2004 SUBARU FORESTER sensor

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-50
AIRBAG SYSTEM (DIAGNOSTIC)
Diagnostic Procedure with Diagnostic Trouble Code (DTC)
C: DTC 15
DIAGNOSIS:
 Airbag main harness circuit (Driver) is shorted to the power supply.
 Airbag module harness (Driver) is shorted to the power supply.
 Roll connector is shorted to the power supply.
 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.
 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 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-52
AIRBAG SYSTEM (DIAGNOSTIC)
Diagnostic Procedure with Diagnostic Trouble Code (DTC)
D: DTC 16
DIAGNOSIS:
 Airbag main harness circuit (Passenger) is shorted to the power supply.
 Airbag module harness (Passenger) is shorted to the power supply.
 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.
 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.
WIRING DIAGRAM:
AB-00742
AB3 INFLATOR
(PASSENGER SIDE)
AB4
AB4
AB27
11
10 3
47
8
1
2
AIRBAG CONTROL MODULEAB3
12341234567891011121314151617
1819202122232425262728

AB-54
AIRBAG SYSTEM (DIAGNOSTIC)
Diagnostic Procedure with Diagnostic Trouble Code (DTC)
E: DTC 21
DIAGNOSIS:
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.
Step Check Yes No
1 CHECK IF DTC 21 IS INDICATED.
Read the DTC. tic Trouble Code (DTC).>Is the airbag warning light DTC
21 indicated?Replace the airbag
control module.
Airbag Control
Module.>Perform the clear
memory mode.
Clear Memory
Mode.>

AB-55
AIRBAG SYSTEM (DIAGNOSTIC)
Diagnostic Procedure with Diagnostic Trouble Code (DTC)
F: DTC 22
1. LHD MODEL
WIRING DIAGRAM:
This code is indicated when the front airbag and the pretensioner are in operation.
Once this code is indicated, memory is not erasable; therefore replace the following parts.
 Airbag control module.
 Driver’s airbag module.
 Passenger’s airbag module.
 Front sub-sensor of both sides.
 Front seat belt outer with pretensioner of both sides.
AB-00743
AB3AB4
1234
AB3AB8AB7
AB20
6
1
2
52
1
AB4AB193
41
21
2
14
137
811
10
AB21
AB26
AB222
1
1
AB20
AB19
AB21
AB2
12
12
AB7AB8 AIRBAG CONTROL MODULE
STEERING
ROLL
CONNECTOR
PRETENSIONER LHINFLATOR
(DRIVER SIDE)INFLATOR
(PASSENGER SIDE)
PRETENSIONER RH
1234567891011121314151617
1819202122232425262728
123456
789101112
123456
789101112

AB-56
AIRBAG SYSTEM (DIAGNOSTIC)
Diagnostic Procedure with Diagnostic Trouble Code (DTC)
2. RHD MODEL
WIRING DIAGRAM:
This code is indicated when the front airbag, pretensioner and lap pretensioner are in operation.
Once this code is indicated, memory is not erasable; therefore replace the following parts.
 Airbag control module.
 Driver’s airbag module.
 Passenger’s airbag module.
 Front sub-sensor of both sides.
 Front seat belt outer with pretensioner of both sides.
AB-00744
AB3AB4
1234
AB3AB8AB7
AB20
6
1
2
52
1
AB4AB193
41
21
2
14
137
811
10
AB21
AB26
AB222
1
1
AB20
AB19
AB21
AB2
12
12
AB7AB8 AIRBAG CONTROL MODULE
STEERING
ROLL
CONNECTOR
PRETENSIONER LHINFLATOR
(DRIVER SIDE)INFLATOR
(PASSENGER SIDE)
PRETENSIONER RH
AB25
12
AB251
2
LAP SEAT BELT
PRETENSIONER
4 3
123456
789101112
123456
789101112
1234567891011121314151617
1819202122232425262728

AB-58
AIRBAG SYSTEM (DIAGNOSTIC)
Diagnostic Procedure with Diagnostic Trouble Code (DTC)
H: DTC 24
DIAGNOSIS:
 Airbag control module is faulty.
 Airbag main harness circuit is open.
 Fuse No. 11 (in fuse and relay box) is blown.
 Body harness circuit is open.
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 driver’s airbag module and passenger’s
airbag module connectors for safety reasons.
1. LHD MODEL
WIRING DIAGRAM:
AB-00623
AB3
AIRBAG CONTROL MODULEAB3
B31
AB1
AB1
1
6
BATTERY
IG SW
NO.11
B31
12
34561
23 45 61234567891011121314151617
1819202122232425262728