2009 SUBARU TRIBECA warning

AB(diag)-68
Diagnostic Chart with Trouble Code
AIRBAG SYSTEM (DIAGNOSTICS)
J: DTC 26 PASSENGER'S AIRBAG INDICATOR FAILURE
DTC DETECTING CONDITION:
•Passenger's seat airbag indicator is faulty.
•Airbag control module is faulty.
•Airbag main harness circuit is open.
•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 harness, disconnect the each airbag module connector, and seat belt
pretensioner for safety reasons.
WIRING DIAGRAM:
AB-01301
118
AB6
AB1
AB1
B3162
i116
i2
B403
56
65
AB6i116
AIRBAG CONTROL MODULE
WARNING BOX(PASSENGER SIDE)
1234567891011121314161715
1819202122232425262728
12346789510123456789101112
B403
123456789
1611101514131217 191823 252420 2221

AB(diag)-69
Diagnostic Chart with Trouble Code
AIRBAG SYSTEM (DIAGNOSTICS)
Step Check Yes No
1CHECK POOR CONTACT.
1) Turn the ignition switch to OFF, disconnect
the battery ground cable, and wait more than
20 seconds.
2) Confirm that the connector that is between
the airbag control module and the passenger’s
side warning box is securely connected.
Is there poor contact in any
connector?
Replace the airbag
harness connec-
tor.
Go to step 2.
2CHECK AIRBAG MAIN HARNESS.
1) Disconnect the connector (AB6) from air-
bag control module.
2) Connect the battery ground terminal and
turn the ignition switch to ON.
NOTE:
Neither of ON/OFF illuminates when it is nor-
mal.
Is the passenger's seat airbag
indicator lit?
Go to step 3.Go to step 4.
3CHECK AIRBAG MAIN HARNESS.
1) Turn the ignition switch to OFF.
2) Remove the passenger’s side warning box
and disconnect the connector (i116).
3) Connect the connector (1U) in the test har-
ness U to connector (AB6).
4) Measure the resistance between connec-
tors (2U) and (4U) in the test harness U and
chassis ground.
Connector & terminal
(2U) No. 14 — (4U) No. 17:
(2U) No. 14 — Chassis ground:
(4U) No. 17 — Chassis ground:
Is the resistance more than 1
MΩ?
Replace the pas-
senger’s side
warning box. to AC-46,
REMOVAL, Air
Ve n t G r i l l e . >
Repair the bulk-
head harness. Or
replace the airbag
main harness with
body harness.
4CHECK THE AIRBAG HARNESS.
1) Connect the connectors (7U) and (8U) in
the test harness U.
2) Connect the battery ground terminal and
turn the ignition switch to ON.
Is the passenger's seat airbag
indicator lit?
Replace the airbag
control module.
Airbag Control
Module.>
Go to step 5.
5CHECK THE AIRBAG HARNESS.
1) Turn the ignition switch to OFF.
2) Connect the connector (1U) in the test har-
ness U to connector (AB6).
3) Measure the resistance between connec-
tors (2U) and (4U) in the test harness U and
the connector (i116).
Connector & terminal
(2U) No. 14 — (i116) No. 5:
(4U) No. 17 — (i116) No. 6:
Is the resistance less than 10
Ω?
Go to step 6.Repair the bulk-
head harness. Or
replace the airbag
main harness with
body harness.
6CHECK BODY HARNESS.
1) Turn the ignition switch to ON.
2) Measure the voltage between connector
(i116) and chassis ground.
Connector & terminal
(i116) No. 3 — Chassis ground:
Is the voltage more than 10 V? Replace the pas-
senger’s side
warning box. to AC-46,
REMOVAL, Air
Ve n t G r i l l e . >
Repair the power
supply line to the
passenger’s side
warning box.

AB(diag)-72
Diagnostic Chart with Trouble Code
AIRBAG SYSTEM (DIAGNOSTICS)
P: DTC 31 FRONT SUB SENSOR RH FAILURE
DTC DETECTING CONDITION:
•Front sub sensor harness (RH) circuit is shorted.
•Front sub sensor harness (RH) circuit is open.
•Front sub sensor (RH) 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-00667
AB6
AB16
AB6
209
1 2
AB16
121234567891011121314151617
1819202122232425262728
AIRBAG CONTROL MODULE
FRONT SUB SENSOR RH

AB(diag)-74
Diagnostic Chart with Trouble Code
AIRBAG SYSTEM (DIAGNOSTICS)
Q: DTC 32 FRONT SUB SENSOR LH FAILURE
DTC DETECTING CONDITION:
•Front sub sensor harness (LH) circuit is shorted.
•Front sub sensor harness (LH) circuit is open.
•Front sub sensor (LH) 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-00668
AB6
AB13
AB6
1526
2 1
AB13
121234567891011121314151617
1819202122232425262728
AIRBAG CONTROL MODULE
FRONT SUB SENSOR LH

AB(diag)-77
Diagnostic Chart with Trouble Code
AIRBAG SYSTEM (DIAGNOSTICS)
T: DTC 36 SEAT POSITION SENSOR LH FAILURE
DTC DETECTING CONDITION:
•Driver's seat position sensor is faulty.
•Airbag control module is faulty.
•Airbag rear harness LH circuit is open, shorted or shorted to ground.
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 harness, disconnect the each airbag module connector, and seat belt
pretensioner for safety reasons.
WIRING DIAGRAM:
AB-00942
AB17
AB52
43
1 2
AIRBAG CONTROL MODULE
SEAT POSITION SENSOR LH
AB52
12
AB17
12 345678910 11 12
13 14 15 16 17 18 19 20

AB(diag)-78
Diagnostic Chart with Trouble Code
AIRBAG SYSTEM (DIAGNOSTICS)
U: DTC 37 BUCKLE SWITCH RH FAILURE
NOTE:
Refer to “Occupant Detection System” for details on DTC 37. SWITCH RH FAILURE, Diagnostic Procedure with Diagnostic Trouble Code (DTC).>
Step Check Yes No
1CHECK THE SEAT POSITION SENSOR (LH).
1) Turn the ignition switch to OFF, disconnect
the battery ground cable, and wait more than
20 seconds.
2) Disconnect the connector (AB52) from the
seat position sensor (LH).
3) Connect the connector (2Y) in the test har-
ness Y to connector (AB52).
4) Connect the battery ground terminal and
turn the ignition switch to ON.
Does the airbag warning light
illuminate for 6 seconds and go
off?
Replace the seat
position sensor
(LH) with the
driver's seat slide
rail assembly.
Front Seat.>
Go to step 2.
2CHECK AIRBAG REAR HARNESS LH (SEAT
POSITION SENSOR HARNESS LH).
1) Turn the ignition switch to OFF, disconnect
the battery ground cable, and wait more than
20 seconds.
2) Disconnect the connector (AB23) from side
airbag module (LH).
3) Disconnect the connector (AB31) from cur-
tain airbag module (LH).
4) Disconnect the connector (AB21) from seat
belt pretensioner (LH).
5) Disconnect the connector (AB17) from air-
bag control module.
6) Connect the connector (1U) in the test har-
ness U to connector (AB17).
7) Disconnect the seat position sensor (LH),
and then connect the connector (1H) in the test
harness H to connector (AB52).
8) Measure the resistance between connector
(3U) in the test harness U and connector (3H)
in the test harness H.
Connector & terminal
(3U) No. 1 — (3H) No. 6:
(3U) No. 3 — (3H) No. 5:
Is the resistance less than 10
Ω?
Go to step 3.Replace the airbag
rear harness LH
with the body har-
ness.
3CHECK AIRBAG REAR HARNESS LH.
Measure the resistance between connector
(3U) in the test harness U and chassis ground.
Connector & terminal
(3U) No. 1 — Chassis ground:
Is the resistance less than 10
Ω?
Replace the airbag
rear harness LH
with the body har-
ness.
Replace the airbag
control module.

AB(diag)-79
Diagnostic Chart with Trouble Code
AIRBAG SYSTEM (DIAGNOSTICS)
V: DTC 38 BUCKLE SWITCH LH FAILURE
DTC DETECTING CONDITION:
•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.
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 harness, disconnect the each airbag module connector, and seat belt
pretensioner for safety reasons.
WIRING DIAGRAM:
AB-00943
AB17
AB51
192
1 2
AIRBAG CONTROL MODULE
BUCKLE SWITCH LH
AB51
12
AB17
12 345678910 11 12
13 14 15 16 17 18 19 20

AB(diag)-80
Diagnostic Chart with Trouble Code
AIRBAG SYSTEM (DIAGNOSTICS)
Step Check Yes No
1CHECK SEAT BELT BUCKLE SWITCH (LH).
1) Turn the ignition switch to OFF, disconnect
the battery ground cable, and wait more than
20 seconds.
2) Disconnect the connector (AB51) from the
buckle switch (LH).
3) Connect the connector (1Y) in the test har-
ness Y to connector (AB51).
4) Connect the battery ground terminal and
turn the ignition switch to ON.
Does the airbag warning light
illuminate for 6 seconds and go
off?
Replace the seat
belt buckle switch
(LH). 10, Front Seat
Belt.>
Go to step 2.
2CHECK AIRBAG REAR HARNESS LH
(BUCKLE SWITCH HARNESS LH).
1) Turn the ignition switch to OFF, disconnect
the battery ground cable, and wait more than
20 seconds.
2) Disconnect the connector (AB23) from side
airbag module (LH).
3) Disconnect the connector (AB31) from cur-
tain airbag module (LH).
4) Disconnect the connector (AB21) from seat
belt pretensioner (LH).
5) Disconnect the connector (AB17) from air-
bag control module.
6) Connect the connector (1U) in the test har-
ness U to connector (AB17).
7) Disconnect the seat belt buckle switch (LH),
and then connect the connector (1D) in the test
harness D to connector (AB51).
8) Measure the resistance between connec-
tors (4U) and (5U) in the test harness U and
connector (3D) in the test harness D.
Connector & terminal
(4U) No. 11 — (3D) No. 3:
(4U) No. 9 — (3D) No. 4:
Is the resistance less than 10
Ω?
Go to step 3.Replace the airbag
rear harness LH
with the body har-
ness.
3CHECK AIRBAG REAR HARNESS LH.
Measure the resistance between connector
(3U) in the test harness U and chassis ground.
Connector & terminal
(4U) No. 9 — (4U) No. 11:
(4U) No. 9 — Chassis ground:
Is the resistance less than 10
Ω?
Replace the airbag
rear harness LH
with the body har-
ness.
Replace the airbag
control module.