2009 SUBARU TRIBECA fuse box
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AB(diag)-43
Airbag Warning Light Failure
AIRBAG SYSTEM (DIAGNOSTICS)
B: AIRBAG WARNING LIGHT REMAINS OFF
DETECTING CONDITION:
•Fuse No. 5 (in fuse box) is brown out.
•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 terminal from battery, and wait more than 20 seconds before starting to work.
•After replacing the airbag module, seat belt pretensioner, roll connector, control module and sen-
sor, reconnect each part and confirm that the warning light operates properly.
•When inspecting the airbag main harness, disconnect the airbag module connectors and seat belt
pretensioners of the driver’s and passenger’s seats for safety reasons.
WIRING DIAGRAM:
AB-01298
AB6
B31
AB1
No.5
3
B12
A3A4
11
AB6AB1i10
B403i2
i126i127
i10A:i11B:
B403
1
13
123456789
1611101514131217 191823 252420 2221
435689122827141110 133029262524232221201918172116157
1245614131211109873
i11
1245614715 1613121110983
i102
1234567891011121314151617
1819202122232425262728
IGNITIONSWITCH
COMBINATION METER
BATTERY
AIRBAG WARNING LIGHT
AIRBAG CONTROL MODULE
:TERMINAL NO. OPTIONAL ARRANGEMENT AMONG 7, 8 AND 9
:TERMINAL NO. OPTIONAL ARRANGEMENT AMONG 10, 11 AND 12
REVERSECIRCUIT
123456789101112
i126
i127
1256347891011 12
2*
2***
1*
Page 68 of 2453
AB(diag)-44
Airbag Warning Light Failure
AIRBAG SYSTEM (DIAGNOSTICS)
Step Check Yes No
1CHECK COMBINATION METER.
Tu r n t h e i g n i t i o n s w i t c h t o O N , a n d c o n f i r m t h a t
warning light of combination meter is turned
on.
Do warning lights except for
airbag turn on?
Go to step 2.Check the combi-
nation meter.
2CHECK DTC.
Read the DTC.
OPERATION, Subaru Select Monitor.>
Is DTC displayed? Perform the diag-
nosis according to
DTC.
Go to step 3.
3CHECK FUSE NO. 5 (IN MAIN FUSE BOX).
Remove the fuse No. 5 and perform visual
inspection.
Is the fuse No. 5 (in main fuse
box) blown out?
Replace the fuse
No. 5. If the fuse
No. 5 is blown out
again, go to step
4.
Go to step 4.
4CHECK AIRBAG WARNING LIGHT CIRCUIT
(IN COMBINATION METER).
1) Turn the ignition switch to OFF, disconnect
the battery ground cable, and wait more than
20 seconds.
2) Disconnect the connector (AB1) from
(B31).
3) Connect the battery ground terminal and
turn the ignition switch to ON.
Does airbag warning light turn
on?
Go to step 5.Check the combi-
nation meter.
5CHECK AIRBAG MAIN HARNESS.
1) Turn the ignition switch to OFF, disconnect
the battery ground cable, and wait more than
20 seconds.
2) Connect the connector (AB1) to (B31).
3) Disconnect the connector (AB6) from air-
bag control module.
4) Connect the battery ground terminal and
turn the ignition switch to ON.
Does airbag warning light turn
on?
Replace the airbag
control module.
Module.>
Replace the airbag
main harness with
bulkhead harness.
Page 69 of 2453
AB(diag)-45
List of Diagnostic Trouble Code (DTC)
AIRBAG SYSTEM (DIAGNOSTICS)
13.List of Diagnostic Trouble Code (DTC)
A: LIST
DTC Display Content of diagnosis Reference target
11 Driver’s Airbag failure • Airbag main harness circuit is open, shorted
or shorted to ground.
•Airbag module harness (Driver's side) circuit
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.
with Trouble Code.>
12 Passenger's Airbag failure • Airbag main harness circuit is open, shorted
or shorted to ground.
•Airbag module harness (Passenger's side)
circuit is open, shorted or shorted to ground.
•Airbag control module is faulty.
•Passenger's airbag module is faulty.
Chart with Trouble Code.>
15 Driver’s Airbag failure • Airbag main harness circuit (Driver’s side) is
shorted to power supply.
•Airbag module harness circuit (Driver’s side)
is shorted to power supply.
•Roll connector is shorted to power supply.
•Airbag control module is faulty.
•Driver’s airbag module is faulty.
with Trouble Code.>
16 Passenger's Airbag failure • Airbag main harness circuit (Passenger's
side) is shorted to power supply.
•Airbag module harness circuit (Passenger's
side) is shorted to power supply.
•Airbag control module is faulty.
•Passenger's airbag module is faulty.
Chart with Trouble Code.>
21 Airbag ECU failure Airbag control module is faulty.
Tr o u b l e C o d e . >
22 Front Airbag Firing output Front airbag module and seat belt pretensioner
(LH/RH) are inflated.
Chart with Trouble Code.>
23 Connector to Airbag ECU
failure
Connection of (AB6), (AB17) and (AB18) to air-
bag control module is improper.
nostic Chart with Trouble Code.>
24 IG1 open • Airbag control module is faulty.
•Airbag main harness circuit is open.
•Fuse No. 12 (in joint box) is blown.
•Airbag rear harness circuit is open.
Code.>
25 IG2 open • Airbag control module is faulty.
•Airbag main harness circuit is open.
•Fuse No. 25 (in joint box) is blown.
•Airbag rear harness circuit is open.
Code.>
26 Passenger's Airbag indi-
cator failure
•Passenger's airbag indicator is faulty.
•Airbag control module is faulty.
•Airbag main harness circuit is open, shorted
or shorted to ground.
•Body harness circuit is open.
Diagnostic Chart with Trouble Code.>
27 ODS Communication error • Occupant detection control module communi-
cation is faulty.
•Airbag rear harness circuit is open, shorted,
shorted to ground or shorted to power supply.
•Occupant detection harness is faulty.
•Airbag control module is faulty.
•Occupant detection system is faulty.
Chart with Trouble Code.>
Page 70 of 2453
AB(diag)-46
List of Diagnostic Trouble Code (DTC)
AIRBAG SYSTEM (DIAGNOSTICS)
29 ODS failure • Occupant detection sensor is faulty.
•Occupant detection control module is faulty.
•Occupant detection harness is faulty.
•Fuse No. 25 (in joint box) is blown.
Refer to “Occupant Detection System”
for details on DTC 29.
Procedure with Diagnostic Trouble Code
(DTC).>
2A ODS Calibration error System calibration (Rezeroing) of the occupant
detection system was not ended normally.
Refer to “Occupant Detection System”
for details on DTC 2A.
DETECTION CALIBRATION FAILURE,
Diagnostic Procedure with Diagnostic
Tr o u b l e C o d e ( D T C ) . >
2B ODS System Wrong error • Wrong airbag control module was installed.
•Wrong occupant detection system was
installed.
•Occupant detection system is faulty.
Refer to “Occupant Detection System”
for details on DTC 2B.
OUS PARTS, Diagnostic Procedure with
Diagnostic Trouble Code (DTC).>
2C Belt Tension Sensor fail-
ure
•Passenger’s seat belt tension sensor is faulty.
•Occupant detection system is faulty.
•Airbag rear harness circuit is open, shorted,
shorted to ground or shorted to power supply.
•Occupant detection harness is faulty.
Refer to “Occupant Detection System”
for details on DTC 2C.
SENSOR FAILURE, Diagnostic Proce-
dure with Diagnostic Trouble Code
(DTC).>
31 Front Sub Sensor RH fail-
ure
•Front sub sensor harness (RH) circuit is open
or shorted.
•Front sub sensor (RH) is faulty.
•Airbag control module is faulty.
Chart with Trouble Code.>
32 Front Sub Sensor LH fail-
ure
•Front sub sensor harness (LH) circuit is open
or shorted.
•Front sub sensor (LH) is faulty.
•Airbag control module is faulty.
Chart with Trouble Code.>
33 Front Sub Sensor RH fail-
ure
Fr o nt su b se ns or ( RH) i s fa u lt y. < Re f. t o A B ( d ia g ) - 76 , D TC 3 3 F RONT
SUB SENSOR RH FAILURE, Diagnostic
Chart with Trouble Code.>
34 Front Sub Sensor LH fail-
ure
Fr o nt su b se ns or ( RH) i s fa u lt y. < Re f. t o A B ( d ia g ) - 76 , D TC 3 4 F RONT
SUB SENSOR LH FAILURE, Diagnostic
Chart with Trouble Code.>
36 Seat Position Sensor LH
failure
•Driver's seat position sensor is faulty.
•Airbag control module is faulty.
•Airbag rear harness LH circuit is open,
shorted or shorted to ground.
Diagnostic Chart with Trouble Code.>
37 Buckle Switch RH failure • Passenger's seat buckle switch circuit is
open, shorted or shorted to ground.
•Occupant detection system is faulty.
•Occupant detection harness is faulty.
Refer to “Occupant Detection System”
for details on DTC 37.
URE, Diagnostic Procedure with Diag-
nostic Trouble Code (DTC).>
38 Buckle Switch LH failure • Driver's seat buckle switch circuit is open,
shorted or shorted to ground.
•Airbag rear harness LH circuit is open,
shorted or shorted to ground.
•Airbag control module is faulty.
with Trouble Code.>
39 Seatbelt Warning failure • Airbag control module is faulty.
•Body integrated module is faulty.
•Harness circuits between body integrated
module and air bag control module are open,
shorted or shorted to ground.
Chart with Trouble Code.>
41 Side Airbag RH failure • Side airbag harness (RH) circuit is faulty.
•Side airbag module (RH) is faulty.
•Airbag control module is faulty.
with Trouble Code.>
DTC Display Content of diagnosis Reference target
Page 88 of 2453
AB(diag)-64
Diagnostic Chart with Trouble Code
AIRBAG SYSTEM (DIAGNOSTICS)
H: DTC 24 IG1 OPEN
DTC DETECTING CONDITION:
•Airbag control module is faulty.
•Airbag main harness circuit is open.
•Fuse No. 12 (in joint 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 terminal from battery, and wait more than 20 seconds before starting to work.
•After replacing the airbag module, seat belt pretensioner, roll connector, control module and sen-
sor, reconnect each part and confirm that the warning light operates properly.
•When inspecting the airbag main harness, disconnect the airbag module connectors and seat belt
pretensioners of the driver’s and passenger’s seats for safety reasons.
WIRING DIAGRAM:
AB6
AB6
NO.12
5
AB-00939
1234567891011121314151617
1819202122232425262728
IGNITIONSWITCH
BATTERY
AIRBAG CONTROL MODULE
B31
AB110
AB1
123456789101112
Page 89 of 2453
AB(diag)-65
Diagnostic Chart with Trouble Code
AIRBAG SYSTEM (DIAGNOSTICS)
Step Check Yes No
1CHECK AIRBAG CONTROL MODULE.
1) Turn the ignition switch to OFF, disconnect
the battery ground cable, and wait more than
20 seconds.
2) Disconnect the connector (AB6) from air-
bag control module.
3) Connect the connector (1U) in the test har-
ness U to connector (AB6).
4) Connect the battery ground terminal and
turn the ignition switch to ON.
5) Measure the voltage between connector
(2U) in the test harness U and chassis ground.
Connector & terminal
(2U) No. 1 (+) — Chassis ground (–):
Is the voltage more than 10 V? Replace the airbag
control module.
Module.>
Go to step 2.
2CHECK FUSE NO. 12 (IN JOINT BOX).
1) Confirm that the ignition switch is turned to
OFF.
2) Remove the fuse No. 12 (in joint box) and
perform visual inspection.
Is the fuse No. 12 blown out? Replace the fuse
No. 12. If fuse No.
25 is blown out
again, repair the
body harness.
Replace the airbag
main harness with
body harness.
Go to step 3.
3CHECK AIRBAG CONTROL MODULE.
1) Connect all the connectors.
2) Erase the memory.
3) Perform the inspection mode.
4) Read the DTC.
Is the same DTC displayed? Replace the airbag
control module.
Module.>
Go to step 4.
4CHECK ANY OTHER DTC ON DISPLAY.Is any other DTC displayed? Check DTC using
“List of Diagnostic
Tr o u b l e C o d e
(DTC)”.
of Diagnostic Trou-
ble Code (DTC).>
Finish the diagno-
sis.
Page 90 of 2453
AB(diag)-66
Diagnostic Chart with Trouble Code
AIRBAG SYSTEM (DIAGNOSTICS)
I: DTC 25 IG2 OPEN
DTC DETECTING CONDITION:
•Airbag control module is faulty.
•Airbag main harness circuit is open.
•Fuse No. 25 (in joint 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 terminal from battery, and wait more than 20 seconds before starting to work.
•After replacing the airbag module, seat belt pretensioner, roll connector, control module and sen-
sor, reconnect each part and confirm that the warning light operates properly.
•When inspecting the airbag main harness, disconnect the airbag module connectors and seat belt
pretensioners of the driver’s and passenger’s seats for safety reasons.
WIRING DIAGRAM:
AB6
B31
AB1
AB6
NO.25
6
AB-00938
1234567891011121314151617
1819202122232425262728
IGNITIONSWITCH
BATTERY
AIRBAG CONTROL MODULE
9
AB1
123456789101112
Page 91 of 2453
AB(diag)-67
Diagnostic Chart with Trouble Code
AIRBAG SYSTEM (DIAGNOSTICS)
Step Check Yes No
1CHECK AIRBAG CONTROL MODULE.
1) Turn the ignition switch to OFF, disconnect
the battery ground cable, and wait more than
20 seconds.
2) Disconnect the connector (AB6) from air-
bag control module.
3) Connect the connector (1U) in the test har-
ness U to connector (AB6).
4) Connect the battery ground terminal and
turn the ignition switch to ON.
5) Measure the voltage between connector
(2U) in the test harness U and chassis ground.
Connector & terminal
(2U) No. 6 (+) — Chassis ground (–):
Is the voltage more than 10 V? Replace the airbag
control module.
Module.>
Go to step 2.
2CHECK FUSE NO. 25 (IN JOINT BOX).
1) Confirm that the ignition switch is turned to
OFF.
2) Remove the fuse No. 25 (in joint box) and
perform visual inspection.
Is the fuse No. 25 blown out? Replace the fuse
No. 25. If fuse No.
12 is blown out
again, repair the
body harness. Or
replace the airbag
main harness with
body harness.
Go to step 3.
3CHECK AIRBAG CONTROL MODULE.
1) Connect all the connectors.
2) Erase the memory.
3) Perform the inspection mode.
4) Read the DTC.
Is the same DTC displayed? Replace the airbag
control module.
Module.>
Go to step 4.
4CHECK ANY OTHER DTC ON DISPLAY.Is any other DTC displayed? Check DTC using
“List of Diagnostic
Tr o u b l e C o d e
(DTC)”.
of Diagnostic Trou-
ble Code (DTC).>
Finish the diagno-
sis.