sensor SUBARU FORESTER 2004 Service Manual PDF

AB-83
AIRBAG SYSTEM (DIAGNOSTIC)
Diagnostic Procedure with Diagnostic Trouble Code (DTC)
Step Check Yes No
1 CHECK SIDE AIRBAG (LH) HARNESS.
1) Turn the ignition switch to OFF, disconnect
the battery ground cable, and wait more than
20 seconds.
2) Disconnect the connector (AB19) from the
seat belt pretensioner (LH). Front Seat Belt.>
3) Disconnect the connector (AB9) from side
airbag module (LH).
4) Disconnect the connector (AB7) from the
airbag control module. Control Module.>
5) Connect the connector (1R) in test harness
R to connector (AB7).
6) Disconnect the connector (AB10) from the
side airbag sensor (LH), and connect the con-
nector (1G) in test harness G to connector
(AB10).
7) Measure the resistance between connector
(4R) in test harness R and connector (3G) in
test harness G.
Connector & terminal
(4R) No. 4 — (3G) No. 2:
(4R) No. 3 — (3G) No. 4:
(4R) No. 2 — (3G) No. 1:
(4R) No. 1 — (3G) No. 5:Is the resistance less than 10
Ω?Go to step 2.Replace the side
airbag harness
with body harness.
2 CHECK SIDE AIRBAG (LH) HARNESS.
Measure the resistance between connector
(4R) in test harness R and the chassis ground.
Connector & terminal
(4R) No. 4 — Chassis ground:
(4R) No. 3 — Chassis ground:
(4R) No. 2 — Chassis ground:
(4R) No. 1 — Chassis ground:Is the resistance more than 1
MΩ?Replace the side
airbag sensor
(LH). 19, Side Airbag
Sensor.> When
sensor replace-
ment is not OK,
replace the airbag
control module.
Airbag Control
Module.>Replace the side
airbag harness
with body harness.

AB-84
AIRBAG SYSTEM (DIAGNOSTIC)
Diagnostic Procedure with Diagnostic Trouble Code (DTC)
R: DTC 53
DIAGNOSIS:
 Side airbag sensor (RH) is faulty.
When Code 53 is displayed, the circuit within the side airbag sensor (RH) is faulty. Replace the side airbag
sensor (RH).

S: DTC 54
DIAGNOSIS:
 Side airbag sensor (LH) is faulty.
When Code 53 is displayed, the circuit within the side airbag sensor (LH) is faulty. Replace the side airbag
sensor (LH).

T: DTC 55
This code is displayed when the side airbag is operate.
When this code is displayed, the memory cannot be erased. Replace the following parts.
 Airbag control module.
 Front seat with side airbag module. (Operating side)
 Side airbag sensor. (Operating side)

AB-85
AIRBAG SYSTEM (DIAGNOSTIC)
Diagnostic Procedure with Diagnostic Trouble Code (DTC)
U: DTC 61
DIAGNOSIS:
 Seat belt pretensioner circuit (RH) is open, shorted or shorted to ground.
 Airbag control module is faulty.
 Pretensioner is faulty.
 Pretensioner harness 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 side airbag harness, disconnect the side airbag module connector and seat
belt pretensioner connector for the safety reasons.
WIRING DIAGRAM:
AB-00086
12
AIRBAG CONTROL MODULEAB8
PRETENSIONER RH
AB20
AB20
6 1
25
AB8
123456
789101112

AB-87
AIRBAG SYSTEM (DIAGNOSTIC)
Diagnostic Procedure with Diagnostic Trouble Code (DTC)
V: DTC 62
DIAGNOSIS:
 Seat belt pretensioner circuit (LH) is open, shorted or shorted to ground.
 Airbag control module is faulty.
 Pretensioner is faulty.
 Pretensioner harness 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 side airbag harness, disconnect the side airbag module connector and seat
belt pretensioner connector for the safety reasons.
WIRING DIAGRAM:
AB-00087
12
AIRBAG CONTROL MODULEAB7
PRETENSIONER LH
AB19
AB19
1 1
22
AB7
123456
789101112

AB-89
AIRBAG SYSTEM (DIAGNOSTIC)
Diagnostic Procedure with Diagnostic Trouble Code (DTC)
W: DTC 65
DIAGNOSIS:
 Seat belt pretensioner circuit (RH) is shorted to the power supply.
 Pretensioner is faulty.
 Pretensioner 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 side airbag harness, disconnect the side airbag module connector and seat
belt pretensioner connector for the safety reasons.
WIRING DIAGRAM:
AB-00086
12
AIRBAG CONTROL MODULEAB8
PRETENSIONER RH
AB20
AB20
6 1
25
AB8
123456
789101112

AB-91
AIRBAG SYSTEM (DIAGNOSTIC)
Diagnostic Procedure with Diagnostic Trouble Code (DTC)
X: DTC 66
DIAGNOSIS:
 Seat belt pretensioner circuit (LH) is shorted to the power supply.
 Pretensioner is faulty.
 Pretensioner 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 side airbag harness, disconnect the side airbag module connector and seat
belt pretensioner connector for the safety reasons.
WIRING DIAGRAM:
AB-00087
12
AIRBAG CONTROL MODULEAB7
PRETENSIONER LH
AB19
AB19
1 1
22
AB7
123456
789101112

AB-93
AIRBAG SYSTEM (DIAGNOSTIC)
Diagnostic Procedure with Diagnostic Trouble Code (DTC)
Y: DTC 72
DIAGNOSIS:
 Airbag harness 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 OFF, disconnect the
ground cable from the 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-00621
AB3 INFLATOR
(PASSENGER SIDE)
AB4
AB4
10
11 4
37
8
1
2
AIRBAG CONTROL MODULEAB3
1234567891011121314151617
1819202122232425262728
1234

AB-95
AIRBAG SYSTEM (DIAGNOSTIC)
Diagnostic Procedure with Diagnostic Trouble Code (DTC)
Z: DTC 76
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 OFF, disconnect the
ground cable from the 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-00621
AB3 INFLATOR
(PASSENGER SIDE)
AB4
AB4
10
11 4
37
8
1
2
AIRBAG CONTROL MODULEAB3
1234567891011121314151617
1819202122232425262728
1234

AB-97
AIRBAG SYSTEM (DIAGNOSTIC)
Diagnostic Procedure with Diagnostic Trouble Code (DTC)
AA:DTC 81
DIAGNOSIS:
 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.
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 side airbag harness, disconnect the side airbag module connector and seat
belt pretensioner connector for the safety reasons.
WIRING DIAGRAM:
AB-00749
AB8
AB25
4 1
23
AB8AB25
12
AIRBAG CONTROL MODULE
LAP SEAT BELT PRETENSIONER
FOR AUSTRALIA MODEL
123456
789101112

AB-99
AIRBAG SYSTEM (DIAGNOSTIC)
Diagnostic Procedure with Diagnostic Trouble Code (DTC)
AB:DTC 85
DIAGNOSIS:
 Lap seat belt pretensioner circuit (RH) is shorted to the power supply.
 Lap pretensioner is faulty.
 Lap pretensioner 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 side airbag harness, disconnect the side airbag module connector and seat
belt pretensioner connector for the safety reasons.
WIRING DIAGRAM:
AB-00749
AB8
AB25
4 1
23
AB8AB25
12
AIRBAG CONTROL MODULE
LAP SEAT BELT PRETENSIONER
FOR AUSTRALIA MODEL
123456
789101112