Technician Reference Booklet - Subaru Fan Club

Copy and paste this link to your website, so they can see this document directly without any plugins.



Keywords

2008, Model, 2007, August, Update, 917), (Module, with, Front, control, Hose, MODEL, Sensor, Side, from, sensor, View, Airbag, Rear, Slide, System, faulty., 2.5i, IMPREZA, Satellite, Connector, UPGRADE, side, Shift, module

Transcript

CERTIFIED
TECHNICIAN
Technician
Reference
Booklet
Technical Training
MSA5P0803C
2008 New Model Update
October 2007
Module 917
© Copyright 2007
Subaru of America, Inc.
All rights reserved. This book may not be reproduced
in whole or in part without the express permission of
Subaru of America, Inc.
Subaru of America, Inc. reserves the right at any
time to make changes or modifications to systems,
procedures, descriptions, and illustrations contained in
this book without necessarily updating this document.
Information contained herein is considered current as
of October 2007.
© Subaru of America, Inc. 2007
2008 New Model Update (Module 917)
4
August 2007
TABLE OF CONTENTS
2008 IMPREZA INTRODUCTION..................................................................... 6
OPTION CODES AND EQUIPMENT ....................................................... 8
2.5I STANDARD EQUIPMENT IMPREZA 2.5I 4 DOOR (FW)................. 8
STANDARD EQUIPMENT.............................................................. 8
2.5-Liter SOHC Engine ................................................................... 8
2.5I PREMIUM PACKAGE MODEL UPGRADE IMPREZA 2.5I............... 9
PREMIUM PACKAGE (IZ) .............................................................. 9
MODEL UPGRADE FROM IMPREZA 2.5i (FW) ............................ 9
2.5I SATELLITE RADIO & NAVIGATION PACKAGE MODEL UPGRADE
IMPREZA 2.5I .......................................................................................... 9
SAT/NAV PACKAGE (VZ) .............................................................. 9
MODEL UPGRADE FROM IMPREZA 2.5i PREMIUM PACKAGE
(IZ) .................................................................................................. 9
OUTBACK SPORT MODEL UPGRADE ................................................ 10
IMPREZA OUTBACK SPORT (FW) ............................................. 10
MODEL UPGRADE FROM 2.5i 5 DOOR (FZ) ............................ 10
WRX MODEL UPGRADE....................................................................... 10
IMPREZA WRX (FF)..................................................................... 10
MODEL UPGRADE FROM 2.5i (FW) ........................................... 10
WRX PREMIUM PACKAGE MODEL UPGRADE .................................. 11
IMPREZA WRX PREMIUM PACKAGE (KJ)................................. 11
MODEL UPGRADE FROM IMPREZA WRX (FF)......................... 11
WRX SATELLITE RADIO & NAVIGATION PACKAGE MODEL UP-
GRADE................................................................................................... 11
IMPREZA WRX SAT/NAV PACKAGE (UJ) .................................. 11
MODEL UPGRADE FROM WRX PREMIUM PACKAGE (KJ) ..... 11
INTERIOR ....................................................................................................... 12
NAVIGATION.......................................................................................... 15
NAVIGATION DIAGNOSIS..................................................................... 17
NAVIGATION/AUDIO SYSTEM ............................................................. 18
WINDOW................................................................................................ 20
ELECTRICAL .................................................................................................. 26
FUSE BOXES AND RELAY HOLDERS................................................. 26
2008 New Model Update (Module 917)
5
August 2007
BODY INTEGRATED UNIT (BIU) ................................................................... 33
BODY INTEGRATED UNIT .................................................................... 33
BODY INTEGRATED UNIT CUSTOMIZING(NEW ITEMS) ................... 33
LIGHTING SWITCH................................................................................ 34
HEADLIGHT OPERATION..................................................................... 34
MULTI JOINT CONNECTOR .......................................................................... 35
SUPPLEMENTAL RESTRAINT SYSTEM (SRS)............................................ 41
EVAPORATIVE SYSTEM ............................................................................... 44
HOSE CONNECTIONS.......................................................................... 46
FUEL TANK..................................................................................................... 52
AUTOMATIC TRANSMISSION....................................................................... 53
CHANGES/ENHANCEMENTS............................................................... 53
Condition....................................................................................... 53
Conditions needed ........................................................................ 53
Procedure ..................................................................................... 54
INITIAL-LEARNING PROCEDURE (4AT WITHOUT PUSH START) .... 55
Procedure ..................................................................................... 55
MANUAL TRANSMISSION CHANGES/ENHANCEMENTS ........................... 57
6 SPEED MANUAL TRANSMISSION (2008).................................................. 59
5AT MAJOR MODIFICATION POINTS........................................................... 63
APPLICATION CHART........................................................................... 65
DRIVE PINION SHAFT AND ATF LEVEL GAUGE ................................ 69
OTHERS................................................................................................. 69
2.5 LITER AIR CONDITIONING BELT............................................................ 70
CHASSIS......................................................................................................... 73
INCLINE START ASSIST ....................................................................... 73
SUSPENSION ........................................................................................ 74
TIRE PRESSURE MONITORING SYSTEM........................................... 75
TOW HOOKS AND TAIL LIGHT............................................................. 76
2008 New Model Update (Module 917)
6
August 2007
2008 IMPREZA INTRODUCTION
The 2008 model year for Impreza launches a new body style and introduces many of the refined
systems that are equipped on Legacy and Tribeca to the Impreza model line up.
2008 2.5i Impreza 5 Door Front View 2008 2.5i Impreza 5 Door Side View
2008 2.5i Impreza Side View 2008 Impreza 2.5i 4 Door Side View
5 6
7 8
2008 New Model Update (Module 917)
7
August 2007
2008 WRX Front View 2008 WRX Side View
1. Impreza
A: DIMENSION
B: ENGINE
Model Sedan Wagon OUTBACK
Overall length mm (in) 4,415 (173.8)
Overall width mm (in) 1,740 (68.5)
Overall height (at C.W.) mm (in) 1,475 (58.1)
Compartment
Length mm (in) 1,890 (74.4) 1,985 (78.1)
Width mm (in) 1,475 (58.1)
Height mm (in) 1,200 (47.2)
Wheelbase mm (in) 2,620 (103.1)
Tread
Front mm (in) 1,495 (58.9) 1,490 (58.7)
Rear mm (in)
Non-turbo model: 1,495 (58.9)
Turbo model: 1,500 (59.1)
1,495 (58.9)
Minimum road clearance mm (in) 155 (6.1)
Model 2.5 L Turbo 2.5 L
Engine type Horizontally opposed, liquid cooled, 4-cylinder, 4-stroke gasoline engine
Valve arrangement DOHC SOHC
Bore × stroke mm (in) 99.5 × 79 (3.92 × 3.11)
Displacement cm3 (cu in) 2,457 (149.94)
Compression ratio 8.4 10.0
Ignition order 1 — 3 — 2 — 4
Idle speed at Park or
Neutral position
rpm
700
MT: 650
AT: 700
Maximum output kW (HP)/rpm 167 (224)/5,200 127 (170)/6,000
Maximum torque N·m (kgf-m, ft-lb)/rpm 307 (31.3, 226)/2,800 230 (23.5, 170)/4,400
Dimension Chart
9 10
11
2008 New Model Update (Module 917)
8
August 2007
Option Codes and Equipment
There are 7 Manual Transmission Model option codes and 5 Automatic Transmission option
codes.
2.5i STANDARD EQUIPMENT IMPREZA 2.5i 4 DOOR (FW)
STANDARD EQUIPMENT
2.5-Liter SOHC Engine
Electronic Throttle Control (ETC)
5-Speed Manual Transmission (Standard)
*Four Speed Electronic Direct Control
Automatic with Sportshift (Optional)
5-MPH Impact-Absorbing Bumpers
*16X6.5JJ Steel Wheels with Covers
205/55 R16 All-Season Tires
Carpeted Floor Mats
ABS System: 4 Channel / 4 Sensor
Front Ventilated Disc Brakes
*Rear Drum Brakes
Electronic Brake Force Distribution (EBD)
Active Front Seat Head Restraints
*Side Curtain Airbags
Subaru advanced frontal airbag system (SRS)
Manual Air Conditioning
AM/FM 80 Watt Stereo with Single CD Player
4 Audio Speakers
*MP3/WMA Capability
*Pre-wired for XM/SIRIUS Satellite Radio
Cargo Area Cover (5 DOOR)
Cruise Control
“Cup Holder, Dual, Center Console “
Daytime Running Lights (DRL)
“Door Handles, Black Exterior “
Dual-Mode Digital Trip Odometer
“Exterior Mirrors, Foldable Black”
Fog Light Insert Covers
LATCH System
*Bottle Holder: Front and Rear Door Storage Pocket
Leather-wrapped Shifter Handle
*16.9 Gallon Fuel tank
Clock
Off-Delay Dome Light
Seatback pocket on front passenger seat
Illuminated Ignition Switch Ring
*Average Fuel consumption indicator
Power-Assisted Steering
Power Door Locks
Power Mirrors
Power Windows with Driver’s Auto-Down
Pre-Wired for Security System
2008 New Model Update (Module 917)
9
August 2007
“*Rear Seatback, 60/40 Split Fold-Down”
Rear Seat Headrests for All Seating Positions
Remote Keyless Entry System with Answer Back Chirp
*Double Wishbone Rear Suspension
Tilt Steering Column
Rear Spoiler (5 DOOR)
Visor Vanity Mirrors: Dual with Sliding Cover
“Windshield Wipers, Variable Intermittent ” with Washers
Tricot Upholstery
“Sport-Design Front Seats
Ambient Temperature Gauge
*Engine Immobilizer
2.5i PREMIUM PACKAGE MODEL UPGRADE IMPREZA 2.5i
PREMIUM PACKAGE (IZ)
MODEL UPGRADE FROM IMPREZA 2.5i (FW)
AM/FM 80 Watt Stereo with 6-disc in-dash CD-changer
*10 Audio Speakers
Auxiliary Audio Jack
*MP3/WMA Capability
*16 Inch X 6.5 JJ 12-Spoke Aluminum Alloy Wheels
Rear Disc Brakes
*Leather-Wrapped Steering Wheel w/ Audio & Cruise Control Switches
Leather-wrapped Shift Knob
Front Fog Lights
Body-color Exterior Mirrors and Door Handles
*Vehicle Dynamics Control (VDC)
*Incline Start Assist (MT models Only)
*Brake Assist
2.5i SATELLITE RADIO & NAVIGATION PACKAGE MODEL UPGRADE IMPREZA 2.5i
SAT/NAV PACKAGE (VZ)
MODEL UPGRADE FROM IMPREZA 2.5i PREMIUM PACKAGE (IZ)
*Touch-Screen GPS Navigation System
AM/FM 100 Watt Stereo with Single CD Player
*Factory Installed SIRIUS Satellite Radio with Roof Mounted Antenna
2008 New Model Update (Module 917)
10
August 2007
OUTBACK SPORT MODEL UPGRADE
IMPREZA OUTBACK SPORT (FW)
MODEL UPGRADE FROM 2.5i 5 DOOR (FZ)
12-Volt Cargo Power Outlet
*17 Inch X 7 JJ 5-Spoke Aluminum Alloy Wheels
Raised Suspension
Rear Disc Brakes
“Cargo Tray, Removable”
Unique Cloth Upholstery
Carrier Base
Two-Tone Body Color
*Vehicle Dynamics Control (VDC)
*Incline Start Assist (MT models Only)
*Brake Assist
AM/FM 80 Watt Stereo with 6-disc in-dash CD-changer
*10 Audio Speakers
Auxiliary Audio Jack
*MP3/WMA capability
*Leather-Wrapped Steering Wheel w/ Audio & Cruise Control Switches
Leather-wrapped Shift Knob
Front Fog Lights
*Heated Exterior Mirrors
*Dual Mode Heated Front Seats
*Windshield Wiper De-Icer
*Front Bumper Under Guard
*Rear Bumper Under Guard
*Side Molding
WRX MODEL UPGRADE
IMPREZA WRX (FF)
MODEL UPGRADE FROM 2.5i (FW)
2.5-Liter DOHC Intercooled Turbo Engine
*Vehicle Dynamics Control (VDC)
*Incline Start Assist (MT models Only)
*Brake Assist
205/50 R17 all-season tires
17 inch X 7 JJ 10-Spoke Aluminum Alloy Wheels
Rear Solid Disc Brakes
Rear Stabilizer Bar
Performance Design seats
Leather-Wrapped Steering Wheel
Leather-wrapped Shift Knob
Automatic Climate Control
Body-Color Exterior Mirrors
Body-Color Exterior Door Handles
*Electroluminescent Gauges
*Tilt and Telescope Steering Column
2008 New Model Update (Module 917)
11
August 2007
WRX PREMIUM PACKAGE MODEL UPGRADE
IMPREZA WRX PREMIUM PACKAGE (KJ)
MODEL UPGRADE FROM IMPREZA WRX (FF)
AM/FM 80 Watt Stereo with 6-disc in-dash CD-changer
*10 Audio Speakers
*Auxiliary Audio Jack
*MP3/WMA Capability
*Heated Exterior Mirrors
*Dual Mode Heated Front Seats
*Windshield Wiper De-Icer
Front Fog Lights
*Leather-Wrapped Steering Wheel w/ Audio & Cruise Control Switches
*Aero Package
Front Lip Spoiler
Aerodynamic Side Ground Effects
Trunk Spoiler (4-Door)
Rear Diffuser (5-Door)
Note: Rear gate Spoiler Standard on all 5-door models
WRX SATELLITE RADIO & NAVIGATION PACKAGE MODEL UPGRADE
IMPREZA WRX SAT/NAV PACKAGE (UJ)
MODEL UPGRADE FROM WRX PREMIUM PACKAGE (KJ)
*Touch-Screen GPS Navigation System
*AM/FM 100 Watt Stereo with Single CD Player
*Factory Installed SIRIUS Satellite Radio with Roof Mounted Antenna
2008 New Model Update (Module 917)
12
August 2007
INTERIOR
Steering Wheel
The steering wheel is equipped with audio and
cruise control satellite switches.
Heater Switches
Two position seat heater switches are located
behind the park brake lever.
HVAC and Navigation System
HVAC Controls
2008 Impreza Ignition Key - Laser Cut
2008 Impreza models’ ignition keys are laser
cut and require a special key cutting machine
for duplication or replacement.
NOTE: THE PROCEDURE FOR
OBTAINING A DUPLICATE OR
REPLACEMENT KEY WILL BE
POSTED ON SUBARUNET.COM
IN THE NEAR FUTURE.
13
14
15
16
17
2008 New Model Update (Module 917)
13
August 2007
Driver Seat
The front seats are equipped with side airbags
and seat belt pretensioners. The seats are
adjustable manual type.
Rear Seat
The rear seats are set at a 26° (degree) angle
to provide additional leg room.
60/40 Split Seats
Cargo Space with Seats Backs Down
A 60/40 split and trunk through feature is
provided.
Position of Luggage Cover
18
19
20
21
22
2008 New Model Update (Module 917)
14
August 2007
Release Lever
The luggage cover is removed by pushing on
the release lever on the right side.
Cargo Area Light with Switch
A cargo area light is provided on the 5 door
on the driver's side rear trim panel and is
controlled by the white colored switch.
Spare Tire Area
The spare tire and tool kit are accessed by
removing the cargo area floor panel. The
metal cover forward of the spare tire provides
protection for the evaporative canister,
evaporative hoses and drain valve.
23
24
25
2008 New Model Update (Module 917)
15
August 2007
Navigation
Navigation Screen Starting Up
Navigation Screen Displaying Subaru Logo
The navigation system built by Kenwood
contains the display, controls, audio unit and
navigation computer. The system will display
the Subaru logo at each engine start and then
proceed to the start up screen.
Radio without Navigation
Agree Screen
The operation of the navigation system and
the info display is the same as past models.
(Except the controls are all located on the
Navigation unit.)
INFO DISPLAY Main Screen
SET Functions
26
27
28
29
30
31
2008 New Model Update (Module 917)
16
October 2007
Tilt /Eject Screen
The display of the Navi/Audio unit has a tilt
function that allows the screen to be adjusted
to 4 positions to allow for glare.
CD /DVD Drawer
Changing of the CDs is accomplished by
pressing the DVD/CD button. This will tilt the
display almost 90 degrees to allow for installing
or removing music CDs or DVDs. (DVDs will
only display while the vehicle is not moving.)
Pressing the map button will tilt the display 90
degrees and automatically eject the currently
installed Map disc.
A navigation system software disc (shipped
with the vehicle) must be installed before
the controls of the Navi/Audio system will be
displayed.
Press and HOLD the tilt button to open the unit
for software installation.
Map DVD Drawer
Showing Sensitivity if Obstructed to Close
The word “close” on the now vertical panel
of the display indicates that the close control
is located on the now horizontal panel of the
display. Pushing the button will close the
display to the last tilt setting. The display
close operation is load sensitive and will
stop the close function if the display panel is
obstructed.
32
33
34
35
2008 New Model Update (Module 917)
17
August 2007
Navigation Diagnosis
The Navi/Audio Unit contains a built in
diagnosis system. Start the engine and press
the agree button on the start up screen.
Audio Off Screen
Next press the {Audio/Sat} button and turn the
audio off.
NOTE: ALL OTHER FUNCTIONS MUST
ALSO BE OFF.
Next tap the screen on the LEFT side and then
the RIGHT.
Process of Activating Diagnostic Mode
THERE MUST BE A TOTAL OF SIX (6)
ALTERNATING TAPS TO ACTIVATE
DIAGNOSTIC MODE.
NOTE: WHEN THE VEHICLE IS
PLACED INTO REVERSE
GEAR THE RADIO VOLUME
IS AUTOMATICALLY TURNED
DOWN.
Dealer Diag Menu Screen
The Dealer Diagnostic Menu will now
activate.
Next press {Vehicle Signal Info.}
NOTE: DIAGNOSTIC INFORMATION IS
CURRENTLY ONLY AVAILABLE
IN VEHICLE SIGNAL INFO. AND
CONNECTION INFO.
Vehicle Signal Info. Provides the status of
the connections between the Navi/Audio Unit
and:
Controller Area Network Signals
CAN
BCU - (BIU)
METER - (Combination Meter)
AIR-Con - (Air Conditioning)
Vehicle Signals:
Illumination Control
Speed Signal
Reverse
Ignition
Parking (Brake)
36
37
38
2008 New Model Update (Module 917)
18
August 2007
Vehicle Signal Info. Screen
Pressing Menu will take you back to the Dealer
Diagnostic Menu.
Press {Connection Info.}
Connection Info. Screen
The only current connection is the Aux Input.
Press {Menu} to go back to the Dealer
Diagnostic Menu.
Press {Exit} to return to normal operation.
Navigation/Audio System
Navi/Audio System
Navi/Audio Top
The serial numbers for the Navi/Audio system
are located on top of the unit.
NOTE: A REMANUFACTURE
PROGRAM WILL BE POSTED
ON SUBARUNET.COM IN THE
NEAR FUTURE.
39
40
41
42
2008 New Model Update (Module 917)
19
August 2007
Back of Navi/Audio System
Navi/Audio Fan
A cooling fan is installed on the back side of
the unit.
Removing Navi/Audio System
When removing the Navi/Audio System it
may be necessary to reach from under the
center cooling vents to reach the electrical
connectors. The locking tabs of the connectors
are on the bottom side.
Satellite Radio Receiver
Placement of Satellite Receiver
The satellite radio receiver will be located
above the Navi/Audio system.
Antennae Wires Attached to Roof
43
44
45
46
47
48
2008 New Model Update (Module 917)
20
August 2007
Antennae Attached to Roof
The antennae wires for the Audio and Satellite
Radio are routed to the roof. The inner antenna
is for the Audio and the outer antenna is for
the Satellite radio receiver.
The antenna amplifier is built into the base of
the antennae assembly.
Satellite / Audio Antennae
Radio Antenna
Window
Window Assembly Top View
Window Assembly Bottom View
The power windows operate with an electric
motor/cable assemble.
Cable Guide
The lubrication installed during construction
and the low friction cable groove ensures
smooth window operation.
49
50
51
52
53
54
2008 New Model Update (Module 917)
21
August 2007
Window Switch Assembly
Removal of the power window assembly
and window glass is accomplished by first
removing the window switch assembly cover
and screw. Remove the switch assembly and
the two screws securing the door panel to the
door.
Removing Inner Trim
Remove the inner and outer trim panel.
NOTE: THE POWER WINDOW MOTOR
AND DRIVE SYSTEM CAN
BE REMOVED WITHOUT
REMOVING THE GLASS.
Removing Outer Trim
Remove the window channel upper mounting
nut.
Door Panel
Locking and Latch Cables
Separate the door panel from the door and
remove the locking and latch cable from the
door lever.
55
56
57
58
59
2008 New Model Update (Module 917)
22
August 2007
Door with Gasket in Place
Remove the speaker and separate the
harness clips from the door. Remove the door
gasket.
Removing Window Bolts
Connect the window switch to the harness and
raise the window so that the window mounting
bolts can be removed.
Bolts, Assist Tabs and Removal
The window motor/cable assembly can
be removed by removing the bolts and
disengaging the assist tabs from the door.
Remove the assembly through the indicated
opening.
Lower Window Channel Bolt
Remove the lower window channel bolt.
The window can now be removed, guiding it
to the outside of the door frame.
60
61
62
63
2008 New Model Update (Module 917)
23
August 2007
Turbo Model Combination Meter
All warning lights are illuminated during the time the sequential sweep takes place.
Turbo Model Key On Engine Off
NOTE: THE ODOMETER AND TRIP METER A B ARE DISPLAYED SEPARATELY.
64
65
2008 New Model Update (Module 917)
24
August 2007
Sedan Model (Naturally Aspirated)
Naturally Aspirated Model Combination Meter
All models are equipped with a sequential sweep and WRX models are equipped with sequential
illumination. The combination meter has an available D check procedure. Turbo models are
equipped with a temperature gauge and the Naturally Aspirated models are equipped with a
temperature warning light.
Temperature warning light logic
< 50°C (122°F) Blue
113°C (235°F) Red Blink
120°C (248°F) Red On
The Red indicator will turn off after the temperature has dropped to 111°C (232°F). The light
will change to blue after the temperature has dropped to 45°C (113°F). (BIU controlled)
66
67
2008 New Model Update (Module 917)
25
August 2007
HVAC Location
The air filter for the HVAC is located behind
the glove box.
Air Filter
Push up on the filter to remove it from the
blower housing.
Steering Support and Dash Assembly
The steering support beam and the dash
assembly are removed as a unit.
68
69
70
2008 New Model Update (Module 917)
26
August 2007
ELECTRICAL
Fuse Boxes and Relay Holders
Fuses and Relays are located in 4 places on the 2008 Impreza.
F27
19
20
18
21 22
7
4 5
6
3
14 15
16
17
10 11
12
13
2
1
98
RELAY HOLDER
F9
1
3 4
2
9
7 8
10
12 13
14
5
6
15 16
11
SECONDARY AIR RELAY HOLDER
The main fuse box in the
engine compartment has
expanded to accept the F9
secondary air relay holder.
F-27 relay holder has
been used on previous
models.
F-9 will not be installed on
naturally aspirated models.
Inside Main Fuse Box Cover
72 73 74
75
2008 New Model Update (Module 917)
27
August 2007
The F-9 secondary air relay and circuits control the secondary air pump equipped on turbo
models.
F9
GP
S
E
C
O
N
D
A
R
Y
A
IR
P
U
M
P
R
E
L
A
Y
F9F9
S
E
C
O
N
D
A
R
Y
A
IR
C
O
M
B
IN
A
T
IO
N
V
A
LV
E
R
E
L
A
Y
2
S
E
C
O
N
D
A
R
Y
A
IR
C
O
M
B
IN
A
T
IO
N
V
A
LV
E
R
E
L
A
Y
1
C: B136B: B135 ECM
A: F37 B: B143 D: B144
F11
SECONDARY
AIR PUMP
B
1
E/G(TB)-07 Q
E/G(TB)-09 Z
E/G(TB)-09 Y
B
B
1
5
R
B
B
1
4
R
C
8
R
G
W
2
BUS BAR
5 1
6
1
0
A
6
0
A
1
0
Y
L
8
7
L
9
R
1
2
Y
B
1
1
1
4
W
1
3
R
G
W
1
5
W
6
1
Y
L
3
4
R
2
R
B
MAIN FUSE BOX (M/B)
RB B2 RBA5
R B12 RA18
L B14 LA16
R D4 RA14
YB B9 YLA11
YB B10 YBA20
RG B4 RGA8
RELAY
HOLDER
F9
TO POWER SUPPLY CIRCUIT
W
MB-34
(B)
W
MB-33
(B)
Engine Wiring Schematic Showing F-9
76
2008 New Model Update (Module 917)
28
August 2007
B220 B225
13
14
15 16
17
27
24
25
26
20
21
22
23
29
30
3128 32 35
33
34
37
38
3936 40
8
9
10
11 12
1 2
5
3 4
7
6
19
18
RELAY BLOCK
Fuse Box Next to Hood Release Relay Block B220 and B225
The fuse box located next to the hood
release houses the fuses below.
B225 has also been equipped on previous
models and relay block B220 which is new
has the same shape
Inside Fuse Box Cover
77 78
79
2008 New Model Update (Module 917)
29
August 2007
B220 B225
13
14
15 16
17
27
24
25
26
20
21
22
23
29
30
3128 32 35
33
34
37
38
3936 40
8
9
10
11 12
1 2
5
3 4
7
6
19
18
RELAY BLOCK
B386
76
2 3 4
5
1
Relay Block B220 and B225 B386 Houses the Blower Relay
Location of B220
B220 is located behind the glove box and next to the left side of the blower motor housing.
NOTE: THE CIRCLED CONNECTOR IS THE INSPECTION MODE CONNECTOR.
80 81
82
2008 New Model Update (Module 917)
30
August 2007
Driver Side Kick Panel
A set of connectors at the driver side kick panel looks identical to the inspection mode
connectors but they must stay connected.
83
2008 New Model Update (Module 917)
31
August 2007
*2 : GB: WR
: MT MODEL
AT MODEL
: MT MODEL
AT MODEL
: MT MODEL
AT MODEL
*3 : WB: WR
*1 : LW: WL
TO POWER SUPPLY CIRCUIT
ST-2
IG SW
(ST)
MB-22
SBF-5
(B)
MB-24
SBF-7
(B)
MB-23
SBF-7
(B)
C
3
2
C
2
0
C
3
1
A
7
B
2
C
2
1
C
1
W
B
W
L
W
L
W
R
W
R
3
4
W
L
W
R
2
W
Y
1
W
Y
B220
FUSE
(RELAY
BLOCK)
B220
IG
RELAY
W
L
3
9
4
0
L
g Y
B
3
8
W
L
3
7
B220
MAIN
RELAY
W
R
1
1
1
2
L
g W
B
1
0
W
R
9
B220
A/F,
OXYGEN
SENSOR
RELAY
E/G(NA)-05B
E/G(NA)-05D
E/G(NA)-10E
E/G(NA)-09F
12
7
P R N D
BW
BY12
11WB
WR
T3 T7B12
B106 INHIBITOR
SWITCHCLUTCH
SWITCH
B
L 3 *
W
L
1
1
1
2
1
0
W
B
9
B225
STARTER
RELAY
A
T
A
T
A
T
A
T
MT MT
MT
M
T
A
T
M
T
B
L 2 *1 * YBYBRLLR
WB
B14
B25 T2 T2 B25
2GB 1 BL
Y
B
3
1
3
2
R
L
L
R
3
0
W
L
2
9
STARTER MOTOR
BATTERY
B220
ELECTRONIC
THROTTLE
CONTROL
RELAY
NEUTRAL
POSITION
SWITCH
LW
2
W
L
1
B: B135 C: B136A: B134 ECM
15
A
15
A
C
2
3
W
R
5
6
W
L
W
L
2
3
2
4
L
g G
R
2
2
W
L
2
1
L
g 15
A
E/G(NA)-09C
ST-1
F/B FUSE NO. 21
(ST)
B220 Relay Circuits
84
2008 New Model Update (Module 917)
32
August 2007
G
O
r i16 A/C CONTROL PANEL
3
L
g W
10 4
B
L
TO POWER SUPPLY CIRCUIT
G
L
BLOWER
MOTOR
RELAY
V
Y
G
O
r L
g W
B
L
4
B
R
5
B386
BLOWER
MOTOR
BLOWER
FAN
SWITCH
B87
INTAKE DOOR
ACTUATOR
B163
2
G
O
r G
L
1
V
Y
G
Y
B
O
r 1
B
1
B
R
2
4 6
1
B
O
r B
Y
B
rY BLOWER
RESISTOR
B27
3
G
Y
2 1
4
9
G
O
r M-A/C-01 A
L
g W
L
g W
7
B
L
B
L
8
B36
i1 G
Y
G
Y
27
LY
B
Y
28
B
O
r B
O
r 23
B
rY B
rY 24
B36
i1 B36
i1 5 6 3 2 4
i15
1
2
OFF
3
4
M
-A
/C
-0
2
B: B135
ECM
B
11
G
Y
REF. TO GND
[GND-07]
B
6
R
L
R
E
F.
T
O
R
E
A
R
D
E
F
O
G
G
E
R
S
Y
S
T
E
M
[R
/D
E
F
-0
1
]
11
B89
BLOWER
DIODE
VYGY 12
V
Y
B386
76
2 3 4
5
1
FB-45
F/B FUSE NO. 22
(IG)
FB-8
F/B FUSE NO. 27 (B)
F/B FUSE NO. 28 (B)
B386 Blower Motor Relay Wiring Schematic and B386 Relay Circuit
85
2008 New Model Update (Module 917)
33
August 2007
BODY INTEGRATED UNIT (BIU)
BIU Location
The BIU is located to the lower side of the steering column.
Body Integrated Unit
- Location: steering shaft, position similar to current Legacy
- Hardware and functions based on Legacy
- CAN system
- Immobilizer operation
- Timer controls for wipers and room lamps
- Door lock control
Body Integrated Unit Customizing
(New Items)
- MT / AT: disable or enable Key inter lock, shift lock
- 6 MT / Other than 6 MT: Allows speed sensor signal from 6 MT to serve as an input for
VDC.
- Sedan / Wagon: disable or enable the electrical lock of R. Gate
87
2008 New Model Update (Module 917)
34
August 2007
Lighting Switch
No parking switch is available.
During DRL operation only the front lights are illuminated. The DRL resistor is located under
the right side head light.
Headlight Operation
Condition Explanation of condition Headlights switch condition needed to
turn on headlights or parking lights
Normal Ignition or Engine ON Turn switch to ON
Key In Ignition OFF A. Lights turn ON when key is placed into the
ignition switch. (Lights were on when the
key was last removed.)
B. Turn switch to ON
Key Out A. Turn switch to On
B. Turn switch OFF then ON
NOTE: BUZZER SOUNDS IN THIS MODE
WHEN THE DRIVER'S DOOR IS
OPEN
Automatic Transmission models - DRLS DO NOT OPERATE IN PARK.
All models parking brake on - DRLS DO NOT OPERATE.
WRX models have a headlight on indicator, other models DO NOT.
Keyless Entry Unit
Construction: Same as Legacy
Application: Normal key model
The unit receives wireless signal.
Detected signal goes to BIU.
Keyless entry unit is located on the driver side C pillar (5 door) and on the top of the package
shelf on sedan models.
2008 New Model Update (Module 917)
35
August 2007
MULTI JOINT CONNECTOR
Location of Multi Joint Connector Releasing Multi Joint Connector
Connector Side of Multi Joint Connector
The 12 connector Multi Joint Connector is located on the top of the fuse box and is used on
2008 Impreza models that are not equipped with the Smart Start System. The Smart Start
System is equipped on certain European and Japanese domestic models and provides a
keyless entry and starting system.
89
90
91
2008 New Model Update (Module 917)
36
August 2007
Front View-Multi Joint Connector
Back Side Cover Removed-Multi Joint Connector
92
93
2008 New Model Update (Module 917)
37
August 2007
Multi Joint Connector
The Multi Joint Connector completes the circuits of many systems providing power and carrying
signals.
There is currently no designation for the Multi joint connector.
1 2
C
D
GB-6
B40
B32
AB2
B65
B367
B225
B123
B445
B444
B443
B442
B441B435
B436
B437
B438
B439
B440B434
B231B99
B124
B364
B363
B181
B182
B437
1 2 3 4 5
B439
(BLUE)
(GREEN)
Multi Joint Connector (line Art) Connector Colors
94
95
96
2008 New Model Update (Module 917)
38
August 2007
L
B
G
Y
R
L
WIPER
DEICER
RELAY
WIPER
TO POWER SUPPLY CIRCUIT
G
Y
3
5
L
B
LR
Y
3
3
3
4
3
6
B225
R
Y
1
B38
i3 V
G
D
1
6
L
D
1
5
BODY INTEGRATED UNIT
i84A: B279D:
G
R
B
1 R
L
R
L
1
2
MULTI JOINT CONNECTOR
B440 B439
GYGY 51
V
G
G
R
B280B:
FB-4
F/B FUSE NO. 9
(B)
FB-38
F/B FUSE NO. 12
(IG)
MB-5
M/B FUSE NO. 10
FB-32
F/B FUSE NO. 4
(IG)
MB-6
REAR DEFOGGER
RELAY
Wiper Deicer Wiring Schematic
97
2008 New Model Update (Module 917)
39
August 2007
NAVIGATION UNITi50
4
G
r 1
7
P
G
G
r P
G
G
r P
G
5
B
rY B
rY B
rY R
E
F.
T
O
B
A
C
K
-U
P
L
IG
H
T
S
Y
S
T
E
M
[B
A
C
K
/L
-0
1
]
B36
i1 R98
i53
2 1 9
B38
i3 PARKING
BRAKE
SWITCH
R4
R3
B99
P
G
G
r G
r 2
3
B301
G
r 5
P
G
3
3
B310
VDC
ABS
CONTROL
MODULE
VDC
CONTROL
MODULE
A
B
S
B437
B439
M
U
LT
I
J
O
IN
T
C
O
N
N
E
C
T
O
R
G
r G
r 3
3
Navigation Unit Wiring Schematic
98
2008 New Model Update (Module 917)
40
August 2007
BB
C
2
0
B
1
7
MB-27
M/B FUSE NO. 13
(B)
FB-32
F/B FUSE NO. 4
(IG)
B
Y
D
2
7
R
L
B281C:B280B:
V
RWG
Y
W
L
B
rR V
R
3
R
L
2
G
Y
14
B367
B40
8
B
Y
7
B
8
B
2
0
SEC-01 A
SEC-01 B
W
VR
16
GY8
7
BL5
BL4
B
Y B
B
Y
A
2
8
B
Y
B279D:
i97
B
Y
B
Y
*1
*1
B438 B443
B440
GYGY 1
G
Y
1
5
B440
B444
B434
VRVR 2
V
R
3
2
A: i84
TO POWER SUPPLY CIRCUIT
MULTI
JOINT
CONNECTOR
DATA LINK
CONNECTOR
R
E
F.
T
O
E
N
G
IN
E
E
L
E
C
T
R
IC
A
L
S
Y
S
T
E
M
[E
/G
(N
A
)-
0
4
]
[E
/G
(T
B
)-
0
5
]
IMPACT
SENSOR
MULTI
JOINT
CONNECTOR
JOINT
GROUND
CONNECTOR
BODY INTEGRATED
UNIT
Security System Wiring Schematic
99
2008 New Model Update (Module 917)
41
August 2007
SUPPLEMENTAL RESTRAINT SYSTEM (SRS)
2008 Impreza SRS standard equipment includes frontal dual deployment airbags, side airbags,
curtain airbags and front seat belt pretensioners. WRX models are equipped with front seat
active headrest.
A new satellite safing sensor and the SRS sensor BUS improve the accuracy of collision
judgment and SRS airbag system operation.
The SRS sensor BUS carries signals from all sensors to the SRS control unit. The signals, similar
to CAN communications, provide circuit and sensor conditions to the SRS control unit.
As a result of the improved system operation new DTCs have become available.
(See next Page)
Ft Ft ECU
C
S
C
Front
Sensor
Side
Airbag
Sensor
Curtain
Airbag
Sensor
Satellite
Safing
Sensor
B
B
Satellite Safing Sensor Schematic
Satellite Safing Sensor Location
101
102
2008 New Model Update (Module 917)
42
August 2007
E2
E3
E4
Front Sensor Bus RH Communication
error
• Open or short circuit in harness (RH) between airbag control module and front sub sensor.
• Front sub sensor (RH) is faulty.
• Airbag control module is faulty.
E6
E7
E8
Front Sensor Bus LH Communication
error
• Open or short circuit in harness (LH) between airbag control module and front sub sensor.
• Front sub sensor (LH) is faulty.
• Airbag control module is faulty.
E9
EA
EB
EC
Side Sensor Bus RH Communication
error
• Open or short circuit in harness (RH) between airbag control module and side sensor.
• Side airbag sensor (RH) or curtain airbag sensor
(RH) is faulty.
• Airbag control module is faulty.
ED
EE
Side Sensor Bus RH Communication
error
• Open or short circuit in harness (RH) between airbag control module and side sensor.
• Side airbag sensor (RH) or curtain airbag sensor
(RH) is faulty.
• Airbag control module is faulty.
DTC Display Diagnosis content
F1
F2
F3
F4
Side Sensor Bus LH Communication
error
• Open or short circuit in harness (LH) between airbag control module and side sensor.
• Side airbag sensor (LH) or curtain airbag sensor
(LH) is faulty.
• Airbag control module is faulty.
F5
F6
Side Sensor Bus LH Communication
error
• Open or short circuit in harness (LH) between airbag control module and side sensor.
• Side airbag sensor (LH) or curtain airbag sensor
(LH) is faulty.
• Airbag control module is faulty.
F8
F9
FA
Satellite Sensor Bus Communication
error
• Open or short circuit in harness between airbag
control module and satellite safing sensor.
• Satellite safing sensor is faulty.
• Airbag control module is faulty.
3A Front Sub Sensor RH False installation
• Front sensor (RH) is misinstalled.
• Airbag control module is faulty.
3B Front Sub Sensor LH False installation
• Front sensor (LH) is misinstalled.
• Airbag control module is faulty.
3C Satellite Sensor Bus failure Satellite safing sensor is faulty.
3D Satellite Sensor False installation • Satellite safing sensor is misinstalled.
• Airbag control module is faulty.
5A Side Airbag Sensor RH False installation
• Side A/B sensor is misinstalled.
• Airbag control module is faulty.
5B Side Airbag Sensor LH False installation
• Side A/B sensor is misinstalled.
• Airbag control module is faulty.
5C Curtain Airbag Sensor RH False
installation
• Curtain A/B sensor is misinstalled.
• Airbag control module is faulty.
5D Curtain Airbag Sensor LH False
installation
• Curtain A/B sensor is misinstalled.
• Airbag control module is faulty.
2008 Airbag Trouble Codes
103
2008 New Model Update (Module 917)
43
August 2007
AB28
Y
R
2
Y
L
1
AB26
Y
W
5
Y
G
6
Y
W Y
G
AB33
AIRBAG CONTROL MODULE
PRETENSIONER
RH
B
1
G
2
L
3
W
4
G B
CURTAIN AIRBAG
MODULE RH
CURTAIN AIRBAG
SENSOR RH
Y Y
B
AB34AB24
SIDE AIRBAG
MODULE RH
SIDE AIRBAG
SENSOR RH
Y Y
B L W
18 17
Y
R
4
Y
L
3 87
AB18
B
16
L
g 24
R
E
F.
T
O
O
C
C
U
P
A
N
T
D
E
T
E
C
T
IO
N
S
Y
S
T
E
M
[O
D
S
-0
1
]
3 43 2 1 2
Airbag Wiring Schematic
Connector Lock release tab White Locking Plate
The connector at the SRS/Control unit unifies the body harness and the two SRS harnesses.
Push down on the indicated tab and pull outward on the connector lock to release from the
control unit.
Remove or loosen the white locking plate and apply pressure at the indicated release tab to
disengage the connectors from the connector collar.
104
105 106
2008 New Model Update (Module 917)
44
August 2007
EVAPORATIVE SYSTEM
Carpet Location Tabs
Sliding Lock Tabs
When removing the carpet from the rear of the
vehicle the right side is fastened with a sliding
lock and left side by simple trim panel tabs.
Releasing of the sliding locks is accomplished
by pushing it to the right and sliding to the
back.
WRX Rear of Vehicle with Carpet Removed
Sedan Trunk
Sedan Covers over Evaporative Canister and
Evaporative Hoses
Removing the two metal covers from the cargo
or trunk area will expose the evaporative
canister, evaporative hoses and the drain
valve. This applies to the 5 door and the Sedan
models.
108
109
110
111
112
2008 New Model Update (Module 917)
45
August 2007
Drain Valve
The drain valve is equipped with an air filter,
and cannot be serviced separately from the
filter.
Quick Connectors
When disengaging the quick connectors of the
evaporative system, slide them back about
half way.
Evaporative System Hose Connection
Sliding them too far will require resetting the
locking tabs into the channels made into
the hose connection. The quick connector
provides a locking action by placing one tab
in front and one tab behind a locking collar.
When beginning the release procedure use
a small screw driver and gently pry each side
away from the center of the quick connector
while pulling back.
113
114
115
2008 New Model Update (Module 917)
46
August 2007
Hose Connections
Hose Connections
116
2008 New Model Update (Module 917)
47
August 2007
Hose A and B
Hose B Hose B
Hose A and B connect the drain valve to the atmosphere.
117
118 119
2008 New Model Update (Module 917)
48
August 2007
Hose C and D
Hose C Hose D
Hose C and D connect the drain valve to the evaporative canister.
120
121 122
2008 New Model Update (Module 917)
49
August 2007
Hose E and F
Hose E Hose F
Hose E and F connect the evaporative canister to the fuel tank. (ORVR)
123
124 125
2008 New Model Update (Module 917)
50
August 2007
Hose G and H
Hose G Hose H
Hose G and H connect the evaporative canister to the fuel tank. (Purge in to canister)
126
127 128
2008 New Model Update (Module 917)
51
August 2007
Hose I
Hose I connects the evaporative canister to the purge control valve.
Pressure Sensor
The fuel tank pressure sensor is located on the right rear of the fuel tank.
129
130
2008 New Model Update (Module 917)
52
August 2007
FUEL TANK
Main Fuel Pump
WRX Fuel Pump Control Unit
Fuel Tank
The fuel tank is equipped with a main and sub
fuel pump. The fuel level must be lowered
according to the service manual before the
pumps can be removed. A fuel drain is not
provided on the tank.
The fuel pump control unit (if equipped) is
located behind the right rear cargo area trim
panel.
132
133
134
2008 New Model Update (Module 917)
53
August 2007
AUTOMATIC TRANSMISSION
Changes/Enhancements
Detent roller with needle bearing is newly adopted in order to reduce frictional force
between the detent roller and the manual plate.
Shifter inputs to BIU and BIU controls shift lock solenoid.
All wheel drive has changed from Variable Torque Distribution (VTD) to Multiple plate
Transfer (MPT).
Differential Gear Ratio
2.5 NA 5 MT 3.900
4 AT 4.111
2.5 Turbo 5 MT 3.900
4 AT 3.900
Differential Gear Ratio chart
Gear Ratio
1st 2.785
2nd 1.545
3rd 1.000
4th 0.694
Reverse 2.272
Gear Ratio chart
Air Bleeding Procedure (4AT without push start)
Condition
This procedure should apply after the services below.
Replacement of transmission
Replacement of control Valve body
Overhaul of transmission
Conditions needed
– Lifting-up the vehicle and apply the parking brake.
– Turn on ignition key and connect SSMIII.
– Confirm No DTC and ATF temperature is less than 60°C (140°F) with SSMIII.
Confirm no electrical load (Headlight, A/C, Rear defogger, etc.)






136
137
2008 New Model Update (Module 917)
54
August 2007
Procedure
1. Shift the select lever to “P” position and apply parking brake firmly.
2. Lift-up the vehicle
3. Connect SSM to data link connector
4. IG switch ON, engine should not run.
5. Start SSMIII and select Transmission in Each system, Perform "Clear Memory 2”.
6. Confirm there is no DTC.
7. Show “Normal Data Display” of transmission.
– Confirm ATF temperature: below 60ºC (140°F) with SSMIII.
8. Shift the selector lever to “R” position.
9. Turn the ignition switch to “OFF” position.
10. Wait until ACC power goes off and “Communication Failed!” is displayed on the display
(aprox. 30 to 40 seconds)
– Select “OK” and prompt appears to save data, please ignore.
– Return to system selection menu.
11. Depress the brake pedal fully by left foot.
(Retain its position until the Air breeding procedure is finished).
12. Turn on the ignition switch.
13. Shift the selector lever to “P” range and wait for 5 seconds.
14. Shift the selector lever to “R” range and wait for 5 seconds.
15. Shift the selector lever to “N” range and wait for 5 seconds.
16. Shift the selector lever to “D” range and wait for 5 seconds.
17. Shift the selector lever to “N” range and wait for 5 seconds.
18. Slowly depress the accelerator pedal fully.
19. Slowly release the accelerator pedal fully.
20 Start the engine.
21. Shift the selector lever to “D” position.
22. Start SSMIII and select “Transmission” in “Each system”.
23. The TCM starts the process, when the “SPORT” indicator light starts blinking at 2Hz.
When the air bleeding process is finished, the “SPORT” indicator light goes off.
If the “SPORT” indicator light does not start blinking or if blinking of the “SPORT” indicator
light changes from 2Hz to 4Hz, repeat the procedure from step 4.
24. Turn off the ignition key and wait 20 second.
25. Shift the select lever to “P” position.


2008 New Model Update (Module 917)
55
August 2007
Initial-Learning Procedure (4AT without push start)
This procedure should apply when there is shift shock or after the services below.
– Replacement of TCU
– Replacement of transmission
– Overhaul of transmission
– Replacement of control valve body
– After performing “Memory clear 2”
Procedure
1. Shift the select lever to “P’” position and apply parking brake firmly.
2. Lift-up the vehicle
3. Connect SSMIII to data link connector
4. IG switch ON, engine should not run.
5. Start SSMIII and select Transmission in Each system
6. Perform the "Clear Memory 2”.
7. Confirm there is no DTC.
8. Show “Normal Data Display” of transmission.
Confirm ATF temperature: 60ºC - 90ºC (140ºF - 194ºF) by SSMIII.
9. Shift the selector lever to “R” position
10. Confirm no electrical load (Headlight, A/C, Rear defogger, etc.)
11 Turn the ignition switch to “OFF” position.
12. Wait until ACC power goes off and “Communication Failed!” is displayed. (aprox. 30 to
40 seconds)
– Select “OK” and prompt appears to save data, please ignore.
– Return to system selection menu.
13. Depress the brake pedal fully by left foot.
(Retain its position until the initial-learning procedure is finished).
14. Turn on the ignition switch and Start SSMIII
15. Select “Transmission” in “Each system” and select “Normal Data Display”.
16. Shift the selector lever to “P” range and wait for 5 seconds.
17. Shift the selector lever to “R” range and wait for 5 seconds.
18. Shift the selector lever to “N” range and wait for 5 seconds.

2008 New Model Update (Module 917)
56
August 2007
19. Shift the selector lever to “D” range and wait for 5 seconds.
20. Shift the selector lever to “N” range and wait for 5 seconds.
21. Slowly depress the accelerator pedal fully.
22. Slowly release the accelerator pedal fully.
23. Start the engine.
24. Shift the selector lever to “D” position.
The TCM starts the process, when the “SPORT” indicator light starts blinking at 2Hz.
When the air bleeding process is finished, the “SPORT” indicator light goes off.
If the “SPORT” indicator light does not start blinking or if blinking of the “SPORT” indicator
light changes from 2Hz to 4Hz, repeat the procedure from step 4.
25.Shift the selector to "N" position and turn off the ignition key.
26. Shift the selector lever to "P" position and wait 20 seconds.



2008 New Model Update (Module 917)
57
August 2007
MANUAL TRANSMISSION CHANGES/
ENHANCEMENTS
ledomobruTledomobrut-noNledoM
esrever-1dnahsemorhcnyshtiwsdeepsdrawrof-5epyT
Transmission gear ratio
661.3454.3ts1
288.1260.2dn2
692.1844.1dr3
279.0880.1ht4
837.0087.0ht5
333.3esreveR
Front reduction gear Final
diopyHraegfoepyT
009.3oitarraeG
Rear reduction gear
Transfer
lacileHraegfoepyT
000.1oitarraeG
Final
diopyHraegfoepyT
009.3oitarraeG
Front differential Type and number of gear Straight bevel gear (Bevel pinion: 2, Bevel gear: 2)
Center differential Type and number of gear Straight bevel gear (Bevel pinion: 2, bevel gear: 2 and viscous coupling)
5-LGlioraegnoissimsnarT
5.3yticapaclioraegnoissimsnarT l (3.7 US qt, 3.1 Imp qt)
Manual Transmission Chart
5 MT Speedometer gear is deleted and wheel speed signal is taken from ABSCM.
139
2008 New Model Update (Module 917)
58
August 2007
Improvement of 1st - 2nd gear shift feeling
In order to reduce shifting friction, two detent balls are used instead of key springs.
Difference of Detent Balls and Key Springs
NOTE: Only two detent balls are used on the 1st and 2nd gear hub.
Detent Ball in place Detent Ball front/rear view
1st and 2nd slider 1st and 2nd Hub
140
141 142
143 144
2008 New Model Update (Module 917)
59
August 2007
6 SPEED MANUAL TRANSMISSION (2008)
Construction
Oil Sump
The 6 MT for 2008 model year has replaced the oil pump with oil guides. The oil pump pick
up screen has been deleted.
The oil guides are positioned to catch oil splashed by moving gears and provides a path for
the oil to flow, lubricating bearings, bushings and all moving parts inside the transmission.
NOTE: THERE HAS BEEN NO CHANGE IN THE POSITION OF THE BUSHINGS AND
THE OILING DELIVERY HOLES MACHINED IN THE MAIN AND HOLLOW
SHAFTS.
146
147
2008 New Model Update (Module 917)
60
August 2007
Front Oil Guides
Oil splashed in the differential is delivered from
the pinion oil guide to the pinion bearing, 1st
gear and 2nd gear bushings, sliders, gears and
all moving parts of their gear sets.
The front main shaft bearing is lubricated by
the front main case oil guide.
Previous Oil Pump
The main case is equipped with three (3) oil
guides.
Main Case Oil Guides
The two (2) on the left side carry oil to the rear
main shaft and hollow shaft bearings.
Main Case Oil Guides Close up
The one (1) on the right side carries oil to
the extension housing. An oil guide in the
extension housing routes oil to the transfer
driven shaft bushing.
Extension Housing Oil Guide
148
149
150
151
152
2008 New Model Update (Module 917)
61
August 2007
Friction Tab
Clip
Bolts
Main Case Oil Guides Bench Shot
The oil guides are positioned into place by
friction, bolts and incorporated clips.
Use care when removing the oil guides from
the transmission.
Clip
153
154
155
156
157
2008 New Model Update (Module 917)
62
August 2007
End Plate
Bearing end plate, previously the oil pump
cover.
Previous Oil Pump location
New case design, no oil pump.
158
159
2008 New Model Update (Module 917)
63
August 2007
5AT MAJOR MODIFICATION POINTS
5 Speed Automatic Transmission
The 2008 5AT for Legacy and Tribeca has been redesigned to improve performance. The
modification points include the Torque Converter, Hydraulic Control Valve assembly, Low
Coast Brake and Forward one-way clutch.
161
2008 New Model Update (Module 917)
64
August 2007
Artwork
Low Coasting Brake and Forward one-way clutch are eliminated for simplifying the system
and improving shift quality
162
2008 New Model Update (Module 917)
65
August 2007
Application Chart
Fr/B In/C H&LR Di/C Rev/B FWD/B OWC 1st OWC 3rd LC/B OWC fwd
P o o
R o o o o o
N o o
1st o M o o o M o
2nd o o o o M o
3rd o o o o o o
4th o o o o o
5th o o o o o o
Fr/B In/C H&LR Di/C Rev/B FWD/B OWC 1st OWC 3rd
P o o
R o o o o o
N o o
1st o M o o o
2nd o o o o
3rd o o o o o
4th o o o o
5th o o o o o
Application Chart
Artwork (showing differences in what is deleted)
A forward brake hub guide plate and a seal ring are deleted, due to deletion of Low Coasting
Brake and Forward One-Way clutch.
163
164
2008 New Model Update (Module 917)
66
August 2007
Hydraulic Control Valve
Mounting Bolts
The memory box has been deleted from the Hydraulic Control Valve Assembly. Memory box
functions are now incorporated into the Transmission Control Module (TCM).
165
166
2008 New Model Update (Module 917)
67
August 2007
Transmission Harness
Torque Converter
167
168
2008 New Model Update (Module 917)
68
August 2007
Differential Case cut view
Drain valve is deleted due to change of converter.
Drive Plate
Drive plate is changed due to change of torque converter.
169
170
2008 New Model Update (Module 917)
69
August 2007
Drive Pinion Shaft and ATF Level Gauge
Drive Pinion Shaft
New type hollow pinion shaft is employed to improve rigidity. (Turbo charged engine vehicle)
ATF Level Gauge
ATF level gauge is changed due to change of hydraulic control valve.
Others
Transmission Control Module (TCM)
With the adoption of the new hydraulic control valve assembly, TCM is changed.
Blipping control: (in Turbo charged engine vehicle)
Blipping control range is enlarged
TCM initial learning procedure.
Procedure for TCM initial learning is simplified.






171
172
2008 New Model Update (Module 917)
70
August 2007
2.5 LITER AIR
CONDITIONING BELT
The air conditioning compressor drive belt is
a new stretch type belt. It is designed to be
installed to the vehicle only once and must be
replaced if it is ever removed. The use of this
type belt makes it unnecessary to use a belt
tensioner.
Air Conditioning Compressor Belt front View
Air Conditioning Compressor Belt from under car
WRX Engine
Sedan Engine
Servicing of the belt requires removing of
the alternator/power steering belt (this belt
has a tensioner) and then cutting the old air
conditioner compressor drive belt with wire
cutters of a similar tool. (Applicable to both
Naturally Aspirated and Turbo models)
174
175
176
177
2008 New Model Update (Module 917)
71
August 2007
Cutting off Air Conditioning Compressor Belt
The new belt is packaged with the tool needed
to install the belt. This tool is designed to be
used only once and can be discarded after
belt installation.
Upper Belt Guide in position
Begin belt installation by routing the new belt
around the compressor pulley. Install the upper
belt guide with the packaged bolt. Ensure
the positioning tab of the upper belt guide is
inserted into the lower hole.
Lower Belt Guide in place with Retaining Clip
Next position the lower belt guide on the
crankshaft pulley. The grooves on the bottom
of the lower belt guide must rest in the grooves
of the crankshaft pulley. The metal retaining
clip is then inserted into one of the holes on
the front side of the crankshaft pulley. The
retaining clip has a short and long side. The
longer side is placed over the lower built guide
and over the belt.
22mm Socket and Ratchet in place
Rotate the crankshaft pulley with a 22mm
socket and ratchet until the belt is fully engaged
with the grooves on the crankshaft pulley.
178
179
180
181
2008 New Model Update (Module 917)
72
August 2007
Belt Fully Engaged on Crankshaft Pulley
Confirm belt is fully engaged on both pulleys.
Air Conditioning Compressor Belt Kit
182
183
2008 New Model Update (Module 917)
73
August 2007
CHASSIS
G Sensor
Incline Start Assist
Impreza vehicles with manual transmission are equipped with “Incline Start Assist”. This is a
type of hill holder but only stays active for approximately 1 second after the brake pedal has
been released. This logic control affects the Hydraulic Control Unit, maintaining brake pressure
at the wheels using the inlet and outlet solenoid valves. The G sensor will indicate the angle of
the incline to the HCU and the brake pressure set by the driver will be held for approximately
1 second after releasing the brake pedal. This allows the driver to increase the throttle and
engage the clutch. (Pressure is maintained on all four wheels).
Brake Pedal Off and Brakes Releasing
185
186
2008 New Model Update (Module 917)
74
August 2007
Engine Undercover
The engine undercover must be removed to
change the oil and or filter.
Under Cover Off
Suspension
Front Suspension
The front suspension is now a box type (same
as Legacy) and the sub frame has been
eliminated. The front axle inner joint is an AAR
type (Angular Adjusting Roller) and the outer
joint is unchanged from last year's model.
Rear Suspension
The rear suspension is a single wish bone
type. (Same as Tribeca)
The rear axle inner joint is a DOJ (Double off
set Joint) and the outer joint is an EBJ (Eight
Ball Joint)
187
188
189
190
2008 New Model Update (Module 917)
75
August 2007
Muffler
Transverse Mounted Muffler
A transverse mounted muffler is used on the 5
door models due to the shortened body over
hang.
Tire Pressure Monitoring System
Wheel with TPMS
Close up of TPMS
The Tire Pressure Monitoring System (TPMS)
operates similar to past model year vehicles.
The transmitter is now serviceable separately
from the tire valve. Remove and install
the screw connecting the tire valve to the
transmitter with a T-10 Torx® bit.
TPMS under Canister
The TPMS control unit now identifies tires by
numbers.
191
192
193
194
195
2008 New Model Update (Module 917)
76
August 2007
Item Valve Unit
Tire 1 FN code LEARN
Tire 2 FN code LEARN
Tire 3 FN code LEARN
Tire 4 FN code LEARN
Tire 1 air pressure 33.19 psig
Tire 2 air pressure 31.79 psig
Tire 3 air pressure 31.59 psig
Tire 4 air pressure 31.79 psig
Vehicle Speed 0 MPH
Pressure warning 26.99 psig
Return pressure 30.39 psig
Transmitter power supply ON MODE
DIAG sw OFF
INDICATOR LAMP OFF
TPMS Data
During shipment to the port the TPMS transmitters are turned off. The port turns the transmitters
on with the tool number J-45295. This is the same tool used during tire registration.
Tow Hooks and Tail Light
Front Tow Hook
Front and Rear tow hook connections. The rear tie down hooks have been eliminated and
vehicle is shipped to the port and to the dealer using the rear tow hook connection and tow
hook. Place the tow hook back to the tool storage during PDI.
196
197
2008 New Model Update (Module 917)
77
August 2007
Rear Tow Hook
Front View of the 5 Door Brake Light
Back View of the 5 Door Brake Light
The brake light of the 5 door model is a 12 LED
assembly that must be replaced as a unit.
The remaining lights are replaceable bulbs.
198
199
200
78
August 2007
Slide Sequence
Slide No. Description Page No.
1 Title Slide (2008 New Model Update Models)
2 Created By
3 Teaching Aids
4 2008 Impreza Introduction 6
5 2008 2.5i Impreza 5 Door Front View 6
6 2008 2.5i Impreza 5 Door Side View 6
7 2008 2.5i Impreza Side View 6
8 2008 Impreza 2.5i 4 Door Side View 6
9 2008 WRX Front View 7
10 2008 WRX Side View 7
11 Dimension Chart 7
12 Title Slide (Interior) 12
13 Steering Wheel 12
14 Heater Switches 12
15 HVAC and Navigation System 12
16 HVAC Controls 12
17 2008 Impreza Ignition Key - Laser Cut 12
18 Driver Seat 13
19 Rear Seat 13
20 60/40 Split Seats 13
21 Cargo Space with Seats Backs Down 13
22 Position of Luggage Cover 13
23 Release Lever 14
24 Cargo Area Light with Switch 14
25 Spare Tire Area 14
26 Navigation Screen Starting Up 15
27 Navigation Screen displaying Subaru Logo 15
28 Radio without Navigation 15
29 Agree Screen 15
30 INFO Display Main Screen 15
31 SET functions 15
32 Tilt/Eject Screen 16
33 CD/DVD Drawer 16
34 Map DVD Drawer 16
35 Showing Sensitivity if Obstructed to close 16
36 Audio OFF Screen 17
37 Process of Activating Diagnostic Mode 17
38 Dealer Diag Menu Screen 17
39 Vehicle Signal Info. Screen 18
40 Connection Info. Screen 18
41 Navi/Audio System 18
79
August 2007
Slide Sequence
Slide No. Description Page No.
42 Navi/Audio Top 18
43 Back of Navi/Audio System 19
44 Navi/ Audio Fan 19
45 Removing Navi/Audio System 19
46 Satellite Radio Receiver 19
47 Placement of Satellite Receiver 19
48 Antennae Wires Attached to Roof 19
49 Antennae Attached to Roof 20
50 Satellite / Audio Antennae 20
51 Radio Antenna 20
52 Window Assembly Top View 20
53 Window Assembly Bottom View 20
54 Cable Guide 20
55 Window Switch Assembly 21
56 Removing Inner Trim 21
57 Removing Outer Trim 21
58 Door Panel 21
59 Locking and Latch Cables 21
60 Door with Gasket in Place 22
61 Removing Window Bolts 22
62 Bolts, Assist Tabs and Removal 22
63 Lower Window Channel Bolt 22
64 Turbo Model Combination Meter 23
65 Turbo Model Key ON Engine OFF 23
66 Sedan Model (Naturally Aspirated) 24
67 Naturally Aspirated Model Combination Meter 24
68 HVAC Location 25
69 Air Filter 25
70 Steering Support and Dash Assembly 25
71 Title Slide (Electrical) 26
72 Engine Compartment 26
73 F-27 Relay Holder (Line Art) 26
74 Secondary Air Relay Holder (Line Art) 26
75 Inside Main Fuse Box Cover 26
76 Engine Wiring Schematic Showing F-9 27
77 Fuse Box Next to Hood Release 28
78 Relay Block B220 and B225 28
79 Inside Fuse Box Cover 28
80 Relay Block B220 and B225 29
81 B386 Houses the Blower Relay 29
82 Location of B220 29
80
August 2007
Slide Sequence
Slide No. Description Page No.
83 Driver Side Kick Panel 30
84 B220 Relay Circuits 31
85 B386 Blower Motor Relay Wiring Schematic and B386 Relay Circuit 32
86 Title Slide (Body Integrated Unit (BIU) 33
87 BIU Location 33
88 Title Slide (Multi Joint Connector) 35
89 Location of Multi Joint Connector 35
90 Releasing Multi Joint Connector 35
91 Connector Side of Multi Joint Connector 35
92 Front View-Multi Joint Connector 36
93 Back Side Cover Removed-Multi Joint Connector 36
94 Multi Joint Connector 37
95 Multi Joint Connector (Line Art) 37
96 Connector Colors 37
97 Wiper Deicer Wiring Schematic 38
98 Navigation Unit Wiring Schematic 39
99 Security System Wiring Schematic 40
100 Title Slide (Supplemental Restraint System (SRS) 41
101 Satellite Safing Sensor Schematic 41
102 Satellite Safing Sensor Location 41
103 2008 Airbag Trouble Codes 42
104 Airbag Wiring Schematic 43
105 Connector Lock Release Tab 43
106 White Locking Plate 43
107 Title Slide (Evaporative System) 44
108 Carpet Location Tabs 44
109 Sliding Lock Tabs 44
110 WRX Rear of Vehicle with Carpet Removed 44
111 Sedan Trunk 44
112 Sedan Covers Over Evaporative Canister and Evaporative Hoses 44
113 Drain Valve 45
114 Quick Connectors 45
115 Evaporative System Hose Connection 45
116 Hose Connections 46
117 Hose A and B 47
118 Hose B 47
119 Hose B 47
120 Hose C and D 48
121 Hose C 48
122 Hose D 48
123 Hose E and F 49
81
August 2007
Slide Sequence
Slide No. Description Page No.
124 Hose E 49
125 Hose F 49
126 Hose G and H 50
127 Hose G 50
128 Hose H 50
129 Hose I 51
130 Pressure Sensor 51
131 Title Slide (Fuel Tank) 52
132 Main Fuel Pump 52
133 WRX Fuel Pump Control Unit 52
134 Fuel Tank 52
135 Title Slide (Automatic Transmission) 53
136 Differential Gear Ration Chart 53
137 Gear Ration Chart 53
138 Title Slide ( Manual Transmission Changes/Enhancements) 57
139 Manual Transmission Chart 57
140 Difference of Detent Balls and Key Springs 58
141 Detent Ball in Place 58
142 Detent Ball Front / Rear View 58
143 1st and 2nd Slider 58
144 1st and 2nd Hub 58
145 Title Slide (6 Speed Manual Transmission (2008) 59
146 Construction 59
147 Oil Sump 59
148 Front Oil Guides 60
149 Previous Oil Pump 60
150 Main Case Oil Guides 60
151 Main Case Oil Guides Close Up 60
152 Extension Housing Oil Guides 60
153 Friction Tab 61
154 Clip 61
155 Bolts 61
156 Main Case Oil Guides Bench Shot 61
157 Clip 61
158 End Plate 62
159 Previous Oil Pump Location 62
160 Title Slide (5AT Major Modification Points) 63
161 5 Speed Automatic Transmission 63
162 Artwork 64
163 Application Chart 65
164 Artwork (showing differences in what is deleted) 65
82
August 2007
Slide Sequence
Slide No. Description Page No.
165 Hydraulic Control Valve 66
166 Mounting Bolts 66
167 Transmission Harness 67
168 Torque Converter 67
169 Differential Case Cut View 68
170 Drive Plate 68
171 Drive Pinion 69
172 ATF Level Gauge 69
173 Title Slide (2.5 Liter Air Conditioning Belt) 70
174 Air Conditioning Compressor Belt Front View 70
175 Air Conditioning Compressor Belt from Under Car 70
176 WRX Engine 70
177 Sedan Engine 70
178 Cutting Off Air Conditioning Compressor Belt 71
179 Upper Belt Guide In Position 71
180 Lower Belt Guide In Place With Retaining Clip 71
181 22mm Socket and Ratchet In Place 71
182 Belt Fully Engaged On Crankshaft Pulley 72
183 Air Conditioning Compressor Belt Kit 72
184 Title Slide (Chassis) 73
185 G Sensor 73
186 Brake Pedal Off and Brakes Releasing 73
187 Engine Under Cover 74
188 Under Cover OFF 74
189 Front Suspension 74
190 Rear Suspension 74
191 Muffler 75
192 Transverse Mounted Muffler 75
193 Wheel With TPMS 75
194 Close Up Of TPMS 75
195 TPMS Under Canister 75
196 TPMS Data 76
197 Front Tow Hook 76
198 Rear Tow Hook 77
199 Front View of the 5 Door Brake Light 77
200 Back View 5 Door Brake Light 77
201 Copyright
200. The End
83
August 2007
NOTES:

PDF Document reader online

This website is focused on providing document in readable format, online without need to install any type of software on your computer. If you are using thin client, or are not allowed to install document reader of particular type, this application may come in hand for you. Simply upload your document, and Docureader.top will transform it into readable format in a few seconds. Why choose Docureader.top?

  1. Unlimited sharing - you can upload document of any size. If we are able to convert it into readable format, you have it here - saved for later or immediate reading
  2. Cross-platform - no compromised when reading your document. We support most of modern browers without the need of installing any of external plugins. If your device can oper a browser - then you can read any document on it
  3. Simple uploading - no need to register. Just enter your email, title of document and select the file, we do the rest. Once the document is ready for you, you will receive automatic email from us.

Previous 10

Next 10