2009 SUBARU TRIBECA Service Workshop Manual

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Page 89 of 2453

SUBARU TRIBECA 2009 1.G Service Workshop Manual 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

Page 90 of 2453

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

Page 91 of 2453

SUBARU TRIBECA 2009 1.G Service Workshop Manual 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

Page 92 of 2453

SUBARU TRIBECA 2009 1.G Service Workshop Manual AB(diag)-68
Diagnostic Chart with Trouble Code
AIRBAG SYSTEM (DIAGNOSTICS)
J: DTC 26 PASSENGERS AIRBAG INDICATOR FAILURE
DTC DETECTING CONDITION:
•Passengers seat airbag indicator is faulty.
•Ai

Page 93 of 2453

SUBARU TRIBECA 2009 1.G Service Workshop Manual 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 mor

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.

Page 94 of 2453

SUBARU TRIBECA 2009 1.G Service Workshop Manual AB(diag)-70
Diagnostic Chart with Trouble Code
AIRBAG SYSTEM (DIAGNOSTICS)
K: DTC 27 ODS COMMUNICATION ERROR
DTC DETECTING CONDITION:
•Occupant detection control module communication is faulty.
•A

AB(diag)-70
Diagnostic Chart with Trouble Code
AIRBAG SYSTEM (DIAGNOSTICS)
K: DTC 27 ODS COMMUNICATION ERROR
DTC DETECTING CONDITION:
•Occupant detection control module communication is faulty.
•Airbag rear harness circuit is open, shorted, shorted to ground or shorted to power supply.
•Occupant detection harness (seat harness) is faulty.
•Occupant detection system is faulty.
•Airbag control module is faulty.
Step Check Yes No
1CHECK POOR CONTACT OF CONNEC-
TORS.
Check for poor contact of the connectors
between the airbag control module and the
occupant detection control module.
Is there poor contact? Reconnect the
connector. If
defective is not
improved, replace
the airbag rear
harness RH or the
occupant detection
harness (seat har-
ness).
Go to step 2.
2CHECK THE AIRBAG HARNESS.
1) Turn the ignition switch to OFF, disconnect
the battery ground cable, and wait more than
20 seconds.
2) Disconnect the connector (AB18) from air-
bag control module.
3) Disconnect the connectors (AB59) and
(AB61) under the passenger's seat.
4) Connect the connector (1U) in the test har-
ness U to connector (AB18).
5) Connect the connector (1AB) in the test
harness AB to the connector (AB61).
6) Measure the resistance between connector
(3U) in the test harness U and connector (2AB)
in the test harness AB.
Connector & terminal
(3U) No. 2 — (2AB) No. 1:
(3U) No. 4 — (2AB) No. 2:
Is the resistance less than 10
Ω?
Go to step 3.Replace the airbag
rear harness RH
with body harness.
3CHECK THE AIRBAG HARNESS.
Measure the resistance between connector
(3U) in the test harness U and chassis ground.
Connector & terminal
(3U) No. 2 — Chassis ground:
(3U) No. 2 — (3U) No.4:
Is the resistance less than 10
Ω?
Go to step 4.Replace the airbag
rear harness RH
with the body har-
ness.
4CHECK THE AIRBAG HARNESS.
1) Turn the ignition switch to ON.
2) Measure the voltage between connector
(2AB) in the test harness AB and chassis
ground.
Connector & terminal
(2AB) No. 3 — chassis ground:
Is the voltage more than 9 V? Go to step 5.Check the battery
voltage and fuse. If
there is no faulty,
replace the airbag
rear harness RH
with body harness.

Page 95 of 2453

SUBARU TRIBECA 2009 1.G Service Workshop Manual AB(diag)-71
Diagnostic Chart with Trouble Code
AIRBAG SYSTEM (DIAGNOSTICS)
L: DTC 29 ODS FAILURE
NOTE:
Refer to “Occupant Detection System” for details on DTC 29. <Ref. to OD(diag)-29, DTC 29 ODS

Page 96 of 2453

SUBARU TRIBECA 2009 1.G Service Workshop Manual 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

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