Page 112 of 2870

AB-12
AIRBAG SYSTEM
Inspection Locations After a Collision
3. Inspection Locations After a
Collision
A: REPLACEMENT
When airbag system is deployed, replace the fol-
lowing parts.
1. FRONT COLLISION
1) Driver’s airbag module
2) Passenger’s airbag module
3) Driver’s seat belt (pretensioner, lap seat belt pre-
tensioner)
4) Passenger’s seat belt (pretensioner)
5) Airbag control module
6) Front sub-sensor
7) Roll connector
2. SIDE COLLISION
1) Airbag control module
2) Side airbag module (operating side seat bag)
3) Side airbag sensor (operating side)
3. INSPECTION OF OTHER PARTS
Check for the following parts, replace the damaged
parts with new ones.
1) Steering wheel and steering shaft
Check the steering wheel and steering shaft for
mounting condition and deflection of axial and radi-
al direction. Check the steering shaft for deflection
of axial direction with tilt lever released. (After a col-
lision, absorbing part of steering shaft may inflate.)
2) Check the direct type connector of driver’s air-
bag module, pretensioner, etc. for damage, and
also check each harness for pinch and connector
damage. If damage is found, replace the harness
as a unit.
B: INSPECTION
If the vehicle is involved in a collision on any side,
even if it is a slight collision, be sure to check the
following system parts.
1. DRIVER’S AIRBAG MODULE
1) Check for the following, and replace damaged
parts with new ones.
Airbag module is cracked or deformed.
Harness and/or connector is cracked, deformed
or open. Lead wire is exposed.
The module surface is fouled with grease, oil,
water or cleaning solvent.
2) When installing a new driver’s airbag module,
check the following. If necessary, install a new air-
bag module and steering wheel.
The steering wheel is in the way, making it diffi-
cult to install the airbag module. The clearance between the driver’s airbag mod-
ule and steering wheel is not constant.
The steering wheel deformation in axial and radi-
al directions exceed limits.
Specifications:
Height deflection A
Less than 6 mm (0.24 in)
O.D. deflection L
Less than 17 mm (0.67 in)
2. PASSENGER’S AIRBAG MODULE
Check for the following, and replace damaged
parts with new ones.
Airbag module is cracked or deformed.
Harness and/or connector is cracked, deformed
or open. Lead wire is exposed.
Mounting bracket is cracked or deformed.
3. SIDE AIRBAG MODULE
Check for the following, and replace damaged
parts with new ones.
Front seat is damaged or deformed.
Harness and/or connector is cracked, deformed
or open.
Lead wire is exposed.
4. AIRBAG CONTROL MODULE
Check for the following, and replace damaged
parts with new ones.
Control module is cracked or deformed.
Mounting bracket is cracked or deformed.
Connector is scratched or deformed.
Airbag is deployed.
Side airbag is deployed.
AB-00028
L
A
Page 131 of 2870

FUJI HEAVY INDUSTRIES LTD. G8080GE7
2004 FORESTER SERVICE MANUAL QUICK REFERENCE INDEX
BODY 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, reas-
sembling, inspection and adjustment of
components and diagnostics for guid-
ance 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 specifi-
cations contained in this manual are
based on the latest product information
available at the time of publication
approval.HVAC SYSTEM
(HEATER, VENTILATOR AND A/C)AC
HVAC SYSTEM (AUTO A/C)
(DIAGNOSTIC)AC
AIRBAG SYSTEM AB
AIRBAG SYSTEM (DIAGNOSTIC) AB
SEAT BELT SYSTEM SB
LIGHTING SYSTEM LI
WIPER AND WASHER SYSTEM WW
ENTERTAINMENT ET
COMMUNICATION SYSTEM COM
GLASS/WINDOW/MIRROR GW
BODY STRUCTURE BS
INSTRUMENTATION/DRIVER INFO IDI
SEAT SE
SECURITY AND LOCK SL
SUNROOF/T-TOP/CONVERTIBLE TOP
(SUNROOF)SR
EXTERIOR/INTERIOR TRIM EI
EXTERIOR BODY PANEL EB
Page 133 of 2870

AIRBAG SYSTEM (DIAGNOSTIC)
AB
Page
1. Basic Diagnostic Procedure ........................................................................2
2. Check List for Interview ...............................................................................3
3. General Description ....................................................................................4
4. Electrical Components Location................................................................19
5. Airbag Control Module I/O Signal..............................................................21
6. Airbag Connector ......................................................................................27
7. Airbag Warning Light Illumination Pattern .................................................30
8. Read Diagnostic Trouble Code (DTC) ......................................................31
9. Inspection Mode ........................................................................................32
10. Clear Memory Mode..................................................................................33
11. Airbag Warning Light Failure.....................................................................34
12. List of Diagnostic Trouble Code (DTC) .....................................................43
13. Diagnostic Procedure with Diagnostic Trouble Code (DTC) .....................46
Page 134 of 2870
AB-2
AIRBAG SYSTEM (DIAGNOSTIC)
Basic Diagnostic Procedure
1. Basic Diagnostic Procedure
A: PROCEDURE
Step Check Yes No
1 READ DTC.
(DTC).>Is the normal code detected? Finish the diagno-
sis.Go to step 2.
2 READ DTC.
(DTC).>Is DTC displayed? Go to step 3.Replace the airbag
warning light.
Airbag Warning
Light Failure.>
3 PERFORM THE DIAGNOSIS.
1) Judge the possible cause from “List of
Diagnostic Trouble Code (DCT)”
43, List of Diagnostic Trouble Code (DTC).>
2) Inspect using “Diagnostic Procedure with
Diagnostic Trouble Code (DTC)”.
3) Repair the cause of the trouble.
4) Perform the clear memory mode.
AB-33, Clear Memory Mode.>
5) Perform the inspection mode.
32, Inspection Mode.>
6) Read any DTC again.Is DTC displayed? Perform the proce-
dure 1) to 5) in
step 3.Finish the diagno-
sis.
Page 135 of 2870
AB-3
AIRBAG SYSTEM (DIAGNOSTIC)
Check List for Interview
2. Check List for Interview
A: CHECK
Customer’s Name Inspector’s Name
Date Vehicle Brought In / / Registration No.
Odometer Readingkm
milesVIN
Date Problem Occurred / / Registration Year / /
Weather❏ Fine ❏ Cloudy ❏ Rainy ❏ Snowy ❏ Other:
Temperature°C (°F)
Road Condition❏ Level road❏ Uphill ❏ Downhill❏ Rough road ❏ Others:
Vehicle Operation❏ Starting❏ Idling
❏ Driving (❏ Constant speed❏ Acceleration❏ Deceleration
❏ Steering wheel turn❏ Others: )
Details of Problem
Check Airbag Warning Light❏ Normal (After turning the ignition switch to ON, lit for 7 seconds and goes off.)
❏ Remains ON❏ Remains OFF
Check DTC❏ Normal Code❏ DTC: (Code: )
Page 137 of 2870
AB-5
AIRBAG SYSTEM (DIAGNOSTIC)
General Description
If any damage, opening, or rust is found on the
airbag system wiring harness, do not attempt to re-
pair using soldering equipment. Be sure to replace
the faulty harness with a new genuine part.
Install the wiring harness securely with the spec-
ified clips to avoid interference or tangled up with
other parts.
Do not allow water or oil to come in contact with
the connector terminals. Do not touch the connec-
tor terminals. Either of the airbag modules for driver, passen-
ger or side, or pretensioner must not be disassem-
bled.
The airbag module cannot be used again once
inflated.
After removal, keep the airbag module with the
pad facing upward on a dry, clean, and flat surface
away from heat and light sources, and moisture
and dust.
Do not check continuity of either of the airbag
modules for driver, passenger or side, or preten-
sioner.
AB-00124
AB-00125
AB-00126
AB-00127
AB-00056
AB-00006
Page 156 of 2870
AB-24
AIRBAG SYSTEM (DIAGNOSTIC)
Airbag Control Module I/O Signal
2. RHD MODEL
A/B(R)-01A/B(R)-01
WI-03206
7
6
2
3
8
GWGY
GY
R
GRGR
RGRL
W
YWLgRBR
10
BB20
65143
6
B
BW
2
2753192
IG
IGNITION RELAY
(IG)FB-36
F/B FUSE No. 14
(IG)FB-20
F/B FUSE No. 11
(IG)FB-21
F/B FUSE No. 6
(IG)
L
GR
GW
W
B
GYGY16GY
GR
B
B9
C8
B10
1
2
L
W
BL
BL
REF. TO GND(R)-04
REF. TO E/G(RNA)-05REF. TO E/G(RTB20)-05REF. TO E/G(RTB25)-05
CHECK
CONNECTOR
DIAGNOSIS
CONNECTOR
DIAGNOSIS
TERMINAL
B31
AB1
(GRAY)
B79
AIRBAG CONTROL MODULE
AB3
B81
B82
B79
B38i3
TO POWER SUPPLY ROUTING
1234567891011121314
GY
(BLACK)B82
B
REF. TO GND(R)-05
B
i3
B31(GREEN) i11 C:
B:
(GREEN)
i10
AIRBAG
CIRCUIT AIRBAG WARNING
LED LIGHT
COMBINATION
METER B: C:
i11i10
12
34561
3456212345678910
123456789101112131415161718192021222324252627282930
(YELLOW)
AB3
1234567891011121314151617
1819202122232425262728
(YELLOW)
219
32
1234
5610 11 12 13 14 15716
23 3019 20
22 26 27 28 29817
24 3118
25
Page 162 of 2870
AB-30
AIRBAG SYSTEM (DIAGNOSTIC)
Airbag Warning Light Illumination Pattern
7. Airbag Warning Light Illumi-
nation Pattern
A: INSPECTION
Keep the ignition switch to ON, and confirm that the
airbag warning light remains off approx. 6 seconds
after being turned on.
(1) Airbag warning light
(2) Approx. 6 seconds
(3) Ignition switch ON
AB-00135
(3)
(1)(2)
ON
OFF