2004 SUBARU FORESTER belt

AB-26
AIRBAG SYSTEM (DIAGNOSTIC)
Airbag Control Module I/O Signal
WI-03208
YG 2YB 1YG 6YB 5W7L10G12B9W12L9G7B10
YG 2YB 1YG 1YB 2W 1L 2G 3B 4W 1L 2G 3B 4
AB7AB8
AB10AB12AB9
YR 2Y1
YR 1Y 2AB19
AB20
AB25
AB12
AB10AB8AB7
AB19
AB11
AB9
AB11
YR 5Y6
YR 1Y 2AB20
AIRBAG CONTROL MODULE
SIDE AIRBAG
SENSOR RH SIDE AIRBAG
SENSOR LH
INFLATOR
(SIDE LH)INFLATOR
(SIDE RH)
1234
21
123456
78910111210 11 12
123456
789
PRETENSIONER
LHPRETENSIONER
RH
YR 3Y4
YR 1Y 2AB25
LAP
SEAT BELT
PRETENSIONER
A/B(R)-03A/B(R)-03
(YELLOW) (YELLOW)
(YELLOW)(YELLOW)
(YELLOW)
(YELLOW)(YELLOW)
21(YELLOW)
(YELLOW)

AB-34
AIRBAG SYSTEM (DIAGNOSTIC)
Airbag Warning Light Failure
11.Airbag Warning Light Failure
A: AIRBAG WARNING LIGHT REMAINS ON.
DIAGNOSIS:
 Airbag warning light unit is faulty.
 Airbag control module to airbag warning light circuit is shorted or open.
 Grounding circuit is faulty.
 Airbag control module is faulty.
 (AB1) and (B31) are not connected properly.
 (AB3) is not connected properly to the airbag control module.
CAUTION:
 Before diagnosing the airbag system, be sure to turn the ignition switch to OFF, disconnect the
ground cable from battery, and wait more than 20 seconds before starting to work.
 After replacing the airbag module, seat belt pretensioner, roll connector, control module or sensor,
reconnect each part and confirm that the airbag warning light operates properly.
 When inspecting the airbag main harness, disconnect the airbag module connector of the driver
and passenger seats for safety reasons.

AB-39
AIRBAG SYSTEM (DIAGNOSTIC)
Airbag Warning Light Failure
B: AIRBAG WARNING LIGHT REMAINS OFF.
DIAGNOSIS:
 Fuse No. 14 (in fuse box) is blown.
 Body harness circuit is open.
 Airbag warning light is faulty.
 Airbag main harness is faulty.
 Airbag control module is faulty.
CAUTION:
 Before diagnosing the airbag system, be sure to turn the ignition switch to OFF, disconnect the
ground cable from battery, and wait more than 20 seconds before starting to work.
 After replacing the airbag module, seat belt pretensioner, roll connector, control module or sensor,
reconnect each part and confirm that the airbag warning light operates properly.
 When inspecting the airbag main harness, disconnect the airbag module connector of the driver
and passenger seats for safety reasons.
1. LHD MODEL
WIRING DIAGRAM:
AB-00739
12
34561
2345678910123456789101112131415161718192021222324252627282930
B31 i11AB3
i10
B:
C: i10
i11
AIRBAG
WARNING
LIGHTCOMBINATION
METERB9
B8
B10
NO.14
i3B38 28
i2B37 19
5
AIRBAG CONTROL MODULEAB3
B31
AB1
3
3
AIRBAG
CIRCUIT
E
BATTERY
1234567891011121314151617
1819202122232425262728
IGNITION
SWITCH
B: C:

AB-43
AIRBAG SYSTEM (DIAGNOSTIC)
List of Diagnostic Trouble Code (DTC)
12.List of Diagnostic Trouble Code (DTC)
A: LIST
DTCMemory func-
tionContents of diagnosis Index No.
11 Provided. Airbag main harness circuit is open, shorted or
shorted to ground.
 Airbag module harness circuit (driver) is open,
shorted or shorted to ground.
 Roll connector circuit is open, shorted or shorted
to ground.
 Airbag control module is faulty.
 Driver’s airbag module is faulty. Diagnostic Procedure
with Diagnostic Trouble
Code (DTC).>
12 Provided. Airbag main harness circuit is open, shorted or
shorted to ground.
 Airbag module harness circuit (passenger) is
open, shorted or shorted to ground.
 Airbag control module is faulty.
 Passenger’s airbag module is faulty. Diagnostic Procedure
with Diagnostic Trouble
Code (DTC).>
15 Provided. Airbag main harness circuit (driver) is shorted to
power supply.
 Airbag module harness (driver) is shorted to power
supply.
 Roll connector is shorted to power supply.
 Airbag control module is faulty.
 Driver’s airbag module is faulty. Diagnostic Procedure
with Diagnostic Trouble
Code (DTC).>
16 Provided. Airbag main harness circuit (passenger) is shorted
to power supply.
 Airbag module harness (passenger) is shorted to
power supply.
 Airbag control module is faulty.
 Passenger’s airbag module is faulty. Diagnostic Procedure
with Diagnostic Trouble
Code (DTC).>
21 Provided. Airbag control module is faulty. Diagnostic Procedure
with Diagnostic Trouble
Code (DTC).>
22 Provided.Front airbag module and seat belt pretensioner (LH/
RH) are inflated. Diagnostic Procedure
with Diagnostic Trouble
Code (DTC).>
23 Not provided.(AB3), (AB7) and (AB8) are not connected properly
to airbag control module. Diagnostic Procedure
with Diagnostic Trouble
Code (DTC).>
24 Not provided. Airbag control module is faulty.
 Airbag main harness circuit is open.
 Fuse No. 11 (in joint box) is blown.
 Body harness circuit is open. Diagnostic Procedure
with Diagnostic Trouble
Code (DTC).>
25 Provided. Airbag control module is faulty.
 Airbag main harness circuit is open.
 Fuse No. 6 (in joint box) is blown.
 Body harness circuit is open. Diagnostic Procedure
with Diagnostic Trouble
Code (DTC).>
31 Provided. Front sub-sensor harness circuit (RH) is shorted,
opened or shorted to power supply.
 Airbag main harness circuit is shorted, opened or
shorted to power supply.
 Front sub-sensor (RH) is faulty.
 Airbag control module is faulty. Diagnostic Procedure
with Diagnostic Trouble
Code (DTC).>

AB-44
AIRBAG SYSTEM (DIAGNOSTIC)
List of Diagnostic Trouble Code (DTC)
32 Provided. Front sub-sensor harness circuit (LH) is shorted,
opened or shorted to power supply.
 Airbag main harness circuit is shorted, opened or
shorted to power supply.
 Front sub-sensor (LH) is faulty.
 Airbag control module is faulty. Diagnostic Procedure
with Diagnostic Trouble
Code (DTC).>
41 Provided. Side airbag harness (RH) is faulty.
 Side airbag module (RH) is faulty.
 Airbag control module is faulty. Diagnostic Procedure
with Diagnostic Trouble
Code (DTC).>
42 Provided. Side airbag harness (LH) is faulty.
 Side airbag module (LH) is faulty.
 Airbag control module is faulty. Diagnostic Procedure
with Diagnostic Trouble
Code (DTC).>
45 Provided. Side airbag harness (RH) is shorted to power sup-
ply.
 Side airbag module (RH) is faulty.
 Airbag control module is faulty. Diagnostic Procedure
with Diagnostic Trouble
Code (DTC).>
46 Provided. Side airbag harness (LH) is shorted to power sup-
ply.
 Side airbag module (LH) is faulty.
 Airbag control module is faulty. Diagnostic Procedure
with Diagnostic Trouble
Code (DTC).>
51 Provided. Side airbag sensor (RH) is faulty.
 Side airbag harness (RH) is faulty.
 Airbag control module is faulty. Diagnostic Procedure
with Diagnostic Trouble
Code (DTC).>
52 Provided. Side airbag sensor (LH) is faulty.
 Side airbag harness (LH) is faulty.
 Airbag control module is faulty. Diagnostic Procedure
with Diagnostic Trouble
Code (DTC).>
53 Provided. Side airbag sensor (RH) is faulty. Diagnostic Procedure
with Diagnostic Trouble
Code (DTC).>
54 Provided. Side airbag sensor (LH) is faulty. Diagnostic Procedure
with Diagnostic Trouble
Code (DTC).>
55 Provided. Side airbag module is operate. Diagnostic Procedure
with Diagnostic Trouble
Code (DTC).>
61 Provided. Seat belt pretensioner circuit (RH) is open, shorted
or shorted to ground.
 Airbag control module is faulty.
 Pretensioner is faulty.
 Pretensioner harness is faulty. Diagnostic Procedure
with Diagnostic Trouble
Code (DTC).>
62 Provided. Seat belt pretensioner circuit (LH) is open, shorted
or shorted to ground.
 Airbag control module is faulty.
 Pretensioner is faulty.
 Pretensioner harness is faulty. Diagnostic Procedure
with Diagnostic Trouble
Code (DTC).>
65 Provided. Seat belt pretensioner circuit (RH) is shorted to
power supply.
 Pretensioner is faulty.
 Pretensioner harness is faulty.
 Airbag control module is faulty. Diagnostic Procedure
with Diagnostic Trouble
Code (DTC).> DTCMemory func-
tionContents of diagnosis Index No.

AB-45
AIRBAG SYSTEM (DIAGNOSTIC)
List of Diagnostic Trouble Code (DTC)
66 Provided. Seat belt pretensioner circuit (LH) is shorted to
power supply.
 Pretensioner is faulty.
 Pretensioner harness is faulty.
 Airbag control module is faulty. Diagnostic Procedure
with Diagnostic Trouble
Code (DTC).>
72 Provided. Airbag main harness circuit is open, shorted or
shorted to ground.
 Airbag module harness circuit (passenger) is
open, shorted or shorted to ground.
 Airbag control module is faulty.
 Passenger’s airbag module is faulty. Diagnostic Procedure
with Diagnostic Trouble
Code (DTC).>
76 Provided. Airbag main harness circuit (passenger) is shorted
or shorted to power supply.
 Airbag module harness circuit (passenger) is
shorted to power supply.
 Airbag control module is faulty.
 Passenger’s airbag module is faulty. Diagnostic Procedure
with Diagnostic Trouble
Code (DTC).>
81 Provided. Lap seat belt pretensioner circuit (RH) is open,
shorted or shorted to ground.
 Lap pretensioner is faulty.
 Lap pretensioner harness is faulty.
 Airbag control module is faulty. Diagnostic Procedure
with Diagnostic Trouble
Code (DTC).>
85 Provided. Lap seat belt pretensioner circuit (RH) is shorted to
power supply.
 Lap pretensioner is faulty.
 Lap pretensioner harness is faulty.
 Airbag control module is faulty. Diagnostic Procedure
with Diagnostic Trouble
Code (DTC).> DTCMemory func-
tionContents of diagnosis Index No.

AB-46
AIRBAG SYSTEM (DIAGNOSTIC)
Diagnostic Procedure with Diagnostic Trouble Code (DTC)
13.Diagnostic Procedure with Diagnostic Trouble Code (DTC)
A: DTC 11
DIAGNOSIS:
 Airbag main harness circuit is open, shorted or shorted to ground.
 Airbag module harness circuit (Driver) is open, shorted or shorted to ground.
 Roll connector circuit is open, shorted or shorted to ground.
 Driver’s airbag module is faulty.
 Airbag control module is faulty.
CAUTION:
 Before diagnosing the airbag system, be sure to turn the ignition switch to OFF, disconnect the
ground cable from battery, and wait more than 20 seconds before starting to work.
 When replacing the airbag module, seat belt pretensioner, roll connector, control module and sen-
sor, confirm that airbag warning light is turn normally after reconnect the each parts.
 When inspecting the airbag main harness, disconnect the driver’s airbag module and passenger’s
airbag module connectors for safety reasons.
WIRING DIAGRAM:
AB-00741
AB3
AB21
AB26
AB222
11
14
13
AB21AB3AB2
1212
AIRBAG CONTROL MODULE
STEERING
ROLL CONNECTOR
INFLATOR
(DRIVER SIDE)
1234567891011121314151617
1819202122232425262728

AB-48
AIRBAG SYSTEM (DIAGNOSTIC)
Diagnostic Procedure with Diagnostic Trouble Code (DTC)
B: DTC 12
DIAGNOSIS:
 Airbag main harness circuit is open, shorted or shorted to ground.
 Airbag module harness circuit (Passenger) is open, shorted or shorted to ground.
 Passenger’s airbag module is faulty.
 Airbag control module is faulty.
CAUTION:
 Before diagnosing the airbag system, be sure to turn the ignition switch to OFF, disconnect the
ground cable from battery, and wait more than 20 seconds before starting to work.
 When replacing the airbag module, seat belt pretensioner, roll connector, control module and sen-
sor, confirm that airbag warning light is turn normally after reconnect the each parts.
 When inspecting the airbag main harness, disconnect the airbag module connector of the driver
and passenger seats for safety reasons.
WIRING DIAGRAM:
AB-00742
AB3 INFLATOR
(PASSENGER SIDE)
AB4
AB4
AB27
11
10 3
47
8
1
2
AIRBAG CONTROL MODULEAB3
12341234567891011121314151617
1819202122232425262728