2009 SUBARU TRIBECA Service Workshop Manual

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Page 97 of 2453

SUBARU TRIBECA 2009 1.G Service Workshop Manual AB(diag)-73
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)-73
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
front sub sensor RH.
Is there poor contact? Repair the con-
nector.
Go to step 2.
2CHECK AIRBAG MAIN HARNESS (FRONT
SUB SENSOR HARNESS RH).
1) Turn the ignition switch to OFF, disconnect
the battery ground cable, and wait more than
20 seconds.
2) Remove the instrument panel lower cover
and disconnect the connectors (AB7) and
(AB2).
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.
5) Connect the connector (1U) in the test har-
ness U to connector (AB6).
6) Disconnect the front sub sensor (RH), and
then connect the connector (1H) in the test
harness H to connector (AB16).
7) Measure the resistance between connector
(3U) in the test harness U and connector (3H)
in the test harness H.
Connector & terminal
(3U) No. 7 — (3H) No. 5:
(3U) No. 9 — (3H) No. 6:
Is the resistance less than 10
Ω?
Go to step 3.Replace the airbag
main harness with
body harness.
3CHECK AIRBAG MAIN HARNESS (FRONT
SUB SENSOR HARNESS RH).
Measure the resistance between connector
(3U) in the test harness U and chassis ground.
Connector & terminal
(3U) No. 7 — Chassis ground:
(3U) No. 9 — Chassis ground:
Is the resistance more than 1
MΩ?
Replace the front
sub sensor (RH).
Front Sub Sen-
sor.> Replace the
airbag control
module if not oper-
ating normally
even after replac-
ing the sensor.
Airbag Control
Module.>
Go to step 4.
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 98 of 2453

SUBARU TRIBECA 2009 1.G Service Workshop Manual 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

Page 99 of 2453

SUBARU TRIBECA 2009 1.G Service Workshop Manual AB(diag)-75
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)-75
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
front sub sensor LH.
Is there poor contact? Replace the airbag
main harness with
body harness.
Go to step 2.
2CHECK AIRBAG MAIN HARNESS (FRONT
SUB SENSOR HARNESS LH).
1) Turn the ignition switch to OFF, disconnect
the battery ground cable, and wait more than
20 seconds.
2) Remove the instrument panel lower cover
and disconnect the connectors (AB7) and
(AB2).
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.
5) Connect the connector (1U) in the test har-
ness U to connector (AB6).
6) Disconnect the front sub sensor (LH), and
then connect the connector (1H) in the test
harness H to connector (AB13).
7) Measure the resistance between connector
(3U) in the test harness U and connector (3H)
in the test harness H.
Connector & terminal
(3U) No. 6 — (3H) No. 5:
(3U) No. 8 — (3H) No. 6:
Is the resistance less than 10
Ω?
Go to step 3.Replace the airbag
main harness with
body harness.
3CHECK AIRBAG MAIN HARNESS (FRONT
SUB SENSOR HARNESS LH).
Measure the resistance between connector
(3U) in the test harness U and chassis ground.
Connector & terminal
(3U) No. 6 — Chassis ground:
(3U) No. 8 — Chassis ground:
Is the resistance more than 1
MΩ?
Replace the front
sub sensor (LH).
Front Sub Sen-
sor.> Replace the
airbag control
module if not oper-
ating normally
even after replac-
ing the sensor.
Airbag Control
Module.>
Go to step 4.
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 100 of 2453

SUBARU TRIBECA 2009 1.G Service Workshop Manual AB(diag)-76
Diagnostic Chart with Trouble Code
AIRBAG SYSTEM (DIAGNOSTICS)
R: DTC 33 FRONT SUB SENSOR RH FAILURE
DTC DETECTING CONDITION:
Front sub sensor (RH) is faulty.
If DTC 33 is displayed,

Page 101 of 2453

SUBARU TRIBECA 2009 1.G Service Workshop Manual AB(diag)-77
Diagnostic Chart with Trouble Code
AIRBAG SYSTEM (DIAGNOSTICS)
T: DTC 36 SEAT POSITION SENSOR LH FAILURE
DTC DETECTING CONDITION:
•Drivers seat position sensor is faulty.
•Airbag cont

Page 102 of 2453

SUBARU TRIBECA 2009 1.G Service Workshop Manual 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. <Ref. to

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.

Page 103 of 2453

SUBARU TRIBECA 2009 1.G Service Workshop Manual AB(diag)-79
Diagnostic Chart with Trouble Code
AIRBAG SYSTEM (DIAGNOSTICS)
V: DTC 38 BUCKLE SWITCH LH FAILURE
DTC DETECTING CONDITION:
•Drivers seat buckle switch circuit is open, shorted or shorte

Page 104 of 2453

SUBARU TRIBECA 2009 1.G Service Workshop Manual 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 cab

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