warning SUBARU FORESTER 2004 Service Workshop Manual
[x] Cancel search | Manufacturer: SUBARU, Model Year: 2004, Model line: FORESTER, Model: SUBARU FORESTER 2004Pages: 2870, PDF Size: 38.67 MB
Page 225 of 2870
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
Page 226 of 2870
AB-94
AIRBAG SYSTEM (DIAGNOSTIC)
Diagnostic Procedure with Diagnostic Trouble Code (DTC)
Step Check Yes No
1 CHECK PASSENGERS AIRBAG MODULE.
1) Turn the ignition switch OFF, disconnect the
battery ground cable, and wait more than 20
seconds.
2) Remove the glove box.
3) Disconnect the connector passenger’s air-
bag module from (AB4).
4) Connect the connector (1P) in test harness
K to connector (AB4).
5) Connect two airbag resistors to connectors
(2P) and (3P) in test harness P.
6) Connect the battery ground cable and turn
the ignition switch ON.Is the airbag warning light
turned on normally?Replace the pas-
senger’s airbag
module.
ger’s Airbag Mod-
ule.>Go to step 2.
2 CHECK AIRBAG MAIN HARNESS.
1) Turn the ignition switch OFF, disconnect the
battery ground cable, and wait more than 20
seconds.
2) Disconnect two airbag resistors from the
connectors (2P) and (3P) in test harness P.
3) Remove the lower cover and disconnect the
connector (AB21) from (AB26).
4) Disconnect the connector (AB3) from the
air bag control module, and connect the con-
nector (1R) in test harness R.
5) Measure the resistance between connector
(2R) in test harness R and the connector (2P)
in test harness P.
Connector & terminal
(2R) No. 9 — (3P) No. 3:
(2R) No. 13 — (3P) No. 4: Is the resistance less than 10
Ω?Go to step 3.Replace the airbag
main harness
together with body
harness as a unit.
3 CHECK AIRBAG MAIN HARNESS.
Measure the resistance of the connector (2R)
in test harness R.
Connector & terminal
(2R) No. 9 — No. 13:
(2R) No. 9 — Chassis ground:
(2R) No. 13 — Chassis ground:Is the resistance more than 1
MΩ?Replace the airbag
control module.
Module.>Replace the airbag
main harness
together with body
harness as a unit.
Page 227 of 2870
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
Page 228 of 2870
AB-96
AIRBAG SYSTEM (DIAGNOSTIC)
Diagnostic Procedure with Diagnostic Trouble Code (DTC)
Step Check Yes No
1 CHECK PASSENGERS AIRBAG MODULE.
1) Turn the ignition switch OFF, disconnect the
battery ground cable, and wait more than 20
seconds.
2) Remove the glove box.
3) Disconnect the connector (AB4) from pas-
senger’s airbag module.
4) Connect the connector (1P) in test harness
D to connector (AB4).
5) Connect two airbag resistors to connectors
(2P) and (3P) in test harness P.
6) Connect the battery ground cable and turn
the ignition switch ON. Is the airbag warning light
turned on normally?Replace the pas-
senger’s airbag
module.
ger’s Airbag Mod-
ule.>Go to step 2.
2 CHECK AIRBAG MAIN HARNESS.
1) Turn the ignition switch OFF, disconnect the
battery ground cable, and wait more than 20
seconds.
2) Disconnect two airbag resistors from the
connectors (2P) and (3P) in test harness P.
3) Remove the lower cover and disconnect the
connector (AB21) from (AB26).
4) Disconnect the connector (AB3) from the
airbag control module, and connect the con-
nector (1R) in test harness R.
5) Measure the voltage between connector
(2R) in test harness R and the chassis ground.
Connector & terminal
(2R) No. 9 (+) — Chassis ground (
−):
(2R) No. 13 (+) — Chassis ground (
−): Is the voltage less than 1 V? Replace the airbag
control module.
Module.>Replace the airbag
main harness
together with body
harness as a unit.
Page 229 of 2870
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
Page 230 of 2870
AB-98
AIRBAG SYSTEM (DIAGNOSTIC)
Diagnostic Procedure with Diagnostic Trouble Code (DTC)
Step Check Yes No
1 CHECK LAP SEAT BELT PRETENSIONER.
1) Turn the ignition switch to OFF, disconnect
the battery ground cable, and wait more than
20 seconds.
2) Disconnect the connector (AB25) from the
lap seat belt pretensioner (RH).
3) Connect the connector (1Q) in test harness
Q to (AB25).
4) Connect the airbag resistor to connector
(2Q) in test harness Q.
5) Connect the battery ground cable, and turn
the ignition switch to ON.Is the airbag warning light
turned on normally?Replace the lap
seat belt preten-
sioner (RH).
OUTER SEAT
BELT WITH LAP
SEAT BELT PRE-
TENSIONER,
REMOVAL, Front
Seat Belt.>Go to step 2.
2 CHECK SIDE AIRBAG HARNESS (RH).
1) Turn the ignition switch to OFF, disconnect
the battery ground cable, and wait more than
20 seconds.
2) Disconnect the airbag resistor from the test
harness.
3) Disconnect the connector (AB11) from side
airbag module (RH).
4) Disconnect the connectors (AB20) from
seat belt pretensioner.
5) Disconnect the connector (AB8) from air-
bag control module.
6) Connect the connector (1R) in test harness
R to the connector (AB8).
7) Measure the resistance between connector
(3R) in test harness R and connector (2Q) in
test harness Q.
Connector & terminal
(3R) No. 2 — (2Q) No. 2:
(3R) No. 4 — (2Q) No. 1: Is the resistance less than 10
Ω?Go to step 3.Replace the side
airbag harness
with body harness.
3 CHECK SIDE AIRBAG HARNESS.
Measure the resistance between the connector
(3R) in test harness R and the chassis ground.
Connector & terminal
(3R) No. 2 — (3R) No. 4:
(3R) No. 2 — Chassis ground:
(3R) No. 4 — Chassis ground: Is the resistance more than 1
MΩ?Replace the airbag
control module.
Module.>Replace the side
airbag harness
with body harness.
Page 231 of 2870
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
Page 232 of 2870
AB-100
AIRBAG SYSTEM (DIAGNOSTIC)
Diagnostic Procedure with Diagnostic Trouble Code (DTC)
Step Check Yes No
1 CHECK LAP SEAT BELT PRETENSIONER.
1) Turn the ignition switch to OFF, disconnect
the battery ground cable, and wait more than
20 seconds.
2) Disconnect the connector (AB25) from the
lap seat belt pretensioner (RH).
3) Connect the connector (1Q) in test harness
Q to (AB25).
4) Connect the airbag resistor to the connec-
tor (2Q) in test harness Q.
5) Connect the battery ground cable and turn
the ignition switch to ON.Is the airbag warning light
turned on normally?Replace the lap
seat belt preten-
sioner (RH).
OUTER SEAT
BELT WITH LAP
SEAT BELT PRE-
TENSIONER,
REMOVAL, Front
Seat Belt.>Go to step 2.
2 CHECK SIDE AIRBAG HARNESS (RH).
1) Turn the ignition switch to OFF, disconnect
the battery ground cable, and wait more than
20 seconds.
2) Disconnect the airbag resistor from the test
harness.
3) Disconnect the connector (AB11) from side
airbag module (RH).
4) Disconnect the connector (AB20) from seat
belt pretensioner.
5) Disconnect the connectors (AB7) and
(AB8) from the airbag control module.
6) Connect the connector (1R) in test harness
R to the connector (AB7).
7) Connect the battery ground cable and turn
the ignition switch to ON.
8) Measure the voltage between connector
(3R) in test harness R and the chassis ground.
Connector & terminal
(3R) No. 2 (+) — Chassis ground (
−):
(3R) No. 4 (+) — Chassis ground (
−): Is the voltage less than 1 V? Replace the airbag
control module.
Module.>Replace the side
airbag harness
with body harness.
Page 235 of 2870
SEAT BELT SYSTEM
SB
Page
1. General Description ....................................................................................2
2. Inspection Locations After a Collision .........................................................6
3. Seat Belt Warning System ..........................................................................7
4. Front Seat Belt ..........................................................................................10
5. Rear Seat Belt ...........................................................................................12
6. Disposal of Pretensioner ...........................................................................14
Page 241 of 2870
SB-7
SEAT BELT SYSTEM
Seat Belt Warning System
3. Seat Belt Warning System
A: WIRING DIAGRAM
B: INSPECTION
TROUBLE SYMPTOM:
Seat belt warning light does not come on or go off.
Buzzer does not beep.
Step Check Yes No
1 CHECK HARNESS BETWEEN SEAT BELT
TIMER MODULE AND CHASSIS GROUND.
1) Turn the ignition switch to OFF.
2) Disconnect the connector from seat belt
timer module.
3) Measure the resistance between seat belt
timer module harness connector and chassis
ground.
Connector & terminal
(B44) No. 3 — Chassis ground:Is the resistance less than 1
Ω?Go to step 2.Repair the open
circuit of harness
between seat belt
timer module and
chassis ground.
2 CHECK POWER SUPPLY OF SEAT BELT
TIMER MODULE.
1) Turn the ignition switch to ON.
2) Measure the voltage between seat belt
timer module connector and chassis ground.
Connector & terminal
(B44) No. 9 (+) — Chassis ground (–):Is the voltage more than 10 V? Go to step 3.Repair the open
harness, short cir-
cuit and poor con-
tact of connector
between seat belt
timer module and
battery.
3 CHECK HARNESS AND SEAT BELT
SWITCH.
1) Turn the ignition switch to OFF.
2) Disconnect the connector from seat belt
timer module.
3) Hold the tang plate disconnected from seat
belt buckle.
4) Measure the resistance between seat belt
timer module harness connector and chassis
ground.
Connector & terminal
(B44) No. 6 — Chassis ground:Is the resistance less than 1
Ω?Go to step 4.Repair the short
circuit of harness
between seat belt
timer module con-
nector and chassis
ground.
4 CHECK SEAT BELT SWITCH AND HAR-
NESS.
1) Turn the ignition switch to OFF.
2) Insert the tang plate into seat belt buckle.
3) Measure the resistance between seat belt
timer module connector and chassis ground.
Connector & terminal
(B44) No. 6 — Chassis ground:Is the resistance more than 1
MΩ?Go to step 7.Go to step 5.
5 CHECK HARNESS BETWEEN SEAT BELT
TIMER MODULE AND SEAT BELT SWITCH.
Measure the resistance of harness between
seat belt timer module connector and seat belt
switch.
Connector & terminal
(B44) No. 6 — (R8) No. 2:Is the resistance less than 1
Ω?Go to step 6.Repair the open
circuit of harness
and poor contact
of connector
between seat belt
timer module con-
nector and seat
belt switch.