ignition SUBARU TRIBECA 2009 1.G Service Owner's Guide
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Page 87 of 2453
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.
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.
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.
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 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.
Page 92 of 2453
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
Page 93 of 2453
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.
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.
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.
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
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 96 of 2453
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
Page 97 of 2453
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).
sor.> Replace the
airbag control
module if not oper-
ating normally
even after replac-
ing the sensor.
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.
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)”.
of Diagnostic Trou-
ble Code (DTC).>
Finish the diagno-
sis.