2009 SUBARU TRIBECA Service Workshop Manual

lock fuel type fuel additives four wheel drive trip computer ESP inoperative

Page 81 of 2453

SUBARU TRIBECA 2009 1.G Service Workshop Manual AB(diag)-57
Diagnostic Chart with Trouble Code
AIRBAG SYSTEM (DIAGNOSTICS)
Step Check Yes No
1CHECK POOR CONTACT OF CONNEC-
TORS.
Check for poor contact of the connectors
between the airbag control m

AB(diag)-57
Diagnostic Chart with Trouble Code
AIRBAG SYSTEM (DIAGNOSTICS)
Step Check Yes No
1CHECK POOR CONTACT OF CONNEC-
TORS.
Check for poor contact of the connectors
between the airbag control module and the
driver's airbag module.
Is there poor contact? Replace the airbag
harness.
Go to step 2.
2CHECK DRIVER'S AIRBAG MODULE.
1) Turn the ignition switch to OFF, disconnect
the battery ground cable, and wait more than
20 seconds.
2) Remove the driver’s airbag module.
3) Connect the connector (AB38) to the con-
nector (1N) in the test harness N.
4) Connect the airbag resistor to the connec-
tor (2N) of test harness N.
5) Connect the connector (1Q) in the test har-
ness Q to connector (AB37).
6) Connect the airbag resistor to the connec-
tor (2Q) of test harness Q.
7) 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
driver's airbag
module. AB-15, Driver’s
Airbag Module.>
Go to step 3.
3CHECK ROLL CONNECTOR.
1) Turn the ignition switch to OFF, disconnect
the battery ground cable, and wait more than
20 seconds.
2) Disconnect the test harness N from con-
nector (AB38).
3) Disconnect the test harness Q from con-
nector (AB37).
4) Remove the instrument panel lower cover
and disconnect the connector (AB7) from
(AB2).
5) Connect the connector (1P) in the test har-
ness P to connector (AB2).
6) Connect the airbag resistor to the connec-
tors (2P) and (3P) of test harness P.
7) 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 roll
connector. AB-24, Roll Con-
nector.>
Go to step 4.
4CHECK AIRBAG MAIN HARNESS (DRIV-
ER'S AIRBAG HARNESS).
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
connectors (2P) and (3P) of test harness P.
3) Remove the console side cover lower on
the passenger's side and disconnect the con-
nectors (AB10) and (AB9).
4) Disconnect the connector (AB6) from air-
bag control module, and connect the connector
(1U) in the test harness U.
5) Connect the battery ground terminal and
turn the ignition switch to ON. (Engine OFF)
6) Measure the voltage between connector
(2U) in the test harness U and chassis ground.
Connector & terminal
(2U) No. 4 (+) — Chassis ground (–):
(2U) No. 2 (+) — Chassis ground (–):
(2U) No. 8 (+) — Chassis ground (–):
(2U) No. 12 (+) — Chassis ground (–):
Is the voltage less than 1 V? Go to step 5.Replace the airbag
main harness with
body harness.

Page 82 of 2453

SUBARU TRIBECA 2009 1.G Service Workshop Manual AB(diag)-58
Diagnostic Chart with Trouble Code
AIRBAG SYSTEM (DIAGNOSTICS)
5CHECK AIRBAG CONTROL MODULE.
1) Connect all the connectors.
2) Erase the memory.
3) Perform the inspection mode.
4) Read the

Page 83 of 2453

SUBARU TRIBECA 2009 1.G Service Workshop Manual AB(diag)-59
Diagnostic Chart with Trouble Code
AIRBAG SYSTEM (DIAGNOSTICS)
D: DTC 16 PASSENGERS AIRBAG FAILURE
DTC DETECTING CONDITION:
•Airbag main harness circuit (Passengers side) is shorted to

Page 84 of 2453

SUBARU TRIBECA 2009 1.G Service Workshop Manual AB(diag)-60
Diagnostic Chart with Trouble Code
AIRBAG SYSTEM (DIAGNOSTICS)
Step Check Yes No
1CHECK POOR CONTACT OF CONNEC-
TORS.
Check for poor contact of the connectors
between the airbag control m

AB(diag)-60
Diagnostic Chart with Trouble Code
AIRBAG SYSTEM (DIAGNOSTICS)
Step Check Yes No
1CHECK POOR CONTACT OF CONNEC-
TORS.
Check for poor contact of the connectors
between the airbag control module and the
passenger's airbag module.
Is there poor contact? Replace the airbag
harness with chas-
sis harness.
Go to step 2.
2CHECK PASSENGER'S AIRBAG MODULE.
1) Turn the ignition switch to OFF, disconnect
the battery ground cable, and wait more than
20 seconds.
2) Remove the console side cover lower on
the passenger's side.
3) Disconnect the connector (AB10) from
(AB9).
4) Connect the connector (1P) in the test har-
ness P to connector (AB9).
5) Connect the airbag resistor to the connec-
tors (2P) and (3P) of test harness P.
6) 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 pas-
senger's airbag
module. AB-16, Passen-
ger’s Airbag Mod-
ule.>
Go to step 3.
3CHECK AIRBAG MAIN HARNESS (PASSEN-
GER'S AIRBAG HARNESS).
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
connectors (2P) and (3P) of test harness P.
3) Remove the instrument panel lower cover
and disconnect the connector (AB7) from
(AB2).
4) Disconnect the connector (AB6) from air-
bag control module, and connect the connector
(1U) in the test harness U.
5) Measure the voltage between connector
(2U) in the test harness U and chassis ground.
Connector & terminal
(2U) No. 3 (+) — Chassis ground (–):
(2U) No. 5 (+) — Chassis ground (–):
(2U) No. 9 (+) — Chassis ground (–):
(2U) No. 13 (+) — Chassis ground (–):
Is the voltage less than 1 V? Go to step 4.Replace the airbag
main harness with
body harness.
4CHECK 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.
Airbag Control
Module.>
Go to step 5.
5CHECK 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)”. AB(diag)-45, List
of Diagnostic Trou-
ble Code (DTC).>
Finish the diagno-
sis.

Page 85 of 2453

SUBARU TRIBECA 2009 1.G Service Workshop Manual AB(diag)-61
Diagnostic Chart with Trouble Code
AIRBAG SYSTEM (DIAGNOSTICS)
E: DTC 21 AIRBAG ECU FAILURE
DTC DETECTING CONDITION:
Airbag control module is faulty.
CAUTION:
•Before diagnosing the airb

Page 86 of 2453

SUBARU TRIBECA 2009 1.G Service Workshop Manual AB(diag)-62
Diagnostic Chart with Trouble Code
AIRBAG SYSTEM (DIAGNOSTICS)
F: DTC 22 FRONT AIRBAG FIRING OUTPUT
WIRING DIAGRAM:
AB-00922
AB6AB18AB17
AB2612AB9
AB10
AB211412
171613141110
AB2
AB7
AB381

Page 87 of 2453

SUBARU TRIBECA 2009 1.G Service Workshop Manual AB(diag)-63
Diagnostic Chart with Trouble Code
AIRBAG SYSTEM (DIAGNOSTICS)
This DTC is indicated when the front airbag module and the pretensioner are deployed.
Once this DTC is displayed, the memory

AB(diag)-63
Diagnostic Chart with Trouble Code
AIRBAG SYSTEM (DIAGNOSTICS)
This DTC is indicated when the front airbag module and the pretensioner are deployed.
Once this DTC is displayed, the memory cannot be cleared. Therefore replace the following parts.
•Airbag control module
•Driver's airbag module
•Passenger's airbag module
•Front sub sensor of both sides
•Front seat belt outer with pretensioner of both sides.
•Steering roll connector
•Occupant detection system (passenger’s seat cushion & frame assembly)
G: DTC 23 CONNECTOR TO AIRBAG ECU FAILURE
DTC DETECTING CONDITION:
Connection of (AB6), (AB17) and (AB18) to airbag control module is improper.
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.
Step Check Yes No
1CHECK POOR CONTACTS OF CONNEC-
TORS (AB6), (AB17) AND (AB18).
1) Turn the ignition switch to OFF, disconnect
the battery ground cable, and wait more than
20 seconds.
2) Disconnect the connectors (AB6), (AB17)
and (AB18) from airbag control module.
Is there rust or damage on the
harness connector and the
control module connector?
Replace the airbag
control module.
Airbag Control
Module.> Replace
the body harness
with the airbag
main harness or
replace the body
harness with the
side airbag har-
ness.
Go to step 2.
2CHECK POOR CONTACTS OF CONNEC-
TORS (AB6), (AB17) AND (AB18).
1) Reconnect the connector securely.
2) Connect the battery ground terminal and
turn the ignition switch to ON.
Does the airbag warning light
illuminate for 6 seconds and go
off?
Go to step 3.Replace the airbag
control module.
Airbag Control
Module.>
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.
Airbag Control
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)”. AB(diag)-45, List
of Diagnostic Trou-
ble Code (DTC).>
Finish the diagno-
sis.

Page 88 of 2453

SUBARU TRIBECA 2009 1.G Service Workshop Manual 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.
•Fu

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