC
TURBO)-35, Pressure Sensor.>
~ _ _ _ ~ ~
Check
Ioes the LED of {Idle Switch
jignal} come on?
sensor installation
bolt securely.
Tighten throttle
body installation
bolt securely.
loes the Subaru Select Monior or OBD-ll general scan tool
ndicate DTC PO1 07 or PO1 087
s the pressure sensor installaion bolt tightened securely?
s the throttle body installation
iolt tightened securely?
EN(D0HC TURBO)-I09
DIAGNOSTIC PROCEDURE WITH DIAGNOSTIC TROUBLE CODE (DTC)
ENG IN E (DIAGNOSTICS)
I:
DTC DETECTING CONDITION:
CAUTION:
After repair or replacement of faulty parts, conduct Clear Memory Mode and Inspection Mode .
WIRING DIAGRAM:
DTC PO107 - PRESSURE SENSOR CIRCUIT LOW INPUT -
Immediately at fault recognition
THROTTLE BODY
PRESSURE
@ ECM I
EN(D0HC TURBO)-I 10
DIAGNOSTIC PROCEDURE WITH DIAGNOSTIC TROUBLE CODE (DTC)
ENGINE (DIAGNOSTICS)
Step
CHECK CURRENT DATA.
1)Start the engine.
2)Read the data of intake manifold absolute
pressure signal using Subaru Select Monitor or
OBD-ll general scan tool.
NOTE:
OSubaru Select Monitor
For detailed operation procedure, refer to the
“READ CURRENT DATA FOR ENGINE”.
to EN(D0HC TURBO)-38, Subaru Select Mon
itor.>
*OBD-ll general scan tool
For detailed operation procedures, refer to the
OBD-II General Scan Tool Instruction Manual.
Check poor contact in ECM and pressure sensor connector.
I CHECK POOR CONTACT.
I CHECK INPUT SIGNAL FOR ECM.
Measure the voltage between ECM connector
and chassis ground.
Connector & terminal
(6135) No. 9 (+) - Chassis ground (-):
CHECK INPUT SIGNAL FOR ECM.
Measure the voltage between ECM connector
and chassis ground.
Connector & terminal
(6135) No. 9 (+) - Chassis ground (-):
1 CHECK INPUT SIGNAL FOR ECM.
Measure the voltage between ECM and chassis ground.
Connector & terminal
(8135) No. 8 (+) - Chassis ground (-):
i CHECK HARNESS BETWEEN ECM AND
PRESSURE SENSOR CONNECTOR.
1)Turn the ignition switch to OFF.
2)Disconnect the connector from pressure
sensor.
3)Turn the ignition switch to ON.
4)Measure the voltage between pressure sensor connector and engine ground.
. Connector & terminal
(E21) No. 3 (+) - Engine ground (-):
Check
s the value less than -7.2 kPa
-54 mmHg, -2.1 inHg)?
s there poor contact in ECM or
)ressure sensor connector?
s the voltage more than 4.5 V?
loes the voltage change more
han 4.5 V by shaking harness
ind connector of ECM while
nonitoring the value with voltige meter?
s the voltage less than 0.7 V?
s the voltage more than 4.5 VS
Yes
20 to step 3.
3epair poor conact in ECM or
iressure sensor
:onnector.
30 to step 5.
’lepair poor conact in ECM conlector.
30 to step 6.
30 to step 7.
No 30 to step 2.
Even if MIL lights
~ p , the circuit has
.eturned to a nornal condition at
his time.
20 to step 4.
Zontact with SOA
:distributor) ser{ice.
VOTE:
‘nspection by DTk
s required, be,
:ause probablc
:ause is deteriora,
:ion of multiplc
Darts.
Zontact with SOA
:distributor) serdice.
VOTE:
Inspection by DThr
s required, be
zause probablt
zause is deteriora
tion of multiplt
Darts.
Repair open circuii
n harness
Detween ECM and
Dressure sensor
zonnector.
EN(D0HC TURBO)-1 11
DIAGNOSTIC PROCEDURE WITH DIAGNOSTIC TROUBLE CODE (DTC)
ENGINE (DIAGNOSTICSI
~ ~ ~~ ~ ~
Step
7 CHECK HARNESS BETWEEN ECM AND
PRESSURE SENSOR CONNECTOR.
1)Turn the ignition switch to OFF.
2)Disconnect the connector from ECM.
3)Measure the resistance of harness between
ECM and pressure sensor connector.
Connector & terminal
(8135) NO. 19 - (E21) NO. 2:
8 CHECK HARNESS BETWEEN ECM AND
PRESSURE SENSOR CONNECTOR.
Measure the resistance of harness between
pressure sensor connector and engine ground.
Connector & terminal
(E21) No. 1 - Engine ground:
9 CHECK POOR CONTACT.
Check poor contact in pressure sensor connector.
~
Check
Is the resistance less than 1
R?
Is the resistance more than 1
Ma?
Is there poor contact in pressure sensor connector?
Yes
~
Go to step 8.
Go to step 9.
Repair poor contact in pressure
sensor connector.
~ _ _ _ _ _ _ _
No Repair open circuit
in harness
between ECM and
pressure sensor
connector.
Repair ground
short circuit in harness between
ECM and pressure
sensor connector.
Replace the pressure sensor. to FU(D0HC
TURBO)-35, Pressure Sensor.>
EN(D0HC TURBO)-1 12
DIAGNOSTIC PROCEDURE WITH DIAGNOSTIC TROUBLE CODE (DTC)
ENGINE (DIAGNOSTICS)
EN(D0HC TURBO)-I 13
DIAGNOSTIC PROCEDURE WITH DIAGNOSTIC TROUBLE CODE (DTC)
ENGINE (DIAGNOSTICS)
J: DTC PO108 - PRESSURE SENSOR CIRCUIT HIGH INPUT -
DTC DETECTING CONDITION:
CAUTION:
After repair or replacement of faulty parts, conduct Clear Memory Mode and Inspection Mode .
WIRING DIAGRAM:
Immediately at fault recognition
PRESSURE SE
THROTTLE BODY
EN(D0HC TURBO)-1 14
DIAGNOSTIC PROCEDURE WITH DIAGNOSTIC TROUBLE CODE (DTC)
ENG I NE (DIAGNOSTICS)
Yes
20 to step 9.
Step
CHECK CURRENT DATA.
1 )Start the engine.
2)Read the data of intake manifold absolute
pressure signal using Subaru Select Monitor or
OBD-II general scan tool.
NOTE:
Gubaru Select Monitor
For detailed operation procedure, refer to the
“READ CURRENT DATA FOR ENGINE”.
to EN(D0HC TURBO)-38, Subaru Select Monitor.>
*OBD-ll general scan tool
For detailed operation procedures, refer to the
OBD-ll General Scan Tool Instruction Manual.
CHECK INPUT SIGNAL FOR ECM.
Measure the voltage between ECM connector
and chassis ground.
Connector & terminal
(8135) No. 9 (+) - Chassis ground (-):
CHECK INPUT SIGNAL FOR ECM.
Measure the voltage between ECM connector
gnd chassis ground.
,
Connector & terminal
(8135) No. 9 (+) - Chassis ground (-):
No Go to step 2.
1 CHECK INPUT SIGNAL FOR ECM.
Measure the voltage between ECM connector
and chassis ground.
Connector & terminal
(8135) No. 8 (+) - Chassis ground (-):
I
I CHECK HARNESS BETWEEN ECM AND
PRESSURE SENSOR CONNECTOR.
1)Turn the ignition switch to OFF.
2)Disconnect the connector from pressure
sensor.
3)Turn the ignition switch to ON.
4)Measure the voltage between pressure sensor connector and engine ground.
Connector & terminal
(E21) No. 3 (+) - Engine ground (-):
i CHECK HARNESS BETWEEN ECM AND
PRESSURE SENSOR CONNECTOR.
1)Turn the ignition switch to OFF.
. 2)Disconnect the connector from ECM.
3)Measure the resistance of harness between
ECM and pressure sensor connector.
Connector & terminal
(8135) NO. 8 - (E21) NO. 1:
3epair poor conact in ECM conlector.
30 to step 5.
30 to step 6.
Check
s the value more than 282 kPa
2121 mmHg, 83.50 inHg)?
Contact with SOA
(distributor) service.
NOTE:
Inspection by DTk
is required, be
cause probable
cause is deteriora
tion of multiple
parts.
Contact with SOA
(distributor) service.
NOTE:
Inspection by DTk
is required, be
cause probablt
cause is deteriora
tion of multiplt
parts.
Repair open circuil
in harness
between ECM and
pressure sensor
connector.
s the voltage more than 4.5 V?
30 to step 7.
Ioes the voltage change more
han 4.5 V by shaking harness
n d connector of ECM while
nonitoring the value with volttge meter?
Repair open circuil
in harness
between ECM and
pressure sensor
connector.
s the voltage less than 0.7 V?
s the voltage more than 4.5 VS
s the resistance less than 1
2?
EN(D0HC TURBO)-1 15
DIAGNOSTIC PROCEDURE WITH DIAGNOSTIC TROUBLE CODE (DTC)
ENGINE (DIAGNOSTICS)
Step
r CHECK HARNESS BETWEEN ECM AND
PRESSURE SENSOR CONNECTOR.
Measure the resistance of harness between
ECM and pressure sensor connector.
Connector & terminal
(8135) NO. 19 - (E21) NO. 2:
I CHECK POOR CONTACT.
Check poor contact in pressure sensor connector.
CHECK HARNESS BETWEEN ECM AND
PRESSURE SENSOR CONNECTOR.
Check Yes
Is the resistance less than 1
a? Go to step 8.
Is there poor contact in pressure sensor connector?
Repair poor contact in pressure
sensor connector.
Is the value more than 282 kPa Repair battery
(2121 mmHg, 83.50 inHg)? short circuit in har1)Turn the ignition switch to OFF and Subaru
Select Monitor or the OBD-II general scan tool
switch to OFF.
2)Disconnect the connector from pressure
sensor.
3)Turn the ignition switch to ON and Subaru
Select Monitor or the OBD-II general scan tool
switch to ON.
4)Read the data of intake manifold absolute
iressure signal using Subaru Select Monitor or
OBD-II general scan tool.
NOTE:
*Subaru Select Monitor
For detailed operation procedure, refer to the
“READ CURRENT DATA FOR ENGINE.
to EN(D0HC TURBO)-38, Subaru Select Monitor.>
*OBD-II general scan tool
For detailed operation procedures, refer to the
OBD-ll General Scan Tool Instruction Manual.
ness between
ECM and pressure
sensor connector.
No 3epair open circuit
n harness
letween ECM and
lressure sensor
:onnector.
3eplace the presiure sensor. o FU(D0HC
rURBO)-35, Presiure Sensor.>
3eplace the presure sensor. o FU(D0HC
rURBO)-35, Pres;ure Sensor.>
EN(D0HC TURBO)-I 16
DIAGNOSTIC PROCEDURE WITH DIAGNOSTIC TROUBLE CODE (DTC)
ENGINE (D I AG N OSTl CS)
EN(D0HC TURBO)-I 17
DIAGNOSTIC PROCEDURE WITH DIAGNOSTIC TROUBLE CODE (DTC)
ENGINE [DIAGNOSTICS)
K: DTC PO1 11 - INTAKE AIR TEMPERATURE SENSOR CIRCUIT RANGE/PER-
FORMANCE PROBLEM -
DTC DETECTING CONDITION:
Two consecutive driving cycles with fault
TROUBLE SYMPTOM:
Erroneous idling
Poor driving performance
CAUTION:
After repair or replacement of faulty parts, conduct Clear Memory Mode and Inspection Mode .
WIRING DIAGRAM:
IAIN RELAY
BATTERY
SBF-5
MASS AIR FLOW AND
INTAKE AIR TEMPERATURE
ECM
@
EN1 145
EN(D0HC TURBO)-I 18
DIAGNOSTIC PROCEDURE WITH DIAGNOSTIC TROUBLE CODE (DTC)
ENGINE (DIAGNOSTICS)
Yes
Inspect DTC
POI 12, PO1 13,
PO1 17, PO1 18 or
PO1 25 using “List
of Diagnostic Trouble Code (DTC)”.
TURBO)-80, List
of Diagnostic Trouble Code (DTC).>
NOTE:
In this case, it is
not necessary to
inspect DTC
P0111.
Replace the mass
air flow and intake
air temperature
sensor. FU(D0HC
TURBO)-34, Mass
Air Flow and
Intake Air Temperature Sensor.>
Step
CHECK ANY OTHER DTC ON DISPLAY.
No Go to step 2.
Inspect DTC
PO125 using “List
of Diagnostic Trow
ble Code (DTC)”.
TURBO)-80, List
of Diagnostic Trow
ble Code (DTC).>
CHECK ENGINE COOLANT TEMPERA-
TURE.
1)Start the engine and warm it up completely.
2)Measure the engine coolant temperature
using Subaru Select Monitor or OBD-11 general
scan tool.
NOTE:
*Subaru Select Monitor
For detailed operation procedure, refer to the
“READ CURRENT DATA FOR ENGINE.
to EN(D0HC TURBO)-38, Subaru Select Monitor.>
*OBD-II general scan tool
For detailed operation procedures, refer to the
OBD-ll General Scan Tool Instruction Manual.
Check
loes the Subaru Select Monior or OBD-ll general scan tool
ndicate DTC PO1 12, PO1 13,
’0117, PO118 or P0125?
s the engine coolant temperaure between 75°C (1 67°F) and
)5”C (203”F)?
I
EN(D0HC TURBO)-I 19
DIAGNOSTIC PROCEDURE WITH DIAGNOSTIC TROUBLE CODE (DTC)
ENGINE (DIAGNOSTICS)
L: DTC PO1 12 - INTAKE AIR TEMPERATURE SENSOR CIRCUIT LOW INPUT
7
DTC DETECTING CONDITION:
Immediately at fault recognition
TROUBLE SYMPTOM:
Erroneous idling
Poor driving performance
CAUTION:
After repair or replacement of faulty parts, conduct Clear Memory Mode and Inspection Mode .
WIRING DIAGRAM:
R A T T F R Y
MASS AIR FLOW AND
INTAKE AIR TEMPERATURE
ECM
E :
EN1 145
EN(D0HC TURBO)-1 20
DIAGNOSTIC PROCEDURE WITH DIAGNOSTIC TROUBLE CODE (DTC)
ENG I NE (DIAGNOSTICS)
Step
CHECK CURRENT DATA.
1)Start the engine.
2)Read the data of intake air temperature sensor signal using Subaru Select Monitor or the
OBD-ll general scan tool.
NOTE:
Gubaru Select Monitor
For detailed operation procedure, refer to the
“READ CURRENT DATA FOR ENGINE”.
to EN(D0HC TURBO)-38, Subaru Select Monitor.>
*OBD-II general scan tool
For detailed operation procedure, refer to the
OBD-II General Scan Tool Instruction Manual.
CHECK HARNESS BETWEEN MASS AIR
FLOW AND INTAKE AIR TEMPERATURE
SENSOR AND ECM CONNECTOR.
1)Turn the ignition switch to OFF.
2)Disconnect the connector from mass air flow
and intake air temperature sensor.
3)Turn the ignition switch to ON.
4)Read the data of intake air temperature sensor signal using Subaru Select Monitor or the
OBD-ll general scan tool.
NOTE:
*Subaru Select Monitor
For detailed operation procedure, refer to the
“READ CURRENT DATA FOR ENGINE”.
to EN(D0HC TURBO)-38, Subaru Select Monitor.>
*OBD-ll general scan tool
For detailed operation procedure, refer to the
OBD-II General Scan Tool Instruction Manual.
Check
s the value greater than 55°C
131 OF)?
s the value less than -36°C ()7”F)?
Yes
30 to step 2.
3eplace the mass
air flow and intake
air temperature
sensor. ‘U( DOHC
TURBO)-34, Mass
4ir Flow and
ntake Air Temperature Sensor.>
No 3epair poor con3Ct.
JOTE:
n this case, repai
he following:
Poor contact
nass air flow and
itake air tempera.
ure sensor
Poor contact in
iCM
Poor contact in
Ynt connector
3epair ground
ihort circuit in har.
less between
nass air flow and
itake air tempera.
ure sensor and
iCM connector.
EN(D0HC TURBO)-121
DIAGNOSTIC PROCEDURE WITH DIAGNOSTIC TROUBLE CODE (DTC)
ENGINE (DIAGNOSTICS)
M: DTC PO1 13 - INTAKE AIR TEMPERATURE SENSOR CIRCUIT HIGH INPUT -
DTC DETECTING CONDITION:
Immediately at fault recognition
TROUBLE SYMPTOM:
Erroneous idling
Poor driving performance
CAUTION:
After repair or replacement of faulty parts, conduct Clear Memory Mode and Inspection Mode .
WIRING DIAGRAM:
MAIN RELAY
I MASS AIR FLOW AND
INTAKE AIR TEMPERATURE
ECM
@
EN1 145
EN(D0HC TURBO)-122
DIAGNOSTIC PROCEDURE WITH DIAGNOSTIC TROUBLE CODE (DTC)
ENGINE (DIAGNOSTICS)
Check Step
I CHECK CURRENT DATA.
1)Start the engine.
2)Read the data of intake air temperature sensor signal using Subaru Select Monitor or the
OBD-I1 general scan tool.
NOTE:
*Subaru Select Monitor
For detailed operation procedure, refer to the
“READ CURRENT DATA FOR ENGINE”.
to EN(D0HC TURBO)-38, Subaru Select Mom
itor.>
*OBD-ll general scan tool
For detailed operation procedure, refer to the
OBD-ll General Scan Tool Instruction Manual.
CHECK HARNESS BETWEEN MASS AIR
FLOW AND INTAKE AIR TEMPERATURE
SENSOR AND ECM CONNECTOR.
1)Turn the ignition switch to OFF.
2)Disconnect the connector from mass air flow
and intake air temperature sensor.
3)Measure the voltage between mass air flow
?nd intake air temperature sensor connector
and engine ground.
!
Connector & terminal
(63) No. 2 (+) - Engine ground (-):
CHECK HARNESS BETWEEN INTAKE AIR
TEMPERATURE AND PRESSURE SENSOR
AND ECM CONNECTOR.
1)Turn the ignition switch to ON.
2)Measure the voltage between mass air flow
and intake air temperature sensor connector
and engine ground.
I
Connector & terminal
(63) No. 2 (+) - Engine ground (-):
CHECK HARNESS BETWEEN MASS AIR
FLOW AND INTAKE AIR TEMPERATURE
SENSOR AND ECM CONNECTOR.
Measure the voltage between mass air flow
and intake air temperature sensor and pressure sensor connector and engine ground.
(63) No. 2 (+) - Engine ground (-)I
I
Connector & terminal
Yes
17”F)?
; the voltage more than 10 V?
s the voltage more than 10 V?
s the voltage more than 3 V?
No Repair battery
short circuit in harness between
mass air flow and
intake air temperature sensor and
ECM connector.
Repair battery
short circuit in harness between
mass air flow and
intake air temperature sensor and
ECM connector.
Go to step 5.
Repair poor contact.
NOTE:
In this case, repaii
the following:
Poor contact in
mass air flow and
intake air temperature sensor
* Poor contact in
ECM
Poor contact in
ioint connector
Go to step 3.
Go to step 4.
Repair harness
and connector.
NOTE:
In this case, repaii
the following:
Open circuit in
harness between
mass air flow and
intake air tempera
ture sensor and
ECM connector
* Poor contact in
mass air flow and
intake air temperature sensor
Poor contact in
ECM
Poor contact in
joint connector
EN(D0HC TURBO)-123
-
Step Check
# CHECK HARNESS BETWEEN MASS AIR
FLOW AND INTAKE AIR TEMPERATURE
Is the resistance less than 5
R?
DIAGNOSTIC PROCEDURE WITH DIAGNOSTIC TROUBLE CODE (DTC)
ENGINE (DIAGNOSTICS)
Yes
Replace the mass
air flow and intake
SENSOR AND ECM CONNECTOR.
1)Turn the ignition switch to OFF.
2)Measure the resistance of harness between
mass air flow and intake air temperature sensor and engine ground.
Connector & terminal
(83) No. 5 - Engine ground:
air temperature
sensor. FU(D0HC
TURBO)-34, Mass
Air Flow and
Intake Air Temperature Sensor.>
No Repair harness
and connector.
NOTE:
In this case, repaii
the following:
Open circuit in
nessbetween
mass air flow and
intake air temperature sensor and
ECM connector
Poor contact in
mass air flow and
intake air tempera.
ture sensor
Poor contact in
ECM
Poor contact in
ioint connector
EN(D0HC TURBO)-124
DIAGNOSTIC PROCEDURE WITH DIAGNOSTIC TROUBLE CODE (DTC)
ENGINE (DIAGNOSTICS)
EN(D0HC TURBO)-I25
DIAGNOSTIC PROCEDURE WITH DIAGNOSTIC TROUBLE CODE (DTC)
ENGINE (DIAGNOSTICS)
N: DTC PO1 17 - ENGINE COOLANT TEMPERATURE SENSOR CIRCUIT LOW
INPUT -
DTC DETECTING CONDITION:
Immediately at fault recognition
TROUBLE SYMPTOM:
Hard to start
Erroneous idling
Poor driving performance
CAUTION:
After repair or replacement of faulty parts, conduct Clear Memory Mode and Inspection Mode .
WIRING DIAGRAM:
I ENGINE
COOLANT
TEMPERATURE
SENSOR
7
EN114;
EN(D0HC TURBO)-I26
DIAGNOSTIC PROCEDURE WITH DIAGNOSTIC TROUBLE CODE (DTC)
ENGINE (DIAGNOSTICS)
Check
s the value greater than i 50°C
302”F)?
s the value less than -40°C (IO’F)?
Step
CHECK CURRENT DATA.
1 )Start the engine.
2)Read the data of engine coolant temperature
sensor signal using Subaru Select Monitor or
OBD-II general scan tool.
NOTE:
*Subaru Select Monitor
For detailed operation procedure, refer to the
“READ CURRENT DATA FOR ENGINE”.
to EN(D0HC TURBO)-38, Subaru Select Monitor.>
*OBD-ll general scan tool
For detailed operation procedures, refer to the
OBD-ll General Scan Tool Instruction Manual.
Yes No
Go to step 2. Repair poor contact.
NOTE:
In this case, repai
the following:
Poor contact in
engine coolant
temperature sensor
Poor contact in
ECM
Poor contact in
coupling connect0
Poor contact in
joint connector
Replace the Repair ground
engine coolant short circuit in har.
temperature sen- ness between
sor. FU(D0HC temperature senTURBO)-29, sor and ECM conEngine Coolant nector.
Temperature SenCHECK HARNESS BETWEEN ENGINE
COOLANT TEMPERATURE SENSOR AND
ECM CONNECTOR.
1)Turn the ignition switch to OFF.
2)Disconnect the connector from engine coclant temperature sensor.
3)Turn the ignition switch to ON.
4)Read the data of engine coolant temperature
sensor signal using Subaru Select Monitor or
OBD-ll general scan tool.
NOTE:
*Subaru Select Monitor
For detailed operation procedure, refer to the
“READ CURRENT DATA FOR ENGINE.
to EN(D0HC TURBO)-38, Subaru Select Monitor.>
*OBD-ll general scan tool
For detailed operation procedures, refer to the
OBD-ll General Scan Tool Instruction Manual.
sor.>
EN(D0HC TURBO)-127
DIAGNOSTIC PROCEDURE WITH DIAGNOSTIC TROUBLE CODE (DTC)
EN G IN E (DIAGNOSTICS)
0: DTC PO1 18 - ENGINE COOLANT TEMPERATURE SENSOR CIRCUIT HIGH
INPUT -
DTC DETECTING CONDITION:
Immediately at fault recognition
TROUBLE SYMPTOM:
Hard to start
Erroneous idling
Poor driving performance
CAUTION:
After repair or replacement of faulty parts, conduct Clear Memory Mode and Inspection Mode .
WIRING DIAGRAM:
ENGINE
COOLANT
TEMPERATURE 1 SENSOR
@ ECM U
EN1147
EN(D0HC TURBO)-128
DIAGNOSTIC PROCEDURE WITH DIAGNOSTIC TROUBLE CODE (DTC)
ENGINE (DIAGNOSTICS)
Step Check Yes
1)Start the engine.
2)Read the data of engine coolant temperature
sensor signal using Subaru Select Monitor or
OBD-II general scan tool.
NOTE:
OSubaru Select Monitor
For detailed operation procedure, refer to the
“READ CURRENT DATA FOR ENGINE”.
to EN(D0HC TURBO)-38, Subaru Select Mom
itor.>
*OBD-II general scan tool
For detailed operation procedures, refer to the
OBD-ll General Scan Tool Instruction Manual.
CHECK CURRENT DATA. I Is the value less than -40°C (40°F)?
I Go to step 2.
! CHECK HARNESS BETWEEN ENGINE Is the voltage more than 10 V?
No Repair battery
Repair poor contact.
NOTE:
In this case, repai
the following:
m Poor contact in
engine coolant
temperature sensor
* Poor contact in
ECM
Poor contact in
coupling connect0
m Poor contact in
joint connector
Go to step 3.
COOLANT TEMPERATURE SENSOR AND
ECM CONNECTOR.
1)Turn the ignition switch to OFF.
2)Disconnect the connector from engine coolant temperature sensor.
3)Measure the voltage between engine coolant
temperature sensor connector and engine
ground.
Connector & terminal
(E8) No. 2 (+) - Engine ground (-):
1 CHECK HARNESS BETWEEN ENGINE
COOLANT TEMPERATURE SENSOR AND
ECM CONNECTOR.
1)Turn the ignition switch to ON.
2)Measure the voltage between engine coolant
temperature sensor connector and engine
ground.
Connector & terminal
(E8) No. 2 (+) - Engine ground (-):
I CHECK HARNESS BETWEEN ENGINE
COOLANT TEMPERATURE SENSOR AND
Go to step 4.
short circuit in harness between
ECM and engine
coolant temperature sensor connector.
Is the voltage more than 10 V? Repair battery
short circuit in harness between
ECM and engine
coolant temperature sensor connector.
Is the voltage more than 4 V? Go to step 5. Repair harness
and connector.
NOTE:
In this case, repai
the following:
Open circuit in
harness between
ECM and engine
coolant temperature sensor connector
Poor contact in
engine coolant
temperature sensor connector
9 Poor contact in
ECM connector
Poor contact in
coupling connecta
Poor contact in
joint connector
EN(D0HC TURBO)-129
DIAGNOSTIC PROCEDURE WITH DIAGNOSTIC TROUBLE CODE (DTC)
ENGINE [DIAGNOSTICS)
Check
Is the resistance less than 5
n? Step
I CHECK HARNESS BETWEEN ENGINE
COOLANT TEMPERATURE SENSOR AND
ECM CONNECTOR.
1)Turn the ignition switch to OFF.
2)Measure the resistance of harness between
engine coolant temperature sensor connector
and engine ground.
Connector & terminal
(E8) No. 7 - Engine ground:
Yes No
Replace the Repair harness
engine coolant and connector.
temperature sen- NOTE:
sor. FU(D0HC the following:
TURBO)-29, Open circuit in
Engine Coolant harness between
Temperature Sen- ECM and engine
sor.> coolant temperature sensor connector
Poor contact in
engine coolant
temperature sensor connector
Poor contact in
ECM connector
Poor contact in
coupling connector
Poor contact in
joint connector
In this case, repair
EN(D0HC TURBO)-130
DIAGNOSTIC PROCEDURE WITH DIAGNOSTIC TROUBLE CODE (DTC)
I
t ENGINE (DIAGNOSTICS)
EN(D0HC TURBO)-I31
DIAGNOSTIC PROCEDURE WITH DIAGNOSTIC TROUBLE CODE (DTC)
ENGINE (DIAGNOSTICS)
P: DTC PO121 - THROTTLE POSITION SENSOR CIRCUIT RANGE/PERFOR-
MANCE PROBLEM (HIGH INPUT) -
DTC DETECTING CONDITION:
Two consecutive driving cycles with fault
TROUBLE SYMPTOM:
Erroneous idling
Engine stalls.
Poor driving performance
Fuel is cut.
CAUTION:
After repair or replacement of faulty parts, conduct Clear Memory Mode and Inspection Mode .
WIRING DIAGRAM:
THROTTLE
POSITION
SENSOR
c li a EN1 148
EN(D0HC TURBO)-I 32
I
DIAGNOSTIC PROCEDURE WITH DIAGNOSTIC TROUBLE CODE (DTC)
ENGINE (DIAGNOSTICS)
~
Check
Ioes the Subaru Select Monior or OBD-I1 general scan tool
ndicate DTC PO1 22, PO1 23 or
'1 507?
Step
CHECK ANY OTHER DTC ON DISPLAY.
Yes
Inspect DTC
P0122, PO123 or
P I 507 using " List
of Diagnostic Trouble Code (DTC)".
TURBO)-80, List
of Diagnostic Trouble Code (DTC).>
NOTE:
In this case, it is
not necessary to
inspect DTC
P0121.
No Replace the throt!le position sen;or. FU(D0HC
Throttle Position
Sensor.>
TURBO)-33,
EN(D0HC TURBO)-133
DIAGNOSTIC PROCEDURE WITH DIAGNOSTIC TROUBLE CODE (DTC)
ENGINE (DIAGNOSTICS)
Q:
DTC DETECTING CONDITION:
Immediately at fault recognition
TROUBLE SYMPTOM:
Erroneous idling
Engine stalls.
Poor driving performance
DTC PO122 -THROTTLE POSITION SENSOR CIRCUIT LOW INPUT -
CAUTION:
After repair or replacement of faulty parts, conduct Clear Memory Mode and Inspection Mode .
WIRING DIAGRAM:
THROTTLE
POSITION
SENSOR
e EN1148
EN(D0HC TURBO)-134
DIAGNOSTIC PROCEDURE WITH DIAGNOSTIC TROUBLE CODE (DTC)
ENGINE IDIAGNOSTICS)
Yes
30 to step 2.
30 to step 4.
3epair poor conact in ECM conlector.
Step
CHECK CURRENT DATA.
1)Start the engine.
2)Read the data of throttle position sensor signal using Subaru Select Monitor or OBD-ll
general scan tool.
NOTE:
*Subaru Select Monitor
For detailed operation procedure, refer to the
“READ CURRENT DATA FOR ENGINE.
to EN(D0HC TURBO)-38, Subaru Select Monitor.>
*OBD-ll general scan tool
For detailed operation procedures, refer to the
OBD-II General Scan Tool Instruction Manual.
No Even if MIL lights
up, the circuit has
returned to a normal condition at
this time. A tempo
rary poor contact
of the connector
may be the cause
NOTE:
In this case, repar
the following:
Poor contact in
throttle position
sensor connector
Poor contact in
ECM connector
Poor contact in
coupling connectc
Go to step 3.
Contact with SOA
(distributor) service.
NOTE:
Inspection by DTL
is required, be
cause probabll
cause is deteriora
tion of multipll
parts.
! CHECK INPUT SIGNAL FOR ECM.
Measure the voltage between ECM connector
and chassis ground while throttle valve is fully
closed.
Connector & terminal
(6135) No. 9 (+) - Chassis ground (-):
CHECK JNPUT SIGNAL FOR ECM.
Measure the voltage between ECM connector
and chassis ground.
I
Connector & terminal
(6135) No. 9 (+) - Chassis ground (-):
I CHECK INPUT SIGNAL FOR ECM.
Measure the voltage between ECM connector
and chassis ground.
Connector & terminal
(8135) No. 7 (+) - Chassis ground (-):
1 CHECK INPUT SIGNAL FOR ECM. (USING
SUBARU SELECT MONITOR.)
Measure the voltage between ECM connector
and chassis ground.
Check
s the value less than 0.1 V?
s the voltage more than 4.5 V‘
Ioes the voltage change more
han 4.5 V by shaking harness
ind connector of ECM while
nonitoring the value with voltige meter?
s the voltage less than 0.1 V?
joes the voltage change more
han 0.1 V by shaking harness
md connector of ECM while
nonitoring the value with Subkru Select Monitor?
act in ECM conlector.
EN(D0HC TURB0)-135
DIAGNOSTIC PROCEDURE WITH DIAGNOSTIC TROUBLE CODE (DTC)
ENGINE IDIAGNOSTICS)
Step
CHECK HARNESS BETWEEN ECM AND
TOR.
1)Turn the ignition switch to OFF.
2)Disconnect the connectors from throttle position sensor.
3)Turn the ignition switch to ON.
4)Measure the voltage between throttle position sensor connector and engine ground.
(€13) No. 1 (+) - Engine ground (-):
THROTTLE POSITION SENSOR CONNEC-
Connector & terminal
CHECK HARNESS BETWEEN ECM AND
THROTTLE POSITION SENSOR CONNEC-
TOR.
'1)Turn the ignition switch to OFF.
2)Measure the resistance of harness between
ECM connector and throttle position sensor
connector.
Connector & terminal
(8135) NO. 7 - (E13) NO. 3:
I CHECK HARNESS BETWEEN ECM AND
THROlTLE POSITION SENSOR CONNEC-
TOR.
Measure the resistance of harness between
throttle position sensor connector and engine
ground.
Connector & terminal
(E13) No. 3 - Engine ground:
1 CHECK POOR CONTACT.
Check poor contact in throttle position sensor
connector.
Check
s the voltage more than 4.5 V'
s the resistance less than 1
2?
s the resistance less than 10
3?
s there poor contact in throttle
iosition sensor connector?
Yes
30 to step 7.
30 to step 8.
3epair ground
short circuit in harless between
hrottle position
sensor and ECM
:onnector.
3epair poor conact in throttle posi,
ion sensor
:onnector.
No Repair harness
and connector.
NOTE:
In this case, repaii
the following:
Open circuit in
harness between
throttle position
sensor and ECM
connector
Poor contact in
throttle position
sensor connector
Poor contact in
ECM connector
Poor contact in
coupling connectoi
Poor contact in
joint connector
Repair harness
and connector.
NOTE:
In this case, repaii
the following:
Open circuit in
harness between
throttle position
sensor and ECM
connector
Poor contact in
ECM connector
Poor contact in
throttle position
sensor connector
Poor contact in
coupling connectoi
Go to step 9.
Replace the throttle position sensor. FU(D0HC
Throttle Position
Sensor.>
TURBO)-33,
EN(D0HC TURBO)-136
DIAGNOSTIC PROCEDURE WITH DIAGNOSTIC TROUBLE CODE (DTC)
ENGINE (DIAGNOSTICS)
-
EN(D0HC TURBO)-I37
DIAGNOSTIC PROCEDURE WITH DIAGNOSTIC TROUBLE CODE (DTC)
ENGINE (DIAGNOSTICS)
R: DTC PO123 - THROTTLE POSITION SENSOR CIRCUIT HIGH INPUT -
DTC DETECTING CONDITION:
Immediately at fault recognition
TROUBLE SYMPTOM:
Erroneous idling
Engine stalls.
Poor driving performance CAUTION:
After repair or replacement of faulty parts, conduct Clear Memory Mode and Inspection Mode .
WIRING DIAGRAM:
THROTTLE
POSITION
SENSOR
I -
@
EN(D0HC TURBO)-138
EN1148
DIAGNOSTIC PROCEDURE WITH DIAGNOSTIC TROUBLE CODE (DTC)
ENGINE (DIAGNOSTICS)
Yes
i o to step 2.
Go to step 3.
~~
Step
CHECK CURRENT DATA.
1)Start the engine.
2)Read the data of throttle position sensor sig.
nal using Subaru Select Monitor or OBD-ll
general scan tool.
NOTE:
*Subaru Select Monitor
For detailed operation procedure, refer to the
“READ CURRENT DATA FOR ENGINE.
to EN(D0HC TURBO)-38, Subaru Select Mon
itor.>
*OBD-ll general scan tool
For detailed operation procedures, refer to the
OBD-ll General Scan Tool Instruction Manual.
No Even if MIL lights
up, the circuit has
returned to a normal condition at
this time. A temporary poor contact
of the connector
may be the cause.
NOTE:
In this case, repair
the following:
Poor contact in
throttle position
sensor connector
Poor contact in
ECM connector
Poor contact in
coupling connector
Repair harness
and connector.
NOTE:
In this case, repaii
the following:
Open circuit in
harness between
throttle position
sensor and ECM
connector
Poor contact in
coupling connectot
Poor contact in
joint connector
CHECK HARNESS BETWEEN THROlTLE
POSITION SENSOR AND ECM CONNEC-
TOR.
1)Turn the ignition switch to OFF.
2)Disconnect the connector from throttle position sensor.
3)Measure the resistance of harness between
throttle position sensor connector and engine
ground.
Connector & terminal
(E 13) No. 2 - Engine ground:
CHECK HARNESS BETWEEN THROTTLE
POSITION SENSOR AND ECM CONNEC-
TOR.
1)Turn the ignition switch to ON.
2)Measure the voltage between throttle position sensor connector and engine ground.
(E13) No. 3 (+) -Engine ground (-):
Connector & terminal
Check
; the value more than 4.9 V?
5 the resistance less than 5
l? s h e voltage more than 4.9 b Aepair battery
short circuit in harness between
throttle position
sensor and ECM
connector. After
repair, replace the
ECM. FU(D0HC
Engine Control
Module.>
TURBO)-47,
Replace the throttle position sensor. FU(D0HC
Throttle Position
Sensor.>
TURBO)-33,
EN(D0HC TURBO)-139
DIAGNOSTIC PROCEDURE WITH DIAGNOSTIC TROUBLE CODE (DTC)
ENGINE (DIAGNOSTICS)
S: DTC PO125 - INSUFFICIENT COOLANT TEMPERATURE FOR CLOSED
LOOP FUEL CONTROL -
DTC DETECTING CONDITION:
TROUBLE SYMPTOM:
CAUTION:
After repair or replacement of faulty parts, conduct Clear Memory Mode and Inspection Mode .
WIRING DIAGRAM:
Two consecutive driving cycles with fault
Engine would not return to idling.
ENGINE
COOLANT
TEMPERATURE
SENSOR
IC
I
I
c EN(D0HC TURBO)-140
DIAGNOSTIC PROCEDURE WITH DIAGNOSTIC TROUBLE CODE (DTC)
ENGINE [DI AGNOSTICSI
Check Step
CHECK ANY OTHER DTC ON DISPLAY.
Yes No
! CHECK ENGINE COOLING SYSTEM.
NOTE:
Check the following items.
*Thermostat open stuck
*Coolant level
Coolant freeze
*Tire diameter
Does the Subaru Select Moni- I Inspect DTC I Go to step 2.
tor or OBD-ll general scan tool
indicate DTC PO1 17 or PO1 18?
Is there a fault in engine cooling system?
EN(D0HC TURBO)-141
PO1 17 or PO1 18
using “List of Diag.
nostic Trouble
Code (DTC)”.
TURBO)-80, List
of Diagnostic Trow
ble Code (DTC).>
NOTE:
In this case, it i s
not necessary tc
inspect DTC
PO1 25.
Replace the ther- rleplace the
mostat. CO-35, Thermo- temperature senstat.> sor. FU(D0HC
Engine Coolant
Temperature Sensor.>
TURBO)-29,
DIAGNOSTIC PROCEDURE WITH DIAGNOSTIC TROUBLE CODE (DTC)
ENGINE (DIAGNOSTICS)
Step
CHECK VEHICLE CONDITION.
CHECK ANY OTHER DTC ON DISPLAY.
T: DTC PO128 - THERMOSTAT MALFUNCTION -
DTC DETECTING CONDITION:
TROUBLE SYMPTOM:
CAUTION:
After repair or replacement of faulty parts, conduct Clear Memory Mode and Inspection Mode .
Two consecutive driving cycles with fault
Thermostat remains open.
Check
Has engine operated at idle or
has vehicle been driven with
part of engine submerged
under water?
Does the Subaru Select Monitor or OBD-II general scan tool
indicate DTC PO125, P0301,
P0302, P0303, P0304, PO305
and PO306 at same time?
CHECK ENGINE COOLANT.
CHECK RADIATOR FAN.
1)Start the engine.
2)Check radiator fan operation.
Are coolant level and mixture
ratio of cooling water to antifreeze solution correct?
Does the radiator fan continuously rotate for more than 3
minutes during idling?
Yes
In this case, it is
not necessary to
inspect DTC
P0128.
Go to step 3.
Go to step 4.
Repair radiator fan
Zircuit. EO-46, Radiator
Main Fan and Fan
Motor.> and to CO-48, Radiator
Sub Fan and Fan
Motor.>
No Go to step 2.
Inspect DTC
PO1 25, P0301,
P0302, P0303,
P0304, PO305 and
PO306 using “List
of Diagnostic Trouble Code (DTC)”.
TURBO)SO, List
of Diagnostic Trouble Code (DTC).>
Replace the
engine coolant.
REPLACEMENT,
Engine Coolant.>
Replace the thermostat. GO-35, Thermostat.>
EN(D0HC TURBO)-142
1 -
DIAGNOSTIC PROCEDURE WITH DIAGNOSTIC TROUBLE CODE (DTC)
ENGINE (DIAGNOSTICS)
U: DTC PO131 - FRONT OXYGEN (NF) SENSOR CIRCUIT RANGUPERFOR-
MANCE PROBLEM (LOW INPUT) -
NOTE:
OXYGEN (NF) SENSOR CIRCUIT RANGE/PERFORMANCE PROBLEM (HIGH INPUT) -, Diagnostic
Procedure with Diagnostic Trouble Code (DTC).>
I For the diagnostic procedure, refer to DTC P0132. EN(D0HC TURBO)-143
-
DIAGNOSTIC PROCEDURE WITH DIAGNOSTIC TROUBLE CODE (DTC)
ENGINE (DIAGNOSTICS)
V: DTC PO132 - FRONT OXYGEN (NF) SENSOR CIRCUIT RANGWPERFOR-
MANCE PROBLEM (HIGH INPUT) -
DTC DETECTING CONDITION:
CAUTION:
After repair or replacement of faulty parts, conduct Clear Memory Mode and Inspection Mode .
WIRING DIAGRAM:
Two consecutive driving cycles with fault
EN1143
EN(D0HC TURBO)-I44
DIAGNOSTIC PROCEDURE WITH DIAGNOSTIC TROUBLE CODE (DTC)
ENGl N E (DIAGNOSTICS)
3epair poor conact in front oxygen
NF) sensor and
‘ear oxygen sen;or connector.
~
Step
CHECK ANY OTHER DTC ON DISPLAY.
Check rear oxyger
sensor circuit.
TURBO)-44, Rear
Oxygen Sensor.>
CHECK FRONT (NF) OXYGEN SENSOR DA-
TA.
1)Start the engine.
2)While observing the Subaru Select Monitor
or OBD-ll general scan tool screen, warm-up
the engine until coolant temperature is above
70°C (1 58°F).
If the engine is already warmed-up, operate at
idle speed for at least 1 minute.
3)Read the data of front oxygen (NF) sensor
signal using Subaru Select Monitor or OBD-ll
general scan tool.
NOTE:
*Subam Select Monitor
For detailed operation procedure, refer to the
“READ CURRENT DATA FOR ENGINE”.
to EN(D0HC TURBO)-38, Subaru Select Monitor.>
*OBD-ll general scan tool
For detailed operation procedures, refer to the
OBD-ll General Scan Tool Instruction Manual.
CHECK REAR OXYGEN SENSOR SIGNAL.
1)Race the engine at speeds from idling to
5,000 rpm for a total of 5 cycles.
NOTE:
To increase engine speed to 5,000 rpm, slowly
depress accelerator pedal, taking approximately 5 seconds, and quickly release accelerator
pedal to decrease engine speed.
2)Operate the LED operation mode for engine.
NOTE:
*Subaru Select Monitor
For detailed operation procedure, refer to the
“LED OPERATION MODE FOR ENGINE.
Select Monitor.>
CHECK EXHAUST SYSTEM.
Check exhaust system parts.
NOTE:
Check the following items.
*Loose installation of portions
*Damage (crack, hole etc.) of parts
*Looseness of front oxygen (NF) sensor
*Looseness and ill fitting of parts between front
oxygen (NF) sensor and rear oxygen sensor
.
3epair or replace
aulty parts.
Check
loes the Subaru Select Monior or OBD-ll general scan tool
ndicate DTC P0031, P0032,
J1131. Pi134or P1139?
Replace the front
oxygen (NF) sensor. FU(D0HC
TURBO)-42, Fron
Oxygen (NF) Sen
sor.>
s the value equal to or more
han 0.85 and equal to less
han 1.1 5 in idling?
loes the LED of {Rear 0 2
3ich Signal} blink?
s there a fault in exhaust sysem?
Yes
nspect DTC
J0031, P0032,
J1131, P1134or
J1 139 using “List
if Diagnostic Trou)le Code
DTC)”. !N(DOHC
rURBO)-80, List
i f Diagnostic Trouile Code (DTC).>
20 to step 3.
No Go to step 2.
Go to step 4.
1
EN(D0HC TURBO)-145
DIAGNOSTIC PROCEDURE WITH DIAGNOSTIC TROUBLE CODE (DTC)
ENGINE (DIAGNOSTICS)
W: DTC PO133 - FRONT OXYGEN (NF) SENSOR CIRCUIT SLOW RESPONSE
DTC DETECTING CONDITION:
CAUTION:
After repair or replacement of faulty parts, conduct Clear Memory Mode and Inspection Mode .
WIRING DIAGRAM:
-
Two consecutive driving cycles with fault
AIN RELAY BATTERY
I
R FRONTOXYGEN
EN1 143
EN(D0HC TURBO)-146
DIAGNOSTIC PROCEDURE WITH DIAGNOSTIC TROUBLE CODE (DTC)
ENGINE (DIAGNOSTICSI
Y e s Step
CHECK ANY OTHER DTC ON DISPLAY.
No ! CHECK EXHAUST SYSTEM.
NOTE:
Check the following items.
*Loose installation of front portion of exhaust
pipe onto cylinder heads
*Loose connection between front exhaust pipe
and front catalytic converter
*Damage of exhaust pipe resulting in a hole
Inspect DTC I
Check
Ioes the Subaru Select Monior or OBD-ll general scan tool
idicate DTC P0031, P0032,
)0131, PO1 32, P1130, P1131,
V134 or P1139?
Go to step 2.
s there a fault in exhaust sysem?
P0031, P0032,
PO1 31, PO1 32,
P1130, P1131,
P1134or P1139
using “List of Diagnostic Trouble
Code (DTC)”.
TURBO)-80, List
of Diagnostic Trow
ble Code (DTC).>
NOTE:
In this case, it i$
not necessary tc
inspect DTC
PO1 33.
Repair exhaust Replace the front
system.
EN(D0HC TURBO)-147
oxygen (NF) sensor. FU(D0HC
TURBO)-42, Front
Oxygen (NF) Sensor.>
DIAGNOSTIC PROCEDURE WITH DIAGNOSTIC TROUBLE CODE (DTC)
ENG IN E r Dl AG NOSTICS)
Step
1 . CHECK ANY OTHER DTC ON DISPLAY.
X: DTC PO136 - REAR OXYGEN SENSOR CIRCUIT MALFUNCTION -
DTC DETECTING CONDITION:
CAUTION:
After repair or replacement of faulty parts, conduct Clear Memory Mode and Inspection Mode .
WIRING DIAGRAM:
Two consecutive driving cycles with fault
Check
Does the Subaru Select Monitor or OBD-II general scan tool
indicate DTC PO1 31 or PO1 32?
AIN RELAY BATTERY
OXYGEN SENSOR
3 : @
EN1 144
I I
EN(D0HC TURBO)-1 48
DIAGNOSTIC PROCEDURE WITH DIAGNOSTIC TROUBLE CODE (DTC)
ENGINE (DIAGNOSTICS)
Step
CHECK FAILURE CAUSE OF PO131 or
PO1 32.
Inspect DTC PO1 31 or PO1 32 using “List of
Diagnostic Trouble Code (DTC)”. EN(D0HC TURBO)-80, List of Diagnostic
Trouble Code (DTC).>
CHECK REAR OXYGEN SENSOR DATA.
1)Warm-up the engine until engine coolant
temperature is above 70°C (1 58”F), and keep
the engine speed at 2,000 rpm to 3,000 rpm for
two minutes.
2)Read the data of rear oxygen sensor signal
using Subaru Select Monitor or OBD-ll general
scan tool.
NOTE:
OSubaru Select Monitor
For detailed operation procedure, refer to the
PLAY FOR ENGINE”. TURBO)-38, Subaru Select Monitor.>
.OBD-ll general scan tool
For detailed operation procedures, refer to the
OBD-I1 General Scan Tool Instruction Manual.
CHECKREAROXYGENSENSORDATA.
Read the data of rear oxygen sensor signal
using Subaru Select Monitor or OBD-II General Scan Tool.
“READ CURRENT DATA SHOWN ON DIS-
CHECK HARNESS BETWEEN ECM AND
REAROXYGENSENSORCONNECTOR.
1)Turn the ignition switch to OFF.
2)Disconnect the connectors from ECM and
rear oxygen sensor.
3)Measure the resistance of harness between
ECM and rear oxygen sensor connector.
Connector & terminal
(6135) NO. 26 - (B19) NO. 4:
CHECKHARNESSBETWEENREAROXY-
GEN SENSOR AND ECM CONNECTOR.
1)Turn the ignition switch to OFF.
2)Disconnect the connector from rear oxygen
sensor.
3)Turn the ignition switch to ON.
4)Measure voltage between rear oxygen sensor harness connector and engine ground or
chassis ground.
Connector & terminal
(B19) No. 3 (+) - Engine ground (-):
- CHECK EXHAUST SYSTEM.
Check exhaust system parts.
NOTE:
Check the following items.
*Loose installation of portions
.Damage (crack, hole etc.) of parts
.Looseness and ill fitting of parts between front
oxygen (NF) sensor and rear oxygen sensor
Check
; the failure cause of PO1 31 or
‘01 32 in the fuel system?
boes the value fluctuate?
s the value fixed between 0.2
Ind 0.4 V?
;the resistance more than 3
2?
5 the voltage more than 0.2 V I
s there a fault in exhaust sysem?
Yes
;heck fuel system.
\IOTE:
n this case, it is
lot necessary to
nspect DTC
’01 36.
30 to step 7.
30 to step 5.
Repair open circuit
n harness
Detween ECM and
rear oxygen sensor connector.
Replace the rear
oxygen sensor.
TURBO)-44, Rear
Oxygen Sensor.>
Repair or replace
faulty parts.
No ;o to step 3.
io to step 4.
3eplace the rear
)xygen sensor.
:Ref. to FU(D0HC
rURBO)-44, Rear
lxygen Sensor.>
30 to step 6.
3epair harness
md connector.
\IOTE:
n this case, repai
he following:
1 Open circuit in
iarness between
‘ear oxygen sen;or and ECM conlector
1 Poor contact in
‘ear oxygen senjot‘ connector
1 Poor contact in
X M connector
3eplace the rear
ixygen sensor.
:Ref. to FU(D0HC
TURBO)-44, Rear
3xygen Sensor.>
EN(D0HC TURBO)-I49
DIAGNOSTIC PROCEDURE WITH DIAGNOSTIC TROUBLE CODE (DTC)
ENGINE (DIAGNOSTICS)
Y:
DTC DETECTING CONDITION:
CAUTION:
After repair or replacement of faulty parts, conduct Clear Memory Mode and Inspection Mode .
WIRING DIAGRAM:
DTC PO139 - REAR OXYGEN SENSOR CIRCUIT SLOW RESPONSE -
Two consecutive driving cycles with fault
41N RELAY BATTERY
EN1 144
EN(D0HC TURBO)-150
DIAGNOSTIC PROCEDURE WITH DIAGNOSTIC TROUBLE CODE (DTC)
ENGINE (DIAGNOSTICS)
Step Check
1 CHECK ANY OTHER DTC ON DISPLAY. Does the Subaru Select Monitor or OBD-ll general scan tool
indicate DTC PO136?
Yes
Inspect DTC
PO1 36 using “List
of Diagnostic Trouble Code (DTC)”.
TURBO)-80, List
No Replace the rear
oxygen sensor.
TURBO)-44, Rear
Oxygen Sensor.>
of Diagnostic Trouble Code (DTC).>
NOTE:
In this case, it is
not necessary to
inspect DTC
PO1 39.
EN(D0HC TURBO)-151
I m
DIAGNOSTIC PROCEDURE WITH DIAGNOSTIC TROUBLE CODE (DTC)
ENGINE (DIAGNOSTICS)
~~ ~
2: DTC PO171 - FUEL TRIM MALFUNCTION (NF TOO LEAN) -
NOTE:
For the diagnostic procedure, refer to DTC P0172. TRIM MALFUNCTION (NF TOO RICH) -, Diagnostic Procedure with Diagnostic Trouble Code (DTC).>
EN(D0HC TURBO)-152
DIAGNOSTIC PROCEDURE WITH DIAGNOSTIC TROUBLE CODE (DTC)
ENGINE (DIAGNOSTICS)
Check
4re there holes or loose bolts
i n exhaust system?
4re there holes, loose bolts or
lisconnection of hose on air
ntake system?
s fuel pressure between 284
md 314 kPa (2.9 - 3.2 kgl
:m2, 41 - 46 psi)?
~
AA:DTC PO172 - FUEL TRIM MALFUNCTION (NF TOO RICH) -
DTC DETECTING CONDITION:
Two consecutive driving cycles with fault
TROUBLE SYMPTOM:
Erroneous idling
Engine stalls.
Poor driving performance
CAUTION:
After repair or replacement of faulty parts, conduct Clear Memory Mode and Inspection Mode .
Yes No
Repair exhaust
system.
Repair air intake
system.
Go to step 4.
Go to step 2.
Go to step 3.
Repair the following items.
Fuel pressure too
high
Clogged fuel
return line or bent
hose
Fuel pressure too
low
Improper fuel
pump discharge
Clogged fuel
Step
CHECK EXHAUST SYSTEM.
! CHECK AIR INTAKE SYSTEM.
I CHECK FUEL PRESSURE.
Warning:
+lace “NO FIRE” signs near the working
area.
*Be careful not to spill fuel on the floor.
1)Release fuel pressure.
(1) Disconnect the connector from fuel
pump relay.
(2) Start the engine and run it until it stalls.
(3) After the engine stalls, crank it for five
more seconds.
(4) Turn the ignition switch to OFF.
2)Connect the connector to fuel pump relay.
3)Disconnect the fuel delivery hose from fuel
filter, and connect fuel pressure gauge.
4)lnstall the fuel filler cap.
5)Start the engine and idle while gear position
is neutral.
6)Measure the fuel pressure while disconnecting pressure regulator vacuum hose from
intake manifold.
Warning:
Before removing the fuel pressure gauge,
release fuel pressure.
NOTE:
If fuel pressure does not increase, squeeze fue
return hose 2 to 3 times, then measure fue
Dressure aaain.
EN(D0HC TURBO)-I53
DIAGNOSTIC PROCEDURE WITH DIAGNOSTIC TROUBLE CODE (DTC)
ENGINE (DIAGNOSTICS)
Step
CHECK FUEL PRESSURE.
After connecting the pressure regulator vacuum hose, measure fuel pressure.
Warning:
Before removing the fuel pressure gauge
release fuel pressure.
NOTE:
*If fuel pressure does not increase, squeeze
fuel return hose 2 to 3 times, then measure
fuel pressure again.
*If out of specification as measured at this step,
check or replace pressure regulator and pressure regulator vacuum hose.
CHECK ENGINE COOLANT TEMPERATURE
SENSOR.
1)Start the engine and warm-up completely.
2)Read the data of engine coolant temperature
sensor signal using Subaru Select Monitor or
~ B D - I I general scan tool.
NOTE:
*Subaru Select Monitor
For detailed operation procedure, refer to the
"READ CURRENT DATA FOR ENGINE.
to EN(D0HC TURBO)-38, Subaru Select Mon
itor.>
*OBD-ll general scan tool
For detailed operation procedures, refer to the
OBD-II General Scan Tool Instruction Manual.
CHECK PRESSURE SENSOR.
1)Start the engine and warm-up engine until
coolant temperature is greater than 60°C
(140°F).
2)Place the shift lever in neutral position.
3)Turn the A/C switch to OF!?
4)Turn all accessory switches to OFF.
5)Read the data of pressure sensor signal
using Subaru Select Monitor or OBD-ll genera
scan tool.
NOTE:
*Subaru Select Monitor
For detailed operation procedure, refer to the
"READ CURRENT DATA FOR ENGINE.
to EN(D0HC TURBO)-38, Subaru Select Mon
itor.>
*OBD-ll general scan tool
For detailed operation procedure, refer to the
OBD-ll General Scan Tool Instruction Manual.
Specification:
Ignition ON
. *Intake manifold absolute pressure
73.3 - 106.6 kPa (550 - 800 mmHg,
21.65 - 31.50 inHg)
24.0 - 41.3 kPa (180 - 310 mmHg,
7.09 - 12.20 inHg)
Idling
Check
; fuel pressure between 206
nd 235 kPa (2.1 - 2.4 kg/
n2, 30 - 34 psi)?
j temperature greater than
0°C (1 40"F)?
j the value within the specifiations?
Yes
io to step 5.
io to step 6.
i o to step 7.
No 3epair the followng items.
:uel pressure toa
iigh
Faulty pressure
egulator
Clogged fuel
'eturn line or bent
lose
'uel pressure toc
ow 1 Faulty pressure
'egulator
1 Improper fuel
lump discharge
1 Clogged fuel
supply line
3eplace the
mgine coolant
emperature sensor. 'U( DOHC
rURBO)-29,
Engine Coolant
remperature Sen;or.>
Replace the mass
3ir flow and pressure sensor. to FU(D0HC
TURBO)-34, Mas!
Air Flow and
Intake Air Temper
ature Sensor.>
EN(D0HC TURBO)-154
DIAGNOSTIC PROCEDURE WITH DIAGNOSTIC TROUBLE CODE (DTC)
ENGINE (DIAGNOSTICS)
~~
Check
s value obtained when ambi?nt temperature is subtracted
rom intake air temperature
jreater than -10°C (14°F) and
ess than 50°C (122”F)?
Step
CHECK INTAKE AIR TEMPERATURE SEN-
SOR.
1)Start the engine and warm-up engine until
coolant temperature is greater than 60°C
(1 40°F).
2)Place the shift lever in neutral position.
3)Turn the A/C switch to OFF.
4)Turn all accessory switches to OFF.
5)Open the front hood.
6)Measure the ambient temperature.
7)Read the data of pressure sensor signal
using Subaru Select Monitor or OBD-ll general
scan tool.
NOTE:
*Subaru Select Monitor
For detailed operation procedure, refer to the
“READ CURRENT DATA FOR ENGINE”.
to EN(D0HC TURBO)-38, Subaru Select Monitor.>
*OBD-I1 general scan tool
For detailed operation procedure, refer to the
OBD-I1 General Scan Tool Instruction Manual.
Yes No
Contact with SOA Check mass air
(distributor) ser- flow and intake air
vice. temperature senNOTE: sor. Inspection by DTM FU(D0HC
is required, be- TURBO)-34, Mass
cause probable Air Flow and
cause is deteriora- Intake Air Tempertion of multiple ature Sensor.>
parts,
I
I
EN(D0HC TURBO)-I55
1
DIAGNOSTIC PROCEDURE WITH DIAGNOSTIC TROUBLE CODE (DTC)
E NG I NE (DIAGNOSTICS)
AB:DTC PO181 - FUEL TEMPERATURE SENSOR A CIRCUIT RANGE/PERFOR-
MANCE PROBLEM -
DTC DETECTING CONDITION:
CAUTION:
After repair or replacement of faulty parts, conduct Clear Memory Mode and Inspection Mode .
WIRING DIAGRAM:
Two consecutive driving cycles with fault
I
FUEL TANK
FUEL TEMPERATURE / r i i N I O g l
I
F
A: @ ECM
B: @
I U
m m 6 7 8 9 10 11 12
m 6 7 8 9 10 11 12
FN11 A!
EN(D0HC TURBO)-I 56
DIAGNOSTIC PROCEDURE WITH DIAGNOSTIC TROUBLE CODE (DTC)
ENGINE (DIAGNOSTICS)
Yes
Inspect DTC
PO1 82 or PO1 83
using “List of Diagnostic Trouble
Code (DTC)”.
TURBO)SO, List
of Diagnostic Trouble Code (DTC).>
NOTE:
In this case, it is
not necessary to
inspect DTC
PO1 81.
Step
1 CHECK ANY OTHER DTC ON DISPLAY.
No Replace the fuel
temperature sensor. EC(D0HC
TURBO)-9, Fuel
Temperature Sensor.>
Check
>oes the Subaru Select Monior or OBD-ll general scan tool
ndicate DTC PO1 82 or PO1 83?
EN(D0HC TURBO)-157
DIAGNOSTIC PROCEDURE WITH DIAGNOSTIC TROUBLE CODE (DTC)
ENGINE (DIAGNOSTICS)
AC:DTC PO182 - FUEL TEMPERATURE SENSOR A CIRCUIT LOW INPUT -
DTC DETECTING CONDITION:
CAUTION:
After repair or replacement of faulty parts, conduct Clear Memory Mode and Inspection Mode .
WIRING DIAGRAM:
Immediately at fault recognition
FUEL TANK -
FUEL TEMPERATURE I I SENSOR 1
I H
4 5 6
EN1 149 I
EN(D0HC TURBO)-158
DIAGNOSTIC PROCEDURE WITH DIAGNOSTIC TROUBLE CODE (DTC)
ENGINE (DIAGNOSTICS)
3eplace the fuel
emperature sen;or. X(DOHC
rURBO)-9, Fuel
remperature SenStep
CHECK CURRENT DATA.
1)Start the engine.
2)Read the data of fuel temperature sensor
signal using Subaru Select Monitor or OBD-ll
general scan tool.
NOTE:
*Subaru Select Monitor
For detailed operation procedure, refer to the
"READ CURRENT DATA FOR ENGINE.
to EN(D0HC TURBO)-38, Subaru Select Monitor.>
*OBD-ll general scan tool
For detailed operation procedures, refer to the
OBD-ll General Scan Tool Instruction Manual.
CHECK CURRENT DATA.
1)Turn the ignition switch to OFF.
2)Remove the access hole lid.
3)Disconnect the connector from fuel pump.
4)Turn the ignition switch to ON.
5)Read the data of fuel temperature sensor
signal using Subaru Select Monitor or the
OBD-ll general scan tool.
*Subaru Select Monitor
For detailed operation procedure, refer to the
"READ CURRENT DATA FOR ENGINE.
to EN(D0HC TURBO)-38, Subaru Select Monitor.>
*OBD-ll general scan tool
For detailed operation procedures, refer to the
OBD-ll General Scan Tool Instruction Manual.
N ~ T E :
Repair ground
short circuit in harness between fuel
pump and ECM
connector.
Check
s the value greater than 120°C
248"F)?
s the value less than -40°C
-4O"F)?
up, the circuit has
returned to a normal condition at
this time.
;or.>
EN(D0HC TURBO)-159
DIAGNOSTIC PROCEDURE WITH DIAGNOSTIC TROUBLE CODE (DTC)
AD:DTC PO183 - FUEL TEMPERATURE SENSOR A CIRCUIT HIGH INPUT -
DTC DETECTING CONDITION:
CAUTION:
After repair or replacement of faulty parts, conduct Clear Memory Mode and Inspection Mode .
WIRING DIAGRAM:
Immediately at fault recognition
FUEL TANK
I
FUEL TEMPERATURE I SENSOR
EN(D0HC TURBO)-I60
DIAGNOSTIC PROCEDURE WITH DIAGNOSTIC TROUBLE CODE (DTC)
ENGINE (DIAGNOSTICS)
Step Check Yes
1)Start the engine.
2)Read the data of fuel temperature sensor
signal using Subaru Select Monitor or OBD-II
general scan tool.
NOTE:
*Subaru Select Monitor
For detailed operation procedure, refer to the
"READ CURRENT DATA FOR ENGINE".
to EN(D0HC TURBO)-38, Subaru Select Mom
itor.>
*OBD-II general scan tool
For detailed operation procedures, refer to the
OBD-ll General Scan Tool Instruction Manual.
CHECK CURRENT DATA.
(-40" F)?
Is the value less than -40°C \Go to step 2.
CHECK HARNESS BETWEEN FUEL TEM- I Is the voltage more than 10 V?
PERATURE SENSOR AND ECM CONNEC-
TOR.
1)Turn the ignition switch to OFF.
2)Remove the access hole lid.
3)Disconnect the connector from fuel pump.
4)Measure the voltage between fuel pump
tonnector and chassis ground.
Connector & terminal
(R58) No. 5 (+) - Chassis ground (-):
CHECK HARNESS BETWEEN FUEL TEM-
PERATURE SENSOR AND ECM CONNEC-
TOR.
1)Turn the ignition switch to ON.
2)Measure the voltage between fuel pump
connector and chassis ground.
Connector & terminal
(R58) No. 5 (+) - Chassis ground (-):
I CHECK HARNESS BETWEEN FUEL TEM-
PERATURE SENSOR AND ECM CONNEC-
TOR.
Measure the voltage between fuel pump connector and chassis ground.
Connector & terminal
(R58) No. 5 (+) - Chassis ground (-):
I fiepair battery
Is the voltage more than 10 V?
Is the voltage more than 4 V?
short circuit in har.
ness between
ECM and fuel
pump connector.
short circuit in har,
ness between
ECM and fuel
pump connector.
No 3epair poor conact.
4OTE:
n this case, repaii
he following:
Poor contact in
uel pump connecor Poor contact in
ICM connector
' Poor contact in
:oupling connecors
Poor contact in
oint connector
30 to step 3.
30 to step 4.
3epair harness
ind connector.
\IOTE:
n this case, repaii
:he following:
1 Open circuit in
iarness between
ECM and fuel
x m p connector
1 Poor contact in
'uel pump connec:or
1 Poor contact in
X M connector
1 Poor contact in
:oupling connec:ors
EN(D0HC TURBO)-I61
DIAGNOSTIC PROCEDURE WITH DIAGNOSTIC TROUBLE CODE (DTC)
ENGINE (DIAGNOSTICS)
Yes
Replace the fuel
temperature sensor. EC(D0HC
TURBO)-9, Fuel
Temperature Senso r. >
Step
CHECK HARNESS BETWEEN FUEL TEM-
PERATURE SENSOR AND ECM CONNEC-
TOR.
1)Turn the ignition switch to OFF.
2)Measure the resistance of harness between
fuel pump connector and chassis ground.
(R58) No. 4 - Chassis ground:
Connector & terminal
No Repair harness
and connector.
NOTE:
In this case, repai
the following:
Open circuit in
harness between
ECM and fuel
pump connector
Poor contact in
fuel pump connector
Poor contact in
ECM connector
Poor contact in
coupling connectors
Poor contact in
joint connector
Check
s the resistance less than 5
2?
EN(D0HC TURBO)-162
DIAGNOSTIC PROCEDURE WITH DIAGNOSTIC TROUBLE CODE (DTC)
ENGINE (DIAGNOSTICS)
EN(D0HC TURBO)-1 63
DIAGNOSTIC PROCEDURE WITH DIAGNOSTIC TROUBLE CODE (DTC)
ENGINE (DIAGNOSTICS)
AE:DTC PO244 - WASTEGATE CONTROL SOLENOID VALVE MALFUNCTION
DTC DETECTING CONDITION:
Two consecutive driving cycles with fault
TROUBLE SYMPTOM:
Erroneous idling
Engine stalls.
Poor driving performance
(HIGH INPUT) -
CAUTION:
After repair or replacement of faulty parts, conduct Clear Memory Mode and Inspection Mode .
WIRING DIAGRAM:
MAIN RELAY
BATTERY
n t 1 WASTE 1
CONTROL
@ ECM n 71
ITE
LENOID
VALVE
I
5 6
EN1150
EN(D0HC TURBO)-I64
DIAGNOSTIC PROCEDURE WITH DIAGNOSTIC TROUBLE CODE (DTC)
ENGINE (DIAGNOSTICS)
Step
1 CHECK ANY OTHER DTC ON DISPLAY.
Check Yes
Does the Subaru Select Moni- Inspect DTC
tor or OBD-II general scan tool PO245 or PO246
indicate DTC PO245 or P0246? using “List of Diagnostic Trouble
Code (DTC)”.
TURBO)-80, List
of Diagnostic Trouble Code (DTC).>
NOTE:
In this case, it is
not necessary tc
inspect DTC
P0244.
No Replace the
wastegate control
solenoid valve.
Wastegate Control Solenoid
Valve.>
TURBO)-41,
EN(D0HC TURBO)-165
-
DIAGNOSTIC PROCEDURE WITH DIAGNOSTIC TROUBLE CODE (DTC)
ENGINE (DIAGNOSTICS)
AF:DTC PO245 - WASTEGATE CONTROL SOLENOID VALVE CIRCUIT LOW
DTC DETECTING CONDITION:
Immediately at fault recognition
TROUBLE SYMPTOM:
Erroneous idling
CAUTION:
After repair or replacement of faulty parts, conduct Clear Memory Mode and Inspection Mode .
WIRING DIAGRAM:
INPUT -
MAIN RELAY
flu& BATTERY
SBF 5 3 c
. @
WASTEGATE
CONTROL SOLENOID
I
f -
VALVE
EN(D0HC TURBO)-166
DIAGNOSTIC PROCEDURE WITH DIAGNOSTIC TROUBLE CODE (DTC)
ENGINE (DIAGNOSTICS)
-
Step
CHECK OUTPUT SIGNAL FROM ECM.
1)Turn the ignition switch to ON.
2)Measure the voltage between ECM and
chassis ground.
Connector & terminal
(6137) No, 24 (+) - Chassis ground (-):
CHECK HARNESS BETWEEN WASTEGATE
CONTROL SOLENOID VALVE AND ECM
CONNECTOR.
1)Turn the ignition switch to OFF:
2)Disconnect the connectors from wastegate
control solenoid valve and ECM.
3)Measure the resistance of harness between
wastegate control solenoid valve connector
atid engine ground.
Connector & terminal
(8127) No, 1 - Engine ground:
CHECK HARNESS BETWEEN WASTEGATE
CONTROL SOLENOID VALVE AND ECM
CONNECTOR.
Measure the resistance of harness between
ECM and wastegate control solenoid valve of
harness connector.
Connector & terminal
(8137) NO. 24 - (8127) NO. 1:
CHECK WASTEGATE CONTROL SOLE-
NOID VALVE.
1)Remove the purge control solenoid valve.
2)Measure the resistance between purge control solenoid valve terminals.
Terminals
NO. 1 -NO. 2:
CHECK POWER SUPPLY TO WASTEGATE
CONTROL SOLENOID VALVE.
1)Turn the ignition switch to ON.
2)Measure the voltage between wastegate
. control solenoid valve and engine ground.
Connector & terminal
(8127) No. 2 (+) - Engine ground (-):
Check
s the voltage more than 10 V?
s the resistance less than 10
3?
s the resistance less than 1
n? Is the resistance between 30
m d 34 R?
Is the voltage more than 10 V?
Yes
Even if MIL lights
JP, the circuit has
,eturned to a nornal condition at
his time. Contact
with SOA (distribuor) service.
UOTE:
nspection by DTM
s required, be:ause probable
:ause is deteriora:ion of multiple
Darts.
3epair ground
short circuit in harless between
ECM and wasteaate control soleioid valve
Zonnector.
%lo to step 4.
Go to step 5.
Go to step 6.
~~
No 20 to step 2.
30 to step 3.
Repair open circuij
in harness
between ECM and
wastegate control
solenoid valve
connector.
NOTE:
In this case, repai
the following:
Open circuit in
harness between
ECM and wastegate control solenoid valve
connector
Replace the
wastegate control
solenoid valve.
Wastegate Control Solenoid
Valve.>
Repair open circui
in harness
between main
relay and wastegate control solenoid valve
connector.
TURBO)-41,
EN(D0HC TURBO)-167
DIAGNOSTIC PROCEDURE WITH DIAGNOSTIC TROUBLE CODE (DTC)
I
ENGINE (DIAGNOSTICS)
Check
Is there poor contact in wastegate control solenoid valve
connector?
Step Yes No
Repair poor contact in wastegate (distributor) sercontrol solenoid vice.
valve connector. NOTE:
Contact with SOA
Inspection by DTM
is required, because probable
cause is deterioration of multiple
parts.
6 CHECK POOR CONTACT.
Check poor contact in wastegate control soleEN(D0HC TURBO)-168
DIAGNOSTIC PROCEDURE WITH DIAGNOSTIC TROUBLE CODE (DTC)
ENGINE (DIAGNOSTICS)
EN(D0HC TURBO)-I69
DIAGNOSTIC PROCEDURE WITH DIAGNOSTIC TROUBLE CODE (DTC)
ENGINE (DIAGNOSTICS)
AG:DTC PO246 - WASTEGATE CONTROL SOLENOID VALVE CIRCUIT HIGH
DTC DETECTING CONDITION:
Immediately at fault recognition
TROUBLE SYMPTOM:
Erroneous idling
CAUTION :
After repair or replacement of faulty parts, conduct Clear Memory Mode and Inspection Mode .
WIRING DIAGRAM:
INPUT -
AIN RELAY
. @
@ ECM &
WASTEGATE
CONTROL SOLENOID
VALVE
I
EN(D0HC TURBO)-170
DIAGNOSTIC PROCEDURE WITH DIAGNOSTIC TROUBLE CODE (DTC)
ENGINE (DIAGNOSTICS)
Step Check
1 CHECK OUTPUT SIGNAL FROM ECM.
1)Turn the ignition switch to ON.
2)Measure the voltage between ECM and
chassis ground.
Is the voltage more than 10 V?
Connector & terminal
(8137) No. 24 (+) - Chassis ground (-):
2 CHECK POOR CONTACT. Is there poor contact in ECM
Check poor contact in ECM connector. connector?
Yes
Go to step 3.
Repair poor contact in ECM connector.
3 CHECK HARNESS BETWEEN WASTEGATE
CONTROL SOLENOID VALVE AND ECM
CONNECTOR.
1)Turn the ignition switch to OFF.
2)Disconnect the connector from wastegate
control solenoid valve.
3)Turn the ignition switch to ON.
4)Measure the voltage between ECM and
chassis ground.
Connector & terminal
(8137) No. 24 (+) - Chassis ground (-):
4 CHECK WASTEGATE CONTROL SOLE-
NOlD VALVE.
1)Turn the ignition switch to OFF.
2)Measure the resistance between wastegate
control solenoid valve terminals.
Terminals
NO. 1 -NO. 2:
5 CHECK POOR CONTACT.
Check poor contact in ECM connector.
Is the voltage more than 10 V? Repair battery
short circuit in harness between
ECM and wastegate control solenoid valve
connector. After
repair, replace the
ECM. FU(D0HC
Engine Control
Module.>
Is the resistance less than 1 Replace the
a? wastegate control
solenoid valve
Wastegate Control Solenoid
Valve.> and ECM
Engine Control
Module.>
Is there poor contact in ECM Repair poor conconnector? tact in ECM connector.
TURBO)-47,
TURBO)-41,
TURBO)-47,
No Go to step 2.
Replace the ECM.
Engine Control
Module.>
Go to step 4.
TURBO)-47,
Go to step 5.
Replace the ECM.
Engine Control
Module.>
TURBO)-47,
EN(D0HC TURBO)-I71
DIAGNOSTIC PROCEDURE WITH DIAGNOSTIC TROUBLE CODE (DTC)
ENGINE IDIAGNOSTICS)
AH:DTC PO301 - CYLINDER 1 MISFIRE DETECTED -
NOTE:
For the diagnostic procedure, refer to DTC P0304.
AI: DTC PO302 - CYLINDER 2 MISFIRE DETECTED -
NOTE:
For the diagnostic procedure, refer to DTC P0304.
AJ:DTC PO303 - CYLINDER 3 MISFIRE DETECTED -
NOTE:
For the diagnostic procedure, refer to DTC P0304.
EN(D0HC TURBO)-172
-
DIAGNOSTIC PROCEDURE WITH DIAGNOSTIC TROUBLE CODE (DTC)
ENGINE [DIAGNOSTICS)
AK:DTC PO304 - CYLINDER 4 MISFIRE DETECTED -
DTC DETECTING CONDITION:
Two consecutive driving cycles with fault
Immediately at fault recognition (A misfire which could damage catalyst occurs.)
TROUBLE SYMPTOM:
Engine stalls.
Erroneous idling
Rough driving
CAUTION :
After repair or replacement of faulty parts, conduct Clear Memory Mode and Inspection Mode .
EN(D0HC TURBO)-173
DIAGNOSTIC PROCEDURE WITH DIAGNOSTIC TROUBLE CODE (DTC)
ENGINE (DIAGNOSTICS)
WIRING DIAGRAM:
MAIN RELAY
SBF-5 3 c
FUEL INJECTORS
M
EN1 142
EN(D0HC TURBO)-174
and connector.
NOTE:
In this case, rep?
the following:
Open circuit in
harness between
ECM and fuel
injector connect0
Poor contact in
coupling connect
Replace the faulty
fuel injector. to FU(D0HC
TURBO)-37, Fuel
Injector.>
Go to step 6.
1
CHECK OUTPUT SIGNAL FROM ECM.
1)Turn the ignition switch to ON.
2)Measure the voltage between ECM connector and chassis ground on faulty cylinders.
Connector & terminal
#1 (6137) No. 1 (+) - Chassis
ground (-):
#2 (6136) No, 6 (+) - Chassis
ground (-):
#3 (8136) No. 5 (+) - Chassis
ground (-):
#4 (6136) No. 4 (+) - Chassis
around (-1:
Yes Step Check No
CHECK ANY OTHER DTC ON DISPLAY. Does the Subaru Select Monitor or OBD-II general scan tool
indicate DTC P0106, P0107,
PO1 08, PO1 17, PO1 18 or
PO1 25?
3epair ground
;hort circuit in ha1
less between fue
njector and ECM
:onnector.
Inspect DTC
P0106, P0107,
P0108, P0117,
PO1 18 or PO1 25
using “List of Diag.
nostic Trouble
Go to step 2.
Go to step 5.
Is the voltage more than 10 V? ;o to step 3.
30 to step 4.
Repair harness
Code (DTC)”.
TURBO)-80, List
of Diagnostic Trou,
ble Code (DTC).>
NOTE:
In this case, it i!
not necessary tc
inspect DT(
P0301, PO302
PO303 and PO304
Go to step 7.
I . ,
CHECK HARNESS BETWEEN FUEL INJEC-
1)Turn the ignition switch to OFF.
2)Disconnect the connector from fuel injector
on faulty cylinders.
3)Disconnect the connector from ECM.
4)Measure the voltage between ECM connector and engine ground on faulty cylinders.
TOR AND ECM CONNECTOR.
Connector & terminal
#1 (€5) No. 1 (+) - Engine ground (-):
#2 (€16) No. 1 (+) - Engine ground (-):
#3 (E6) No. 1 (+) - Engine ground (-):
#4 (El 7) No. 1 (+) - Engine ground (-):
CHECK HARNESS BETWEEN FUEL INJEC-
TOR AND ECM CONNECTOR.
Measure the resistance of harness connector
between ECM connector and fuel injector on
faulty cylinders.
I
Connector & terminal
#1 (6137) NO. 1 -(E5) NO. 1:
#2 (8136) NO. 6 - (E16) NO. 1:
#3 (8136) NO. 5 - (E6) NO. 1:
#4 (6136) NO. 4 - (E17) NO. 1:
5 CHECK FUEL INJECTOR.
Measure the resistance between fuel injector
terminals on faulty cylinder.
Terminals
NO. 1 - NO. 2:
EN(D0HC TURBO)-175
Is the resistance less than 10
R?
Is the resistance less than 1
Q?
Is the resistance between 5
and 20 R?
DIAGNOSTIC PROCEDURE WITH DIAGNOSTIC TROUBLE CODE (DTC)
ENGINE (DIAGNOSTICS)
Yes
3epair poor conact in all connecors in fuel injector
:ircuit.
3epair battery
;hort circuit in harless between
ICM and fuel
njector. After
epair, replace the
ICM. W(D0HC
Ingine Control
vlodu1e.B
rURBO)-47,
No Repair harness
and connector.
NOTE:
In this case, repa
the following:
Open circuit in
harness between
main relay and fue
injector connector
on faulty cylinders
Poor contact in
coupling connectc
Poor contact in
main relay connec
tor
Poor contact in
fuel injector connector on faulty
cylinders
Go to step 8.
Step
I CHECK POWER SUPPLY LINE.
1)Turn the ignition switch to ON.
Check
Is the voltage more than 10 V?
CHECK HARNESS BETWEEN FUEL INJEC-
TOR AND ECM CONNECTOR.
1)Turn the ignition switch to OFF.
2)Disconnect the connector from fuel injector
on faulty cylinder.
3)Turn the ignition switch to ON.
4)Measure the voltage between ECM connector and chassis ground on faulty cylinders.
Connector & terminal
#1 (8137) No. 1 (+) - Chassis
ground (-)I
#2 (8136) No. 6 (+) - Chassis
ground (-):
#3 (8136) No. 5 (+) - Chassis
ground (-):
ground (-):
I CHECK FUEL INJECTOR.
#4 (8136) NO. 4 (+) - Chassis
1)Turn the ignition switch to OFF.
2)Measure the resistance between fuel injector
terminals on faulty cylinder.
Terminals
NO. 1 -NO. 2:
1 CHECK INSTALLATION OF CAMSHAFT PO-
SlTlON SENSOWCRANKSHAFT POSITION
SENSOR.
10 CHECK CRANKSHAFT SPROCKET.
Remove the timing belt cover.
EN(D0HC TURBO)-I76
Is the voltage more than 10 V?
Is the resistance less than 1
R?
Is the camshaft position sensor
or crankshaft position sensor
loosely installed?
Is the crankshaft sprocket
rusted or does it have broken
teeth?
3eplace the faulty
uel injector o FU(D0HC
rURBO)-37, Fuel
njector.> and
ICM W(D0HC
Ingine Control
vlodule.>
righten camshaft
iosition sensor or
:rankshaft posiion sensor.
3eplace the crank;haft sprocket.
:Ref. to
vlE(D0HC
;rankshaft
Sprocket.>
rURBO)-47,
rURBO)-58,
Go to step 9.
Go to step 10.
Go to step 11.
m DIAGNOSTIC PROCEDURE WITH DIAGNOSTIC TROUBLE CODE (DTC)
ENGINE (DIAGNOSTICS)
Step
1 CHECK INSTALLATION CONDITION OF
TIMING BELT.
Turn the crankshaft using ST, and align alignment mark on crankshaft sprocket with alignment mark on cylinder block.
ST 499987500 CRANKSHAFT SOCKET
2 CHECK FUEL LEVEL.
3 CHECK STATUS OF CHECK ENGINE MAL-
FUNCTION INDICATOR LAMP (MIL).
1)Clear the memory using Subaru Select Monitor.

2)Start the engine, and drive the vehicle more
than 10 minutes.
CHECK CAUSE OF MISFIRE DIAGNOSED. 4
5 CHECK AIR INTAKE SYSTEM.
~
Check
5 the timing belt dislocated
rom its proper position?
s the fuel meter indication
bigher than the “Lower” level?
s the MIL coming on or blinkng?
Mas the cause of misfire diagiosed when the engine is runling?
s there a fault in air intake sys
em?
Yes
Repair installation
condition of timing
belt. ME(D0HC
TURBO)-48, Timing Belt Assembly.>
Go to step 13.
Go to step 15.
Finish diagnostics
operation, if the
engine has no
abnormality.
NOTE:
Ex. Remove the
spark plug cord,
etc.
Repair air intake
system.
NOTE:
Check the follow.
ing items:
Are there air
leaks or air suction
caused by loose or
dislocated nuts
and bolts?
Are there cracks
or any disconnection of hoses?
No 30 to step 12.
Replenish fuel so
bel meter indication is higher than
the “Lower” level.
After replenishing
fuel, Go to step 13
So to step 14.
Repair poor contact.
NOTE:
In this case, repai
the following:
Poor contact in
ignitor connector
Poor contact in
ignition coil connector
Poor contact in
fuel injector connector on faulty
cylinders
Poor contact in
ECM connector
Poor contact in
coupling connectc
Go to step 16.
EN(D0HC TURBO)-177
DIAGNOSTIC PROCEDURE WITH DIAGNOSTIC TROUBLE CODE (DTC)
ENGINE (DIAGNOSTICS)
Check Step
6 CHECK MISFIRE SYMPTOM.
1)Turn the ignition switch to ON.
2)Read the diagnostic trouble code (DTC).
*Subaru Select Monitor
Select Monitor.>
*OBD-II general scan tool
For detailed operation procedures, refer to the
OBD-ll General Scan Tool Operation Manual.
NOTE:
Perform diagnosis according to the items listec
below.
(DTC) ON DISPLAY.
7 CHECK DIAGNOSTIC TROUBLE CODE
Yes
8 CHECK DIAGNOSTIC TROUBLE CODE
(DTC) ON DISPLAY.
Does the Subaru Select Monitor or OBD-ll general scan tool
indicate DTC PO301 and
P0302?
Does the Subaru Select Monitor or OBD-II general scan tool
indicate DTC PO303 and
P0304?
Does the Subaru Select Monitor or OBD-ll general scan tool
indicate DTC PO301 and
P0303?
Does the Subaru Select Monitor or OBD-I1 general scan tool
indicate DTC PO302 and
P0304?
Is there a fault in that cylinder?
9 CHECK DIAGNOSTIC TROUBLE CODE
(DTC) ON DISPLAY.
Go to step 22.
Go to step 23.
Go to step 24.
Go to step 25.
Repair or replace
faulty parts.
NOTE:
Check the following items.
Spark plug
Spark plug cord
Fuel injector
Compression
ratio
0 CHECK DIAGNOSTIC TROUBLE CODE
(DTC) ON DISPLAY.
1 ONLY ONE CYLINDER
tor or OBD-ll general scan tool
indicate only one DTC?
No 30 to step 17.
30 to step 18.
30 to step 19.
20 to step 20.
30 to step 26.
30 to DTC PO171
md P0172. o EN(D0HC
rURBO)-152,
ITC PO171 -
'UEL TRIM MAL-
UNCTION (NF
Iiagnostic Procelure with Diagnos
ic Trouble Code
DTC).>
'00 LEAN) -,
EN(D0HC TURBO)-178
a DIAGNOSTIC PROCEDURE WITH DIAGNOSTIC TROUBLE CODE (DTC)
ENGINE (DIAGNOSTICS)
Check
4re there faults in #1 and #2
:ylinders?
Ire there faults in #3 and #4
:ylinders?
4re there faults in #1 and #3
:ylinders?
Step
GROUP OF #1 AND #2 CYLINDERS !2
Yes
Repair or replace
faulty parts.
NOTE:
Check the following items.
Spark plugs
Fuel injectors
Ignition coil
Compression ratio
If no abnormal is
discovered, check
for “IGNITION
TEM” of #1 and #2
cylinders side.
TION CONTROL
SYSTEM, Diagnostics for Engine
Starting Failure.>
Repair or replace
faulty parts.
NOTE:
Check the following items.
CONTROL SYS-
TURBO)-72, IGNI-
Spark plugs
Fuel injectors
Ignition coil
If no abnormal is
discovered, check
for “IGNITION
TEM” of #3 and #4
cylinders side.
TION CONTROL
SYSTEM, Diagnostics for Engine
Starting Failure.>
Repair or replace
faulty parts.
NOTE:
Check the following items.
Spark plugs
Fuel injectors
Skipping timing
belt teeth
CONTROL SYS-
TURBO)-72, IGNI-
23 GROUP OF #3 AND #4 CYLINDERS
24 GROUP OF #1 AND #3 CYLINDERS
No Go to DTC PO171
and P0172. to EN(D0HC
TURBO)-1 52,
DTC PO171 -
FUEL TRIM MAL-
FUNCTION (NF
Diagnostic Procedure with Diagnostic Trouble Code
(DTC).>
TOO LEAN) -,
Go to DTC PO171
and P0172. to EN(D0HC
TURBO)-1 52,
DTC PO171 -
FUEL TRIM MAL-
FUNCTION (NF
Diagnostic Procedure with Diagnostic Trouble Code
(DTC).>
TOO LEAN) -,
Go to DTC PO171
and PO172. to EN(D0HC
TURBO)-1 52,
DTC PO171 -
FUEL TRIM MAL-
FUNCTION ( N F
Diagnostic Procedure with Diagnos
tic Trouble Code
( D T C b
TOO LEAN) -,
EN(D0HC TURBO)-I79
DIAGNOSTIC PROCEDURE WITH DIAGNOSTIC TROUBLE CODE (DTC)
ENGINE (DIAGNOSTICS)
Check
Are there faults in #2 and #4
cylinders?
Is the engine idle rough?
Step
GROUP OF #2 AND #4 CYLINDERS !5
Yes
Repair or replace
faulty parts.
NOTE:
Check the following items.
Spark plugs
Fuel injectors
Compression
ratio
Skipping timing
belt teeth
Go to DTC PO171
and P0172. to EN(D0HC
TURBO)-152,
DTC PO171 -
FUEL TRIM MAL-
FUNCTION (NF
Diagnostic Procedure with Diagnostic Trouble Code
(DTC).>
TOO LEAN) -,
!6 CYLINDER AT RANDOM
No Go to DTC PO171
and P0172. to EN(D0HC
TURBO)-1 52,
DTC PO171 -
FUEL TRIM MAL-
FUNCTION (NF
Diagnostic Procedure with Diagnostic Trouble Code
(DTC).>
Repair or replace
faulty parts.
NOTE:
Check the follow.
ing items.
Spark plugs
Fuel injectors
Compression
ratio
TOO LEAN) -,
EN(D0HC TURBO)-I80
DIAGNOSTIC PROCEDURE WITH DIAGNOSTIC TROUBLE CODE (DTC)
ENGINE (DIAGNOSTICS)
EN(D0HC TURBO)-181
DIAGNOSTIC PROCEDURE WITH DIAGNOSTIC TROUBLE CODE (DTC)
ENGlN E (DIAGNOSTICS)
AL:DTC PO327 - KNOCK SENSOR CIRCUIT LOW INPUT -
DTC DETECTING CONDITION:
Immediately at fault recognition
TROUBLE SYMPTOM:
Poor driving performance
Knocking occurs.
CAUTION:
After repair or replacement of faulty parts, conduct Clear Memory Mode and Inspection Mode .
WIRING DIAGRAM:
KNOCK
SENSOR
I
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-1
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4
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h @ECM
EN0975
EN(D0HC TURBO)-1 82
DIAGNOSTIC PROCEDURE WITH DIAGNOSTIC TROUBLE CODE (DTC)
ENGINE (DIAGNOSTICS)
Step
CHECK HARNESS BETWEEN KNOCK SEN-
SOR AND ECM CONNECTOR.
1)Turn the ignition switch to OFF.
2)Disconnect the connector from ECM.
3)Measure the resistance between ECM harness connector and chassis ground.
Connector & terminal
(8135) No. 4 - Chassis ground:
! CHECK KNOCK SENSOR.
1)Disconnect the connector from knock sensor
2)Measure the resistance between knock sensor connector terminal and engine ground.
Terminal
No. 2 - €ngine ground:
I CHECK CONDITION OF KNOCK SENSOR
INSTALLATION.
Check
s the resistance more than
700 kR?
s the resistance more than
700 kR?
Is the knock sensor installation
solt tightened securely?
~ ~~
Yes
20 to step 2.
30 to step 3.
3eplace the knock
sensor. W(D0HC
TURBO)-32,
hock Sensor.>
No Repair harness
and connector.
NOTE:
In this case, repaii
the following:
Open circuit in
harness between
knock sensor and
ECM connector
Poor contact in
knock sensor connector
Poor contact in
coupling connectoi
Repair harness
and connector.
NOTE:
In this case, repai
the following:
Open circuit in
harness between
knock sensor and
ECM connector
Poor contact in
knock sensor connector
Poor contact in
coupling connect0
Tighten knock sen
sor installation bolt
securely.
EN(D0HC TURBO)-I83
DIAGNOSTIC PROCEDURE WITH DIAGNOSTIC TROUBLE CODE (DTC)
ENGINE (DIAGNOSTICS)
~ ~~
AM:DTC PO328 - KNOCK SENSOR CIRCUIT HIGH INPUT -
DTC DETECTING CONDITION:
Immediately at fault recognition
TROUBLE SYMPTOM:
Poor driving performance
Knocking occurs.
CAUTION:
After repair or replacement of faulty parts, conduct Clear Memory Mode and Inspection Mode .
WIRING DIAGRAM:
KNOCK
SENSOR
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i @ ECM
EN0975
EN(D0HC TURBO)-184
DIAGNOSTIC PROCEDURE WITH DIAGNOSTIC TROUBLE CODE (DTC)
I
ENGINE (DIAGNOSTICS)
Step
CHECK HARNESS BETWEEN KNOCK SEN-
SOR AND ECM CONNECTOR.
Measure the resistance of harness between
ECM connector and chassis ground.
Connector & terminal
(8135) No. 4 - Chassis ground:
! CHECK KNOCK SENSOR.
1)Disconnect the connector from knock sensor.
Check
Is the resistance less than 400
kR?
Is the resistance less than 400
kR?
I CHECK INPUT SIGNAL FOR ECM.
1)Connect the connectors to ECM and knock
sensor.
2)Turn the ignition switch to ON.
3)Measure the voltage between ECM and
chassis ground.
Connector & terminal
(6135) No. 4 (+) - Chassis ground (-):
Replace the knock
sensor. FU(D0HC
Knock Sensor.>
TURBO)-32,
Even if MIL lights
up, the circuit has
returned to a nors the voltage more than 2 V?
Repair ground
short circuit in har
ness between
knock sensor connector and ECM
connector.
NOTE:
The harness be
tween both con
nectors i!
shielded. Repai
short circuit of har
ness together witt
shield.
Repair poor contact in ECM connector.
EN(D0HC TURBO)-185
I
DIAGNOSTIC PROCEDURE WITH DIAGNOSTIC TROUBLE CODE (DTC)
ENGINE (DIAGNOSTICS)
AN:DTC PO335 - CRANKSHAFT POSITION SENSOR CIRCUIT MALFUNCTION -
DTC DETECTING CONDITION:
TROUBLE SYMPTOM:
immediately at fault recognition
Engine stalls.
Failure of engine to start
CAUTION:
After repair or replacement of faulty parts, conduct Clear Memory Mode and Inspection Mode .
WIRING DIAGRAM:
CRANKSHAFT
POSITION n SENSOR
E
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F
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t IC
@ ECM 0
EN097f
EN(D0HC TURBO)-186
DIAGNOSTIC PROCEDURE WITH DIAGNOSTIC TROUBLE CODE (DTC)
ENGINE (DIAGNOSTICS)
Check
s the resistance more than
100 kR?
s the resistance less than 10
2?
s the resistance less than 5
2?
Step
CHECK HARNESS BETWEEN CRANK-
SHAFT POSITION SENSOR AND ECM CON-
NECTOR.
1)Turn the ignition switch to OFF.
2)Disconnect the connector from crankshaft
position sensor.
3)Measure the resistance of harness between
crankshaft position sensor connector and
engine ground.
Connector & terminal
(E10) No. 1 - Engine ground:
Yes
Repair harness
and connector.
NOTE:
In this case, repaii
the following:
Open circuit in
harness between
crankshaft position sensor and
ECM connector
Poor contact in
ECM connector
Poor contact in
coupling connectoi
Repair ground
short circuit in harness between
crankshaft position sensor and
ECM connector.
NOTE:
The harness between both connectors are
shielded. Repaii
ground short circuii
in harness together with shield.
Go to step 4.
CHECK HARNESS BETWEEN CRANK-
SHAFT POSITION SENSOR AND ECM CON-
NECTOR.
Measure the resistance of harness between
crankshaft position sensor connector and
engine ground.
Connector & terminal
(€10) No. 1 - Engine ground:
CHECK HARNESS BETWEEN CRANK-
SHAFT POSITION SENSOR AND ECM CON-
NECTOR.
Measure the resistance of harness between
crankshaft position sensor connector and
engine ground.
Connector & terminal
(E10) No. 2 - Engine ground:
CHECK CONDITION OF CRANKSHAFT PO-
SITION SENSOR.
I CHECK CRANKSHAFT POSITION SENSOR.
1)Remove the crankshaft position sensor.
2)Measure the resistance between connector
terminals of crankshaft position sensor.
Terminals
NO. 1 -NO. 2:
s the crankshaft position sen;or installation bolt tightened
securely?
Go to step 5.
2nd 4 kR? tact in crankshaft
position sensor
connector.
No 30 to step 2.
30 to step 3.
3epair harness
2nd connector.
IOTE:
n this case, repaii
he following:
I Open circuit in
iarness between
:rankshaft posiion sensor and
ICM connector
1 Poor contact in
ECM connector
1 Poor contact in
:oupling connectoi
righten the crank;haft position sen;or installation bolt
securely.
3eplace the crank.
;haft position sen;or. U(D0HC
2 ranks haft Posiion Sensor.>
rURBO)-30,
EN(D0HC TURBO)-187
DIAGNOSTIC PROCEDURE WITH DIAGNOSTIC TROUBLE CODE (DTC)
ENGINE (DIAGNOSTICS)
A0:DTC PO336 - CRANKSHAFT POSITION SENSOR CIRCUIT RANGE/PER-
FORMANCE PROBLEM -
DTC DETECTING CONDITION:
TROUBLE SYMPTOM:
Immediately at fault recognition
Engine stalls.
Failure of engine to start
CAUTION:
After repair or replacement of faulty parts, conduct Clear Memory Mode and Inspection Mode .
WIRING DIAGRAM:
CRANKSHAFT
POSITION
SENSOR
I I I
EN097(
EN(D0HC TURBO)-I88
DIAGNOSTIC PROCEDURE WITH DIAGNOSTIC TROUBLE CODE (DTC)
ENGINE (DIAGNOSTICS)
Yes
Inspect DTC
PO335 using “List
of Diagnostic Trouble Code (DTC)”.
TURBO)-80, List
of Diagnostic Trouble Code (DTC).>
Go to step 3.
Replace the crankshaft sprocket.
Crankshaft Position Sensor.>
Repair installation
condition of timing
belt. ME(D0HC
TURBO)-48, Timing Belt Assembly.>
TURBO)-30,
Step
CHECK ANY OTHER DTC ON DISPLAY.
No Go to step 2.
Tighten crankshaft position sensor installation bolt
securely.
Go to step 4.
Replace the crankshaft position sensor. FU(D0HC
TURBO)-30,
Crankshaft Position Sensor.>
I CHECK CONDITION OF CRANKSHAFT PO-
SITION SENSOR.
Turn the ignition switch to OFF.
I CHECK CRANKSHAFT SPROCKET.
Remove the front belt cover.
I CHECK INSTALLATION CONDITION OF
TIMING BELT.
Turn the crankshaft using ST, and align alignment mark on crankshaft sprocket with alignment mark on cylinder block.
ST 499987500 CRANKSHAFT SOCKET
Check
Does the Subaru Select Monitor or OBD-ll general scan tool
indicate DTC P0335?
Is the crankshaft position sensor installation bolt tightened
securely?
Are crankshaft sprocket teeth
cracked or damaged?
Is the timing belt dislocated
from its proper position?
EN(D0HC TURBO)-1 89
DIAGNOSTIC PROCEDURE WITH DIAGNOSTIC TROUBLE CODE (DTC)
AP:DTC PO340 - CAMSHAFT POSITION SENSOR CIRCUIT MALFUNCTION -
DTC DETECTING CONDITION:
TROUBLE SYMPTOM:
Immediately at fault recognition
Engine stalls.
Failure of engine to start
CAUTION:
After repair or replacement of faulty parts, conduct Clear Memory Mode and Inspection Mode .
WIRING DIAGRAM:
CAMSHAFT
POSITION n SENSOR
tr F
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@ ECM U
EN097
EN(D0HC TURBO)-190
DIAGNOSTIC PROCEDURE WITH DIAGNOSTIC TROUBLE CODE (DTC)
ENGINE (DIAGNOSTICS)
Yes
Repair harness
and connector.
NOTE:
In this case, repair
the following:
* Open circuit in
harness between
camshaft position
sensor and ECM
connector
* Poor contact in
ECM connector
Poor contact in
coupling connector
Repair ground
Step
CHECK HARNESS BETWEEN CAMSHAFT
POSITION SENSOR AND ECM CONNEC-
TOR.
1)Turn the ignition switch to OFF.
2)Disconnect the connector from camshaft
position sensor.
3)Measure the resistance of harness between
camshaft position sensor connector and
engine ground.
Connector & terminal
(€15) No. 1 - Engine ground:
No Go to step 2.
Go to step 3. ! CHECK HARNESS BETWEEN CAMSHAFT
POSITION SENSOR AND ECM CONNEC-
TOR.
Measure the resistance of harness between
camshaft position sensor connector and
engine ground.
Connector & terminal
(E15) No. 1 - Engine ground:
I CHECK HARNESS BETWEEN CAMSHAFT
POSITION SENSOR AND ECM CONNEC-
TOR.
Measure the resistance of harness between
camshaft position sensor connector and
engine ground.
Connector & terminal
(E15) No. 2 - Engine ground:
1 CHECK CONDITION OF CAMSHAFT POSI-
TION SENSOR.
5 CHECK CAMSHAFT POSITION SENSOR.
1)Remove the camshaft position sensor.
2)Measure the resistance between connector
terminals of camshaft position sensor.
Terminals
NO. 1 - NO. 2:
Check
; the resistance more than
00 kR?
s the resistance less than 10
L?
s the resistance less than 5
2?
s the camshaft position sensor
nstallation bolt tightened
jecurely?
s the resistance between 1
md 4 kR?
Go to step 4.
Go to step 5.
Repair poor contact in camshaft
position sensor
connector.
Repair harness
and connector.
NOTE:
In this case, repai
the following:
Open circuit in
harness between
camshaft position
sensor and ECM
connector
Poor contact in
ECM connector
Poor contact in
coupling connect0
Tighten camshaft
position sensor
installation bolt
securely.
Replace the camshaft position sen.
sor. FU(D0HC
TURBO)-31, Cam
shaft Position Sen
sor.>
EN(D0HC TURBO)-191
a DIAGNOSTIC PROCEDURE WITH DIAGNOSTIC TROUBLE CODE (DTC)
AQ:DTC PO341 - CAMSHAFT POSITION SENSOR CIRCUIT RANGE/PERFOR-
MANCE PROBLEM -
DTC DETECTING CONDITION:
Immediately at fault recognition
TROUBLE SYMPTOM:
Engine stalls.
Failure of engine to start
CAUTION:
After repair or replacement of faulty parts, conduct Clear Memory Mode and Inspection Mode .
WIRING DIAGRAM:
h E
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CAMSHAFT
POSITION
SENSOR
@ ECM I
ENO97;
EN(D0HC TURBO)-I92
DIAGNOSTIC PROCEDURE WITH DIAGNOSTIC TROUBLE CODE (DTC)
ENGINE ID1 AGNOSTICS)
Yes
Inspect DTC
PO340 using “List
of Diagnostic Trouble Code (DTC)”.
TURBO)-80, List
of Diagnostic Trouble Code (DTC).>
Repair harness
and connector.
NOTE:
In this case, repair
the following:
Open circuit in
harness between
camshaft position
sensor and ECM
connector
Poor contact in
ECM connector
Poor contact in
coupling connector
Repair ground
short circuit in harness between
camshaft position
sensor and ECM
connector.
NOTE:
The harness between both connectors are
shielded. Repair
ground short circuit
in harness together with shield.
Go to step 5.
No Go to step 2.
Go to step 3.
Go to step 4.
Repair harness
Step
CHECK HARNESS BETWEEN CAMSHAFT
TOR.
1)Turn the ignition switch to OFF.
2)Disconnect the connector from camshaft
position sensor.
3)Measure the resistance of harness between
camshaft position sensor connector and
engine ground.
POSITION SENSOR AND ECM CONNEC-
Connector & terminal
(€15) No. 1 - Engine ground:
Check
I CHECK HARNESS BETWEEN CAMSHAFT
POSITION SENSOR AND ECM CONNEC-
TOR.
Measure the resistance of harness between
camshaft position sensor connector and
engine ground.
Connector & terminal
(€75) No, 1 - Engine ground:
CHECK ANY OTHER DTC ON DISPLAY. Does the Subaru Select Monitor or OBD-I1 general scan tool
indicate DTC P0340?
+Is the resistance less than 10
1 Is the resistance more than
100 kR?
I
I CHECK HARNESS BETWEEN CAMSHAFT
POSITION SENSOR AND ECM CONNEC-
Is the resistance less than 5
Q? and connector.
NOTE:
In this case, repai
the following:
Open circuit in
harness between
camshaft position
sensor and ECM
connector
Poor contact in
ECM connector
Poor contact in
coupling connect0
securely?
. -
installation bolt
securely.
EN(D0HC TURBO)-I93
i DIAGNOSTIC PROCEDURE WITH DIAGNOSTIC TROUBLE CODE (DTC)
ENGINE (DIAGNOSTICS)
Yes
Go to step 7.
Go to step 8.
Replace the camshaft sprocket.
ME(D0HC
TURBO)-57, Camshaft Sprocket.>
Repair installation
condition of timing
belt. ME(D0HC
TURBO)-48, Timing Belt Assembly.>
No Replace the camshaft position sensor. FU(D0HC
TURBO)-31, Camshaft Position Sensor.>
Tighten camshaft
position sensor
installation bolt
securely.
Go to step 9.
Replace the camshaft position sensor. FU(D0HC
TURBO)-31, Camshaft Position Sensor.>
TlON SENSOR.
Turn the ignition switch to OFF.
Step
CHECK CAMSHAFT POSITION SENSOR.
1)Remove the camshaft position sensor.
2)Measure the resistance between connector
terminals of camshaft position sensor.
Terminals
NO. 1 -NO. 2:
CHECK CONDITION OF CAMSHAFT POSI-
installation bolt tightened
securely?
Check
Is the resistance between 1
and 4 kR?
Is the camshaft position sensor
CHECK CAMSHAFT SPROCKET.
Remove the front belt cover. ME(S0HC)-46, Belt Cover.>
CHECK INSTALLATION CONDITION OF
TIMING BELT.
Turn the camshaft using ST, and align alignment mark on camshaft sprocket with alignment mark on timing belt cover LH.
ST 4992071 00 CAMSHAFT SPROCKET
WRENCH
Are camshaft sprocket teeth
cracked or damaged?
Is the timing belt dislocated
from its proper position?
EN(D0HC TURBO)-I 94
DIAGNOSTIC PROCEDURE WITH DIAGNOSTIC TROUBLE CODE (DTC)
ENGINE (DIAGNOSTICS)
EN(D0HC TURBO)-I95
DIAGNOSTIC PROCEDURE WITH DIAGNOSTIC TROUBLE CODE (DTC)
ENGINE (DIAGNOSTICS)
AR:DTC PO420 - CATALYST SYSTEM EFFICIENCY BELOW THRESHOLD -
DTC DETECTING CONDITION:
TROUBLE SYMPTOM:
Two consecutive driving cycles with fault
Engine stalls.
Idle mixture is out of specifications.
CAUTION:
After repair or replacement of faulty parts, conduct Clear Memory Mode and Inspection Mode .
WIRING DIAGRAM:
T
i 8: 0 8135 C :o 8136 D: 0 8137 ECM
I
43
F
1 I
.
EN1151
EN(D0HC TURBO)-I96
DIAGNOSTIC PROCEDURE WITH DIAGNOSTIC TROUBLE CODE (DTC)
ENGINE (DIAGNOSTICS)
Replace the front
catalytic conStep
1 CHECK ANY OTHER DTC ON DISPLAY.
2 CHECK EXHAUST SYSTEM.
Check for gas leaks or air suction caused by
loose or dislocated nuts and bolts, and open
hole at exhaust pipes.
NOTE:
Check the following positions.
*Between cylinder head and front exhaust pipe
*Between front exhaust pipe and front catalytic
converter
*Between front catalytic converter and rear catalytic converter
Separate rear catalytic converter from rear
3 CHECK REAR CATALYTIC CONVERTER.
Contact with SOA
(distributor) ser4 CHECK FRONT CATALYTIC CONVERTER.
Remove the front catalytic converter.
verter. EC(D0HC
TURBO)-3, Front
Catalytic Conve rter. z
Check
)oes the Subaru Select Monii r or OBD-ll general scan tool
idicate DTC P0031, P0032,
'0131, P0132, P0133, P1130,
'1 131, P1134, P1139, P0037,
'0038, PO1 36 and PO1 39?
vice.
NOTE:
Inspection by DTL
is required, be
cause probabl,
cause is deteriora
tion of multipl'
parts.
s there a fault in exhaust sysem?
s there damage at rear face of
ear catalyst?
s there damage at rear face or
ront face of front catalyst?
Yes
nspect the relerant DTC using
List of Diagnostic
rrouble Code
DTC)". EN(D0HC
rURBO)-80, List
I f Diagnostic Trou)le Code (DTC).>
\IOTE:
n this case, it is
lot necessary to
nspect DTC
'0420.
3epair or replace
he exhaust sysem. IX(D0HC
rURBO)-2, Gen?ral Description.>
3eplace the front
:atalytic converter
TURBO)-3, Front
Satalytic Conterter.> and rear
:atalytic converter
TURBO)-4, Rear
Catalytic Conwerter.>
No 20 to step 2.
;o to step 3.
;o to step 4.
EN(D0HC TURBO)-197
DIAGNOSTIC PROCEDURE WITH DIAGNOSTIC TROUBLE CODE (DTC)
ENGINE (DIAGNOSTICS)
a EN(D0HC TURBO)-I98
ls DIAGNOSTIC PROCEDURE WITH DIAGNOSTIC TROUBLE CODE (DTC)
ENGINE (DIAGNOSTICS)
AS:DTC PO442 - EVAPORATIVE EMISSION CONTROL SYSTEM MALFUNC-
TION -
DTC DETECTING CONDITION:
TROUBLE SYMPTOM:
Two consecutive driving cycles with fault
Gasoline smell
There is a hole of more than 1 .O mm (0.04 in) dia. in evaporation system or fuel tank.
CAUTION:
After repair or replacement of faulty parts, conduct Clear Memory Mode OPERATION, Clear Memory Mode.> and Inspection Mode .
EN(D0HC TURBO)-I 99
DIAGNOSTIC PROCEDURE WITH DIAGNOSTIC TROUBLE CODE (DTC)
I
ENGINE (DIAGNOSTICS)
WIRING DIAGRAM:
- - - - -
L n
A E134 B B137 ENGINECONTROLMODULE 00
m 6 7 8 9 10 11 12
EN1152
EN(D0HC TURBO)-200
m DIAGNOSTIC PROCEDURE WITH DIAGNOSTIC TROUBLE CODE (DTC)
ENGINE (DIAGNOSTICS)
Step
CHECK ANY OTHER DTC ON DISPLAY.
CHECK FUEL FILLER CAP.
1)Turn the ignition switch to OFF.
2)Check the fuel filler cap.
NOTE:
The DTC code is stored in memory if fuel filler
cap is or was loose or if the cap chain was
caught while tightening.
CHECK FUEL FILLER PIPE PACKING.
CHECK DRAIN VALVE.
1)Connect the test mode connector.
2)Turn the ignition switch to ON.
3)Operate the drain valve.
NOTE:
Drain valve operation can also be executed using Subaru Select Monitor. For the procedure.
refer to “Compulsory Valve Operation Check
Mode”.
CHECK PURGE CONTROL SOLENOID
VALVE.
Operate the purge control solenoid valve.
NOTE:
Purge control solenoid valve operation can alsc
be executed using Subaru Select Monitor. Foi
the procedure, refer to “Compulsory Valve Op.
eration Check Mode”. Mode.>
CHECK PRESSURE CONTROL SOLENOID
VALVE.
Operate the pressure control solenoid valve.
NOTE:
Pressure control solenoid valve operation car
also be executed using Subaru Select Monitor
For the procedure, refer to “Compulsory Valve
Operation Check Mode”. TURBO)-50, Compulsory Valve Operatior
Check Mode.>
TROL SYSTEM LINE.
Turn the ignition switch to OFF.
CHECK EVAPORATIVE EMISSION CON-
Check
IS there any other DTC on dis,lay?
Is the fuel filler cap tightened
securely?
Is there any damage to the
seal between fuel filler cap and
fuel filler pipe?
Does the drain valve produce
operating sound?
Does the purge control solenoid valve produce operating
sound?
Does the pressure control
solenoid valve produce operating sound?
IS there a hole of more than 1 .O
mm (0.04 in) dia. on fuel line?
Yes
nspect the rele/ant DTC using
‘List of Diagnostic
rrouble Code
DTC)”. IN(D0HC
rURBO)-80, List
i f Diagnostic Trou.
ile Code (DTC).>
30 to step 3.
3epair or replace
he fuel filler cap
md fuel filler pipe.
:Ref. to FU(D0HC
TURBO)-55, Fuel
-iller Pipe.>
30 to step 5.
-.
So to step 6.
Go to step 7.
Repair or replace
the fuel line. to FU(D0HC
TURBO)-68, Fuel
Delivery, Return
and Evaporation
Lines.>
No 30 to step 2.
Tighten fuel filler
cap securely.
Go to step 4.
Replace the drain
valve. EC(D0HC
TURBO)-17, Drair
Valve.>
Replace the purge
control solenoid
valve. EC(D0HC
TURBO)-7, Purge
Control Solenoid
Valve.>
Replace the pressure control solenoid valve. to EC(D0HC
TURBO)-I 2, Pres
sure Control Solenoid Valve.>
Go to step 8.
EN (DOH C TU R BO)-201
DIAGNOSTIC PROCEDURE WITH DIAGNOSTIC TROUBLE CODE (DTC)
ENGINE (DIAGNOSTICS)
Check
Is the canister damaged or is
there a hole of more than 1 .O
mm (0.04 in) dia. in it?
Is the fuel tank damaged or is
there a hole of more than 1 .O
mm (0.04 in) dia. in it?
Are there holes of more than
1 .O mm (0.04 in) dia., cracks,
clogging or disconnections of
hoses or pipes in evaporative
emission control system?
Step
8 CHECK CANISTER.
Yes
Repair or replace
the canister. to EC(D0HC
TURBO)B, Canister.>
Repair or replace
the fuel tank. to FU(D0HC
TURBO)-52, Fuel
Tank.>
Repair or replace
the hoses or pipes.
9 CHECK FUEL TANK.
Remove the fuel tank. TURBO)-52, Fuel Tank.>
10 CHECK ANY OTHER MECHANICAL TROU-
BLE IN EVAPORATIVE EMISSION CON-
TROL SYSTEM.
No Go to step 9.
Go to step 10.
Contact with SOA
(distributor) service.
NOTE:
Inspection by DTN
is required, be.
cause probable
cause is deterioration of multiple
parts.
EN(D0HC TURBO)-202
DIAGNOSTIC PROCEDURE WITH DIAGNOSTIC TROUBLE CODE (DTC)
ENGINE (DIAGNOSTICS)
EN(D0HC TURBO)-203
DIAGNOSTIC PROCEDURE WITH DIAGNOSTIC TROUBLE CODE (DTC)
ENGINE (DIAGNOSTICS)
AT:DTC PO444 - EVAPORATIVE EMISSION CONTROL SYSTEM PURGE CON-
TROL VALVE CIRCUIT LOW INPUT -
DTC DETECTING CONDITION:
Two consecutive driving cycles with fault
TROUBLE SYMPTOM:
Erroneous idling
CAUTION:
After repair or replacement of faulty parts, conduct Clear Memory Mode and Inspection Mode .
WIRING DIAGRAM:
41N RELAY
BATTERY
SBF-5 3 c
U
PURGE CONTROL
SOLENOID VALVE
"
5 6
EN1 153
EN( DOHC TU RB0)-204
DIAGNOSTIC PROCEDURE WITH DIAGNOSTIC TROUBLE CODE (DTC)
E NG I N E ( D I AG NOSTl CS)
Step
CHECK OUTPUT SIGNAL FROM ECM.
1)Turn the ignition switch to ON.
2)Measure the voltage between ECM and
chassis ground.
Connector & terminal
(B 137) No. 16 (+) - Chassis ground (-):
! CHECK HARNESS BETWEEN PURGE CON.
TROL SOLENOID VALVE AND ECM CON-
NECTOR.
1)Turn the ignition switch to OFF.
2)Disconnect the connectors from purge control solenoid valve and ECM.
3)Measure the resistance of harness between
purge control solenoid valve connector and
engine ground.
Connector & terminal
(E4) No. 2 - Engine ground:
1 CHECK HARNESS BETWEEN PURGE CON,
TROL SOLENOID VALVE AND ECM CON-
NECTOR.
Measure the resistance of harness between
ECM and purge control solenoid valve of harness connector.
Connector & terminal
(6137) NO. 16 - (E4) NO. 2:
I CHECK PURGE CONTROL SOLENOID
VALVE.
1)Remove the purge control solenoid valve.
2)Measure the resistance between purge control solenoid valve terminals.
Terminals
NO. 1 -NO. 2:
> CHECK POWER SUPPLY TO PURGE CON-
TROL SOLENOID VALVE.
1)Turn the ignition switch to ON.
2)Measure the voltage between purge control
solenoid valve and engine ground.
Connector & terminal
(E4) No. 1 (+) - Engine ground (-):
Check
5 the voltage more than 10 V?
s the resistance less than 10
2?
s the resistance less than 1
2?
s the resistance between 10
2nd 100 Q?
s the voltage more than 10 V?
Yes
Even if MIL lights
up, the circuit has
returned to a normal condition at
this time. Contact
with SOA (distributor) service.
NOTE:
Inspection by DTW
is required, be.
cause probable
cause is deteriora,
tion of multiple
parts.
Repair ground
short circuit in harness between
ECM and purge
control solenoid
valve connector.
Go to step 4.
20 to step 5.
;o to step 6.
No So to step 2.
20 to step 3.
3epair open circuit
n harness
letween ECM and
)urge control soleioid valve connecor.
rlOTE:
n this case, repair
he following:
Open circuit in
iarness between
X M and purge
:ontrol solenoid
ialve connector
Poor contact in
:oupling connectoi
3eplace the purge
:ontrol solenoid
ialve. IC(D0HC
TURBO)--/, Purge
2ontrol Solenoid
Jake.>
3epair open circuit
n harness
letween main
'elay and purge
:ontrol solenoid
ialve connector.
EN(D0HC TURBO)-205
DIAGNOSTIC PROCEDURE WITH DIAGNOSTIC TROUBLE CODE (DTC) I
ENGINE (DIAGNOSTICS)
Step
6 CHECK POOR CONTACT.
Check poor contact in purge control solenoid
Check
control solenoid valve connector?
Yes
Repair poor contact in purge control solenoid valve
connector.
(distributor) service.
NOTE:
Inspection by DTN
is required, be.
cause probablc
cause is deteriora
tion of multiple
Darts.
EN(D0HC TURBO)-206
m DIAGNOSTIC PROCEDURE WITH DIAGNOSTIC TROUBLE CODE (DTC)
ENGINE (DIAGNOSTICS)
EN(D0HC TURBO)-207
DIAGNOSTIC PROCEDURE WITH DIAGNOSTIC TROUBLE CODE (DTC)
ENGINE (DIAGNOSTICSI
AU:DTC PO445 - EVAPORATIVE EMISSION CONTROL SYSTEM PURGE CON-
TROL VALVE CIRCUIT HIGH INPUT -
DTC DETECTING CONDITION:
Two consecutive driving cycles with fault
TROUBLE SYMPTOM:
Erroneous idling
CAUTION:
After repair or replacement of faulty parts, conduct Clear Memory Mode and Inspection Mode .
WIRING DIAGRAM:
MAIN RELAY
BATTERY
SBF-5 3 c
@ ECM n
PURGE CONTROL
SOLENOID VALVE
" 5 6
EN1 153
EN(D0HC TURBO)-208
DIAGNOSTIC PROCEDURE WITH DIAGNOSTIC TROUBLE CODE (DTC)
ENGINE (DIAGNOSTICS)
s there poor contact in ECM
:onnector?
s the voltage more than 10 V?
s the resistance less than 1
n? s there poor contact in ECM
:onnector?
Step
CHECK OUTPUT SIGNAL FROM ECM.
1)Turn the ignition switch to OFF.
2)Connect the test mode connector at the
lower portion of instrument panel (on the
driver’s side), to the side of the center console
box.
3)Turn the ignition switch to ON.
4)While operating the purge control solenoid
valve, measure voltage between ECM and
chassis ground.
NOTE:
Purge control solenoid valve operation can be
executed using Subaru Select Monitor. For procedure, refer to “Compulsory Valve Operation
Check Mode”. Compulsory Valve Operation Check Mode.>
Connector & terminal
(6137) No. 16 (+) - Chassis ground (-):
CHECK OUTPUT SIGNAL FROM ECM.
1)Turn the ignition switch to ON.
2)Measure the voltage between ECM and
chassis ground.
Connector & terminal
CHECK POOR CONTACT.
Check poor contact in ECM connector.
(6137) No. 16 (+) - Chassis ground (-):
Repair poor contact in ECM connector.
Repair battery
short circuit in har,
ness between
ECM and purge
control solenoid
valve connector.
After repair,
replace the ECM.
Engine Control
Module.>
Replace the purge
control solenoid
valve EC(D0HC
TURBO)-7, Purge
Control Solenoid
Valve.> and ECM
Engine Control
Module.>
Repair poor contact in ECM connector.
TURBO)-47,
TURBO)-47,
CHECK HARNESS BETWEEN PURGE CON-
TROL SOLENOID VALVE AND ECM CON-
N ECTO R.
1)Turn the ignition switch to OFF.
2)Disconnect the connector from purge control
solenoid valve.
3)Turn the ignition switch to ON.
4)Measure the voltage between ECM and
chassis ground.
Connector & terminal
(6137) No. 16 (+) - Chassis ground (-):
CHECK PURGE CONTROL SOLENOID
VALVE.
1)Turn the ignition switch to OFF.
2)Measure the resistance between purge control solenoid valve terminals.
Terminals
NO. 1 -NO. 2:
CHECK POOR CONTACT.
Check poor contact in ECM connector.
Check
)etween 0 and 10 V?
s -----I- the voltage more than 10 V? Go to step 4.
No Even if MIL light
up, the circuit has
returned to a normal condition at
this time. In this
case, repair poor
:ontact in ECM
sonnector.
Go to step 3.
Replace the ECM.
Engine Control
Module.>
Go to step 5.
TURBO)-47,
Go to step 6.
Replace the ECM.
Engine Control
Module.>
TURBO)-47,
EN(D0HC TURBO)-209
DIAGNOSTIC PROCEDURE WITH DIAGNOSTIC TROUBLE CODE (DTC)
ENGINE (DIAGNOSTICS)
Yes
Go to step 2.
AV:DTC PO447 - EVAPORATIVE EMISSION CONTROL SYSTEM VENT CON-
TROL LOW INPUT -
Immediately at fault recognition
DTC DETECTING CONDITION:
CAUTION:
After repair or replacement of faulty parts, conduct Clear Memory Mode and Inspection Mode .
WIRING DIAGRAM:
No Go to step 3.
41N RELAY BATTERY
SBF-5 3 c
n '3 qA:@ B:@ ECM I I
EN1154
Step
1 CHECK OUTPUT SIGNAL FROM ECM.
1)Turn the ignition switch to ON.
2)Measure the voltage between ECM and
chassis ground.
Connector & terminal
(6137) No. 11 (+) - Chassis ground (-):
Check
Is the voltage more than 10 V?
EN(D0HC TURBO)-21 0
I m
DIAGNOSTIC PROCEDURE WITH DIAGNOSTIC TROUBLE CODE (DTC)
ENGINE (DIAGNOSTICS)
Step
CHECK POOR CONTACT.
Check poor contact in ECM connector.
CHECK HARNESS BETWEEN DRAIN
VALVE AND ECM CONNECTOR.
1)Turn the ignition switch to OFF.
2)Disconnect the connectors from drain valve
and ECM.
3)Measure the resistance of harness between
drain valve connector and chassis ground.
Connector & terminal
(R69) No. 2 - Chassis ground:
CHECK HARNESS BETWEEN DRAIN
VALVE AND ECM CONNECTOR.
Measure the resistance of harness between
ECM and drain valve connector.
Connector & terminal
(8137) NO. 11 - (R69) NO. 2:
CHECK DRAIN VALVE.
Measure the resistance between drain valve
terminals.
Terminals
NO. 1 - NO. 2:
CHECK POWER SUPPLY TO DRAIN VALVE
1)Turn the ignition switch to ON.
2)Measure the voltage between drain valve
and chassis ground.
Connector & terminal
(R69) No. 1 (+) - Chassis ground (-):
Check
there poor contact in ECM
mnector?
; the resistance less than 10
!?
;the voltage less than 1 R?
5 the resistance between 10
.nd 100 a?
5 the voltage more than 10 V'
Yes
lepair poor conict in ECM conector.
lepair ground
hort circuit in haress between
iCM and drain
alve connector.
i o to step 5.
;o to step 6.
;o to step 7.
No Even if MIL lights
up, the circuit has
returned to a normal condition at
this time. (However, the possibilit)
of poor contact stil
remains.)
NOTE:
In this case, repai
the following:
Poor contact in
drain valve connector
Poor contact in
ECM connector
Poor contact in
coupling connectors
Go to step 4.
Repair harness
and connector.
NOTE:
In this case, repa
the following:
Open circuit in
harness between
ECM and drain
valve connector
Poor contact in
coupling connectors
Replace the drain
valve. EC(D0HC
TURBO)-I 7, Draii
Valve.>
Repair harness
and connector.
NOTE:
In this case, repa
the following:
Open circuit in
harness between
main relay and
drain valve
Poor contact in
coupling connecEN(D0HC TURBO)-21 1
DIAGNOSTIC PROCEDURE WITH DIAGNOSTIC TROUBLE CODE (DTC)
ENGINE (DIAGNOSTICS)
Step
7 CHECK POOR CONTACT.
Check poor contact in drain valve connector.
Check
Is there poor contact in drain
valve connector?
Yes
Repair poor contact in drain valve
connector.
EN(D0HC TURBO)-21 2
No Contact with SOA
(distributor) service.
NOTE:
Inspection by DTM
is required, because probable
cause is deterioration of multiple
Darts.
DIAGNOSTIC PROCEDURE WITH DIAGNOSTIC TROUBLE CODE (DTC)
ENGINE IDlAGNOSTlCSl
EN(D0HC TURBO)-21 3
I DIAGNOSTIC PROCEDURE WITH DIAGNOSTIC TROUBLE CODE (DTC)
ENGINE (DIAGNOSTICS)
AW:DTC PO448 - EVAPORATIVE EMISSION CONTROL SYSTEM VENT CON-
DTC DETECTING CONDITION:
CAUTION:
After repair or replacement of faulty parts, conduct Clear Memory Mode and Inspection Mode .
WIRING DIAGRAM:
TROL HIGH INPUT -
Immediately at fault recognition
I
4IN RELAY
SBF-5
A:@ B:@ ECM
- I I
BATTERY
€3
CANISTER 1
EN1154
EN(D0HC TURBO)-21 4
DIAGNOSTIC PROCEDURE WITH DIAGNOSTIC TROUBLE CODE (DTC)
ENGINE (DIAGNOSTICS)
Yes
Go to step 2.
Step
I CHECK OUTPUT SIGNAL FROM ECM.
1)Turn the ignition switch to OFF.
2)Connect the test mode connector at the
lower portion of instrument panel (on the
driver’s side), to the side of the center console
box.
3)Turn the ignition switch to ON.
4)While operating the drain valve, measure
voltage between ECM and chassis ground.
NOTE:
Drain valve operation can be excecuted using
Subaru Select Monitor. For procedure, refer to
“Compulsory Valve Operation Check Mode”.
Valve Operation Check Mode.>
Connector & terminal
(8137) No. 11 (+) - Chassis ground (-):
! CHECK OUTPUT SIGNAL FROM ECM.
1)Turn the ignition switch to ON.
2)Measure the voltage between ECM and
chassis ground.
Connector & terminal
(8137) No. 11 (+) - Chassis ground (-):
j CHECK POOR CONTACT.
Check poor contact in ECM connector.
No Even if MIL lights
up, the circuit has
returned to a normal condition at
this time. In this
case, repair poor
contact in ECM
connector.
I CHECK HARNESS BETWEEN DRAIN
VALVE AND ECM CONNECTOR.
1)Turn the ignition switch to OFF.
2)Disconnect the connector from drain valve.
3)Turn the ignition switch to ON.
4)Measure the voltage between ECM and
chassis ground.
Connector & terminal
(B137) No. 11 (+) - Chassis ground (-):
s there poor contact in ECM
:onnector?
s the voltage more than 10 V?
i CHECK DRAIN VALVE.
1)Turn the ignition switch to OFF.
2)Measure the resistance between drain valve
terminals.
Terminals
NO. 1 - NO. 2:
Repair poor contact in ECM conReplace the ECM.
Engine Control
Module.>
Go to step 5.
nector. TURBO)-47,
Repair battery
i CHECK POOR CONTACT.
Check poor contact in ECM connector.
s the resistance less than 1
2?
s there poor contact in ECM
:onnector?
Check
Ioes the voltage change
letween 0 and 10 V?
short circuit in harness between
ECM and drain
valve connector.
After repair,
replace the ECM.
Engine Control
Module.>
Replace the drain Go to step 6.
valve EC(D0HC
TURBO)-I 7, Drain
Valve.> and ECM
Engine Control
Module.>
Repair poor contact in ECM conTURBO)-47,
TURBO)-47,
Replace the ECM.
Engine Control
Module.>
nector. TURBO)-47,
s the voltage more than 10 V? Go to step 4. Go to step 3.
EN(D0HC TURBO)-21 5
DIAGNOSTIC PROCEDURE WITH DIAGNOSTIC TROUBLE CODE (DTC)
I
EN G IN E (D I AG N OSTl CS)
AX:DTC PO451 - EVAPORATIVE EMISSION CONTROL SYSTEM PRESSURE
SENSOR RANGE/PERFORMANCE PROBLEM -
DTC DETECTING CONDITION:
CAUTION:
After repair or replacement of faulty parts, conduct Clear Memory Mode and Inspection Mode .
WIRING DIAGRAM:
Two consecutive driving cycles with fault
JEL TANK
3ESSURE
;ENSOR 1
# I [,I- @
=-I
EN(D0HC TURBO)-216
m DIAGNOSTIC PROCEDURE WITH DIAGNOSTIC TROUBLE CODE (DTC)
ENGINE (DIAGNOSTICS)
Step
1 CHECK ANY OTHER DTC ON DISPLAY.
Check
Is there any DTC on display?
Yes
Inspect the relevant DTC using
“List of Diagnostic
Trouble Code
(DTC)”. EN(D0HC
TURBO)-80, List
of Diagnostic Trouble Code (DTC).>
Go to step 3.
Repair or replace
the hoses and
pipes.
No Go to step 2.
Tighten fuel filler
cap securely.
Replace the fuel
tank pressure sensor. EC(D0HC
TURBO)-I 1 , Fuel
Tank Pressure
Sensor.>
EN(D0HC TURBO)-217
2 CHECK FUEL FILLER CAP.
1)Turn the ignition switch to OFF.
2)Open the fuel flap.
3 CHECK PRESSURENACUUM LINE.
NOTE:
Check the following items.
*Disconnection, leakage and clogging of the
vacuum hoses and pipes between fuel tank
pressure sensor and fuel tank
*Disconnection, leakage and clogging of air
ventilation hoses and pipes between fuel filler
DiDe and fuel tank
Is the fuel filler cap tightened
securely?
Is there a fault in pressurehacuum line?
DIAGNOSTIC PROCEDURE WITH DIAGNOSTIC TROUBLE CODE (DTC)
ENGINE (DIAGNOSTICS)
AY:DTC PO452 - EVAPORATIVE EMISSION CONTROL SYSTEM PRESSURE
SENSOR LOW INPUT -
DTC DETECTING CONDITION:
CAUTION:
After repair or replacement of faulty parts, conduct Clear Memory Mode and Inspection Mode .
WIRING DIAGRAM:
Two consecutive driving cycles with fault
IEL TAN1
IESSURI
,ENSOR
EN1 155
EN(D0HC TURBO)-21 8
EiN
DIAGNOSTIC PROCEDURE WITH DIAGNOSTIC TROUBLE CODE (DTC)
ENGINE (DIAGNOSTICS)
Check Step
CHECK CURRENT DATA.
1)Turn the ignition switch to OFF.
2)Remove the fuel filler cap.
3)lnstall the fuel filler cap.
4)Turn the ignition switch to ON.
5)Read the data of fuel tank pressure sensor
signal using Subaru Select Monitor or the
OBD-ll general scan tool.
NOTE:
Yes
*Subaru Select Monitor
Fordetailed operation procedure, refer to the
“READ CURRENT DATA FOR ENGINE”.
to EN(D0HC TURBO)-38, Subaru Select Mon.
itor.>
*OBD-II general scan tool
For detailed operation procedures, refer to the
OBD-II General Scan Tool Instruction Manual.
CHECK POWER SUPPLY TO FUEL TANK
PRESSURE SENSOR.
Measure the voltage between ECM connector
and chassis ground.
Connector & terminal
(6135) No. 9 (+) - Chassis ground (-):
CHECK POWER SUPPLY TO FUEL TANK
PRESSURE SENSOR.
Measure the voltage between ECM connector
and chassis ground.
Connector i? terminal
(B 135) No. 9 (+) - Chassis ground (-):
s the value less than -2.8 kPa
-21 .O mmHg, -0.827 inHg)?
CHECK INPUT SIGNAL FOR ECM.
Measure the voltage between ECM and chassis ground.
Connector & terminal
(6135) No. 15 (+) - Chassis ground (-):
CHECK INPUT SIGNAL FOR ECM. (USING
SUBARU SELECT MONITOR.)
Read the data of fuel tank pressure sensor sig.
nal using Subaru Select Monitor.
NOTE:
*Subaru Select Monitor
For detailed operation procedure, refer to the
“READ CURRENT DATA FOR ENGINE”.
to EN(D0HC TURBO)-38, Subaru Select Mon.
itor.>
IGo to step 2.
s the voltage more than 4.5 V? Go to step 4.
I
loes the voltage change more
han 4.5 V by shaking harness
ind connector of ECM while
nonitoring the value with voltige meter?
s the voltage less than 0.2 V?
loes the value change more
han -2.8 kPa (-21 .O mmHg, 1.827 inHg) by shaking harless and connector of ECM
while monitoring the value with
Subaru Select Monitor?
Repair poor contact in ECM connector.
Go to step 6.
Repair poor contact in ECM connector.
~~
No Even if MIL lights
JP, the circuit has
,eturned to a nornal condition at
his time.
30 to step 3.
;ontact with SOA
distributor) serlice.
\JOTE:
nspection by DTL
s required, be
:ause probablc
:ause is deteriora
ion of multipli
)arts.
30 to step 5.
30 to step 6.
EN(D0HC TURBO)-219
DIAGNOSTIC PROCEDURE WITH DIAGNOSTIC TROUBLE CODE (DTC)
Step
CHECK HARNESS BETWEEN ECM AND
COUPLING CONNECTOR IN REAR WIRING
HARNESS.
1)Turn the ignition switch to OFF.
2)Remove the rear seat cushion (Sedan) or
move rear seat cushion (Wagon).
3)Separate rear wiring harness and fuel tank
cord.
4)Turn the ignition switch to ON.
5)Measure the voltage between rear wiring
harness connector and chassis ground.
Connector & terminal
(R15) No. 9 (+) - Chassis ground (-):
CHECK HARNESS BETWEEN ECM AND
COUPLING CONNECTOR IN REAR WIRING
HARNESS.
1)Turn the ignition switch to OFF.
2)Disconnect the connector from ECM.
3)Measure the resistance of harness between
ECM and rear wiring harness connector.
Connector & terminal
(6135) NO. 19 - (R15) NO. 11:
CHECK HARNESS BETWEEN ECM AND
COUPLING CONNECTOR IN REAR WIRING
HARNESS.
Measure the resistance of harness between
rear wiring harness connector and chassis
ground.
Connector & terminal
(R15) No. 11 - Chassis ground:
1)Disconnect the connector from fuel tank
pressure sensor.
2)Measure the resistance of fuel tank cord.
3 CHECK FUEL TANK CORD.
Connector & terminal
(R57) NO. 9 - (R47) NO. 3:
I O CHECK FUEL TANK CORD.
Measure the resistance of fuel tank cord.
Connector & terminal
(R57) NO. 11 - (R47) NO. 1:
I1 CHECK FUEL TANK CORD.
Measure the resistance of harness between
fuel tank pressure sensor connector and chas
sis ground.
Connector & terminal
(R47) No. 2 - Chassis ground:
12 CHECK POOR CONTACT.
Check poor contact in fuel tank pressure sensor connector.
Check
j the voltage more than 4.5 V?
s the resistance less than 1
2?
s the resistance more than
500 kR?
s the resistance less than 1
2?
s the resistance less than 1
3?
s the resistance more than
500 kR?
s there poor contact in fuel
ank pressure sensor connecor?
Yes
;o to step 7.
20 to step 0.
30 to step 9.
30 to step 10.
So to step 11.
Go to step 12.
Repair poor contact in fuel tank
pressure sensor
connector.
No 3epair harness
and connector.
UOTE:
n this case, repair
he following:
1 Open circuit in
iarness between
X M and rear wirng harness conlector
1 Poor contact in
:oupling connector
3epair harness
3nd connector.
VOTE:
In this case, repair
:he following:
1 Open circuit in
iarness between
ECM and rear wirng harness conlector
1 Poor contact in
2oupling connector
Poor contact in
loint connector
Repair ground
short circuit in harness between
ECM and rear wiring harness connector.
Repair open circuit
in fuel tank cord.
Repair open circuit
in fuel tank cord.
Repair ground
short circuit in fuel
tank cord.
Replace the fuel
tank pressure sen.
sor. EC(D0HC
TURBO)-1 1, Fuel
Tank Pressure
Sensor. >
EN(D0HC TURBO)-220
DIAGNOSTIC PROCEDURE WITH DIAGNOSTIC TROUBLE CODE (DTC)
ENGINE (DIAGNOSTICS)
EN(D0HC TURBO)-221
DIAGNOSTIC PROCEDURE WITH DIAGNOSTIC TROUBLE CODE (DTC)
ENGINE (DIAGNOSTICS)
AZ:DTC PO453 - EVAPORATIVE EMISSION CONTROL SYSTEM PRESSURE
SENSOR HIGH INPUT -
DTC DETECTING CONDITION:
CAUTION:
After repair or replacement of faulty parts, conduct Clear Memory Mode and Inspection Mode .
WIRING DIAGRAM:
Two consecutive driving cycles with fault
EN1155
EN(D0HC TURBO)-222
DIAGNOSTIC PROCEDURE WITH DIAGNOSTIC TROUBLE CODE (DTC)
ENGINE (DIAGNOSTICS)
Step
CHECK CURRENT DATA.
1)Turn the ignition switch to OFF.
2)Remove the fuel filler cap.
3)lnstall the fuel filler cap.
4)Turn the ignition switch to ON.
5)Read the data of fuel tank pressure sensor
signal using Subaru Select Monitor or OBD-ll
general scan tool.
NOTE:
4ubaru Select Monitor
For detailed operation procedure, refer to the
“READ CURRENT DATA FOR ENGINE”.
to EN(D0HC TURBO)-38, Subaru Select Mon.
itor.>
*OBD-ll general scan tool
For detailed operation procedures, refer to the
OBD-ll General Scan Tool Instruction Manual.
CHECK POWER SUPPLY TO FUEL TANK
PRESSURE SENSOR.
Measure the voltage between ECM connector
and chassis ground.
Connector & terminal
(8135) No. 9 (+) - Chassis ground (-):
CHECK POWER SUPPLY TO FUEL TANK
PRESSURE SENSOR.
Measure the voltage between ECM connector
and chassis ground.
Connector & terminal
(8135) No. 9 (+) - Chassis ground (-):
CHECK INPUT SIGNAL FOR ECM.
Measure the voltage between ECM and chassis ground.
Connector & terminal
(8135) No. 15 (+) - Chassis ground (-):
CHECK INPUT SIGNAL FOR ECM. (USING
SUBARU SELECT MONITOR.)
Read the data of fuel tank pressure sensor sig
nal using Subaru Select Monitor.
NOTE:
Gubaru Select Monitor
For detailed operation procedure, refer to the
“READ CURRENT DATA FOR ENGINE”.
to EN(D0HC TURBO)-38, Subaru Select Mon
itor.>
CHECK HARNESS BETWEEN ECM AND
COUPLING CONNECTOR IN REAR WIRING
HARNESS.
1)Turn the ignition switch to OFF.
2)Remove the rear seat cushion (Sedan) or
move rear seat cushion (Wagon).
3)Separate rear wiring harness and fuel tank
cord .
4)Turn the ignition switch to ON.
5)Measure the voltage between rear wiring
harness connector and chassis ground.
Connector & terminal
(R15) No. 9 (+) - Chassis ground (-):
~
Check
s the value more than 2.8 kPa
21 .O mmHg, 0.827 inHg)?
s the voltage more than 4.5 V?
Does the voltage change more
;han 4.5 V by shaking harness
and connector of ECM while
nonitoring the value with volt3ge meter?
Is the voltage less than 0.2 V?
Does the value change more
than -2.8 kPa (-21 .O mmHg,
-0.827 inHg) by shaking harness and connector of ECM
while monitoring the value with
Subaru Select Monitor?
Is the voltage more than 4.5 VS
Yes
20 to step 12.
30 to step 4.
3epair poor conact in ECM conlector.
20 to step 6.
3epair poor con:act in ECM conlector.
30 to step 7.
No 30 to step 2.
30 to step 3.
Replace the ECM.
Engine Control
Module.>
TURBO)-47,
So to step 5.
So to step 6.
Repair harness
and connector.
NOTE:
In this case, repai
the following:
a Open circuit in
harness between
ECM and rear wir.
ing harness connector
Poor contact in
coupling connectc
EN(D0HC TURBO)-223
DIAGNOSTIC PROCEDURE WITH DIAGNOSTIC TROUBLE CODE (DTC)
ENGINE (DIAGNOSTICS)
Step
CHECK HARNESS BETWEEN ECM AND
COUPLING CONNECTOR IN REAR WIRING
HARNESS.
1)Turn the ignition switch to OFF.
2)Disconnect the connector from ECM.
3)Measure the resistance of harness between
ECM and rear wiring harness connector.
Connector & terminal
(6 135) NO. 15 - (R 15) NO. 10:
CHECK HARNESS BETWEEN ECM AND
COUPLING CONNECTOR IN REAR WIRING
HARNESS.
Measure the resistance of harness between
rear wiring harness connector and chassis
ground.
Connector & terminal
(8135) NO. 9 - (R15) NO. 9:
I CHECK FUEL TANK CORD.
1)Disconnect the connector from fuel tank
pressure sensor.
2)Measure the resistance of fuel tank cord.
Connector & terminal
(R57) NO. 11 - (R47) NO. 2:
0 CHECK FUEL TANK CORD.
Measure the resistance of fuel tank cord.
Connector & terminal
(R57) NO. 10 - (R47) NO. 1:
1 CHECK POOR CONTACT.
Check poor contact in fuel tank pressure sensor connector.
I2 CHECK HARNESS BETWEEN ECM AND
FUEL TANK PRESSURE SENSOR CONNEC,
TOR.
1)Turn the ignition switch to OFF.
2)Disconnect the connector from fuel tank
pressure sensor.
3)Turn the ignition switch to ON.
4)Read the data of fuel tank pressure sensor
signal using Subaru Select Monitor or the
OBD-ll general scan tool.
NOTE:
Gubaru Select Monitor
For detailed operation procedure, refer to the
“READ CURRENT DATA FOR ENGINE”.
to EN(D0HC TURBO)-38, Subaru Select Mon
itor.>
-0BD-II general scan tool
For detailed operation procedures, refer to the
OBD-ll General Scan Tool Instruction Manual.
Check
j the resistance less than 1
I?
;the resistance less than 1
2?
j the resistance less than 1
1?
;the resistance less than 1
I?
; there poor contact in fuel
snk pressure sensor connecx ?
s the value more than 2.8 kPa
21 .O mmHg, 0.827 inHg)?
~~
Yes
30 to step 8.
30 to step 9.
So to step 10.
Go to step 11.
Repair poor contact in fuel tank
pressure sensor
connector.
Repair battery
short circuit in har
ness between
ECM and fuel tank
pressure sensor
connector.
No 3epair harness
md connector.
\IOTE:
n this case, repaii
he following:
Open circuit in
iarness between
X M and rear wirng harness conlector
Poor contact in
:oupling connectoi
3epair ground
;hort circuit in harless between
X M and rear wirng harness conlector.
3epair open circuit
n fuel tank cord.
3epair open circuit
n fuel tank cord.
3eplace the fuel
ank pressure sen;or. X(DOHC
rURBO)-I 1, Fuel
rank Pressure
Sensor. >
3eplace the fuel
:ank pressure sen.
;or. < EC(D0HC
rURBO)-I 1, Fuel
rank Pressure
Sensor.>
EN(D0HC TURBO)-224
m DIAGNOSTIC PROCEDURE WITH DIAGNOSTIC TROUBLE CODE (DTC)
ENGINE (DIAGNOSTICS)
BA:DTC PO461 - FUEL LEVEL SENSOR CIRCUIT RANGE/PERFORMANCE
PROBLEM -
DTC DETECTING CONDITION:
CAUTION:
After repair or replacement of faulty parts, conduct Clear Memory Mode and Inspection Mode .
Two consecutive driving cycles with fault
EN(D0HC TURBO)-225
DIAGNOSTIC PROCEDURE WITH DIAGNOSTIC TROUBLE CODE (DTC)
ENGINE (DIAGNOSTICS)
WIRING DIAGRAM:
I 1
EN1156
EN( DOHC TU RB0)-226
DIAGNOSTIC PROCEDURE WITH DIAGNOSTIC TROUBLE CODE (DTC)
ENGINE (DIAGNOSTICS)
Check
loes the Subaru Select Monior or OED-ll general scan tool
ndicate DTC PO462 or P0463?
a Yes
Inspect DTC
PO462 or PO463
using “List of Diagnostic Trouble
Code (DTC)”.
TURBO)-80, List
of Diagnostic Trouble Code (DTC).s
NOTE:
In this case, it is
not necessary tc
inspect this trouble.
Step
1 CHECK ANY OTHER DTC ON DISPLAY.
No Replace the fuel
level sensor to FU(D0HC
TURBO)-62, Fuel
Level Sensor.>
and fuel sub level
sensor FU(D0HC
TURBO)-63, Fuel
Sub Level Sensor.>
EN(D0HC TURBO)-227
DIAGNOSTIC PROCEDURE WITH DIAGNOSTIC TROUBLE CODE (DTC)
ENGINE (DIAGNOSTICS)
~
BB:DTC PO462 - FUEL LEVEL SENSOR CIRCUIT LOW INPUT -
DTC DETECTING CONDITION:
CAUTION:
After repair or replacement of faulty parts, conduct Clear Memory Mode and Inspection Mode .
WIRING DIAGRAM:
Two consecutive driving cycles with fault
SBF-4 SBF-1
I =&%-=- No 13 3 c
IGNITION SWITCH
@
FUEL SUB
LEVEL SEI
@
FUEL LEVEL
SENSOR
-
I 1
@ - -
a a 112131415161 n 171819110111 1121314151 n 16171819110111
EN1156
m DIAGNOSTIC PROCEDURE WITH DIAGNOSTIC TROUBLE CODE (DTC)
ENGINE (DIAGNOSTICS)
Step
CHECK SPEEDOMETER AND TACHOME-
TER OPERATION IN COMBINATION
METER.
CHECK INPUT SIGNAL FOR ECM.
1)Turn the ignition switch to ON. (Engine OFF)
2)Measure the voltage between ECM connector and chassis ground.
Connector & terminal
(6135) No, 25 (+) - Chassis ground (-)I
CHECK INPUT SIGNAL FOR ECM. (USING
SUBARU SELECT MONITOR.)
Read the data of fuel level sensor signal using
Subaru Select Monitor.
NOTE:
Gubaru Select Monitor
For detailed operation procedure, refer to the
“READ CURRENT DATA FOR ENGINE”.
to EN(D0HC TURBO)-38, Subaru Select Monitor.>
CHECK INPUT VOLTAGE OF ECM.
1)Turn the ignition switch to OFF.
2)Separate fuel tank cord connector (R57) and
rear wiring harness connector (R15).
3)Turn the ignition switch to ON.
4)Measure the voltage of harness between
ECM connector and chassis ground.
Connector & terminal
(6135) No. 25 (+) - Chassis ground (-):
CHECK HARNESS BETWEEN ECM AND
COMBINATION METER.
1)Turn the ignition switch to OFF.
2)Disconnect the connector from connector
(ilo), (i12) and ECM connector.
3)Measure the resistance between ECM and
chassis ground.
Connector & terminal
(6135) No. 25 - Chassis ground:
CHECK HARNESS BETWEEN ECM AND
COMBINATION METER.
Measure the resistance between ECM and
combination meter connector.
Connector & terminal
(6135) No. 25 - (i12) No. 2:
Check
>oes the speedometer and
achometer operate normally?
s the voltage less than 0.1 2
I?
Toes the value change less
han 0.1 2 V by shaking harless and connector of ECM
vhile monitoring the value with
jubaru Select Monitor?
s the voltage more than 0.1 2
d? s the resistance more than 1
An?
s the resistance less than 10
L?
Yes
i o to step 2.
i o to step 6.
jepair poor conact in ECM conlector.
30 to step 4.
io to step 6.
iepair or replace
l e combination
ieter. DI-4, Combinaon Meter Sys3m.>
No Repair or replace
!he combination
meter. IDI-4, Combination Meter System.>
So to step 3.
Even if MIL lights
up, the circuit has
returned to a normal condition at
this time. A temporary poor contact
of the connector
may be the cause.
NOTE:
In this case, repaii
the following:
Poor contact in
combination meter
connector
Poor contact in
ECM connector
Poor contact in
coupling connectors
Go to step 7.
3epair ground
short circuit in harless between
ICM and combiiation meter conlector.
Repair open circuit
oetween ECM and
:ombination meter
:onnector.
NOTE:
In this case, repaii
the following:
Poor contact in
coupling connectot
EN(D0HC TURBO)-229
DIAGNOSTIC PROCEDURE WITH DIAGNOSTIC TROUBLE CODE (DTC)
ENGINE (DIAGNOSTICS)
Step
r CHECK FUEL TANK CORD.
1)Turn the ignition switch to OFF.
2)Disconnect the connector from fuel sub level
sensor.
3)Measure the resistance between fuel sub
level sensor and chassis ground.
Connector & terminal
(R59) No. 1 - Chassis ground:
5 CHECK FUEL TANK CORD.
1)Disconnect the connector from fuel pump
assembly.
2)Measure the resistance between fuel pump
assembly and chassis ground.
Connector & terminal
(R59) No. 2 - Chassis ground:
b CHECK FUEL LEVEL SENSOR.
1)Remove the fuel pump assembly. FU(D0HC TURBO)-60, Fuel Pump.>
2)Measure the resistance between fuel level
sensor and terminals with its float set to the full
position.
Terminals
NO. 2 - NO. 3:
IO CHECK FUEL SUB LEVEL SENSOR.
1)Remove the fuel sub level sensor. FU(D0HC TURBO)-63, Fuel Sub Level Sensor.>
2)Measure the resistance between fuel sub
level sensor and terminals with its float set to
the full position.
Terminals
NO. 1 -NO. 2:
Check
Is the resistance more than 1
MR?
Is the resistance more than 1
MR?
Is the resistance between 0.5
and 2.5 R?
Is the resistance between 0.5
and 2.5 R?
Yes
Go to step 8.
Go to step 9.
Go to step 10.
Repair poor contact in harness
between ECM and
combination meter
connector.
No Repair ground
short circuit in fuel
tank cord.
Repair ground
short circuit in fuel
tank cord.
Replace the fuel
level sensor.
Replace the fuel
sub level sensor.
EN(D0HC TURBO)-230
iim
DIAGNOSTIC PROCEDURE WITH DIAGNOSTIC TROUBLE CODE (DTC)
ENGINE (DIAGNOSTICS)
EN(D0HC TURBO)-231
I DIAGNOSTIC PROCEDURE WITH DIAGNOSTIC TROUBLE CODE (DTC)
ENGINE (DIAGNOSTICS)
BC:DTC PO463 - FUEL LEVEL SENSOR CIRCUIT HIGH INPUT -
DTC DETECTING CONDITION:
CAUTION:
After repair or replacement of faulty parts, conduct Clear Memory Mode and Inspection Mode .
WIRING DIAGRAM:
Two consecutive driving cycles with fault
SBF-4 SBF-1
I
No.13
COMBINATION
IGNITION SWITCH
@
FUEL LEVEL
LEVEL SENSOR SENSOR
EN( DOHC TU RB0)-232
a DIAGNOSTIC PROCEDURE WITH DIAGNOSTIC TROUBLE CODE (DTC) I
ENGINE (DIAGNOSTICSI
Step
CHECK SPEEDOMETER AND TACHOME-
TER OPERATION IN COMBINATION
METER.
! CHECK INPUT SIGNAL FOR ECM.
1)Turn the ignition switch to ON. (Engine OFF)
2)Measure the voltage between ECM connector and chassis ground.
Connector & terminal
(8135) No. 25 (+) - Chassis ground (-):
3 CHECK INPUT VOLTAGE OF ECM.
1)Turn the ignition switch to OFF.
2)Disconnect the combination meter connector
(i10) and ECM connector.
3)Turn the ignition switch to ON.
4)Measure the voltage of harness between
ECM and chassis ground.
Connector & terminal
(8135) No. 25 (+) - Chassis ground (-):
1 CHECK HARNESS BETWEEN ECM AND
FUEL TANK CORD.
1)Turn the ignition switch to OFF.
2)Separate fuel tank cord connector (R57) and
rear wiring harness connector (R15).
3)Measure the resistance between ECM and
fuel tank cord.
Connector & terminal
(8135) NO. 25 - (R15) NO. 2:
> CHECK HARNESS BETWEEN FUEL TANK
CORD AND CHASSIS GROUND.
Measure the resistance between fuel tank cord
and chassis ground.
Connector & terminal
(R15) No. 8 - Chassis ground:
5 CHECK FUEL TANK CORD.
1)Disconnect the connector from fuel level sen.
sor.
2)Measure the resistance between fuel level
sensor and coupling connector.
Connector & terminal
(R57) NO. 8 - (R58) NO. 2:
~~ ~
Check
Ioes the speedometer and
achometer operate normally?
s the voltage more than 4.75
I?
s the voltage more than 4.75
I?
s the resistance less than 5
3?
s the resistance less than 5
n? s the resistance less than 10
n? Yes
i o to step 2.
;o to step 3.
20 to step 4.
i o to step 5.
30 to step 6.
;o to step 7.
No Repair or replace
the combination
meter. IDI-4, Combination Meter System.>
Even if MIL lights
dp, the circuit has
returned to a normal condition at
this time. A temporary poor contact
3f the connector
may be the cause.
NOTE:
In this case, repait
the following:
Poor contact in
fuel pump connector
Poor contact in
coupling connectoi
Repair battery
short circuit
between ECM and
combination meter
connector.
Repair open circuit
between ECM and
fuel tank cord.
Repairopen circuit
between fuel tank
cord and chassis
ground.
NOTE:
In this case, repaii
the following:
Poor contact in
coupling connectors
Repair open circuit
between coupling
connector and fuel
level sensor.
EN(D0HC TURBO)-233
DIAGNOSTIC PROCEDURE WITH DIAGNOSTIC TROUBLE CODE (DTC)
ENGINE (DIAGNOSTICS)
Go to step 9.
Replace the fuel
level sensor. to FU(D0HC
TURBO)-62, Fuel
Level Sensor.>
Replace the fuel
sub level sensor.
TURBO)-63, Fuel
Sub Level SenStep
I CHECK FUEL TANK CORD.
1)Disconnect the connector from fuel sub level
sensor.
2)Measure the resistance between fuel level
sensor and fuel sub level sensor.
Connector & terminal
(R58) NO. 3 - (R59) NO. 2:
I CHECK FUEL TANK CORD.
Measure the resistance between fuel sub level
sensor and coupling connector.
Connector & terminal
(R57) NO. 3 - (R59) NO. 1:
1 CHECK FUEL LEVEL SENSOR.
1)Remove the fuel pump assembly. FU(D0HC TURBO)-60, Fuel Pump.>
2)While moving the fuel level sensor float up
and down, measure resistance between fuel
level sensor terminals.
Terminals
NO. 2 - NO. 3:
IO CHECK FUEL SUB LEVEL SENSOR.
1)Remove the fuel sub level sensor. FU(D0HC TURBO)-63, Fuel Sub Level Sensor.>
2)While moving the fuel sub level sensor float
up and down, measure resistance between
fuel sub level sensor terminals.
Terminals
NO. 1 - NO. 2:
Repair open circuit
between coupling
connector and fuel
sub level sensor.
Go to step 10.
Replace the combination meter.
Combination
Meter Assembly.>
Check
the resistance less than 10
?
the resistance less than 10
?
the resistance more than 53
?
the resistance more than 45
?
between fuel level
sensor and fuel
sub level sensor.
s0r.z
EN(D0HC TURBO)-234
DIAGNOSTIC PROCEDURE WITH DIAGNOSTIC TROUBLE CODE (DTC)
ENGINE (DIAGNOSTICS)
EN(D0HC TURBO)-235
DIAGNOSTIC PROCEDURE WITH DIAGNOSTIC TROUBLE CODE (DTC)
ENGINE (DIAGNOSTICS)
BD:DTC PO464 - FUEL LEVEL SENSOR INTERMITTENT INPUT-
* DTC DETECTING CONDITION:
CAUTION:
After repair or replacement of faulty parts, conduct Clear Memory Mode and Inspection Mode .
WIRING DIAGRAM:
Two consecutive driving cycles with fault
SBF-4 SBF-1
I -e- IGNITION SWITCH - a c N0.13
COMBINATION
METER
' A
GAUGE
EN1 156
EN(D0HC TURBO)-236
DIAGNOSTIC PROCEDURE WITH DIAGNOSTIC TROUBLE CODE (DTC)
ENGINE (DIAGNOSTICS)
Yes
nspect DTC
’0462 or PO463
ising “List of Diagiostic Trouble
;ode (DTC)”.
:Ref. to EN(D0HC
TURBO)-~O, List
i f Diagnostic Trou)le Code (DTC).>
30 to step 3.
No Go to step 2.
Replace the fuel
level sensor. to FU(D0HC
TURBO)-62, Fuel
Level Sensor.>
Step
CHECK ANY OTHER DTC ON DISPLAY.
Check
Does the Subaru Select Monitor or OBD-II general scan tool
indicate DTC PO462 or P0463?
! CHECK FUEL LEVEL SENSOR.
1)Remove the fuel pump assembly. FU(D0HC TURBO)-60, Fuel Pump.>
2)While moving the fuel level sensor float up
and down, make sure that the resistance
between fuel level sensor terminals changes
smoothly.
Terminals
NO. 2 - NO. 3:
I CHECK FUEL SUB LEVEL SENSOR.
1)Remove the fuel sub level sensor. FU(D0HC TURBO)-63, Fuel Sub Level Sensor.>
2)While moving the fuel sub level sensor float
up and down, make sure that the resistance
between fuel level sensor terminals changes
smoothly.
Terminals
NO. 1 - NO. 2:
EN(D0HC TURBO)-237
Does the resistance change
smoothly between approx. 0.5
R and approx. 52 R?
Does the resistance change
smoothly between approx. 0.5
Q and approx. 44 SZ?
3epair poor conact in ECM, comiination meter and
:oupling connecors.
Replace the fuel
sub level sensor.
TURBO)-63, Fuel
Sub Level Sensor.>
DIAGNOSTIC PROCEDURE WITH DIAGNOSTIC TROUBLE CODE (DTC)
ENGINE (DIAGNOSTICS)
EN( DOHC TU RB0)-238
m DIAGNOSTIC PROCEDURE WITH DIAGNOSTIC TROUBLE CODE (DTC) I
ENGINE (DIAGNOSTICS)
BE:DTC PO480 - COOLING FAN RELAY 1 CIRCUIT LOW INPUT-
DTC DETECTING CONDITION:
TROUBLE SYMPTOM:
Two consecutive driving cycles with fault
Radiator fan does not operate properly.
Overheating
CAUTION:
After repair or replacement of faulty parts, conduct Clear Memory Mode and Inspection Mode .
EN(D0HC TURBO)-239
DIAGNOSTIC PROCEDURE WITH DIAGNOSTIC TROUBLE CODE (DTC)
ENGINE (DIAGNOSTICS)
3
WIRING DIAGRAM:
e- SBF-1 T
N0.17 7
EN1157
EN(D0HC TURBO)-240
im DIAGNOSTIC PROCEDURE WITH DIAGNOSTIC TROUBLE CODE (DTC)
ENGINE (DIAGNOSTICS)
Step
CHECK OUTPUT SIGNAL FROM ECM.
1)Turn the ignition switch to OFF.
2)Connect the test mode connector at the
lower portion of instrument panel (on the
driver’s side), to the side of the center console
box.
3)Turn the ignition switch to ON.
4)While operating the radiator fan relay, measure voltage between ECM terminal and
ground.
NOTE:
Radiator fan relay operation can be executed
using Subaru Select Monitor. For procedure,
refer to “Compulsory Valve Operation Check
Mode”. Select Monitor.>
Connector & terminal
(8137) No. 17 (+) - Chassis ground (-):
(8137) No. 28 (+) - Chassis ground (-):
? CHECK GROUND SHORT CIRCUIT IN RADI-
ATOR MAIN FAN RELAY CONTROL CIR-
CUIT.
1)Turn the ignition switch to OFF.
2)Disconnect the connectors from ECM.
3)Measure the resistance of harness between
ECM connector and chassis ground.
Connector & terminal
(8137) No. 17 - Chassis ground:
(8137) No. 28 - Chassis ground:
CHECK POWER SUPPLY FOR RELAY.
1)Remove the main fan relay 1 and 2 from A/C
relay holder.
2)Turn the ignition switch to ON.
3)Measure the voltage between fuse and relay
box (F/B) connector and chassis ground.
%
Connector & terminal
(F66) No. 27 (+) - Chassis ground (-):
(F30) No. 22 (+) - Chassis ground (-):
3 CHECK MAIN FAN RELAY.
1)Turn the ignition switch to OFF.
2)Measure the resistance between main fan
relay terminals.
Terminal
No. 27 - No. 28:(Main fan relay 1)
No. 22 - No. 21 :(Main fan relay 2)
5 CHECK OPEN CIRCUIT IN MAIN FAN RE-
LAY CONTROL CIRCUIT.
Measure the resistance of harness between
ECM and main fan relay connector.
Connector & terminal
(8137) NO. 17 - (F66) NO. 28:
(8137) NO. 28 - (F30) NO. 21:
5 CHECK POOR CONTACT.
Check poor contact in ECM or main fan relay
connector.
Check
Ioes the voltage change
tetween 0 and 10 V?
s the resistance less than 10
2?
s the voltage more than 10 V?
s the resistance between 87
and 107 Q?
s the resistance less than 1
n? s there poor contact in ECM of
nain fan relay connector?
Yes
lepair poor con3ct in ECM conlector.
lepair ground
ihort circuit in
adiator main fan
elay control ciruit.
;o to step 4.
;o to step 5.
20 to step 6.
3epair poor conact in ECM or
nain fan relay con
lector.
No ;o to step 2.
20 to step 3.
qepair open circui
n harness
ietween ignition
;witch and fuse
md relay box (F/B:
:onnector.
3eplace the main
an relay.
3epair harness
and connector.
VOTE:
n this case, repai
:he following:
1 Open circuit in
iarness between
ECM and main far
’elay connector
1 Poor contact in
:oupling connectc
2ontact with SOA
[distributor) serice.
EN(D0HC TURBO)-241
DIAGNOSTIC PROCEDURE WITH DIAGNOSTIC TROUBLE CODE (DTC)
ENGINE (DIAGNOSTICS)
EN(D0HC TURBO)-242
II
DIAGNOSTIC PROCEDURE WITH DIAGNOSTIC TROUBLE CODE (DTC)
ENGINE (DIAGNOSTICS)
BF:DTC PO483 - COOLING FAN FUNCTION PROBLEM -
DTC DETECTING CONDITION:
Two consecutive driving cycles with fault
TROUBLE SYMPTOM:
Occurrence of noise
Overheating
CAUTION:
After repair or replacement of faulty parts, conwct Clear llemory Mode and Inspection Mode .
NOTE:
I f the vehicle, with the engine idling, is placed very close to a wall or another vehicle, preventing normal cooling function, the OBD system may detect malfunction.
EN(D0HC TURBO)-243
DIAGNOSTIC PROCEDURE WITH DIAGNOSTIC TROUBLE CODE (DTC)
ENGINE (DIAGNOSTICS)
WIRING DIAGRAM:
3 e m SBF-1 T
N0.17 L”r”l
I @ECM
I- 1 I
SUB FAN
MOTOR
I
T-
00 0
SUB FAN SUB FAN MAIN FAN MAIN FAN
RELAY2 RELAY1 RELAY2 RELAY1
AIR CONDITIONING RELAY HOLDER
EN1157
EN(D0HC TURBO)-244
a DIAGNOSTIC PROCEDURE WITH DIAGNOSTIC TROUBLE CODE (DTC)
ENGINE (DIAGNOSTICS)
Step Check Yes
1 CHECK ANY OTHER DTC ON DISPLAY. Is there any other DTC on dis- Inspect the releplay? vant DTC using
“List of Diagnostic
Trouble Code
(DTC)”. EN(D0HC
TURBO)-80, List
of Diagnostic Trouble Code (DTC).>
No Check radiator fan,
fan motor and thermostat. CO-9, Radiator
Main Fan System.> and CO-17, Radiator
Sub Fan System.> If thermostat
is stuck, replace
thermostat.
EN(D0HC TURBO)-245
DIAGNOSTIC PROCEDURE WITH DIAGNOSTIC TROUBLE CODE (DTC)
ENGINE (DIAGNOSTICS)
Step
1 CHECK TRANSMISSION TYPE.
BG:DTC PO500 - VEHICLE SPEED SENSOR MALFUNCTION -
DTC DETECTING CONDITION:
CAUTION:
After repair or replacement of faulty parts, conduct Clear Memory Mode and Inspection Mode .
WIRING DIAGRAM:
Immediately at fault recognition
Check Yes No
Go to s tep 2. Is the transmission type AT? Go to s tep 3.
IGNITION
RELAY Far
- -
@ : AT VEHICLES
@ : MT VEHICLES
COMBINATION
METER
F
BATTERY
VEHICLE
SPEED
SENSOR
@ECM I &
m EN1158
EN( DOHC TU R BO)-246
DIAGNOSTIC PROCEDURE WITH DIAGNOSTIC TROUBLE CODE (DTC)
ENGINE (DIAGNOSTICS)
Yes
Check front vehicle speed sensor
signal circuit. FRONT VEHICLE
SPEED SENSOR,
Diagnostic Procedure with Diagnostic Trouble Code
(DTC).>
Go to step 4.
to AT-57, DTC 33
Repair poor contact in ECM connector.
No Go to step 3.
Check speedometer and vehicle
speed sensor.
Speedometer.>
and Front Vehicle
Speed Sensor.>
Repair harness
and connector.
NOTE:
In this case, repai
the following:
Open circuit in
harness between
ECM and combination meter connector
Poor contact in
ECM connector
Poor contact in
combination meter
connector
Poor contact in
coupling connect0
Step
CHECK DTC PO720 ON DISPLAY.
1 CHECK SPEEDOMETER OPERATION IN
COMBINATION METER.
I CHECK HARNESS BETWEEN ECM AND
COMBINATION METER CONNECTOR.
EN(D0HC TURBO)-247
Check
Does the Subaru Select Monitor or OBD-ll general scan tool
indicate DTC P0720?
Does speedometer operate
normally?
Is the resistance less than 10
Q?
DIAGNOSTIC PROCEDURE WITH DIAGNOSTIC TROUBLE CODE (DTC)
ENGINE (DIAGNOSTICS)
BH:DTC PO506 - IDLE CONTROL SYSTEM RPM LOWER THAN EXPECTED -
DTC DETECTING CONDITION:
TROUBLE SYMPTOM:
Two consecutive driving cycles with fault
Engine is difficult to start.
Engine does not start.
Erroneous idling
Engine stalls.
CAUTION:
After repair or replacement of faulty parts, conduct Clear Memory Mode and Inspection Mode .
WIRING DIAGRAM:
MAIN RELAY
BATTERY
SBF-5 3 c
AIR CONTROL
SOLENOID
VALVE
@ ECM
5 6 7 8
EN1160
EN(D0HC TURBO)-248
DIAGNOSTIC PROCEDURE WITH DIAGNOSTIC TROUBLE CODE (DTC)
ENGINE fDIAGNOSTICS)
Check
Ioes the Subaru Select Monior or OBD-ll general scan tool
ndicate DTC PO508 or P509?
Ioes air flow out?
Step
CHECK ANY OTHER DTC ON DISPLAY.
Yes
Inspect DTC
PO505 or P I 505
using “List of Diagnostic Trouble
Code (DTC)”.
TURBO)-80, List
of Diagnostic Trouble Code (DTC).>
NOTE:
In this case, it is
not necessary to
inspect DTC
P0506.
Go to step 4. CHECK IDLE AIR CONTROL SOLENOID
VALVE.
1)Turn the ignition switch to OFF.
2)Remove the idle air control solenoid valve
from throttle body. TURBO)-36, REMOVAL, Idle Air Control Sole.
noid Valve.>
3)Using an air gun, force air into the idle air
control solenoid valve by-pass air inlet. Confirm that forced air subsequently escapes from
both main air passage and assist air passage.
CHECK IDLE AIR CONTROL SOLENOID
VALVE DUTY RATIO.
1)Turn the ignition switch to ON.
2)Start the engine, and warm-up the engine.
3)Turn all accessory switches to OFF.
4)Read the data of idle air control solenoid
valve duty ratio using Subaru Select Monitor 01
OBD-II general scan tool.
NOTE:
Gubaru Select Monitor
For detailed operation procedures, refer to the
“READ CURRENT DATA FOR ENGINE”.
to EN(D0HC TURBO)-38, Subaru Select Mon
itor.>
*OBD-ll general scan tool
For detailed operation procedures, refer to the
OBD-II General Scan Tool Instruction Manual.
1)Turn the ignition switch to OFF.
2)Remove the idle air control solenoid valve
from throttle body. TURBO)-36, REMOVAL, Idle Air Control Sole,
noid Valve.>
3)Remove the throttle body to intake manifold.
Throttle Body.>
4)Using an air gun, force air into the solenoid
valve installation area and throttle valve interior. Confirm that forced air subsequently
escapes from both these areas.
1 CHECK BY-PASS AIR LINE.
s the value more than 60%? Go to step 4.
I
loes air flow out? Replace the idle
air control solenoid
valve. FU(D0HC
TURBO)-36, Idle
Air Control Solenoid Valve.>
No 20 to step 2.
3eplace the idle
iir control solenoid
ialve. -U(DOHC
rURBO)-36, Idle
4ir Control Soleioid Valve.> After
.eplace, Go to step
5.
END.
3eplace the throtle body. ‘U(D0HC
Throttle Body.>
rURBO)-14,
EN(D0HC TURBO)-249
DIAGNOSTIC PROCEDURE WITH DIAGNOSTIC TROUBLE CODE (DTC)
ENGINE (DIAGNOSTICS)
BI: DTC PO507 - IDLE CONTROL SYSTEM RPM HIGHER THAN EXPECTED -
DTC DETECTING CONDITION:
. TROUBLE SYMPTOM:
CAUTION:
After repair or replacement of faulty parts, conduct Clear Memory Mode and Inspection Mode .
WIRING DIAGRAM:
Two consecutive driving cycles with fault
Engine keeps running at higher revolution than specified idling revolution.
MAIN RELAY m
SBF-5
BATTERY
(3c
-1 AIR CONTROL
SOLENOID
IgI
-
I
5 6 7 8
EN116(
EN(D0HC TURBO)-250
51
DIAGNOSTIC PROCEDURE WITH DIAGNOSTIC TROUBLE CODE (DTC)
ENGINE (DIAGNOSTICS)
__
Step
I CHECK ANY OTHER DTC ON DISPLAY.
2 CHECK THROTTLE CABLE.
3 CHECK AIR INTAKE SYSTEM.
1)Turn the ignition switch to ON.
2)Start the engine, and idle it.
3)Check the following items.
*Loose installation of intake manifold, idle air
control solenoid valve and throttle body
Cracks of intake manifold gasket, idle air control solenoid valve gasket and throttle body
gasket
*Disconnections of vacuum hoses
Check
loes the Subaru Select Monior or OBD-ll general scan tool
ndicate DTC PO508 or P0509?
loes the throttle cable have
,lay for adjustment?
s there a fault in air intake sysem?
Yes
Inspect DTC
PO508 or PO509
Jsing “List of Diagiostic Trouble
:ode (DTC)”.
TURBO)-80, List
Df Diagnostic Troude Code (DTC).>
NOTE:
In this case, it is
l o t necessary tc
inspect DTC
P0507.
Go to step 3.
Repair air suction
and leaks.
No 20 to step 2.
4djust throttle
:able. TION, Accelerator
2ontrol Cable.>
3eplace the idle
iir control solenoid
ialve. -U(DOHC
rURBO)-36, Idle
4ir Control Soleioid Valve.>
SP-7, INSTALLA-
EN( DOHC TU RB0)-251
DIAGNOSTIC PROCEDURE WITH DIAGNOSTIC TROUBLE CODE (DTC)
ENGINE (DIAGNOSTICS)
BJ:DTC PO508 - IDLE CONTROL SYSTEM CIRCUIT LOW INPUT -
DTC DETECTING CONDITION:
Immediately at fault recognition
TROUBLE SYMPTOM:
Erroneous idling
Engine stalls.
Engine breathing
CAUTION:
After repair or replacement of faulty parts, conduct Clear Memory Mode and Inspection Mode .
WIRING DIAGRAM:
MAIN RELAY
BATTERY
SBF-5
1 - 1 1 1 I
AIR CONTROL
SOLENOID
VALVE
5 6 7 8
EN(D0HC TURBO)-252
DIAGNOSTIC PROCEDURE WITH DIAGNOSTIC TROUBLE CODE (DTC)
ENGINE (DIAGNOSTICS)
Yes
3epair poor conact in ECM conlector.
;o to step 3.
20 to step 4.
3epair ground
short circuit in harless between
X M and idle air
:ontrol solenoid
/alve connector.
20 to step 6.
3epair poor con:act in ECM and
dle air control
;olenoid valve
:onnectors.
Step
CHECK OUTPUT SIGNAL FROM ECM.
1)Turn the ignition switch to ON.
2)Measure the voltage between ECM and
chassis ground.
Connector & terminal
(8136) No. 10 (+) - Chassis ground (-):
! CHECK POWER SUPPLY TO IDLE AIR CON-
TROL SOLENOID VALVE.
1)Turn the ignition switch to OFF.
2)Disconnect the connector from idle air control solenoid valve.
3)Turn the ignition switch to ON.
4)Measure the voltage between idle air control
solenoid valve and engine ground.
Connector & terminal
(E7) No. 2 (+) - Engine ground (-)I
No Go to step 2.
Repair harness
and connector.
NOTE:
In this case, repair
the following:
Open circuit in
harness between
idle air control
solenoid valve and
main relay connector
Poor contact in
coupling connector
Repair harness
and connector.
NOTE:
In this case, repair
the following:
Open circuit in
harness between
ECM and idle air
control solenoid
valve connector
Poor contact in
coupling connector
Go to step 5.
Repair open circuit
in harness
between idle air
control solenoid
valve connector
and engine ground
terminal.
Replace the idle
air control solenoid
valve. FU(D0HC
TURBO)-36, Idle
Air Control Solenoid Valve.>
~~ ~
Check
s the voltage more than 3 V?
I CHECK HARNESS BETWEEN ECM AND
IDLE AIR CONTROL SOLENOID VALVE
s the voltage more than 10 V?
Is the resistance less than 1
Q?
I CHECK HARNESS BETWEEN ECM AND
IDLE AIR CONTROL SOLENOID VALVE
CONNECTOR.
Measure the resistance of harness between
ECM and chassis ground.
Connector & terminal
(8136) No. 10 - Chassis ground:
CHECK GROUND CIRCUIT OF IDLE AIR
CONTROL SOLENOID VALVE.
Measure the resistance of harness between
idle air control solenoid valve connector and
engine ground.
I
Connector & terminal
(E7) No. 3 - Engine ground:
i CHECK POOR CONTACT.
Check poor contact in ECM and idle air control
solenoid valve connectors.
IS the resistance less than 10
a? Is the resistance less than 5
Q?
Is there poor contact in ECM
and idle air control solenoid
valve connectors?
EN( DOHC TU RB0)-253
DIAGNOSTIC PROCEDURE WITH DIAGNOSTIC TROUBLE CODE (DTC)
ENGINE (DIAGNOSTICS)
BK:DTC PO509 - IDLE CONTROL SYSTEM CIRCUIT HIGH INPUT -
DTC DETECTING CONDITION:
Immediately at fault recognition
TROUBLE SYMPTOM:
Erroneous idling
Engine stalls.
Engine breathing
CAUTION:
After repair or replacement of faulty parts, conduct Clear Memory Mode and Inspection Mode .
WIRING DIAGRAM:
MAIN RELAY
BATTERY
SBF-5
AIR CONTROL
SOLENOID
VALVE
lrOl
a@! %
H
EN1160
EN(D0HC TURBO)-254
DIAGNOSTIC PROCEDURE WITH DIAGNOSTIC TROUBLE CODE (DTC)
ENGINE (DIAGNOSTICS)
s the voltage more than 10 V?
Ioes the voltage change more
han 10 V by shaking harness
ind connector of ECM while
nonitoring the value with voltkge meter?
Step
CHECK THROTTLE CABLE.
Repair battery
short circuit in harness between
ECM and idle air
control solenoid
valve connector.
After repair,
replace the ECM.
Engine Control
Module.>
Repair battery
short circuit in harness between
ECM and idle air
control solenoid
valve connector.
After repair,
replace the ECM.
Engine Control
Module.>
TURBO)-47,
TU RB0)-47,
! CHECK OUTPUT SIGNAL FROM ECM.
1)Turn the ignition switch to ON.
2)Measure the voltage between ECM and
chassis ground.
Connector & terminal
(6136) No. 10 (+) - Chassis ground (-):
I CHECK OUTPUT SIGNAL FROM ECM.
1)Turn the ignition switch to OFF.
2)Disconnect the connector from idle air control solenoid valve.
3)Turn the ignition switch to ON.
4)Measure the voltage between ECM and
chassis ground.
Connector & terminal
(6 136) No. 10 (+) - Chassis ground (-):
I CHECK OUTPUT SIGNAL FROM ECM.
Measure the voltage between ECM and chassis ground.
Connector & terminal
(6136) No. 10 (+) - Chassis ground (-):
'lay for adjustment?
No Adjust throttle
:able. TION, Accelerator
Control Cable.>
Go to step 4.
SP-7, INSTALLA-
Replace the idle
air control solenoic
valve FU(D0HC
TURBO)-36, Idle
Air Control Solenoid Valve.> and
ECM FU(D0HC
Engine Control
Module.>.
Contact with SOA
(distributor) service.
NOTE:
lnsepction by DTL
is required, be
cause probablc
cause is deteriora
tion of multiplf
parts.
TURBO)-47,
EN(D0HC TURBO)-255
I
DIAGNOSTIC PROCEDURE WITH DIAGNOSTIC TROUBLE CODE (DTC)
ENGINE (DIAGNOSTICS)
EN(D0HC TURBO)-256
DIAGNOSTIC PROCEDURE WITH DIAGNOSTIC TROUBLE CODE (DTC)
ENGINE IDIAGNOSTICS)
~ ~ ~ ~ ~ ~ ~
BL:DTC PO512 - STARTER SWITCH CIRCUIT HIGH INPUT -
DTC DETECTING CONDITION:
TROUBLE SYMPTOM:
CAUTION:
After repair or replacement of faulty parts, conduct Clear Memory Mode and Inspection Mode .
Two consecutive driving cycles with fault
Failure of engine to start
EN(D0HC TURBO)-257
DIAGNOSTIC PROCEDURE WITH DIAGNOSTIC TROUBLE CODE (DTC)
ENGINE (DIAGNOSTICS)
WIRING DIAGRAM:
IGNITION
SWITCH
INTERRUPT
RELAY
I TO SECURITY SYSTEM]
AT : AT VEHICLES El
STARTER
RE LAY (MT)
SWITCH
(MT)
B @ ECM U
7 8 9 10 11 12
EN1 139
EN(D0HC TURBO)-258
DIAGNOSTIC PROCEDURE WITH DIAGNOSTIC TROUBLE CODE (DTC)
ENGINE (DIAGNOSTICS)
Check
Does the starter motor operate
when ignition switch to “ON”?
Step
1 CHECK OPERATION OF STARTER MOTOR.
NOTE:
Place the inhibitor switch in each position.
Yes No
Repair battery Check starter
short circuit in motor circuit.
starter motor circuit. After repair, TURBO)-64,
replace the ECM. STARTER
Engine Control for Engine StartModule. > ing Failure.>
EN(D0HC TURB0)-259
lill
DIAGNOSTIC PROCEDURE WITH DIAGNOSTIC TROUBLE CODE (DTC)
ENGINE (DIAGNOSTICS)
BM:DTC PO545 - EXHAUST GAS TEMPERATURE SENSOR CIRCUIT LOW IN-
PUT -
DTC DETECTING CONDITION:
Immediately at fault recognition
TROUBLE SYMPTOM:
Hard to start
Erroneous idling
Poor driving performance
CAUTION:
After repair or replacement of faulty parts, conduct Clear Memory Mode and Inspection Mode .
WIRING DIAGRAM:
EXHAUSTGAS
TEMPERATURE
SENSOR
IC
F
EN1 161
EN(D0HC TURBO)-260
Em DIAGNOSTIC PROCEDURE WITH DIAGNOSTIC TROUBLE CODE (DTC)
ENGINE (DIAGNOSTICS)
Check Yes
s the value greater than
1200°C (21 92”F)?
Go to step 2.
s the value less than 372°C
702”F)? exhaust gas temReplace the
perature sensor.
TURBO)-46,
Exhaust Temperature Sensor.>
Step
I CHECK CURRENT DATA.
1)Start the engine.
2)Read the data of exhaust gas temperature
sensor signal using Subaru Select Monitor or
OBD-II general scan tool.
NOTE:
*Subaru Select Monitor
For detailed operation procedure, refer to the
“READ CURRENT DATA FOR ENGINE”.
to EN(D0HC TURBO)-38, Subaru Select Monitor.,
*OBD-II general scan tool
For detailed operation procedures, refer to the
OBD-II General Scan Tool Instruction Manual.
GAS TEMPERATURE SENSOR AND ECM
CONNECTOR.
1)Turn the ignition switch to OFF.
2)Disconnect the connector from exhaust gas
temperature sensor.
3)Turn the ignition switch to ON.
4)Read the data of exhaust gas temperature
sensor signal using Subaru Select Monitor or
OBD-II general scan tool.
NOTE:
*Subaru Select Monitor
For detailed operation procedure, refer to the
“READ CURRENT DATA FOR ENGINE.
to EN(D0HC TURBO)-38, Subaru Select Monitor.>
*OBD-II general scan tool
For detailed operation procedures, refer to the
OBD-II General Scan Tool Instruction Manual.
! CHECK HARNESS BETWEEN EXHAUST
No Repair poor contact.
NOTE:
In this case, repaii
the following:
Poor contact in
exhaust gas temperature sensor
Poor contact in
ECM
Poor contact in
joint connector
Repair ground
short circuit in harness between
exhaust gas temperature sensor
and ECM connector.
EN(D0HC TURBO)-261
DIAGNOSTIC PROCEDURE WITH DIAGNOSTIC TROUBLE CODE (DTC)
ENGINE (DIAGNOSTICS)
BN:DTC PO546 - EXHAUST GAS TEMPERATURE SENSOR CIRCUIT HIGH IN-
PUT -
DTC DETECTING CONDITION:
Immediately at fault recognition
TROUBLE SYMPTOM:
Hard to start
Erroneous idling
Poor driving performance
CAUTION:
After repair or replacement of faulty parts, conduct Clear Memory Mode and Inspection Mode .
WIRING DIAGRAM:
EXHAUST GAS
TEMPERATURE
SENSOR
10
F
@ ECM I
EN1 I61
EN(D0HC TURBO)-262
p19
DIAGNOSTIC PROCEDURE WITH DIAGNOSTIC TROUBLE CODE (DTC)
ENGINE (DIAGNOSTICS)
Step
CHECK CURRENT DATA.
1)Start the engine.
2)Read the data of exhaust gas temperature
sensor signal using Subaru Select Monitor or
OBD-II general scan tool.
NOTE:
*Subaru Select Monitor
For detailed operation procedure, refer to the
“READ CURRENT DATA FOR ENGINE”.
to EN(D0HC TURBO)-38, Subaru Select Monitor.>
*OBD-ll general scan tool
For detailed operation procedures, refer to the
OBD-II General Scan Tool Instruction Manual.
GAS TEMPERATURE SENSOR AND ECM
CONNECTOR.
1)Turn the ignition switch to OFF.
2)Disconnect the connector from exhaust gas
temperature sensor.
3)Measure the voltage between exhaust gas
temperature sensor connector and engine
ground.
! CHECK HARNESS BETWEEN EXHAUST
Connector & terminal
(8279) No. 1 (+) - Engine ground (-):
I CHECKHARNESSBETWEENEXHAUST
GAS TEMPERATURE SENSOR AND ECM
CONNECTOR.
1)Turn the ignition switch to ON.
2)Measure the voltage between exhaust gas
temperature sensor connector and engine
ground.
Connector & terminal
(8279) No. 1 (+) - Engine ground (-):
I CHECK HARNESS BETWEEN EXHAUST
GAS TEMPERATURE SENSOR AND ECM
CONNECTOR.
Measure the voltage between exhaust gas
temperature sensor connector and engine
ground.
Connector & terminal
(8279) No. 1 (+) - Engine ground (-):
Check
; the value less than 372°C
702”F)?
s the voltage more than 10 V?
s the voltage more than 10 V?
s the voltage more than 4 V?
Yes
20 to step 2.
3epair battery
short circuit in harless between
ECM and exhaust
jas temperature
sensor connector.
?epair battery
;hort circuit in harless between
ECM and exhaust
gas temperature
;ensor connector.
30 to step 5.
No lepair poor conact.
JOTE:
n this case, repair
he following:
Poor contact in
!xhaust gas tem)erature sensor
Poor contact in
iCM
Poor contact in
Dint connector
;o to step 3.
30 to step 4.
lepair harness
ind connector.
4OTE:
n this case, repaii
he following:
Open circuit in
iarness between
X M and exhaust
jas temperature
;ensor connector
Poor contact in
?xhaust gas temierature sensor
:onnector
Poor contact in
X M connector
1 Poor contact in
oint connector
EN(D0HC TURBO)-263
I DIAGNOSTIC PROCEDURE WITH DIAGNOSTIC TROUBLE CODE (DTC)
ENGINE (DIAGNOSTICS)
Yes
3eplace the
?xhaust gas temIerature sensor.
:Ref. to FU(D0HC
rURBO)-46,
ure
Exhaust TemperaStep
CHECK HARNESS BETWEEN EXHAUST
GAS TEMPERATURE SENSOR AND ECM
CONNECTOR.
1)Turn the ignition switch to OFF.
2)Measure the resistance of harness between
exhaust gas temperature sensor connector
and engine ground.
Connector & terminal
(B279) No. 2 - Engine ground:
No Repair harness
and connector.
NOTE:
In this case, repair
the following:
harness between
ECM and exhaust
gas temperature
sensor connector
Poor contact in
exhaust gas temperature sensor
connector
Poor contact in
ECM connector
Poor contact in
joint connector
. Open circuit in
I
Check
s the resistance less than 5
n? EN( DOHC TU RB0)-264
a DIAGNOSTIC PROCEDURE WITH DIAGNOSTIC TROUBLE CODE (DTC)
ENGINE (DIAGNOSTICS)
EN(D0HC TURBO)-265
I DIAGNOSTIC PROCEDURE WITH DIAGNOSTIC TROUBLE CODE (DTC)
ENGINE (DIAGNOSTICS)
B0:DTC PO604 - INTERNAL CONTROL MODULE MEMORY CHECK SUM ER-
DTC DETECTING CONDITION:
TROUBLE SYMPTOM:
ROR -
Immediately at fault recognition
Engine does not start.
Engine stalls.
CAUTION:
After repair or replacement of faulty parts, conduct Clear Memory Mode and Inspection Mode .
EN(D0HC TURBO)-266
DIAGNOSTIC PROCEDURE WITH DIAGNOSTIC TROUBLE CODE (DTC)
ENGINE (DIAGNOSTICS)
Yes Step Check
1 CHECK ANY OTHER DTC ON DISPLAY. Does the Subaru Select Moni- Replace the ECM.
tor or OBD-ll general scan tool indicate DTC P0604? TURBO)-47,
Engine Control
Module.>
WIRING DIAGRAM:
No It is not necessary
to inspect DTC
P0604.
MAIN RELAY
FRONT OXYGEN(A/F) SENSOIR -
BATTERY
IGNITION
SWITCH
No.11 SBF-4 SBF-1
L
EN1171
EN( DOHC TU RB0)-267
DIAGNOSTIC PROCEDURE WITH DIAGNOSTIC TROUBLE CODE (DTC)
ENGINE (DIAGNOSTICS)
Step
1 CHECK OPERATION OF BRAKE LIGHT.
BP:DTC PO703 - BRAKE SWITCH INPUT MALFUNCTION -
DTC DETECTING CONDITION:
CAUTION:
After repair or replacement of faulty parts, conduct Clear Memory Mode and Inspection Mode .
WIRING DIAGRAM:
Two consecutive driving cycles with fault
Check Yes No
Go to step 2. Does the brake light come on
when depressing the brake
pedal? cuit.
Repair or replace
the brake light cirBATTERY
n r I 2 BRAKE LIGHT
i Ip, 0 z
I I T 0 STOP LIGHTS1
TCM
B2M4366
EN( DOHC TU RB0)-268
U
DIAGNOSTIC PROCEDURE WITH DIAGNOSTIC TROUBLE CODE (DTC)
ENGINE (DIAGNOSTICS)
Yes
20 to step 3.
30 to step 4.
30 to step 5.
30 to step 6.
3epair poor conact in TCM conlector.
No Repair or replace
the harness and
connector.
NOTE:
In this case, repai
the following:
Open circuit in
harness between
TCM and brake
light switch connector
Poor contact in
TCM connector
Poor contact in
brake light switch
connector
Repair ground
short circuit in har.
ness between
TCM and brake
light switch connector.
Adjust or replace
the brake light
switch. 7, STOP LIGHT
SWITCH ,
INSPECTION,
Stop Light System.>
Adjust or replace
the brake light
switch. 7, STOP LIGHT

SWITCH,
INSPECTION,
Stop Light System.>
Replace the TCM.
Transmission Con,
trol Module
(TCM).>
Step
CHECK HARNESS BETWEEN TCM AND
BRAKE LIGHT SWITCH CONNECTOR.
1)Disconnect the connectors from TCM and
brake light switch.
2)Measure the resistance of harness between
TCM and brake light switch connector.
Connector & terminal
(B55) NO. 12 - (965) NO. 3:
Check
Is the resistance less than 1
R?
EN(D0HC TURBO)-269
I CHECK HARNESS BETWEEN TCM AND
BRAKE LIGHT SWITCH CONNECTOR.
Measure the resistance of harness between
TCM and chassis ground.
Connector & terminal
(B55) No. 12 - Chassis ground:
1 CHECK INPUT SIGNAL FOR TCM.
1)Connect the connectors to TCM and brake
light switch.
2)Measure the voltage between TCM and
chassis ground.
Connector & terminal
(B55) No. 12 (+) - Chassis ground (-):
B CHECK INPUT SIGNAL FOR TCM.
Measure the voltage between TCM and chassis ground.
Connector & terminal
(955) No. 12 (+) - Chassis ground (-):
i CHECK POOR CONTACT.
Check poor contact in TCM connector.
Is the resistance more than 1
MR?
Is the voltage less than 1 V
when releasing the brake
pedal?
Is the voltage more than 10 V
when depressing the brake
pedal?
Is there poor contact in TCM
connector?
DIAGNOSTIC PROCEDURE WITH DIAGNOSTIC TROUBLE CODE (DTC)
ENGINE (DIAGNOSTICS)
Step
1 CHECK ANY OTHER DTC ON DISPLAY.
BQ:DTC PO731 - GEAR 1 INCORRECT RATIO -
NOTE:
For the diagnostic procedure, refer to DTC P0734. 4 INCORRECT RATIO -, Diagnostic Procedure with Diagnostic Trouble Code (DTC).>
BR:DTC PO732 - GEAR 2 INCORRECT RATIO -
NOTE:
For the diagnostic procedure, refer to DTC P0734. 4 INCORRECT RATIO -, Diagnostic Procedure with Diagnostic Trouble Code (DTC).>
BS:DTC PO733 - GEAR 3 INCORRECT RATIO -
NOTE:
For the diagnostic procedure, refer to DTC P0734. 4 INCORRECT RATIO -, Diagnostic Procedure with Diagnostic Trouble Code (DTC).>
BT:DTC PO734 - GEAR 4 INCORRECT RATIO -
DTC DETECTING CONDITION:
Two consecutive driving cycles with fault
TROUBLE SYMPTOM:
Shift point too high or too low; engine brake not effective in “3’ range; excessive shift shock; excessive
tight corner “braking”
CAUTION:
After repair or replacement of faulty parts, conduct Clear Memory Mode and Inspection Mode .
WIRING DIAGRAM:
Check
Is there any other DTC on disYes
Inspect relevant
DTC using “List of
Diagnostic Trouble Code (DTC)”.
TURBO)-80, List
of Diagnostic Trouble Code (DTC).>
Repair or replace
the throttle position sensor circuit.
Repair or replace
the vehicle speed
sensor 2 circuit.
play?
No Go to step 2.
Go to step 3.
Go to step 4.
2 CHECK THROTTLE POSITION SENSOR
CIRCUIT.
Check throttle position sensor circuit. SOR, Diagnostic Procedure with Diagnostic
Trouble Code (DTC).>
CHECK FRONT VEHICLE SPEED SENSOR
CIRCUIT.
Check front vehicle speed sensor circuit. SENSOR, Diagnostic Procedure with Diagnostic Trouble Code (DTC).>
SPEED SENSOR CIRCUIT.
Check torque converter turbine speed sensor
circuit. VERTER TURBINE SPEED SENSOR, Diag-

nostic Procedure with Diagnostic Trouble Code
(DTC).>
AT-52, DTC 31 THROTTLE POSITION SEN-
3
to AT-57, DTC 33 FRONT VEHICLE SPEED
1 CHECK TORQUE CONVERTER TURBINE
Is there any trouble in throttle
position sensor circuit?
Is there any trouble in vehicle
speed sensor 2 circuit?
Is there any trouble in torque
converter turbine speed sensor
circuit?
I
the torque converter turbine
speed sensor cirEN( DOHC TU RB0)-270
DIAGNOSTIC PROCEDURE WITH DIAGNOSTIC TROUBLE CODE (DTC)
ENGINE (DIAGNOSTICS)
Step
5 CHECK POOR CONTACT.
Check poor contact in TCM connector.
6 CHECK MECHANICAL TROUBLE.
Check mechanical trouble in automatic transmission.
Check Yes
Is there poor contact in TCM Repair poor conconnector? tact in TCM connector.
Is there any mechanical trouble Repair or replace
in automatic transmission? the automatic
transmission.
INSPECTION,
Road Test.>
No Go to step 6.
Replace the TCM.
Transmission Control Module
(TCM).>
EN(D0HC TURB0)-271
-
Check
Is there any other DTC on display?
Is there any trouble in lock-up
duty solenoid circuit?
Is there any trouble in throttle
position sensor circuit?
Is there any trouble in torque
converter turbine speed sensor
circuit?
DIAGNOSTIC PROCEDURE WITH DIAGNOSTIC TROUBLE CODE (DTC)
ENGINE (DIAGNOSTICS)
Yes
Inspect the relevant DTC using
“List of Diagnostic
Trouble Code
(DTC)”. EN(D0HC
TURBO)-80, List
of Diagnostic Trou,
ble Code (DTC).>
Repair or replace
the lock-up duty
solenoid circuit.
Repair or replace
the throttle position sensor circuit.
Repair or replace
the torque converter turbine
speed sensor cirBU:DTC PO741 - TORQUE CONVERTER CLUTCH SYSTEM MALFUNCTION -
DTC DETECTING CONDITION:
TROUBLE SYMPTOM:
Two consecutive driving cycles with fault
No lock-up (after engine warm-up)
No shift or excessive tight corner “braking”
CAUTION:
After repair or replacement of faulty parts, conduct Clear Memory Mode and Inspection Mode .
Is there any trouble in engine
speed input circuit?
Is there any trouble in inhibitor
switch circuit?
Step
1 CHECK ANY OTHER DTC ON DISPLAY.
Repair or replace
the engine speed
input circuit.
Repair or replace
the inhibitor switch
circuit.
2 CHECK LOCK-UP DUTY SOLENOID CIR-
CUIT.
Check lock-up duty solenoid circuit. Diagnostic Procedure with Diagnostic Trouble
Code (DTC).>
CIRCUIT.
Check throttle position sensor circuit. SOR, Diagnostic Procedure with Diagnostic
Trouble Code (DTC).>
4 CHECK TORQUE CONVERTER TURBINE
SPEED SENSOR CIRCUIT.
Check torque converter turbine speed sensor
circuit. VERTER TURBINE SPEED SENSOR, Diag-
nostic Procedure with Diagnostic Trouble Code
(DTC).>
CHECK ENGINE SPEED INPUT CIRCUIT.
Check engine speed input circuit. 44, DTC 11 ENGINE SPEED SIGNAL, Diag-
nostic Procedure with Diagnostic Trouble Code
(DTC).>
Check inhibitor switch circuit. CHECK INHIBITOR SWITCH., Diagnostic Pro.
cedure for No-Diagnostic Trouble Code
(DTC).>
CHECK BRAKE LIGHT SWITCH CIRCUIT.
- Check brake light switch circuit. Procedure for No-Diagnostic Trouble Code
(DTC).>
AT-94, DTC 77 LOCK-UP DUTY SOLENOID,
3 CHECK THROTTLE POSITION SENSOR
AT-52, DTC 31 THROTTLE POSITION SEN-
5
6 CHECK INHIBITOR SWITCH CIRCUIT.
7
cuit.
light switch circuit? the brake light
switch circuit.
No Go to step 2.
Go to step 3.
Go to step 4.
Go to step 5.
Go to step 6.
Go to step 7.
Go to step 8.
EN(D0HC TURBO)-272
DIAGNOSTIC PROCEDURE WITH DIAGNOSTIC TROUBLE CODE (DTC)
ENGINE (DIAGNOSTICS)
Yes
Repair or replace
the ATF temperature sensor circuit.
Repair poor contact in TCM connector.
Repair or replace
the automatic
transmission.
INSPECTION,
Road Test.>
Step
8 CHECK ATF TEMPERATURE SENSOR CIR-
CUIT.
Check ATF temperature sensor circuit. SOR, Diagnostic Procedure with Diagnostic
Trouble Code (DTC).>
Check poor contact in TCM connector.
AT-48, DTC 27 ATF TEMPERATURE SEN-
9 CHECK POOR CONTACT.
No Go to step 9.
Go to step 10.
Replace the TCM.
Transmission Control Module
(TCM).>
Check mechanical trouble in automatic transmission.
Check
Is there any trouble in ATF temperature sensor circuit?
Is there poor contact in TCM
connector?
Is there any mechanical trouble
in automatic transmission?
EN(D0HC TURBO)-273
DIAGNOSTIC PROCEDURE WITH DIAGNOSTIC TROUBLE CODE (DTC)
ENGINE (DIAGNOSTICS)
BV: DTC PI086 - TUMBLE GENERATOR VALVE #2 (LH) POSITION SENSOR
CIRCUIT LOW INPUT -
DTC DETECTING CONDITION:
Immediately at fault recognition
TROUBLE SYMPTOM:
Erroneous idling
Engine stalls.
Poor driving performance
CAUTION:
After repair or replacement of faulty parts, conduct Clear Memory Mode and Inspection Mode .
WIRING DIAGRAM:
I
TUMBLE GENERATOR VALVE
POSITION SENSOR
" -
EN( DOHC TU RB0)-274
DIAGNOSTIC PROCEDURE WITH DIAGNOSTIC TROUBLE CODE (DTC)
ENGINE (DIAGNOSTICS)
Step
CHECK CURRENT DATA.
1)Start the engine.
2)Read the data of tumble generator valve
position sensor signal using Subaru Select
Monitor or OBD-ll general scan tool.
NOTE:
*Subaru Select Monitor
For detailed operation procedure, refer to the
“READ CURRENT DATA FOR ENGINE”.
to EN(D0HC TURBO)-38, Subaru Select Monitor.>
*OBD-ll general scan tool
For detailed operation procedures, refer to the
OBD-II General Scan Tool Instruction Manual.
! CHECK INPUT SIGNAL FOR ECM.
Measure the voltage between ECM connector
and chassis ground while tumble generator
valve is fully closed.
‘Connector & terminal
(8135) No. 9 (+) - Chassis ground (-):
CHECK INPUT SIGNAL FOR ECM.
Measure the voltage between ECM connector
and chassis ground.
I
Connector & terminal
(8135) No. 9 (+) - Chassis ground (-):
I CHECK INPUT SIGNAL FOR ECM.
Measure the voltage between ECM connector
and chassis ground.
Connector & terminal
(8 135) No. 13 (+) - Chassis ground (-):
I CHECK INPUT SIGNAL FOR ECM. (USING
SUBARU SELECT MONITOR.)
Measure the voltage between ECM connector
and chassis ground.
Check
s the value less than 0.1 V?
s the voltage more than 4.5 V?
loes the voltage change more
han 4.5 V by shaking harness
md connector of ECM while
nonitoring the value with voltige meter?
s the voltage less than 0.1 V?
loes the voltage change more
han 0.1 V by shaking harness
md connector of ECM while
nonitoring the value with Sub3ru Select Monitor?
Yes
30 to step 2.
20 to step 4.
3epair poor conact in ECM conlector.
30 to step 6.
3epair poor con:act in ECM conlector.
No Even if MIL lights
up, the circuit has
returned to a normal condition at
this time. A tempo.
rary poor contact
of the connector
may be the cause.
NOTE:
In this case, repaii
the following:
Poor contact in
throttle position
sensor connector
Poor contact in
ECM connector
Poor contact in
coupling connect0
Go to step 3.
Contact with SOA
(distributor) service.
NOTE:
Inspection by DTk
is required, be
cause probable
cause is deteriora
tion of multiple
parts.
Go to step 5.
Go to step 6.
EN(D0HC TURBO)-275
DIAGNOSTIC PROCEDURE WITH DIAGNOSTIC TROUBLE CODE (DTC)
ENGINE (DIAGNOSTICS)
Yes
20 to step 7.
20 to step 8.
3epair ground
short circuit in harless between tum)le generator valve
losition sensor
and ECM connecor.
3epair poor conact in tumble gen?rator valve
iosition sensor
:onnector.
Step
6 CHECK HARNESS BETWEEN ECM AND
TUMBLE GENERATOR VALVE POSITION
SENSOR CONNECTOR.
1)Turn the ignition switch to OFF.
2)Disconnect the connectors from tumble generator valve position sensor.
3)Turn the ignition switch to ON.
4)Measure voltage between tumble generator
valve position sensor connector and engine
ground.
Connector & terminal
(E50) No. 1 (+) - Engine ground (-):
No Repair harness
and connector.
NOTE:
In this case, repai
the following:
Open circuit in
harness between
tumble generator
valve position sen
sor and ECM connector
Poor contact in
tumble generator
valve position sen
sor connector
Poor contact in
ECM connector
Poor contact in
coupling conneck
Poor contact in
joint connector
Repair harness
and connector.
NOTE:
In this case, repa
the following:
Open circuit in
harness between
tumble generator
valve position sen
sor and ECM connector
Poor contact in
ECM connector
Poor contact in
tumble generator
valve position sen
sor connector
Poor contact in
coupling connectc
Go to step 9.
Replace the tumble generator valvc
assembly. FU(D0HC
TURBO)-40, Tumble Generator
Valve Assembly.>
7 CHECK HARNESS BETWEEN ECM AND
TUMBLE GENERATOR VALVE POSITION
SENSORCONNECTOR.
1)Turn the ignition switch to OFF.
2)Measure the resistance of harness between
ECM connector and tumble generator valve
position sensor connector.
Connector & terminal
(8135) NO. 13 - (E50) NO. 3:
8 CHECK HARNESS BETWEEN ECM AND
TUMBLE GENERATOR VALVE POSITION
SENSOR CONNECTOR.
Measure the resistance of harness between
tumble generator valve position sensor connector and engine ground.
Connector & terminal
(€50) No. 3 - Engine ground:
9 CHECK POOR CONTACT.
Check poor contact in tumble generator valve
position sensor connector.
Check
s the voltage more than 4.5 V'
s the resistance less than 1
2?
s the resistance less than 10
2?
s there poor contact in tumble
lenerator valve position sensoi
:onnector?
EN(D0HC TURBO)-276
EN(D0HC TURBO)-277
DIAGNOSTIC PROCEDURE WITH DIAGNOSTIC TROUBLE CODE (DTC)
ENGINE (DIAGNOSTICS)
BW:DTC PI087 -TUMBLE GENERATOR VALVE #2 (LH) POSITION SENSOR
DTC DETECTING CONDITION:
immediately at fault recognition
TROUBLE SYMPTOM:
Erroneous idling
Engine stalls.
Poor driving performance
CIRCUIT HIGH INPUT -
CAUTION:
After repair or replacement of faulty parts, conduct Clear Memory Mode and Inspection Mode .
WIRING DIAGRAM:
TUMBLE GENERATOR VALVE
POSITION SENSOR
@ ECM U
EN1162
EN( DOHC TU RB0)-278
DIAGNOSTIC PROCEDURE WITH DIAGNOSTIC TROUBLE CODE (DTC)
ENGINE (DIAGNOSTICS)
Check
s the value more than 4.9 V?
!
Yes
Go to step 2.
~~
Step
CHECK CURRENT DATA.
1)Start the engine.
2)Read the data of tumble generator valve
position sensor signal using Subaru Select
Monitor or OBD-ll general scan tool.
NOTE:
*Subaru Select Monitor
For detailed operation procedure, refer to the
“READ CURRENT DATA FOR ENGINE”.
to EN(D0HC TURBO)-38, Subaru Select Monitor.>
*OBD-ll general scan tool
For detailed operation procedures, refer to the
OBD-II General Scan Tool Instruction Manual.
s the resistance less than 5
3?
CHECK HARNESS BETWEEN TUMBLE
GENERATOR VALVE POSITION SENSOR
4ND ECM CONNECTOR.
1)Turn the ignition switch to OFF.
2)Disconnect the connector from tumble generator valve position sensor.
3)Measure the resistance of harness between
throttle position sensor connector and engine
ground.
Connector & terminal
(€50) No. 2 - Engine ground:
Go to step 3.
I CHECK HARNESS BETWEEN TUMBLE
GENERATOR VALVE POSITION SENSOR
AND ECM CONNECTOR.
1)Turn the ignition switch to ON.
2)Measure the voltage between throttle position sensor connector and engine ground.
(€50) No. 3 (+) - Engine ground (-):
Connector & terminal
short circuit in harness between tumble generator valve
position sensor
and ECM connector. After repair,
replace the ECM.
Engine Control
Module.>
TURBO)-47,
No Even if MIL lights
up, the circuit has
returned to a normal condition at
this time. A temporary poor contact
Df the connector
may be the cause.
NOTE:
In this case, repair
the following:
b Poor contact in
tumble generator
valve position sensor connector
b Poor contact in
ECM connector
Poor contact in
soupling connectot
Repair harness
and connector.
NOTE:
In this case, repair
the following:
b Open circuit in
harness between
tumble generator
valve position sensor and ECM connector
b Poor contact in
soupling connector
b Poor contact in
ioint connector
Replace the tumble generator valve
assembly. FU(D0HC
TURBO)-40, Tumble Generator
Valve Assembly.>
EN(D0HC TURBO)-279
DIAGNOSTIC PROCEDURE WITH DIAGNOSTIC TROUBLE CODE (DTC)
ENG I N E (DIAGNOSTICS)
BX: DTC PI088 -TUMBLE GENERATOR VALVE #I (RH) POSITION SENSOR
CIRCUIT LOW INPUT -
DTC DETECTING CONDITION:
Immediately at fault recognition
TROUBLE SYMPTOM:
Erroneous idling
Engine stalls.
Poor driving performance
CAUTION:
After repair or replacement of faulty parts, conduct Clear Memory Mode and Inspection Mode .
WIRING DIAGRAM:
TUMBLE GENERATOR VALVE
POSITION SENSOR
EN1 163
EN(D0HC TURBO)-280
DIAGNOSTIC PROCEDURE WITH DIAGNOSTIC TROUBLE CODE (DTC)
ENGINE (DIAGNOSTICS)
Step
I CHECK CURRENT DATA.
1)Start the engine.
2)Read the data of tumble generator valve
position sensor signal using Subaru Select
Monitor or OBD-II general scan tool.
NOTE:
*Subaru Select Monitor
For detailed operation procedure, refer to the
“READ CURRENT DATA FOR ENGINE”.
to EN(D0HC TURBO)-38, Subaru Select Mon
itor.>
*OBD-II general scan tool
For detailed operation procedures, refer to the
OBD-II General Scan Tool Instruction Manual.
! CHECK INPUT SIGNAL FOR ECM.
Measure the voltage between ECM connector
and chassis ground while throttle valve is fully
clised.
Connector & terminal
(8135) No. 9 (+) - Chassis ground (-):
CHECK INPUT SIGNAL FOR ECM.
Measure the voltage between ECM connector
and chassis ground.
I
Connector & terminal
(6135) No. 9 (+) - Chassis ground (-):
I CHECK INPUT SIGNAL FOR ECM.
Measure the voltage between ECM connector
and chassis ground.
Connector & terminal
(8135) No. 23 (+) - Chassis ground (-):
1 CHECK INPUT SIGNAL FOR ECM. (USING
SUBARU SELECT MONITOR.)
Measure the voltage between ECM connector
and chassis ground.
Check
the value less than 0.1 V?
the voltage more than 4.5 V?
)es the voltage change more
%n 4.5 V by shaking harness
d connector of ECM while
mitoring the value with volte meter?
the voltage less than 0.1 V?
)es the voltage change more
%n 0.1 V by shaking harness
d connector of ECM while
mitoring the value with SubJ Select Monitor?
Yes
20 to step 2.
30 to step 4.
3epair poor conact in ECM conlector.
;o to step 6.
3epair poor conact in ECM conlector.
No Even if MIL lights
up, the circuit has
returned to a normal condition at
this time. A temporary poor contact
of the connector
may be the cause.
NOTE:
In this case, repaii
the following:
Poor contact in
tumble generator
valve position sensor connector
8 Poor contact in
ECM connector - Poor contact in
coupling connectoi
Go to step 3.
Contact with SOA
(distributor) service.
NOTE:
Inspection by DTM
is required, be.
cause probable
cause is deteriora.
tion of multiple
parts.
Go to step 5.
Go to step 6.
EN(D0HC TURBO)-281
DIAGNOSTIC PROCEDURE WITH DIAGNOSTIC TROUBLE CODE (DTC)
ENGINE (DIAGNOSTICS)
Step Check
resistance less than 1
SENSOR CONNECTOR.
1)Turn the ignition switch to OFF.
2)Measure the resistance of harness between
ECM connector and tumble generator valve
position sensor connector.
Connector & terminal
(8135) NO. 23 - (E54) NO. 3:
Yes
30 to step 7.
20 to step 8.
3epair ground
;hort circuit in harless between tumile generator valve
iosition sensor
and ECM connecor.
No Repair harness
and connector.
NOTE:
In this case, repai
the following:
Open circuit in
harness between
tumble generator
valve position sensor and ECM connector
Poor contact in
tumble generator
valve position sensor connector
Poor contact in
ECM connector
Poor contact in
coupling connect0
Poor contact in
joint connector
Repair harness
and connector.
NOTE:
In this case, repai
the following:
Open circuit in
harness between
tumble generator
valve position sensor and ECM connector
Poor contact in
ECM connector
Poor contact in
tumble generator
valve position sensor connector
Poor contact in
coupling connectoi
Go to step 9.
CHECK HARNESS BETWEEN ECM AND
TUMBLE GENERATOR VALVE POSITION
SENSOR CONNECTOR.
1)Turn the ignition switch to OFF.
2)Disconnect the connectors from tumble generator valve position sensor.
3)Turn the ignition switch to ON.
4)Measure the voltage between throttle position sensor connector and engine ground.
(E54) No. 1 (+) - Engine ground (-):
Connector & terminal
3epair poor conact in tumble gen?rator valve
iosition sensor
:onnector.
I Is the voltage more than 4.5 VI;
Replace the tumble generator valve
assembly. FU(D0HC
TURBO)-40, Tumble Generator
Valve Assembly.>
CHECK HARNESS BETWEEN ECM AND
TOR.
Measure the resistance of harness between
tumble generator valve position sensor connector and engine ground.
Connector & terminal
CHECK POOR CONTACT.
Check poor contact in tumble generator valve
position sensor connector.
THROlTLE POSITION SENSOR CONNEC-
(E54) No. 3 - Engine ground:
EN(D0HC TURBO)-282
IS the resistance less than 10
Q?
Is there poor contact in tumble
generator valve position sensor
connector?
DIAGNOSTIC PROCEDURE WITH DIAGNOSTIC TROUBLE CODE (DTC)
ENGINE (DIAGNOSTICS)
EN(D0HC TURBO)-283
DIAGNOSTIC PROCEDURE WITH DIAGNOSTIC TROUBLE CODE (DTC)
ENGINE (DIAGNOSTICS)
~~
BY:DTC PI089 - TUMBLE GENERATOR VALVE #I (RH) POSITION SENSOR
DTC DETECTING CONDITION:
Immediately at fault recognition
TROUBLE SYMPTOM:
Erroneous idling
Engine stalls.
Poor driving performance
CIRCUIT HIGH INPUT -
CAUTION:
After repair or replacement of faulty parts, conduct Clear Memory Mode and Inspection Mode .
WIRING DIAGRAM:
TUMBLE GENERATOR VALVE
POSITION SENSOR
@ ECM U
" -
EN( DOHC TU RB0)-284
DIAGNOSTIC PROCEDURE WITH DIAGNOSTIC TROUBLE CODE (DTC)
ENGINE (DIAGNOSTICS)
I
Step
CHECK CURRENT DATA.
1)Start the engine.
2)Read the data of tumble generator valve
position sensor signal using Subaru Select
Monitor or OBD-ll general scan tool.
NOTE:
Gubaru Select Monitor
For detailed operation procedure, refer to the
“READ CURRENT DATA FOR ENGINE”.
to EN(D0HC TURBO)-38, Subaru Select Mon
itor.>
*OBD-ll general scan tool
For detailed operation procedures, refer to the
OBD-II General Scan Tool Instruction Manual.
2 CHECK HARNESS BETWEEN TUMBLE
GENERATOR VALVE POSITION SENSOR
AND ECM CONNECTOR.
1 !Turn the ignition switch to OFF.
2)Disconnect the connector from tumble generator valve position sensor.
3)Measure the resistance of harness between
tumble generator valve position sensor connector and engine ground.
Connector & terminal
(E54) No. 2 - Engine ground:
B CHECK HARNESS BETWEEN TUMBLE
GENERATOR VALVE POSITION SENSOR
AND ECM CONNECTOR.
1)Turn the ignition switch to ON.
2)Measure the voltage between tumble generator valve position sensor connector and
engine ground.
Connector & terminal
(E54) No. 3 (+) - Engine ground (-):
Check
s the value more than 4.9 V?
s the resistance less than 5
2?
s the voltage more than 4.9 V?
Yes
20 to step 2.
30 to step 3.
3epai r battery
;hort circuit in harless between tum)le generator valve
)osition sensor
ind ECM connecor. After repair,
eplace the ECM.
:Ref. to FU(D0HC
ingine Control
Aodule.>
-URBO)-47,
No Even if MIL lights
up, the circuit has
returned to a normal condition at
this time. A tempo
rary poor contact
of the connector
may be the cause
NOTE:
In this case, repai
the following:
Poor contact in
tumble generator
valve position sen
sor connector
Poor contact in
ECM connector
Poor contact in
coupling connectc
Repair harness
and connector.
NOTE:
In this case, repai
the following:
Open circuit in
harness between
tumble generator
valve position sen.
sor and ECM connector
8 Poor contact in
coupling connect0
Poor contact in
joint connector
Replace the tumble generator valve
assembly. FU(D0HC
TURBO)-40, Tumble Generator
Valve Assembly.>
EN( DOHC TU RBO)-285
DIAGNOSTIC PROCEDURE WITH DIAGNOSTIC TROUBLE CODE (DTC)
ENGINE (DIAGNOSTICS)
Step
1 CHECK ANY OTHER DTC ON DISPLAY.
2 FHECK TUMBLE GENERATOR VALVE RH
1)Remove the tumble generator valve assembly.
2)Check tumble generator valve body.
BZ:DTC P1090 -TUMBLE GENERATOR VALVE SYSTEM #1 (RH) MALFUNC-
DTC DETECTING CONDITION:
CAUTION:
After repair or replacement of faulty parts, conduct Clear Memory Mode and Inspection Mode .
TION (STUCK OPEN) -
immediately at fault recognition
Check Yes
Does the Subaru Select Moni- Inspect DTC
tor or OBD-ll general scan tool P1088, P1089,
indicate P1088, P1089, P1094 PI094 or PI095
or P I 095? using List of Diagnostic Trouble
Code (DTC) to EN(D0HC
TURBO)-80, List
of Diagnostic Trouble Code (DTC).>
Does the tumble generator Replace the tumvalve move smoothly? (No dirt ble generator valve
or foreign materials clogged) assembly. FU(D0HC
TURBO)-40, Tumble Generator
Valve Assembly.>
No Go to step 2.
Clean tumble generator valve.
EN(D0HC TURBO)-286
DIAGNOSTIC PROCEDURE WITH DIAGNOSTIC TROUBLE CODE (DTC)
ENGINE (DIAGNOSTICS)
Check
Does the Subaru Select Monitor or OBD-ll general scan tool
indicate P I 088, P I 089, P I 094
or P1095?
Does the tumble generator
valve move smoothly? (No dirt
or foreign materials clogged)
CA:DTC PI091 -TUMBLE GENERATOR VALVE SYSTEM #I (RH) MALFUNC-
TION (STUCK CLOSE) -
DTC DETECTING CONDITION:
CAUTION:
After repair or replacement of faulty parts, conduct Clear Memory Mode and Inspection Mode Yes
Inspect DTC
P I 088, P I 089,
P I 094 or P I 095
using List of Diagnostic Trouble
Code (DTC) to EN(D0HC
TURBO)-80, List
of Diagnostic Trouble Code (DTC).>
Replace the tumble generator valve
assembly. FU( DOHC
TURBO)-40, Tumble Generator
Valve Assemblw
tion Mode.>.
Step
1 CHECK ANY OTHER DTC ON DISPLAY.
2 CHECK TUMBLE GENERATOR VALVE RH
1 )Remove the tumble generator valve assembly.
2)Check tumble generator valve body.
No Go to step 2.
Clean tumble generator valve.
EN( DOHC TURB0)-287
DIAGNOSTIC PROCEDURE WITH DIAGNOSTIC TROUBLE CODE (DTC)
ENGINE (DIAGNOSTICS)
Check
Does the Subaru Select Monitor or OBD-ll general scan tool
indicate P1086, P1087, P1096
or P1097?
Does the tumble generator
valve move smoothly? (No dirt
or foreign materials clogged)
CB:DTC PI092 -TUMBLE GENERATOR VALVE SYSTEM #2 (LH) MALFUNC-
DTC DETECTING CONDITION:
CAUTION:
After repair or replacement of faulty parts, conduct Clear Memory Mode and Inspection Mode .
TION (STUCK OPEN) -
Immediately at fault recognition
Yes
Inspect DTC
P1086, P1087,
P1096 or P I 097
using List of Diagnostic Trouble
Code (DTC) to EN(D0HC
TURBO)-80, List
of Diagnostic Trouble Code (DTC).>
Replace the tumble generator valve
assembly. FU(D0HC
TURBO)-40, Tumble Generator
Valve Assembly.>
Step
1 CHECK ANY OTHER DTC ON DISPLAY.
2 CHECK TUMBLE GENERATOR VALVE RH
‘1)Remove the tumble generator valve assembly.
2)Check tumble generator valve body.
No Go to step 2.
:lean tumble gensrator valve.
EN(D0HC TURBO)-288
DIAGNOSTIC PROCEDURE WITH DIAGNOSTIC TROUBLE CODE (DTC)
ENGINE (DIAGNOSTICS)
Yes
Inspect DTC
P1086, P1087,
P1096 or P1097
using List of Diagnostic Trouble
Code (DTC) to EN(D0HC
TURBO)-80, List
of Diagnostic Trouble Code (DTC).>
Replace the tumble generator valve
assembly. FU(D0HC
TURBO)-40, Tumble Generator
Valve Assembly.>
CC:DTC PI093 -TUMBLE GENERATOR VALVE SYSTEM #2 (LH) MALFUNC-
TION (STUCK CLOSE) -
DTC DETECTING CONDITION:
CAUTION:
After repair or replacement of faulty parts, conduct Clear Memory Mode and Inspection Mode .
Immediately at fault recognition
No Go to step 2.
Clean tumble generator valve.
Step
1 CHECK ANY OTHER DTC ON DISPLAY.
2 CHECK TUMBLE GENERATOR VALVE RH
1)Remove the tumble generator valve assembly.
2)Check tumble generator valve body.
Check
3oes the Subaru Select Moni:or or OBD-II general scan tool
ndicate P1086, P1087, P1096
3r P1097?
Does the tumble generator
valve move smoothly? (No dirt
3r foreign materials clogged)
EN(D0HC TURBO)-289
DIAGNOSTIC PROCEDURE WITH DIAGNOSTIC TROUBLE CODE (DTC)
ENGINE (DIAGNOSTICS)
CD:DTC PI094 - TUMBLE GENERATOR VALVE CIRCUIT #I (OPEN CIRCUIT)
DTC DETECTING CONDITION:
CAUTION:
After repair or replacement of faulty parts, conduct Clear Memory Mode and Inspection Mode .
WIRING DIAGRAM:
-
Immediately at fault recognition
TUMBLE
GENERATOR VALVE
ACTUATOR RH
EN(D0HC TURBO)-290
DIAGNOSTIC PROCEDURE WITH DIAGNOSTIC TROUBLE CODE (DTC)
ENGINE (DIAGNOSTICS)
Check Step
CHECK HARNESS BETWEEN ECM AND
TUMBLE GENERATOR VALVE ACTUATOR
CONNECTOR.
1)Turn the ignition switch to OFF.
2)Disconnect the connector from tumble generator valve and ECM connector.
3)Measure the resistance between tumble
generator valve actuator and ECM connector.
Connector & terminal
(E55) NO. 1 - (B84) N0.4:
(E55) NO. 2 - (B84) NO.5:
Yes No
! CHECK POOR CONTACT.
Check poor contact in tumble generator valve
actuator connector.
s the resistance less than 1 Q? I Go to step 2.
s there poor contact in tumble rlepair poor conjenerator valve actuator con- tact in tumble genlector. erator valve
actuator connector.
Repair open circuit
between ECM and
tumble generator
valve connector.
NOTE:
In this case, repaii
the following:
Open circuit in
harness between
ECM and tumble
generator valve
actuator connector.
Poor contact in
coupling connector.
Replace the tumble generator valve
assembly. FU(D0HC
TURBO)-40, Tumble Generator
Valve Assembly.>
EN(D0HC TURBO)-291
DIAGNOSTIC PROCEDURE WITH DIAGNOSTIC TROUBLE CODE (DTC)
ENGINE (DIAGNOSTICS)
CE:DTC PI095 -TUMBLE GENERATOR VALVE CIRCUIT #I (OVERCURRENT)
DTC DETECTING CONDITION:
CAUTION:
After repair or replacement of faulty parts, conduct Clear Memory Mode and Inspection Mode .
WIRING DIAGRAM:
Immediately at fault recognition
TUMBLE
GENERATOR VALVE
ACTUATORRH
I
EN1 16r
EN(D0HC TURB0)-292
I
DIAGNOSTIC PROCEDURE WITH DIAGNOSTIC TROUBLE CODE (DTC)
ENGINE (DIAGNOSTICS)
Check
Is the voltage less than 5V?
Step
1 CHECK HARNESS BETWEEN ECM AND
TUMBLE GENERATOR VALVE ACTUATOR
CONNECTOR.
1)Turn the ignition switch to OFF.
2)Disconnect the connector from tumble generator valve connector.
3)Measure the voltage between tumble generator valve actuator and chassis ground.
Connector & terminal
(E55) No. 1 (+) - Chassis ground (-):
(€55) No. 2 1+J - Chassis around (4:
Yes No
Replace the tum- Repair battery
ble generator valve short circuit
assembly. FU(D0HC tumble generator
TURBO)-40, Tum- valve actuator.
ble Generator
Valve Assembly.>
EN(D0HC TURBO)-293
DIAGNOSTIC PROCEDURE WITH DIAGNOSTIC TROUBLE CODE (DTC)
ENGINE (DIAGNOSTICS)
CF:DTC PI096 - TUMBLE GENERATOR VALVE CIRCUIT #2 (OPEN CIRCUIT)
DTC DETECTING CONDITION:
CAUTION:
After repair or replacement of faulty parts, conduct Clear Memory Mode and Inspection Mode .
WIRING DIAGRAM:
-
Immediately at fault recognition
TUMBLE
GENERATOR VALVE
ACTUATOR LH
EN1 165
EN(D0HC TURBO)-294
DIAGNOSTIC PROCEDURE WITH DIAGNOSTIC TROUBLE CODE (DTC)
ENGINE (DIAGNOSTICS)
Check Yes
s the resistance less than 1 a? Go to step 2.
s there poor contact in tumble Repair poor conjenerator valve actuator con- tact in tumble genlector. erator valve
actuator connector.
Step
I CHECK HARNESS BETWEEN ECM AND
TUMBLE GENERATOR VALVE ACTUATOR
CONNECTOR.
1)Turn the ignition switch to OFF.
2)Disconnect the connector from tumble generator valve and ECM connector.
3)Measure the resistance between tumble
generator valve actuator and ECM connector.
Connector & terminal
(E5l) NO. 1 - (884) NO. 10:
(E5l) NO. 2 - (884) NO. 11:
No Repair open circuit
between ECM and
tumble generator
valve connector.
NOTE:
In this case, repaii
the following:
Open circuit in
harness between
ECM and tumble
generator valve
actuator connector.
Poor contact in
coupling connector.
Replace the tumble generator valve
assembly. FU(D0HC
TURBO)-40, Tumble Generator
Valve Assembly.>
2 CHECK POOR CONTACT.
Check poor contact in tumble generator valve
actuator connector.
EN(D0HC TURBO)-295
DIAGNOSTIC PROCEDURE WITH DIAGNOSTIC TROUBLE CODE (DTC)
ENGINE (DIAGNOSTICS)
CG:DTC PI097 -TUMBLE GENERATOR VALVE ClRCUlT#2 (OVERCURRENT)
DTC DETECTING CONDITION:
CAUTION:
After repair or replacement of faulty parts, conduct Clear Memory Mode and Inspection Mode .
WIRING DIAGRAM:
Immediately at fault recognition
TUMBLE
GENERATOR VALVE
ACTUATOR LH
m EN1165
EN(D0HC TURBO)-296
DIAGNOSTIC PROCEDURE WITH DIAGNOSTIC TROUBLE CODE (DTC)
ENGINE (DIAGNOSTICS)
Check Yes
Is the voltage less than 5V? Replace the tumble generator valve
assembly. FU(D0HC
TURBO)-40, Tumble Generator
Valve Assembly.>
Step
1 CHECK HARNESS BETWEEN ECM AND
TUMBLE GENERATOR VALVE ACTUATOR
CONNECTOR.
1)Turn the ignition switch to OFF.
2)Disconnect the connector from tumble generator valve connector.
3)Measure the voltage between tumble generator valve actuator and chassis ground.
Connector & terminal
(€51) No. 1 (+) - Chassis ground (-):
(E51) No. 2 (+) - Chassis ground (-):
No Repair battery
short circuit
between ECM and
tumble generator
valve actuator.
Step Check
1 CHECK ANY OTHER DTC ON DISPLAY. Does the Subaru Select Monitor or OBD-ll general scan tool
indicate DTC P11 lo?
CH:DTC PI110 - ATMOSPHERIC PRESSURE SENSOR CIRCUIT LOW INPUT
Yes
Replace the ECM.
Engine Control
Module.>
NOTE:
Atmospheric pressure sensor is buili
into ECM.
TURBO)-47,
DTC DETECTING CONDITION:
CAUTION:
After repair or replacement of faulty parts, conduct Clear Memory Mode and Inspection Mode Step Check
1 CHECK ANY OTHER DTC ON DISPLAY. Does the Subaru Select Monitor or OBD-II general scan tool
indicate DTC P1 1 1 l ?
Yes No
Replace the ECM. It is not necessary
Engine Control
Module.>
NOTE:
Atmospheric pressure sensor is built
into ECM.
TURBO)-47, P1111.
No It is not necessary
to inspect DTC
P1110.
CI: DTC P I 11 1 - ATMOSPHERIC PRESSURE SENSOR CIRCUIT HIGH INPUT
DTC DETECTING CONDITION:
CAUTION:
After repair or replacement of faulty parts, conduct Clear Memory Mode and Inspection Mode .
Two consecutive driving cycles with fault
EN( DOHC TU RB0)-297
DIAGNOSTIC PROCEDURE WITH DIAGNOSTIC TROUBLE CODE (DTC)
ENGINE (DIAGNOSTICS)
Step Check
1 CHECK ANY OTHER DTC ON DISPLAY. Does the Subaru Select Monitor or OED-ll general scan tool
indicate DTC PO1 06, PO1 07,
P0108, P1110 or P111 I ?
~
CJ:DTC P I 112 - ATMOSPHERIC PRESSURE SENSOR CIRCUIT RANGWPER-
FORMANCE PROBLEM -
DTC DETECTING CONDITION:
CAUTION:
After repair or replacement of faulty parts, conduct Clear Memory Mode and Inspection Mode .
Two consecutive driving cycles with fault
Yes
Inspect DTC
PO1 06, PO1 07,
PO1 08, P1110 or
P I 11 1 using “List
of Diagnostic Trouble Code
(DTC)”. EN(D0HC
TURBO)-80, List
of Diagnostic Trouble Code (DTC).>
No Replace the ECM.
Engine Control
Module.>
NOTE:
Atmospheric pres
sure sensor is buill
into ECM.
TURBO)-47,
EN(D0HC TURBO)-298
DIAGNOSTIC PROCEDURE WITH DIAGNOSTIC TROUBLE CODE (DTC)
ENGINE (DIAGNOSTICS)
EN(D0HC TURBO)-299
DIAGNOSTIC PROCEDURE WITH DIAGNOSTIC TROUBLE CODE (DTC)
ENGINE (DIAGNOSTICS)
CK: DTC P I 130 - FRONT OXYGEN (NF) SENSOR CIRCUIT MALFUNCTION
(OPEN CIRCUIT) -
DTC DETECTING CONDITION:
CAUTION:
After repair or replacement of faulty parts, conduct Clear Memory Mode and Inspection Mode .
WIRING DIAGRAM:
Immediately at fault recognition
I
-
FN1 1 43
EN(D0HC TURBO)-300
DIAGNOSTIC PROCEDURE WITH DIAGNOSTIC TROUBLE CODE (DTC)
ENGINE (DIAGNOSTICS)
Step
CHECK HARNESS BETWEEN ECM AND
TOR.
1)Turn the ignition switch to OFF.
2)Disconnect the connectors from ECM and
front oxygen (NF) sensor connector.
3)Measure the resistance of harness between
ECM and front oxygen (NF) sensor connector.
FRONT OXYGEN ( N F ) SENSOR CONNEC-
Connector & terminal
(8137) NO. 29 - (818) NO. 3:
(8137) NO. 19 - (818) NO. 4:
CHECK POOR CONTACT.
Check poor contact in front oxygen (NF) sensor connector.
Check
Is the resistance less than 1
a? Is there poor contact in front
oxygen (NF) sensor connector?
Yes
Go to step 2.
3epair poor conact in front oxygen
NF) sensor conlector.
No Repair harness
and connector.
NOTE:
In this case, repaii
the following:
Open circuit in
harness between
ECM and front
oxygen (NF) sensor connector
Poor contact in
front oxygen (NF)
sensor connector
9 Poor contact in
ECM connector
Replace the front
oxygen (NF) sensor. FU(D0HC
TURBO)-42, Front
Oxygen (NF) Sen,
sor.>
EN(D0HC TURBO)-301
DIAGNOSTIC PROCEDURE WITH DIAGNOSTIC TROUBLE CODE (DTC)
ENGINE (DIAGNOSTICS)
CL: DTC P I 131 - FRONT OXYGEN (NF) SENSOR CIRCUIT MALFUNCTION
DTC DETECTING CONDITION:
CAUTION:
After repair or replacement of faulty parts, conduct Clear Memory Mode and Inspection Mode .
WIRING DIAGRAM:
(SHORT CIRCUIT) -
Immediately at fault recognition
MAIN RELAY BATTERY
SBF-5 3 c
EN1143
EN(D0HC TURBO)-302
DIAGNOSTIC PROCEDURE WITH DIAGNOSTIC TROUBLE CODE (DTC)
ENG IN E (DIAGNOSTICS)
Step
CHECK HARNESS BETWEEN ECM AND
FRONT OXYGEN (NF) SENSOR CONNEC-
TOR.
1)Turn the ignition switch to OFF.
2)Disconnect the connector from ECM.
3)Measure the resistance of harness between
ECM connector and chassis ground.
Connector & terminal
(8137) No. 19 - Chassis ground:
CHECK HARNESS BETWEEN ECM AND
FRONT OXYGEN ( A F ) SENSOR CONNEC-
TOR.
Measure the resistance of harness between
ECM connector and chassis ground.
Connector & terminal
(8137) No. 29 - Chassis ground:
CHECK OUTPUT SIGNAL FOR ECM.
1)Connect the connector to ECM.
2)Turn the ignition switch to ON.
3)Measure the voltage between ECM connector and chassis ground.
Connector & terminal
(8137) No. 19 (+) - Chassis ground (-):
CHECK OUTPUT SIGNAL FOR ECM.
Measure the voltage between ECM connector
and chassis ground.
Connector & terminal
(8137) No. 19 (+) - Chassis ground (-):
CHECK OUTPUT SIGNAL FOR ECM.
Measure the voltage between ECM connector
and chassis ground.
Connector & terminal
(6137) No. 29 (+) - Chassis ground (-):
CHECK OUTPUT SIGNAL FOR ECM.
Measure the voltage between ECM connector
and chassis ground.
Connector & terminal
(8 137) No. 29 (+) - Chassis ground (-):
Check
the resistance more than 10
?
the resistance more than 10
?
the voltage more than 4.5 V?
the voltage more than 10 V?
the voltage more than 4.95
b the voltage more than 10 V?
Yes
Go to step 2.
Go to step 3.
Go to step 4.
Repair battery
short circuit in harness between
ECM and front
oxygen (NF) sensor connector.
Go to step 6.
Repair battery
short circuit in harnessbetween
ECM and front
oxygen (NF) sensor connector.
No Repair ground
short circuit in har
ness between
ECM and front
oxygen (NF) sensor connector.
Repair ground
short circuit in har
ness between
ECM and front
oxygen (NF) sensor connector.
Go to step 5.
Repair poor contact in ECM connector.
Replace the front
oxygen (NF) sensor. FU(D0HC
TURBO)-42, Froni
Oxygen (NF) Sen
sor.>
Repair poor contact in ECM connector.
EN(D0HC TURBO)-303
DIAGNOSTIC PROCEDURE WITH DIAGNOSTIC TROUBLE CODE (DTC)
ENGINE (DIAGNOSTICS)
Step
1 CHECK ANY OTHER DTC ON DISPLAY.
CM:DTC PI134 - FRONT OXYGEN (NF) SENSOR MICRO-COMPUTER PROB-
DTC DETECTING CONDITION:
CAUTION:
After repair or replacement of faulty parts, conduct Clear Memory Mode and Inspection Mode .
WIRING DIAGRAM:
LEM -
Immediately at fault recognition
Check Yes No
Does the Subaru Select Moni- Replace the ECM. I It is not necessarv
tor or OBD-II general scan tool
indicate DTC P1134?
TURBO)-47, P1134.
Engine Control
Module.>

EN(D0HC TURBO)-304
DIAGNOSTIC PROCEDURE WITH DIAGNOSTIC TROUBLE CODE (DTC)
ENGINE (DIAGNOSTICS)
EN(D0HC TURBO)-305
DIAGNOSTIC PROCEDURE WITH DIAGNOSTIC TROUBLE CODE (DTC)
ENGINE (DIAGNOSTICS)
CN: DTC P I 139 - FRONT OXYGEN (NF) SENSOR #I HEATER CIRCUIT
DTC DETECTING CONDITION:
CAUTION:
After repair or replacement of faulty parts, conduct Clear Memory Mode and Inspection Mode .
WIRING DIAGRAM:
RANGUPERFORMANCE PROBLEM -
Two consecutive driving cycles with fault
w FRONTOXYGEN
EN(D0HC TURBO)-306
DIAGNOSTIC PROCEDURE WITH DIAGNOSTIC TROUBLE CODE (DTC)
ENGINE (DIAGNOSTICS)
30 to step 3.
Step
CHECK HARNESS BETWEEN ECM AND
FRONT OXYGEN (NF) SENSOR CONNEC-
TOR.
1)Start the engine, and warm-up the engine.
2)Turn the ignition switch to OFF.
3)Disconnect the connectors from ECM and
front oxygen (NF) sensor.
4)Measure the resistance of harness between
ECM and front oxygen (NF) sensor connector.
Connector & terminal
(8137) NO. 5 - (818) NO. 1:
(8137) NO. 4 - (818) NO. 1:
I CHECK HARNESS BETWEEN ECM AND
FRONT OXYGEN ( N F ) SENSOR CONNEC-
TOR.
Measure the resistance of harness between
ECM and front oxygen (NF) sensor connector.
Connector & terminal
(8137) NO. 19 - (818) NO. 4:
(8137) NO. 29 - (818) NO. 3:
I CHECK HARNESS BETWEEN ECM AND
FRONT OXYGEN ( N F ) SENSOR CONNEC-
TOR.
Measure the resistance of harness between
main relay and front oxygen (NF) sensor connector.
Connector & terminal
(847) NO. 4 - (818) NO. 2:
I CHECK FRONT OXYGEN (NF) SENSOR.
Measure the resistance between front oxygen
(NF) sensor connector terminals.
Terminals
NO. 2 -NO. 1:
Repair open circuit
in harness
between ECM and
front oxygen (NF)
sensor connector.
i CHECK POOR CONTACT.
Check poor contact in ECM and front oxygen
(NF) sensor connector.
30 to step 4.
30 to step 5.
Repair poor contact in ECM or
iront oxygen (NF)
sensor connector.
Check
Repair open circuil
in harness
between ECM and
front oxygen (NF)
sensor connector.
Replace the front
oxygen (NF) sensor. FU( DOHC
TURBO)-42, Front
Oxygen (NF) Sen
sor.>
Replace the front
oxygen (NF) sensor. FU(D0HC
TURBO)-42, Fronl
Oxygen (NF) Sen
sor.>
s the resistance less than 1
L?
s the resistance less than 1
2?
s the resistance less than 1
2?
s the resistance less than 5
2?
s there poor contact in ECM or
ront oxygen (NF) sensor conlector?
EN(D0HC TURBO)-307
in harness
between ECM and
front oxygen (NF)
sensor connector.
I
DIAGNOSTIC PROCEDURE WITH DIAGNOSTIC TROUBLE CODE (DTC)
ENGINE (DIAGNOSTICS)
C0:DTC P I 141 - MASS AIR FLOW SENSOR CIRCUIT RANGWPERFORMANCE
DTC DETECTING CONDITION:
Two consecutive driving cycles with fault
TROUBLE SYMPTOM:
Erroneous idling
Engine stalls.
Poor driving performance
PROBLEM (LOW INPUT) -
CAUTION:
After repair or replacement of faulty parts, conduct Clear Memory Mode and Inspection Mode .
WIRING DIAGRAM:
IAlN RELAY
BATTERY
SBF-5
MASS AIR FLOW AND
INTAKE AIR TEMPERATURE
4
ECM
I
EN(D0HC TU R BO)-308
DIAGNOSTIC PROCEDURE WITH DIAGNOSTIC TROUBLE CODE (DTC)
ENGINE (DIAGNOSTICS)
Step Check Yes No
Replace the mass
air flow and intake
air temperature
sensor.
CHECK ANY OTHER DTC ON DISPLAY. I Does Subaru select monitor or
OBD-II general scan tool indicate DTC PO1 02 or PO1 03?
EN(D0HC TURBO)-309
Inspect DTC
PO1 02 or PO1 03
using “Diagnostics Chart with
Trouble Code”
TURBO)-80, List
of Diagnostic Trouble Code (DTC).>
NOTE:
In this case, it is
not necessary tc
inspect DTC
P I 141.
DIAGNOSTIC PROCEDURE WITH DIAGNOSTIC TROUBLE CODE (DTC)
ENGINE (DIAGNOSTICS)
CP:DTC P I 142 - THROTTLE POSITION SENSOR CIRCUIT RANGUPERFOR-
DTC DETECTING CONDITION:
Two consecutive driving cycles with fault
TROUBLE SYMPTOM:
Erroneous idling
Engine stalls.
Poor driving performance
MANCE PROBLEM (LOW INPUT) -
CAUTION:
After repair or replacement of faulty parts, conduct Clear Memory Mode and Inspection Mode .
WIRING DIAGRAM:
THROTTLE
POSITION
SENSOR
[
1
I
I
I
@ ECM 0
ml 5 6 7 8
EN1 166
EN(D0HC TURBO)-310
DIAGNOSTIC PROCEDURE WITH DIAGNOSTIC TROUBLE CODE (DTC)
ENGINE (DIAGNOSTICS)
Check
Does the Subaru Select Monitor or OBD-II general scan tool
indicate DTC PO122 or P0123?
Step
1 CHECK ANY OTHER DTC ON DISPLAY.
Yes
Inspect DTC
PO1 22 or PO1 23
using “List of Diagnostic Trouble
Code (DTC)”.
TURBO)-80, List
of Diagnostic Trouble Code (DTC).>
NOTE:
In this case, it is
not necessary to
inspect DTC
P1142.
No Replace the throttle position sensor. FU(D0HC
Throttle Position
Sensor. >
TURBO)-33,
EN(D0HC TURBO)-31 1
DIAGNOSTIC PROCEDURE WITH DIAGNOSTIC TROUBLE CODE (DTC)
ENG IN E (DIAGNOSTICS)
~
CQ:DTC P1146 - PRESSURE SENSOR CIRCUIT RANGE/PERFORMANCE
PROBLEM (HIGH INPUT) -
DTC DETECTING CONDITION:
CAUTION:
After repair or replacement of faulty parts, conduct Clear Memory Mode and Inspection Mode .
WIRING DIAGRAM:
Two consecutive driving cycles with fault
THROTTLE BODY
@ ECM U
EN1146
EN(D0HC TURBO)-312
DIAGNOSTIC PROCEDURE WITH DIAGNOSTIC TROUBLE CODE (DTC)
ENGINE (DIAGNOSTICS)
Check
loes the Subaru Select Monior or OBD-ll general scan tool
ndicate DTC PO1 07, PO108 or
’1 112?
4re there holes, loose bolts or
lisconnection of hose on air
ntake system?
s the value within the specifiStep
CHECK ANY OTHER DTC ON DISPLAY.
NOTE:
In this case, it is not necessary to inspect DTC
PO1 06.
Yes
Inspect DTC
PO107, PO108 or
P1112 using “List
of Diagnostic Trou
ble Code (DTC)”.
TURBO)-80, List
of Diagnostic Trou
ble Code (DTC).>
Repair air intake
system.
Go to step 4.
CHECK AIR INTAKE SYSTEM.
s the throttle positioning ratio
CHECK PRESSURE SENSOR.
1)Start the engine and warm-up engine until
coolant temperature is greater than 60°C
(1 40°F).
2)Place the shift lever in the selector lever in
“N” or “ P position.
3)Turn the N C switch to OFF.
4)Turn all accessory switches to OFF.
5)Read the data of pressure sensor signal
using Subaru Select Monitor or OBD-ll general
scan tool.
NOTE:
*Subaru Select Monitor
For detailed operation procedure, refer to the
“READ CURRENT DATA FOR ENGINE.
to EN(D0HC TURBO)-38, Subaru Select Mom
itor.>
*OBD-II general scan tool
For detailed operation procedure, refer to the
OBD-II General Scan Tool Instruction Manual.
Specification:
*Intake manifold absolute pressure
Ignition ON
73.3 - 106.6 kPa (550 - 800 mmHg,
21.65 - 31.50 inHg)
20.0 - 46.7 kPa (150 - 350 mmHg,
5.91 - 13.78 inHg)
idling
CHECK THROTTLE POSITION.
Read the data of throttle position signal using
Subaru Select Monitor or OBD-ll general scan
tool.
NOTE:
*Subaru Select Monitor
For detailed operation procedure, refer to the
“READ CURRENT DATA FOR ENGINE”.
to EN(D0HC TURBO)-38, Subaru Select Monitor.>
*OBD-ll general scan tool
For detailed operation procedure, refer to the
OBD-ll General Scan Tool Instruction Manual.
CHECK THROTTLE POSITION.
Go to step 5.
s the throttle positioning ratio
?qual to or more than 85%
vhen throttle is fully open?
Replace the pressure sensor. to FU(D0HC
TURBO)-35, Pressure Sensor.>
No 30 to step 2.
30 to step 3.
3eplace the presiure sensor. o FU(D0HC
rURBO)-35, Pres.
;ure Sensor.>
idjust or replace
he throttle posiion sensor. o FU(D0HC
-hrottle Position
;ensor.>
-URBO)-33,
Ieplace the throtle position sen;or. ’U(D0HC
-hrottle Position
;ensor.>
-U RB0)-33,
EN(D0HC TURBO)-313
DIAGNOSTIC PROCEDURE WITH DIAGNOSTIC TROUBLE CODE (DTC)
ENGINE (DIAGNOSTICS)
CR:DTC P1230 - FUEL PUMP CONTROLLER MALFUNCTION -
DTC DETECTING CONDITION:
CAUTION:
After repair or replacement of faulty parts, conduct Clear Memory Mode and Inspection Mode .
WIRING DIAGRAM:
Two consecutive driving cycles with fault
FUEL PUMP
CONTROLLER
ECM
A : @
C : @
EN1141
EN(D0HC TURBO)-314
DIAGNOSTIC PROCEDURE WITH DIAGNOSTIC TROUBLE CODE (DTC)
ENGINE (DIAGNOSTICS)
Yes
io to step 2.
;o to step 3.
i o to step 4.
Step
CHECK POWER SUPPLY CIRCUIT TO FUEL
PUMP CONTROLLER.
1)Turn the ignition switch to OFF.
2)Disconnect the connector from fuel pump
controller.
3)Turn the ignition switch to ON.
4)Measure the voltage between fuel pump
controller and chassis ground.
Connector & terminal
(R122) No. 10 (+) - Chassis ground (-):
No Repair power supply circuit.
NOTE:
In this case repair
the following:
Open or ground
short circuit in harness between fuel
pump relay and
fuel pump controller.
Poor contact in
fuel pump controller connector.
Poor contact in
fuel pump relay
connector.
Repair harness
and connector.
NOTE:
In this case, repair
the following:
Open circuit
between fuel pump
controller and
chassis ground.
Poor contact in
fuel pump controller connector.
Repair open circuit
between fuel pump
controller and fuel
CHECK GROUND CIRCUIT OF FUEL PUMP
CONTROLLER.
1)Turn the ignition switch to OFF.
2)Measure the resistance of harness between
fuel pump controller and chassis ground.
Connector & terminal
(R122) No. 5 - Chassis ground:
i o to step 6.
CHECK HARNESS BETWEEN FUEL PUMP
CONTROLLER AND FUEL PUMP CONNEC-
TOR.
1)Disconnect the connector from fuel pump.
2)Measure the resistance of harness between
fuel pump controller and fuel pump connector.
Connector & terminal
(R122) NO. 7 - (R58) NO. 2:
(R122) NO. 6 - (R58) NO. 1:
CHECK HARNESS BETWEEN FUEL PUMP
CONTROLLER AND FUEL PUMP CONNEC-
TOR.
Measure the resistance of harness between
fuel pump controller and chassis ground.
(R122) No. 7 - Chassis ground:
(R122) No. 6 - Chassis ground:
Connector & terminal
CHECK HARNESS BETWEEN FUEL PUMP
CONTROLLER AND ECM CONNECTOR.
1)Turn the ignition switch to OFF.
2)Disconnect the connector from ECM.
3)Measure the resistance of harness between
fuel pump controller and ECM connector.
. Connector & terminal
(R122) NO. 9 - (8134) NO. 13:
(R122) NO. 8 - (8136) NO. 16:
Repair harness
and connector.
NOTE:
In this case, repair
the following:
Open circuit
between fuel pump
controller and
ECM.
Poor contact in
fuel pump controller and ECM connector.
Check
the voltage more than 1 OV?
the resistance less than 5
?
the resistance less than 1
?
the resistance more than 1 M
?
the resistance less than 1
?
short circuit
between fuel pump
controller and fuel
EN(D0HC TURBO)-31 5
DIAGNOSTIC PROCEDURE WITH DIAGNOSTIC TROUBLE CODE (DTC)
ENGINE (DIAGNOSTICS)
Check
Is the resistance more than 1 M
R?
Step
5 CHECK HARNESS BETWEEN FUEL PUMP
CONTROLLER AND ECM CONNECTOR.
Measure the resistance of harness between
fuel pump controller and chassis ground.
(R122) No. 9 - Chassis ground:
(R122) No. 8 - Chassis ground:
Connector & terminal
7 CHECK POOR CONTACT.
Check poor contact in ECM and fuel pump
controller connector.
Yes No
Repair ground
short circuit
between fuel pump
controller and
Go to step 7.
Is there poor contact in ECM
and fuel pump controller connector. fuel pump controlRepair poor contact in ECM and
ler.
EN(D0HC TURBO)-316
ECM.
Replace the fuel
pump controller.
TURBO)-50, Fuel
Pump Controller.>
DIAGNOSTIC PROCEDURE WITH DIAGNOSTIC TROUBLE CODE (DTC)
ENGINE (DIAGNOSTICS)
EN(D0HC TURBO)-317
DIAGNOSTIC PROCEDURE WITH DIAGNOSTIC TROUBLE CODE (DTC)
ENGINE (DIAGNOSTICS)
CS:DTC PI244 - WASTEGATE CONTROL SOLENOID VALVE RANGWPER-
FORMANCE PROBLEM (LOW INPUT) -
DTC DETECTING CONDITION:
CAUTION:
After repair or replacement of faulty parts, conduct Clear Memory Mode and Inspection Mode .
Two consecutive driving cycles with fault
WIRING DIAGRAM:
MAIN RELAY
BATTERY
SBF-5
WASTEGATE
CONTROL SOLENOID
VALVE
I
EN1150
EN(D0HC TURBO)-31 8
DIAGNOSTIC PROCEDURE WITH DIAGNOSTIC TROUBLE CODE (DTC)
ENGINE (DIAGNOSTICS)
Step
I CHECK ANY OTHER DTC ON DISPLAY.
Check Yes
Does the Subaru Select Moni- Inspect DTC
tor or OBD-ll general scan tool PO245 or PO246
indicate DTC PO245 or P0246? using “List of DiagNo Replace the
wastegate control
solenoid valve.
Wastegate Control Solenoid
Valve.>
TURBO)-41,
EN(D0HC TURBO)-31 9
DIAGNOSTIC PROCEDURE WITH DIAGNOSTIC TROUBLE CODE (DTC)
ENGINE (DIAGNOSTICS)
CT:DTC PI245 - WASTEGATE CONTROL SOLENOID VALVE MALFUNCTION
(FAIL-SAFE) -
DTC DETECTING CONDITION:
CAUTION:
After repair or replacement of faulty parts, conduct Clear Memory Mode and Inspection Mode .
WIRING DIAGRAM:
Immediately at fault recognition
MAIN RELAY
@ ECM
WAS
CONTRO
TE
LENOID
VALVE
.
EN1150
EN(D0HC TURBO)-320
DIAGNOSTIC PROCEDURE WITH DIAGNOSTIC TROUBLE CODE (DTC)
ENGINE I DIAGNOSTICS)
Step
CHECK ANY OTHER DTC ON DISPLAY.
Check Yes
Does the Subaru Select Moni- Inspect DTC
tor or OBD-II general scan tool P0244, P0245,
indicate DTC P0244, P0245, PO246 or P1244
PO246 or P 1244? using “List of Diagnostic Trouble
Code (DTC)”.
TURBO)SO, List
of Diagnostic Trouble Code (DTC).>
NOTE:
In this case, it is
not necessary to
inspect DTC
P1245.
No Replace the
wastegate control
solenoid valve.
Wastegate Control Solenoid
Valve.>
TURBO)-41,
EN( DOHC TU RB0)-321
DIAGNOSTIC PROCEDURE WITH DIAGNOSTIC TROUBLE CODE (DTC)
ENGINE (DIAGNOSTICS)
CU:DTC PI301 - FIRE DUE TO INCREASED EXHAUST TEMPERATURE -
DTC DETECTING CONDITION:
Immediately at fault recognition
TROUBLE SYMPTOM:
Erroneous idling
Engine stalls
Poor driving performance
CAUTION:
After repair or replacement of faulty parts, conduct Clear Memory Mode and Inspection Mode .
WIRING DIAGRAM:
EXHAUSTGAS
TEMPERATURE
SENSOR
7
@ ECM
EN1 161
EN(D0HC TURBO)-322
DIAGNOSTIC PROCEDURE WITH DIAGNOSTIC TROUBLE CODE (DTC)
ENGINE (DIAGNOSTICS)
Check
Does failure for repair or
replacement exist?
Step
1 CHECK ANY OTHER DTC.
Conduct the troubleshooting for all DTC
P0301, P0302, PO303 and P0304. EN(D0HC TURBO)-80, List of Diagnostic
Trouble Code (DTC).>
Yes No
Repair or replace
failure, then (distributor) serreplace the precat- vice.
alytic converter. NOTE:
Contact with SOA
Inspection by DTM
is required, because probable
cause is deterioration of multiple
parts.
EN(D0HC TURBO)-323
DIAGNOSTIC PROCEDURE WITH DIAGNOSTIC TROUBLE CODE (DTC)
ENGINE (DIAGNOSTICS)
CV:DTC PI312 - EXHAUST GAS TEMPERATURE CIRCUIT MALFUNCTION -
DTC DETECTING CONDITION:
CAUTION:
After repair or replacement of faulty parts, conduct Clear Memory Mode and Inspection Mode .
WIRING DIAGRAM:
Immediately at fault recognition
EXHAUSTGAS
TEMPERATURE
SENSOR
_I
7
EN1 161
EN( DOHC TU RB0)-324
DIAGNOSTIC PROCEDURE WITH DIAGNOSTIC TROUBLE CODE (DTC)
ENGINE (Dl AG NOSTl CS)
Step
1 CHECK ANY OTHER DTC ON DISPLAY.
Check
Does the Subaru Select Monitor or OBD-ll general scan tool
indicate DTC P0545, PO546 or
P 1 544?
Yes
Inspect DTC
P0545, PO546 or
P1544 using “List
of Diagnostic Trouble Code (DTC)”.
TURBO)-80, List
of Diagnostic Trouble Code (DTC).>
NOTE:
In this case, it is
not necessary tc
inspect DTC
P1312.
No Replace the
exhaust gas temperature sensor.
Exhaust Temperature Sensor.>
TURBO)-46,
EN(D0HC TURBO)-325
DIAGNOSTIC PROCEDURE WITH DIAGNOSTIC TROUBLE CODE (DTC)
ENGINE (DIAGNOSTICS)
Step
1 CHECK OUTPUT SIGNAL FROM ECM.
1)Turn the ignition switch to ON.
2)Measure the voltage between ECM and
chassis ground.
Connector & terminal
(8137) No. 22 (+) - Chassis ground (-):
CW:DTC PI400 - FUEL TANK PRESSURE CONTROL SOLENOID VALVE CIR-
CUIT LOW INPUT -
DTC DETECTING CONDITION:
CAUTION:
After repair or replacement of faulty parts, conduct Clear Memory Mode and Inspection Mode .
WIRING DIAGRAM:
Two consecutive driving cycles with fault
Check Yes No
Is the voltage more than 10 V? Go to step 2. Go to step 3.
MAIN RELAY
BATTERY
SBF-5 3 c
I
I
PRESSURE
CONTROL
SOLENOID
A:@ ECM 1 D:@ I
m EN(D0HC TURBO)-326
DIAGNOSTIC PROCEDURE WITH DIAGNOSTIC TROUBLE CODE (DTC)
ENGINE (DIAGNOSTICS)
Yes
lepair poor conact in ECM con'ector.
iepair ground
hort circuit in harless between
C M and fuel tank
lressure control
olenoid valve
onnector.
;o to step 5.
i o to step 6.
i o to step 7.
Step
CHECK POOR CONTACT.
Check poor contact in ECM connector.
No Contact with SOA
(distributor) service.
NOTE:
Inspection by DTk
is required, be,
cause probable
cause is deteriora,
tion of multiple
parts.
Go to step 4.
Repair harness
and connector.
NOTE:
In this case, repai
the following:
Open circuit in
harness between
ECM and fuel tank
pressure control
solenoid valve
connector
Poor contact in
coupling connectors
Replace the fuel
tank pressure con.
trol solenoid valve.
TURBO)-12, Pres.
sure Control Solenoid Valve.>
Repair harness
and connector.
NOTE:
In this case, repai
the following:
Open circuit in
harness between
main relay and fuel
tank pressure con,
trol solenoid valve
connector
Poor contact in
coupling connectors
Poor contact in
main relay connec
tor
CHECK HARNESS BETWEEN FUEL TANK
PRESSURE CONTROL SOLENOID VALVE
AND ECM CONNECTOR.
1)Turn the ignition switch to OFF.
2)Disconnect the connectors from fuel tank
pressure control solenoid valve and ECM.
3)Measure the resistance of harness between
fuel tank pressure control solenoid valve connector and chassis ground.
Connector & terminal
(R68) No. 2 - Chassis ground:
CHECK HARNESS BETWEEN FUEL TANK
PRESSURE CONTROL SOLENOID VALVE
AND ECM CONNECTOR.
Measure the resistance of harness between
ECM and fuel tank pressure control solenoid
valve connector.
Connector & terminal
(8137) NO. 22 - (R68) NO. 2:
CHECK FUEL TANK PRESSURE CONTROL
SOLENOID VALVE.
Measure the resistance between fuel tank
pressure control solenoid valve terminals.
Terminals
NO. 1 -NO. 2:
CHECK POWER SUPPLY TO FUEL TANK
PRESSURE CONTROL SOLENOID VALVE.
1)Turn the ignition switch to ON.
2)Measure the voltage between fuel tank pres
sure control solenoid valve and chassis
ground.
Connector & terminal
(R68) No. 1 (+) - Chassis ground (-):
Check
s there poor contact in ECM
:onnector?
s the resistance less than 10
2?
s the voltage less than 1 R?
s the resistance between 10
md 100 R?
s the voltage more than 10 V?
EN(D0HC TURBO)-327
DIAGNOSTIC PROCEDURE WITH DIAGNOSTIC TROUBLE CODE (DTC)
ENGINE (DIAGNOSTICS)
Step
7 CHECK POOR CONTACT.
Check poor contact in fuel tank pressure conCheck Yes
Is there poor contact in fuel Repair poor contank pressure control solenoid tact in fuel tank
trol solenoid valve connector. valve connector? pressure control
solenoid valve
No Contact with SOA
(distributor) service.
NOTE:
Inspection by DTM
is required, because probable
cause is deterioration of multiple
parts.
EN(D0HC TURBO)-328
DIAGNOSTIC PROCEDURE WITH DIAGNOSTIC TROUBLE CODE (DTC)
ENGINE (DIAGNOSTICS)
EN(D0HC TURBO)-329
DIAGNOSTIC PROCEDURE WITH DIAGNOSTIC TROUBLE CODE (DTC)
ENGINE (DIAGNOSTICS)
CX:DTC PI420 - FUEL TANK PRESSURE CONTROL SOLENOID VALVE CIR-
DTC DETECTING CONDITION:
CAUTION:
After repair or replacement of faulty parts, conduct Clear Memory Mode and Inspection Mode .
WIRING DIAGRAM:
CUIT HIGH INPUT -
Two consecutive driving cycles with fault
BATTERY
SBF-5 MAIN RELAY 3 c I
I
I 1
FUEL TANK
PRESSURE
C 0 N T R 0 L
SOLENOID
VALVE
EN(D0HC TURBO)-330
DIAGNOSTIC PROCEDURE WITH DIAGNOSTIC TROUBLE CODE (DTC)
ENGINE (DIAGNOSTICS)
Check Step
CHECK OUTPUT SIGNAL FROM ECM.
1)Turn the ignition switch to OFF.
2)Connect the test mode connector at the
lower portion of instrument panel (on the
driver’s side), to the side of the center console
box.
3)Turn the ignition switch to ON.
4)While operating the fuel tank pressure control solenoid valve, measure voltage between
ECM and chassis ground.
NOTE:
Fuel tank pressure control solenoid valve oper.
ation can be executed using Subaru Seleci
Monitor. For procedure, refer to “Compulsor)
Valve Operation Check Mode”. EN(D0HC TURBO)-50, Compulsory Valve O p
eration Check Mode.>
Connector & terminal
(8137) No. 22 (+) - Chassis ground (-):
! CHECK OUTPUT SIGNAL FROM ECM.
1)Turn the ignition switch to ON.
2)Measure the voltage between ECM and
chassis ground.
Connector & terminal
(8137) No. 22 (+) - Chassis ground (-):
1 CHECK POOR CONTACT.
Check poor contact in ECM connector.
Yes
CHECK HARNESS BETWEEN FUEL TANK
PRESSURE CONTROL SOLENOID VALVE
AND ECM CONNECTOR.
1)Turn the ignition switch to OFF.
2)Disconnect the connector from fuel tank
pressure control solenoid valve.
3)Turn the ignition switch to ON.
4)Measure the voltage between ECM and
chassis ground.
Connector & terminal
(8137) No. 22 (+) - Chassis ground (-):
)oes voltage change between
1 and 10 V?
1 CHECK FUEL TANK PRESSURE CONTROL
SOLENOID VALVE.
1)Turn the ignition switch to OFF.
2)Measure the resistance between fuel tank
pressure control solenoid valve terminals.
Terminals
NO. 1 -NO. 2:
I Go to step 2.
i CHECK POOR CONTACT.
Check poor contact in ECM connector.
s the voltage more than 10 V?
s the resistance less than 1
2?
s there poor contact in ECM
:onnector?
Repair battery
short circuit in har.
ness between
ECM and fuel tank
pressure control
solenoid valve
connector. After
repair, replace the
ECM. FU(D0HC
Engine Control
Module.>
Replace the fuel
tank pressure con,
trot solenoid valve
TURBO)-12, Pres
sure Control Solenoid Valve.> and
ECM FU(D0HC
Engine Control
Module.>
Repair poor contact in ECM connector.
TURBO)-47,
TURBO)-47,
s the voltage more than 10 V? So to step 4.
onnector? tact in ECM connector.
No 3en if MIL lights
rp, the circuit has
eturned to a nornal condition at
his time. In this
:ase, repair poor
:ontact in ECM
:onnector.
20 to step 3.
3eplace the ECM.
:Ref. to FU(D0HC
ru RBO)-47,
Engine Control
dodule.>
20 to step 5.
20 to step 6.
3eplace the ECM.
:Ref. to FU(D0HC
TURBO)-47,
Engine Control
vlodule.>
EN(D0HC TURBO)-331
DIAGNOSTIC PROCEDURE WITH DIAGNOSTIC TROUBLE CODE (DTC)
ENGINE (DIAGNOSTICS)
CY:DTC PI443 - EVAPORATIVE EMISSION CONTROL SYSTEM VENT CON-
TROL FUNCTION PROBLEM -
DTC DETECTING CONDITION:
Immediately after fault occurrence
TROUBLE SYMPTOM:
Improper fuel supply
CAUTION:
After repair or replacement of faulty parts, conduct Clear Memory Mode and Inspection Mode .
WIRING DIAGRAM:
MAIN RELAY
BATTERY
SBF-5 3 c -- I
I
I I
EN(D0HC TURBO)-332
DIAGNOSTIC PROCEDURE WITH DIAGNOSTIC TROUBLE CODE (DTC)
ENGINE (DIAGNOSTICS)
Step
I CHECK ANY OTHER DTC ON DISPLAY.
! CHECK VENT LINE HOSES.
Check the following items.
Clogging of vent hoses between canister and
drain valve
Clogging of vent hose between drain valve
and air filter
Clogging of drain filter
1)Turn the ignition switch to OFF.
2)Connect the test mode connector at the
lower portion of instrument panel (on the
driver’s side), to the side of the center console
box.
Spurn the ignition switch to ON.
4)Operate the drain valve.
NOTE:
Drain valve operation can also be executed using Subaru Select Monitor. For the procedure,
refer to the “Compulsory Valve Operation
Check Mode”. Compulsory Valve Operation Check Mode.>
b CHECK DRAIN VALVE OPERATION.
Check Yes
Is there any other DTC on dis- Inspect the releplay? vant DTC using
“List of Diagnostic
Trouble Code
(DTC)”. EN(D0HC
TURBO)-80, List
of Diagnostic Trouble Code (DTC).>
Repair or replace
the faulty part.
Is there a fault in vent line?
Does the drain valve produce
operating sound? (distributor) serContact with SOA
vice.
NOTE:
Inspection by DTM
is required, because probable
cause is deterioration of multiple
parts.
No 30 to step 2.
20 to step 3.
3eplace the drain
ialve. iC(D0HC
rURBO)-17, Drain
Ja1ve.b
EN(D0HC TURBO)-333
DIAGNOSTIC PROCEDURE WITH DIAGNOSTIC TROUBLE CODE (DTC)
ENGINE (DIAGNOSTICS)
EN(D0HC TURBO)-334
DIAGNOSTIC PROCEDURE WITH DIAGNOSTIC TROUBLE CODE (DTC)
ENGINE (DIAGNOSTICS)
CZ:DTC PI480 - COOLING FAN RELAY 1 CIRCUIT HIGH INPUT -
DTC DETECTING CONDITION:
TROUBLE SYMPTOM:
Two consecutive driving cycles with fault
Radiator fan does not operate properly.
Overheating
CAUTION:
After repair or replacement of faulty parts, conduct Clear Memory Mode and Inspection Mode .
EN(D0HC TURBO)-335
DIAGNOSTIC PROCEDURE WITH DIAGNOSTIC TROUBLE CODE (DTC)
ENGINE (DIAGNOSTICSI
WIRING DIAGRAM:
I
BATTERY
3 e- SBF-l a T
[i 1 S I c - h 4N M I IR
I 1
EN1 157
EN(D0HC TURBO)-336
DIAGNOSTIC PROCEDURE WITH DIAGNOSTIC TROUBLE CODE (DTC)
ENGINE (DIAGNOSTICS)
Step
1 CHECK OUTPUT SIGNAL FROM ECM.
1)Turn the ignition switch to OFF.
2)Connect the test mode connector at the
lower portion of instrument panel (on the
driver’s side), to the side of the center console
box.
3)Turn the ignition switch to ON.
4)While operating the radiator fan relay, measure voltage between ECM and chassis
ground.
NOTE:
Radiator fan relay operation can be executed
using Subaru Select Monitor. For procedure,
refer to “Compulsory Valve Operation Check
Mode”.
Connector & terminal
(8137) No. 17 (+) - Chassis ground (-):
(8137) No. 28 (+) - Chassis ground (-):
CHECK SHORT CIRCUIT IN RADIATOR FAN
RELAY CONTROL CIRCUIT.
1)Turn the ignition switch to OFF.
2)Remove the main fan relay and sub fan relay.
(with A/C models)
3)Disconnect the test mode connector.
4)Turn the ignition switch to ON.
5)Measure the voltage between ECM and
chassis ground.
2
Connector & terminal
(8137) No. 17 (+) - Chassis ground (-):
(8137) No. 28 (+) - Chassis ground (-):
3 CHECK MAIN FAN RELAY.
1)Turn the ignition switch to OFF.
2)Remove the main fan relay I and 2.
3)Measure the resistance between main fan
relay terminals.
Terminal
No. 25 - No. 26 (Main fan relay 1)
No. 23 - No. 24 (Main fan relay 2)
4 CHECK SUB FAN RELAY.
1)Remove the sub fan relay.
2)Measure the resistance between sub fan
relay terminals.
Terminal
No. 7 - No. 8 (Sub fan relay 1)
No. 17 - No. 18 (Sub fan relay 2)
Check poor contact in ECM connector.
5 CHECK POOR CONTACT.
Check
)oes the voltage change
letween 0 and 10 V?
s the voltage more than 10 V?
s the resistance less than 1
2?
s the resistance less than 1
2?
s there poor contact in ECM
:onnector?
Yes
Iven if MIL lights
ip, the circuit has
eturned to a nornal condition at
his time. In this
:ase, repair poor
:ontact in ECM
:onnector.
3epair battery
;hort circuit in
adiator fan relay
:ontrol circuit.
After repair,
eplace the ECM.
:Ref. to FU(D0HC
ruRBO)-47,
hgine Control
dodule.>
3eplace the main
an relay and
ICM. W(DOHC
Engine Control
dodule.>
rURBO)-47,
3eplace the sub
an relay and
X M . -U(DOHC
Engine Control
dodule.>
rURBO)-47,
3epair poor conact in ECM conlector.
No io to step 2.
io to step 3.
i o to step 4.
i o to step 5.
leplace the ECM.
:Ref. to FU(D0HC
ingine Control
Aodu1e.i
-U R BO)-47,
EN( DOHC TU RB0)-337
DIAGNOSTIC PROCEDURE WITH DIAGNOSTIC TROUBLE CODE (DTC)
ENGINE (DIAGNOSTICS)
DA:DTC PI507 - IDLE CONTROL SYSTEM MALFUNCTION (FAIL-SAFE) -
DTC DETECTING CONDITION:
TROUBLE SYMPTOM:
Immediately at fault recognition
Engine keeps running at higher revolution than specified idling revolution.
Fuel is cut according to fail-safe function.
CAUTION:
After repair or replacement of faulty parts, conduct Clear Memory Mode and Inspection Mode .
WIRING DIAGRAM:
MAIN RELAY
BATTERY
SBF-5
IDLE
41R CONTROL
SOLENOID
VALVE
@ ECM I
EN1160
EN(D0HC TURBO)-338
DIAGNOSTIC PROCEDURE WITH DIAGNOSTIC TROUBLE CODE (DTC)
ENG I NE (DIAGNOSTICS)
Yes
Inspect DTCP0506, P0507,
P0508, PO509 or
P1142 using “List
of Diagnostic Trouble Code (DTC)”.
TURBO)-80, List
of Diagnostic Trouble Code (DTC). >
NOTE:
In this case, it is
not necessary to
inspect DTC
P1507.
Repair air suction
and leaks.
Step
CHECK ANY OTHER DTC ON DISPLAY.
No Go to step 2.
Go to step 3. CHECK AIR INTAKE SYSTEM.
1)Turn the ignition switch to ON.
2)Start the engine, and idle it.
3)Check the following items.
*Loose installation of intake manifold, idle air
control solenoid valve and throttle body
*Cracks of intake manifold gasket, idle air confro1 solenoid valve gasket and throttle body
gasket
*Disconnections of vacuum hoses
CHECK THROlTLE CABLE.
Remove foreign
particles from bypass air line.
CHECK AIR BV-PASS LINE.
1)Turn the ignition switch to OFF.
2)Remove the idle air control solenoid valve
from throttle body. TURBO)-36, Idle Air Control Solenoid Valve.>
3)Confirm that there are no foreign particles in
bV-DaSS air line.
cable. TION, Accelerator
Control Cable.>
Replace the idle
air control solenoid
valve. FU( DOHC
TURBO)-36, Idle
Air Control Solenoid Valve.>
SP-7, INSTALLA-
Check
>oes the Subaru Select Monior or OBD-ll general scan tool
ndicate DTC P0506, P0507,
’0508, PO509 or P1142?
s there a fault in air intake sysem?
>oes the throttle cable have
)lay for adjustment?
ire foreign particles in by-pass
tir line?
EN(D0HC TURBO)-339
DIAGNOSTIC PROCEDURE WITH DIAGNOSTIC TROUBLE CODE (DTC)
ENGINE (DIAGNOSTICS)
EN(D0HC TURBO)-340
DIAGNOSTIC PROCEDURE WITH DIAGNOSTIC TROUBLE CODE (DTC)
ENGINE (DIAGNOSTICS)
DB:DTC P1518 - STARTER SWITCH CIRCUIT LOW INPUT -
DTC DETECTING CONDITION:
TROUBLE SYMPTOM:
CAUTION:
After repair or replacement of faulty parts, conduct Clear Memory Mode and Inspection Mode .
Two consecutive driving cycles with fault
Failure of engine to start
EN(D0HC TURBO)-341
DIAGNOSTIC PROCEDURE WITH DIAGNOSTIC TROUBLE CODE (DTC)
ENGINE (DIAGNOSTICS)
WIRING DIAGRAM:
EN1 139
EN(D0HC TURBO)-342
DIAGNOSTIC PROCEDURE WITH DIAGNOSTIC TROUBLE CODE (DTC)
ENGINE (DIAGNOSTICS)
Check
Does the starter motor operate
when ignition switch to “ST”?
Step
1 CHECK OPERATION OF STARTER MOTOR,
Yes No
Repair harness Check starter
and connector. motor circuit. NOTE: to EN(D0HC
In this case, repair TURBO)-64,
the following: STARTER
Open or ground MOTOR CIRshort circuit in har- CUIT, Diagnostics
ness between for Engine StartECM and starter ing Failure.>
motor connector.
Poor contact in
ECM connector.
EN(D0HC TURBO)-343
DIAGNOSTIC PROCEDURE WITH DIAGNOSTIC TROUBLE CODE (DTC)
ENGINE (DIAGNOSTICS)
DC:DTC PI544 - HIGH EXHAUST TEMPERATURE DETECTED -
DTC DETECTING CONDITION:
immediately at fault recognition
TROUBLE SYMPTOM:
Erroneous idling
Poor driving performance
CAUTION:
After repair or replacement of faulty parts, conduct Clear Memory Mode and Inspection Mode .
WIRING DIAGRAM:
EXHAUST GAS
TEMPERATURE
SENSOR
IC
F
@ ECM I
EN1 161
EN( DOHC TU RB0)-344
DIAGNOSTIC PROCEDURE WITH DIAGNOSTIC TROUBLE CODE (DTC)
FNGINE (DIAGNOSTICS)
Check
Ioes the Subaru Select Monior or OBD-ll general scan tool
ndicate DTC P0335, P0336,
'0340, P0341, P0545, P0546,
'1312, P0102, P0103, P0101,
'1 141, P0301, P0302, P0303,
'0304, P1301, P0171, P0133,
'1 134, PO1 31, P0132, P1130,
'1 131, P1139, P0031, P0032,
'01 39, PO1 36, PO039 or
'0037?
s there a fault in exhaust sysem?
Step
CHECK ANY OTHER DTC ON DISPLAY.
Yes
Inspect DTC
P0335, P0336,
P0340, P0341,
P0545, P0546,
P1312, P0102,
PO1 03, P0101,
P1141, P0301,
P0302, P0303,
P0304, P1301,
PO1 71, PO1 33,
P1134, PO1 31,
PO1 32, P1130,
P1131, P1139,
P0031, P0032,
PO1 39, PO1 36,
PO039 or PO037
using List of Diagnostic Trouble
Code (DTC). to EN(D0HC
TURBO)-80, List
of Diagnostic Trouble Code (DTC).>
NOTE:
In this case, it is
not necessary to
inspect DTC
P1544.
Repair or replace
failure, then
replace the precatalytic converter.
I CHECK EXHAUST SYSTEM.
Check exhaust system parts.
NOTE:
Check the following items.
*Loose installation of exhaust manifold
*Cracks or hole of exhaust manifold
*Loose installation of front oxygen (NF) senso
I
No ;o to step 2.
;ontact with SOA
distributor) serice.
JOTE:
nspection by DTM
j required, be:ause probable
:ause is deterioration of multiple
Darts.
EN(D0HC TURBO)-345
R!
DIAGNOSTIC PROCEDURE WITH DIAGNOSTIC TROUBLE CODE (DTC)
ENGINE (DIAGNOSTICS)
EN(D0HC TURBO)-346
DIAGNOSTIC PROCEDURE WITH DIAGNOSTIC TROUBLE CODE (DTC)
ENGINE (DIAGNOSTICS)
~~~
DD:DTC PI560 - BACK-UP VOLTAGE CIRCUIT MALFUNCTION -
DTC DETECTING CONDITION:
CAUTION:
After repair or replacement of faulty parts, conduct Clear Memory Mode and Inspection Mode .
Immediately at fault recognition
EN( DOHC TU RB0)-347
DIAGNOSTIC PROCEDURE WITH DIAGNOSTIC TROUBLE CODE (DTC)
ENGINE (DIAGNOSTICS)
WIRING DIAGRAM:
Step Check Yes
1 CHECK INPUT SIGNAL FOR ECM.
1)Turn the ignition switch to OFF.
2)Measure the voltage between ECM and
Is the voltage more than 10 V? Repair poor contact in ECM connector.
EN1 171
No Go to step 2.
chassis ground.
Connector & terminal
(8137) No. 10 (+) - Chassis ground (-):
EN(D0HC TURBO)-348
I DIAGNOSTIC PROCEDURE WITH DIAGNOSTIC TROUBLE CODE (DTC)
ENGINE (DIAGNOSTICS)
Step
! CHECK HARNESS BETWEEN ECM AND
MAIN FUSE BOX CONNECTOR.
1)Disconnect the connector from ECM.
2)Measure the resistance of harness between
ECM and chassis ground.
Connector & terminal
(8137) No. 10 - Chassis ground:
I CHECK FUSE SBFQ.
Check Yes No
Is the resistance less than 10
R? short circuit in harRepair ground
ness between
ECM connector
and battery terminal.
Is fuse blown? Replace the fuse. Repair harness
Go to step 3.
and connector.
NOTE:
In this case, repai
the following:
Open circuit in
harness between
ECM and battery
Poor contact in
ECM connector
Poor contact in
battery terminal
EN(D0HC TURBO)-349
DIAGNOSTIC PROCEDURE WITH DIAGNOSTIC TROUBLE CODE (DTC)
DE:DTC P1590 - NEUTRAL POSITION SWITCH CIRCUIT HIGH INPUT -
DTC DETECTING CONDITION:
Two consecutive driving cycles with fault
TROUBLE SYMPTOM:
Erroneous idling
CAUTION:
After repair or replacement of faulty parts, conduct Clear Memory Mode and Inspection Mode .
WIRING DIAGRAM:
10
INHIBKOR SWKCH
@a a
STAFiTER MOTOF I
B2M437(
EN( DOHC TU RBO)-350
-
Check
3oes the Subaru Select Moni:or or OBD-II general scan tool
ndicate DTC P0705?
s the voltage less than 1 V?
DIAGNOSTIC PROCEDURE WITH DIAGNOSTIC TROUBLE CODE (DTC)
ENGINE (DIAGNOSTICS)
Yes
Inspect DTC
PO705 using “List
of Diagnostic Trouble Code (DTC)”.
TURBO)-80, List
of Diagnostic Trouble Code (DTC).>
Go to step 3.
step
CHECK DTC PO705 ON DISPLAY. I
s the voltage between 4.5 and
5.5 V?
s there poor contact in ECM
:onnector?
s the voltage more than 10 V?
s the resistance less than 1
2?
! CHECK INPUT SIGNAL FOR ECM.
1)Turn the ignition switch to ON.
2)Measure the voltage between ECM and
chassis ground in selector lever “ N and “ P
positions.
Connector &i terminal
(8134) No. 8 (+) - Chassis ground (-):
CHECK INPUT SIGNAL FOR ECM.
Measure the voltage between ECM and chassis ground in selector lever except for “N” and
“ P positions.
1
Connector L? terminal
(8134) No. 8 (+) - Chassis ground (-):
I CHECK POOR CONTACT.
Check poor contact in ECM connector.
Go to step 4.
Repair poor contact in ECM connector.
Repair battery
short circuit in harness between
ECM and inhibitor
switch connector.
Go to step 7.
i CHECK INPUT SIGNAL FOR ECM.
Measure the voltage between ECM and chassis ground.
Connector & terminal
(8134) No. 8 (+) - Chassis ground (-):
i CHECK HARNESS BETWEEN ECM AND IN-
HIBITOR SWITCH CONNECTOR.
1)Turn the ignition switch to OFF.
2)Disconnect the connectors from ECM and
inhibitor switch.
3)Measure the resistance of harness between
ECM and inhibitor switch connector.
Connector & terminal
(8134) NO. 8 - (T7) NO. 12:
No Go to step 2.
Go to step 5.
Go to step 5.
Contact with SOA
(distributor) service.
NOTE:
Inspection by DTM
is required, because probable
cause is deterioration of multiple
parts.
Go to step 6.
Repair harness
and connector.
NOTE:
In this case, repaii
the following:
b Open circuit in
harness between
ECM and inhibitor
switch connector
b Poor contact in
zoupling connector
Poor contact in
inhibitor switch
Zonnector
b Poor contact in
ECM connector
EN(D0HC TURBO)-351
DIAGNOSTIC PROCEDURE WITH DIAGNOSTIC TROUBLE CODE (DTC)
ENGINE (DIAGNOSTICS)
Yes
20 to step 8.
30 to step 9.
Step
CHECK INHIBITOR SWITCH GROUND LINE.
Measure the resistance of harness between
inhibitor switch connector and engine ground.
Connector & terminal
(T7) No. 7 - Engine ground:
No Repair open circuit
in harness
between inhibitor
switch connector
and starter motor
ground line.
NOTE:
In this case, repai,
the following:
Open circuit in
harness between
inhibitor switch
connector and
starter motor
ground line
Poor contact in
starter motor connector
Poor contact in
starter motor
ground
Starter motor
Replace the inhibi,
tor switch. AT-28, Inhibitor
Switch.>
CHECK INHIBITOR SWITCH.
Measure the resistance between inhibitor
switch connector receptacle’s terminals in
selector lever “N” and “ P positions.
Terminals
NO. 7 - NO. 12:
CHECK SELECTOR CABLE CONNECTION. 3epair selector
Check
s the resistance less than 5
2?
Contact with SOA
s the resistance less than 1
2?
:able connection.
INSPECTION,
Select Cable.>
s there any fault in selector
:able connection to inhibitor
;witch?
(distributor) service.
NOTE:
Inspection by DTL
is required, be
cause probablc
cause is deteriora
tion of multiplf
parts.
EN(D0HC TURBO)-352
DIAGNOSTIC PROCEDURE WITH DIAGNOSTIC TROUBLE CODE (DTC)
ENG I NE (DIAGNOSTICS)
EN(D0HC TURBO)-353
DIAGNOSTIC PROCEDURE WITH DIAGNOSTIC TROUBLE CODE (DTC)
ENGINE (DIAGNOSTICS)
DF:DTC PI591 - NEUTRAL POSITION SWITCH CIRCUIT LOW INPUT -
DTC DETECTING CONDITION:
Two consecutive driving cycles with fault
TROUBLE SYMPTOM:
Erroneous idling
CAUTION:
After repair or replacement of faulty parts, conduct Clear Memory Mode and Inspection Mode .
WIRING DIAGRAM:
B2M437(
EN( DOHC TU RB0)-354
DIAGNOSTIC PROCEDURE WITH DIAGNOSTIC TROUBLE CODE (DTC)
ENGINE (DIAGNOSTICS)
Step
CHECK DTC PO705 ON DISPLAY.
CHECK INPUT SIGNAL FOR ECM.
1)Turn the ignition switch to ON.
2)Measure the voltage between ECM and
chassis ground.
Connector & terminal
(6134) No. 8 (+) - Chassis ground (-):
CHECK HARNESS BETWEEN ECM AND
TRANSMISSION HARNESS CONNECTOR.
1)Turn the ignition switch to OFF.
2)Disconnect the connectors from ECM and
transmission harness connector (T3).
3)Measure the resistance of harness between
ECM connector and chassis ground.
Connector & terminal
(6134) No. 8 - Chassis ground:
CHECK TRANSMISSION HARNESS CON-
NECTOR.
1)Disconnect the connector from inhibitor
switch .
2)Measure the resistance of harness between
transmission harness connector and engine
ground.
Connector & terminal
(T3) No. 12 - Engine ground:
CHECK INHIBITOR SWITCH.
Measure the resistance between inhibitor
switch connector receptacle’s terminals in
selector lever except for “N” position.
Terminals
NO. 7 - no. 12:
CHECK SELECTOR CABLE CONNECTION.
Check
Does the Subaru Select Monitor or OBD-ll general scan tool
indicate DTC P0705?
Is the voltage between 4.5 and
5.5 V at except “ N and “ P
positions?
Is the resistance less than 10
R?
Is the resistance less than 10
R?
Is the resistance more than 1
M a at except “N” and “ P positions?
Is there any fault in selector
cable connection to inhibitor
switch?
Yes
Inspect DTC
PO705 using “List
of Diagnostic Trouble Code (DTC)”.
TURBO)-80, List
of Diagnostic Trouble Code (DTC).>
Even if MIL lights
up, the circuit has
returned to a normal condition at
this time.
Repair ground
short circuit in harness between
ECM and transmission harness
connector.
Repair ground
short circuit in harness between
transmission harness and inhibitor
switch connector.
Go to step 6.
Repair selector
cable connection.
INSPECTION,
Select Cable.>
No 20 to step 2.
so to step 3.
i o to step 4.
$0 to step 5.
Ieplace the inhibi.
or switch. 4l-28, Inhibitor
;witch.>
:ontact with SOA
distributor) serice.
JOTE:
nspection by DTk
; required, be
:ause probablc
:ause is deteriora
ion of multiplc
,arts.
EN (DOH C TU R B0)-355
DIAGNOSTIC PROCEDURE WITH DIAGNOSTIC TROUBLE CODE (DTC)
ENGINE (DIAGNOSTICS)
Step Check
1 CHECK DRIVING CONDITION. Is the AT shift control function1)Start and warm-up the engine until the radia- ing properly?
tor fan makes one complete rotation.
2)Drive the vehicle.
DG:DTC P I 594 - AUTOMATIC TRANSMISSION DIAGNOSIS INPUT SIGNAL
CIRCUIT MALFUNCTION -
DTC DETECTING CONDITION:
CAUTION:
After repair or replacement of faulty parts, conduct Clear Memory Mode and Inspection Mode .
WIRING DIAGRAM:
Two consecutive driving cycles with fault
Yes
Go to step 2.
@ TCM r
i 02M4371
No Replace the TCM.
Transmission Control Module
(TCM).>
EN(D0HC TURBO)-356
EN(D0HC TURB0)957
I
Step Check Yes No
2 CHECK ACCESSORY. Are car phone and/or CB Repair grounding Replace the TCM.
or CB system. Transmission Coninstalled on vehicle? line of car phone trol Module
(TCM).>
DIAGNOSTIC PROCEDURE WITH DIAGNOSTIC TROUBLE CODE (DTC)
ENGINE (DIAGNOSTICS)
DH:DTC P I 595 - AUTOMATIC TRANSMISSION DIAGNOSIS INPUT SIGNAL
CIRCUIT LOW INPUT -
DTC DETECTING CONDITION:
CAUTION:
After repair or replacement of faulty parts, conduct Clear Memory Mode and Inspection Mode .
WIRING DIAGRAM:
Two consecutive driving cycles with fault
@ TCM n
IC
F
71
7
B2M4371
EN(D0HC TURBO)-358
DIAGNOSTIC PROCEDURE WITH DIAGNOSTIC TROUBLE CODE (DTC)
ENG I NE (D I AG NOSTl CS)
Step
CHECK HARNESS BETWEEN ECM AND
TCM CONNECTOR.
1)Turn the ignition switch to ON.
2)Measure the voltage between ECM and
chassis ground.
Connector & terminal
(6135) No. 20 (+) - Chassis ground (-):
! CHECK HARNESS BETWEEN ECM AND
TCM CONNECTOR.
1)Turn the ignition switch to OFF.
2)Disconnect the connector from ECM and
TCM.
3)Measure the resistance of harness between
ECM and chassis ground.
Connector & terminal
(6135) No. 20 - Chassis ground:
CHECK OUTPUT SIGNAL FOR ECM.
1)Connect the connector to ECM.
2)Turn the ignition switch to ON.
3)Measure the voltage between ECM and
chassis ground.
I
Connector & terminal
(6135) No. 20 (+) - Chassis ground (-):
CHECK TROUBLE CODE FOR AUTOMATIC
TRANSMISSION.
Read the trouble code for automatic transmission. Code (DTC).>
I
Check
Is the voltage less than 1 V?
Is the resistance less than 10
R?
Is the voltage more than 5 V?
Does the trouble code appear
for automatic transmission?
Yes
30 to step 2.
3epair ground
;hort circuit in harless between
ICM and TCM
:onnector.
i o to step 4.
nspect trouble
:ode for automatic
ransmission.
:Ref. to AT-44,
liagnostic Procejure with Diagnosic Trouble Code
DTC).>
No Even if MIL lights
~ p , the circuit has
eturned to a nornal condition at
his time.
\IOTE:
n this case, repaii
he following:
' Poor contact in
X M connector
' Poor contact in
TCM connector
30 to step 3.
3epair poor conact in ECM conlector.
3eplace the TCM.
:Ref. to AT-45,
rransmission Conrol Module
TCM).>
EN(D0HC TURBO)-359
DIAGNOSTIC PROCEDURE WITH DIAGNOSTIC TROUBLE CODE (DTC)
ENGINE (DIAGNOSTICS)
DI: DTC P I 596 - AUTOMATIC TRANSMISSION DIAGNOSIS INPUT SIGNAL
DTC DETECTING CONDITION:
CAUTION:
After repair or replacement of faulty parts, conduct Clear Memory Mode and Inspection Mode .
WIRING DIAGRAM:
CIRCUIT HIGH INPUT -
Two consecutive driving cycles with fault
@ TCY n
IC
F
82M4371
EN(D0HC TURBO)-360
DIAGNOSTIC PROCEDURE WITH DIAGNOSTIC TROUBLE CODE (DTC)
ENGINE (DIAGNOSTICS)
Step
CHECK HARNESS BETWEEN ECM AND
TCM CONNECTOR.
1)Turn the ignition switch to ON.
2)Measure the voltage between ECM and
chassis ground.
Connector & terminal
(8135) No. 20 (+) - Chassis ground (-):
! CHECK HARNESS BETWEEN ECM AND
TCM CONNECTOR.
Measure the voltage between ECM connector
and chassis ground.
Connector & terminal
(8135) No. 20 (+) - Chassis ground (-):
CHECK HARNESS BETWEEN ECM AND
TCM CONNECTOR.
Measure the voltage between ECM connector
and chassis ground.
a (8135) No. 20 (+) - Chassis ground (-):
CHECK OUTPUT SIGNAL FROM ECM.
Measure the voltage between ECM and chassis ground.
Connector & terminal
I
Connector & terminal
(8135) No. 20 (+) - Chassis ground (-):
i CHECK HARNESS BETWEEN ECM AND
TCM CONNECTOR.
Measure the voltage between TCM and chassis ground.
Connector & terminal
(B54) No, 20 (+) - Chassis ground (-):
i CHECK POOR CONTACT.
Check poor contact in TCM connector.
Check
s the voltage more than 10 V?
s the voltage more than 4 V?
s the voltage less than 1 V?
Ioes the voltage change from
V to 4 V while monitoring the
falue with voltage meter?
s the voltage more than 4 V?
s there poor contact in TCM
:onnector?
Yes
Repair battery
short circuit in harless between
ECM and TCM
zonnector. After
repair, replace the
ECM. FU(D0HC
Engine Control
Module.>
Go to step 5.
TURBO)-47,
Repair poor contact in ECM connector.
Even if MIL lights
up, the circuit has
returned to a normal condition at
this time.
NOTE:
In this case, repaii
the following:
Poor contact in
ECM connector
Poor contact in
TCM connector
Go to step 6.
Repair poor contact in TCM connector.
No Go to step 2.
Go to step 3.
Go to step 4.
Contact with SOA
(distributor) service.
NOTE:
Inspection by DTN
is required, b e
cause probable
cause is deteriora.
tion of multiple
parts.
Repair open circuit
in harness
between ECM and
TCM connector.
Check TCM power
supply line and
aroundina line.
EN(D0HC TURBO)-361
DIAGNOSTIC PROCEDURE WITH DIAGNOSTIC TROUBLE CODE (DTC)
ENGINE lDlAGNOSTlCSl
DJ:DTC PI698 - ENGINE TORQUE CONTROL CUT SIGNAL CIRCUIT LOW IN-
DTC DETECTING CONDITION:
CAUTION:
After repair or replacement of faulty parts, condut Clear Memory Mode and Inspection Mode .
WIRING DIAGRAM:
PUT -
Two consecutive driving cycles with fault
IC
c i II
I @ .
EN(D0HC TURBO)-362
DIAGNOSTIC PROCEDURE WITH DIAGNOSTIC TROUBLE CODE (DTC)
ENGINE (DIAGNOSTICS)
Check
Is the voltage more than 3 V?
Step
CHECK OUTPUT SIGNAL FROM ECM.
1)Start the engine, and warm-up the engine.
2)Turn the ignition switch to OFF.
3)Turn the ignition switch to ON.
4)Measure the voltage between ECM and
chassis ground.
Connector & terminal
(B 136) No. 14 (+) - Chassis ground (-):
CHECK HARNESS BETWEEN ECM AND
TCM CONNECTOR.
1)Turn the ignition switch to OFF.
2)Disconnect the connectors from ECM and
TCM.
3)Measure the resistance of harness between
ECM and chassis ground.
Connector & terminal
(8136) No. 14 - Chassis ground:
CHECK HARNESS BETWEEN ECM AND
TCM CONNECTOR.
Measure the resistance of harness between
ECM and TCM connector.
Connector & terminal
(8136) NO. 14 - (BSS) NO. 20:
Yes
Repair poor contact in ECM conIs the resistance less than 10
R?
Is the resistance less than 1
R?
nector.
Repair ground
short circuit in harnessbetween
ECM and TCM
connector.
Repair poor contact in ECM or
TCM connector.
No So to step 2.
Go to step 3.
Repair open circuit
in harness
between ECM and
TCM connector.
EN(D0HC TURBO)-363
DIAGNOSTIC PROCEDURE WITH DIAGNOSTIC TROUBLE CODE (DTC)
ENGINE (DIAGNOSTICS)
DK:DTC P1699 - ENGINE TORQUE CONTROL CUT SIGNAL CIRCUIT HIGH IN-
DTC DETECTING CONDITION:
CAUTION:
After repair or replacement of faulty parts, conduct Clear Memory Mode and Inspection Mode .
WIRING DIAGRAM:
PUT -
Two consecutive driving cycles with fault
@ TCM F
IC
P
EN(D0HC TURBO)-364
DIAGNOSTIC PROCEDURE WITH DIAGNOSTIC TROUBLE CODE (DTC)
ENGINE (DIAGNOSTICS)
Yes
30 to step 2.
qepair battery
short circuit in harless between
ECM and TCM
:onnector. After
,epair, replace the
ECM. FU(D0HC
TURBO)-47,
Engine Control
Module.>
I
No Repair battery
short circuit in harness between
ECM and TCM
connector. After
repair, replace the
ECM. FU(D0HC
Engine Control
Module.>
Contact with SOA
(distributor) service.
NOTE:
Inspection by DTM
is required, because probable
cause is deteriora.
tion of multiple
parts.
TURBO)-47,
Step
CHECK OUTPUT SIGNAL FROM ECM.
1)Start the engine, and warm-up the engine.
2)Turn the ignition switch to OFF.
3)Disconnect the connector from TCM.
4)Turn the ignition switch to ON.
5)Measure the voltage between ECM and
chassis ground.
Connector & terminal
(B 136) No. 14 (+) - Chassis ground (-):
2 CHECK HARNESS BETWEEN ECM AND
TCM CONNECTOR.
1)Turn the ignition switch to OFF.
2)Measure the voltage between ECM and
chassis ground.
Connector & terminal
(B 136) No. 14 (+) - Chassis ground (-):
Check
Is the voltage less than 3 V?
Does the voltage change more
than 10 V by shaking harness
and connector of ECM while
monitoring the value with voltage meter?
EN(D0HC TURBO)-365
-
DIAGNOSTIC PROCEDURE WITH DIAGNOSTIC TROUBLE CODE (DTC)
ENGINE IDIAGNOSTICS)
~
DL:DTC PI 701 - CRUISE CONTROL SET SIGNAL CIRCUIT MALFUNCTION
FOR AUTOMATIC TRANSMISSION -
DTC DETECTING CONDITION:
CAUTION:
After repair or replacement of faulty parts, conduct Clear Memory Mode and Inspection Mode .
WIRING DIAGRAM:
Two consecutive driving cycles with fault
D
P
71
EN1 170
EN(D0HC TURBO)-366
DIAGNOSTIC PROCEDURE WITH DIAGNOSTIC TROUBLE CODE (DTC)
ENGINE (DIAGNOSTICS)
Step
CHECK HARNESS BETWEEN TCM AND
CCM CONNECTOR.
1)Turn the ignition switch to OFF.
2)Disconnect the connectors from TCM and
CCM.
3)Measure the resistance of harness between
TCM and CCM connector.
Connector & terminal
I
(655) NO. 22 - (694) NO. 3:
! CHECK HARNESS BETWEEN TCM AND
CCM CONNECTOR.
Measure the resistance of harness between
TCM and chassis ground.
Connector & terminal
(655) No. 22 - Chassis ground:
CHECK INPUT SIGNAL FOR TCM.
Check
Is the resistance less than 1
R?
Is the resistance less than 10
n? Is the resistance less than 1 V’
1)Connect the connector to TCM and CCM.
2)Lift-up the vehicle or set the vehicle on free
rollers.
CAUTION:
On AWD models, raise all wheels off
ground.
3)Start the engine.
4)Turn the cruise control main switch to ON.
5)Move selector lever to “ D and slowly
increase vehicle speed to 50 km/h (31 MPH).
6)Turn the cruise control command switch to
ON.
7)Measure the voltage between TCM and
chassis ground.
Connector & terminal
(655) No. 11 (+) - Chassis ground (-):
I CHECK POOR CONTACT.
Check poor contact in TCM connector.
IS there poor contact in TCM
Zonnector?
I
Yes
20 to step 2.
3epair short circuit
n harness
letween TCM and
X M connector.
20 to step 4.
3epair poor conact in TCM conlector.
No Repair open circuit
in harness
between TCM and
CCM connector.
Go to step 3.
Check cruise control command
switch circuit.
INSPECTION,
Cruise Control
Command
Switch. >
Replace the TCM.
Transmission Control Module
(TCM).>
EN(D0HC TURBO)-367
DIAGNOSTIC PROCEDURE WITH DIAGNOSTIC TROUBLE CODE (DTC)
ENGINE (DIAGNOSTICS)
DM:DTC PI711 - ENGINE TORQUE CONTROL SIGNAL 1 CIRCUIT MALFUNC-
DTC DETECTING CONDITION:
Two consecutive driving cycles with fault
TROUBLE SYMPTOM:
Excessive shift shock
CAUTION:
After repair or replacement of faulty parts, conduct Clear Memory Mode and Inspection Mode .
WIRING DIAGRAM:
TION -
@ TCM El 71
7
B2M4374
EN(D0HC TURBO)-368
DIAGNOSTIC PROCEDURE WITH DIAGNOSTIC TROUBLE CODE (DTC)
ENGINE (DIAGNOSTICS)
Step
CHECK INPUT SIGNAL FOR ECM.
1)Turn the ignition switch to ON.
2)Measure the voltage between ECM and
chassis ground.
Connector & terminal
(8135) No. 19 (+) - Chassis ground (-):
CHECK INPUT SIGNAL FOR ECM.
Measure the voltage between ECM and chassis ground.
!
Connector & terminal
(8135) No. 19 (+) - Chassis ground (-):
1 CHECK POOR CONTACT.
Check poor contact in ECM connector.
I CHECK HARNESS BETWEEN ECM AND
TCM CONNECTOR.
1)Turn the ignition switch to OFF.
2)Disconnect the connectors from ECM and
TCM.
3)Measure the resistance of harness between
ECM and TCM connector.
Connector & terminal
(8135) NO. 19 - (854) NO. 13:
i CHECK HARNESS BETWEEN ECM AND
TCM CONNECTOR.
Measure the resistance of harness between
ECM and chassis ground.
Connector & terminal
(8135) No. 19 - Chassis ground:
Check poor contact in TCM connector.
i CHECK POOR CONTACT.
Check
;the voltage more than 4.5 V?
; the voltage more than 10 V?
s there poor contact in ECM
:onnector?
s the resistance less than 1
2?
s the resistance less than 10
2?
s there poor contact in TCM
:onnector?
Yes
;o to step 2.
qepair battery
;hort circuit in harless between
X M and TCM
:onnector.
3epair poor conact in ECM conlector.
30 to step 5.
3epair ground
short circuit in harless between
:CM and TCM
:onnector.
3epair poor con:act in TCM conlector.
No Go to step 4.
Go to step 3.
Replace the ECM.
Engine Control
Module.>
Repair open circuit
in harness
between ECM and
TCM connector.
TURBO)-47,
Go to step 6.
Replace the TCM.
Transmission Con.
trol Module
(TCM) .>
EN( DOHC TU RB0)-369
DIAGNOSTIC PROCEDURE WITH DIAGNOSTIC TROUBLE CODE (DTC)
ENGINE (DIAGNOSTICS)
DN:DTC PI712 - ENGINE TORQUE CONTROL SIGNAL 2 CIRCUIT MALFUNC-
TION -
DTC DETECTING CONDITION:
Two consecutive driving cycles with fault
TROUBLE SYMPTOM:
Excessive shift shock
CAUTION:
After repair or replacement of faulty parts, conduct Clear Memory Mode and Inspection Mode .
WIRING DIAGRAM:
B2M437E
EN(D0HC TURBO)-370
DIAGNOSTIC PROCEDURE WITH DIAGNOSTIC TROUBLE CODE (DTC)
ENGINE (DIAGNOSTICS)
Step
CHECK INPUT SIGNAL FOR ECM.
1)Turn the ignition switch to ON.
2)Measure the voltage between ECM and
chassis ground.
Connector & terminal
(8134) No. 18 (+) - Chassis ground (-):
CHECK INPUT SIGNAL FOR ECM.
Measure the voltage between ECM and chassis ground.
Connector & terminal
CHECK POOR CONTACT.
Check poor contact in ECM connector.
(8134) No. 18 (+) - Chassis ground (-):
CHECK HARNESS BETWEEN ECM AND
TCM CONNECTOR.
1)Turn the ignition switch to OFF.
2)Disconnect the connectors from ECM and
TCM.
3)Measure the resistance of harness between
ECM and TCM connector.
Connector &i terminal
(8 134) NO. 18 - (856) NO. 4:
CHECK HARNESS BETWEEN ECM AND
TCM CONNECTOR.
Measure the resistance of harness between
ECM and chassis ground.
Connector & terminal
(8134) No. 18 - Chassis ground:
CHECK POOR CONTACT.
Check poor contact in TCM connector.
Check
Is the voltage more than 4.5 V?
Is the voltage more than 10 V?
Is there poor contact in ECM
Zonnector?
Is the resistance less than 1
n? Is the resistance less than 10
n? Is there poor contact in TCM
connector?
Yes
Go to step 2.
Repair battery
short circuit in harness between
ECM and TCM
connector.
Repair poor contact in ECM connector.
Go to step 5.
Repair ground
short circuit in harness between
ECM and TCM
connector.
Repair poor contact in TCM connector.
No 30 to step 4.
30 to step 3.
3eplace the ECM.
:Ref. to FU(D0HC
Engine Control
Module.>
3epair open circuii
n harness
ietween ECM and
TCM connector.
rURBO)-47,
30 to step 6.
3eplace the TCM.
:Ref. to AT-45,
rransmission Con:rol Module
:TCM).>
EN(D0HC TURBO)-371
GENERAL DIAGNOSTIC TABLE
ENGINE (DIAGNOSTICS)
19.General Diagnostic Table
A: INSPECTION
1. ENGINE
NOTE:
Malfunction of parts other than those listed is also possible. in General.>
SvmDtom
1. Engine stalls during idling.
2. Rough idling
3. Engine does not return to idle.
4. Poor acceleration
5. Engine stalls or engine sags or hesitates at
acceleration.
Problem parts
1) Idle air control solenoid valve
2) Pressure sensor
3) Mass air flow and intake temperature sensor
4) Ignition parts (*I)
5) Engine coolant temperature sensor (*2)
6) Crankshaft position sensor ('3)
7) Camshaft position sensor (*3)
8) Fuel injection parts (*4)
1) Idle air control solenoid valve
2) Pressure sensor
3) Mass air flow and intake temperature sensor
4) Engine coolant temperature sensor (*2)
5) Ignition parts (*I)
6) Air intake system (*5)
7) Fuel injection parts (*4)
8) Throttle position sensor
9) Crankshaft position sensor (*3)
IO) Camshaft position sensor (*3)
1 1 ) Oxygen sensor
12) Fuel pump and fuel pump relay
1) Idle air control solenoid valve
2) Engine coolant temperature sensor
3) Accelerator cable ("6)
4) Throttle position sensor
5) Pressure sensor
6) Mass air flow sensor
1) Pressure sensor
2) Mass air flow and intake temperature sensor
3) Throttle position sensor
4) Fuel injection parts (*4)
5) Fuel pump and fuel pump relay
6) Engine coolant temperature sensor (*2)
7) Crankshaft position sensor (*3)
8) Camshaft position sensor (*3)
9) A/C switch and A/C cut relay
10) Engine torque control signal circuit
11) Ignition parts (*I)
1) Pressure sensor
2) Mass air flow and intake temperature sensor
3) Engine coolant temperature sensor (*2)
4) Crankshaft position sensor (*3)
5) Camshaft position sensor (*3)
6) Purge control solenoid valve
7) Fuel injection parts ('4)
8) Throttle position sensor
9) Fuel pump and fuel pump relay
EN(D0HC TURBO)-372
GENERAL DIAGNOSTIC TABLE
ENGINE IDIAGNOSTICS)
SvmDtom
6. Surge
7. Spark knock
8. After burning in exhaust system
Problem parts
1) Pressure sensor
2) Mass air flow and intake temperature sensor
3) Engine coolant temperature sensor (*2)
4) Crankshaft position sensor (*3)
5) Camshaft position sensor (*3)
6) Fuel injection parts (*4)
7) Throttle position sensor
8) Fuel pump and fuel pump relay
1) Pressure sensor
2) Mass air flow and intake temperature sensor
3) Engine coolant temperature sensor
4) Knock sensor
5) Fuel injection parts (*4)
6) Fuel pump and fuel pump relay
1) Pressure sensor
2) Mass air flow and intake temperature sensor
3) Engine coolant temperature sensor (*2)
4) Fuel injection parts (*4)
5) Fuel pump and fuel pump relay
*1: Check ignition coil & ignitor assembly and spark plug.
*2: Indicate the symptom occurring only in cold temperatures.
*3: Ensure the secure installation.
*4: Check fuel injector, fuel pressure regulator and fuel filter.
*5: Inspect air leak in air intake system.
*6: Adjust accelerator cable.
EN( DOHC TU RB0)-373
GENERAL DIAGNOSTIC TABLE
ENGINE (DIAGNOSTICS)
EN(D0HC TURBO)-374

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