2004 SUBARU FORESTER Service Repair Manual

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Page 193 of 2870

SUBARU FORESTER 2004 Service Repair Manual AB-61
AIRBAG SYSTEM (DIAGNOSTIC)
Diagnostic Procedure with Diagnostic Trouble Code (DTC)
Step Check Yes No
1 CHECK AIRBAG CONTROL MODULE.
1) Turn the ignition switch to OFF, disconnect
the battery g

Page 194 of 2870

SUBARU FORESTER 2004 Service Repair Manual AB-62
AIRBAG SYSTEM (DIAGNOSTIC)
Diagnostic Procedure with Diagnostic Trouble Code (DTC)
I: DTC 25
DIAGNOSIS:
Airbag control module is faulty.
Airbag main harness circuit is open.
Fuse No. 6 (in

Page 195 of 2870

SUBARU FORESTER 2004 Service Repair Manual AB-63
AIRBAG SYSTEM (DIAGNOSTIC)
Diagnostic Procedure with Diagnostic Trouble Code (DTC)
Step Check Yes No
1 CHECK AIRBAG CONTROL MODULE.
1) Turn the ignition switch to OFF, disconnect
the battery g

Page 196 of 2870

SUBARU FORESTER 2004 Service Repair Manual AB-64
AIRBAG SYSTEM (DIAGNOSTIC)
Diagnostic Procedure with Diagnostic Trouble Code (DTC)
2. RHD MODEL
WIRING DIAGRAM:
AB-00746
AB3
AIRBAG CONTROL MODULEAB3
B31
AB1
AB1
5
5
BATTERY
NO.6
B31
12
34561
23

Page 197 of 2870

SUBARU FORESTER 2004 Service Repair Manual AB-65
AIRBAG SYSTEM (DIAGNOSTIC)
Diagnostic Procedure with Diagnostic Trouble Code (DTC)
Step Check Yes No
1 CHECK AIRBAG CONTROL MODULE.
1) Turn the ignition switch to OFF, disconnect
the battery g

Page 198 of 2870

SUBARU FORESTER 2004 Service Repair Manual AB-66
AIRBAG SYSTEM (DIAGNOSTIC)
Diagnostic Procedure with Diagnostic Trouble Code (DTC)
J: DTC 31
DIAGNOSIS:
Front sub-sensor harness circuit (RH) is shorted, open or shorted to power supply.
Air

Page 199 of 2870

SUBARU FORESTER 2004 Service Repair Manual AB-67
AIRBAG SYSTEM (DIAGNOSTIC)
Diagnostic Procedure with Diagnostic Trouble Code (DTC)
Step Check Yes No
1 CHECK FRONT SUB-SENSOR (RH) AND
AIRBAG HARNESS.
1) Turn the ignition switch to OFF, disco

AB-67
AIRBAG SYSTEM (DIAGNOSTIC)
Diagnostic Procedure with Diagnostic Trouble Code (DTC)
Step Check Yes No
1 CHECK FRONT SUB-SENSOR (RH) AND
AIRBAG HARNESS.
1) Turn the ignition switch to OFF, disconnect
the battery ground cable, and wait more than
20 seconds.
2) Disconnect the connector (AB3) from the
airbag control module, and connect the con-
nector (1R) in test harness R. Airbag Control Module.>
3) Measure the resistance of the connector
(3R) in test harness R.
Connector & terminal
(3R) No. 7 — (3R) No. 9: Is the resistance 750 Ω and 1
KΩ? Replace the airbag
control module.
Airbag Control
Module.>Go to step 2.
2 CHECK AIRBAG MAIN HARNESS AND
FRONT SUB-SENSOR HARNESS (RH).
1) Disconnect the connector (AB15) from the
front sub-sensor. Sensor.>
2) Connect the connector (IH) in test harness
H to connector (AB15).
3) Measure the resistance between connector
(3R) in test harness R and connector (3H) in
test harness H.
Connector & terminal
(3R) No. 7 — (3H) No. 5:
(3R) No. 9 — (3H) No. 6: Is the resistance less than 10
Ω?Go to step 3.LHD model:
Replace the airbag
main harness and
front sub-sensor
harness with body
harness.
RHD model:
Go to step 4.
3 CHECK AIRBAG MAIN HARNESS AND
FRONT SUB-SENSOR HARNESS (RH).
Measure the resistance between connector
(3R) in test harness R and the chassis ground.
Connector & terminal
(3R) No. 7 — Chassis ground:
(3R) No. 9 — Chassis ground: Is the resistance more than 1
MΩ?Go to step 8.LHD model:
Replace the airbag
main harness and
front sub-sensor
harness with body
harness.
RHD model:
Go to step 4.
4 CHECK AIRBAG MAIN HARNESS
1) Disconnect the connector (AB13) from
(AB14), and connect the connector (1L) in test
harness L to connector (AB13).
2) Measure the resistance between connector
(3R) in test harness R and connector (3L) in
test harness L.
Connector & terminal
(3R) No. 7 — (3L) No. 4:
(3R) No. 9 — (3L) No. 3: Is the resistance less than 10
Ω?Go to step 5.Replace the airbag
main harness with
body harness.
5 CHECK AIRBAG MAIN HARNESS
Measure the resistance between connector
(3R) in test harness R and the chassis ground.
Connector & terminal
(3R) No. 7 — Chassis ground:
(3R) No. 9 — Chassis ground:Is the resistance more than 1
MΩ?Go to step 6.Replace the airbag
main harness with
body harness.
6 CHECK FRONT SUB-SENSOR HARNESS
(RH).
1) Connect the connector (2L) in test harness
F to the connector (AB14).
2) Measure the resistance between connector
(3H) in test harness H and connector (3L) in
the test harness L.
Connector & terminal
(3L) No. 5 — (3H) No. 5:
(3L) No. 6 — (3H) No. 6: Is the resistance less than 10
Ω?Go to step 7.Replace the front
sub-sensor har-
ness (RH) with
body harness.

Page 200 of 2870

SUBARU FORESTER 2004 Service Repair Manual AB-68
AIRBAG SYSTEM (DIAGNOSTIC)
Diagnostic Procedure with Diagnostic Trouble Code (DTC)
7 CHECK FRONT SUB-SENSOR HARNESS
(RH).
Measure the resistance between connector
(3L) in test harness L and t

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