2009 SUBARU TRIBECA warning light

AB-4
General Description
AIRBAG SYSTEM
10.CURTAIN AIRBAG MODULE
Tightening torque:
7.5 N·m (0.77 kgf-m, 5.5 ft-lb)
B: CAUTION
•When servicing a vehicle, be sure to turn the ig-
nition switch to OFF, disconnect the ground cable
from battery, and wait for more than 20 seconds
before starting work.
•The airbag system is fitted with a backup power
source. After disconnecting the battery ground ca-
ble, the airbag may deploy if you do not wait for
more than 20 seconds before starting the service of
airbag system.
•If the airbag warning light illuminates, repair the
vehicle immediately. Otherwise, the airbag or pre-
tensioner may inflate incorrectly, or not inflate in
collision.
•If sensors, airbag module, airbag control module,
pretensioner or harness is deformed or damaged,
replace with new part.
•When checking the airbag system, be sure to
use a digital circuit tester. Use of an analog circuit
tester may cause the airbag to activate erroneously
due to a minimal current inside tester.
(F) Front side (1) Bolt
AB-01274
(1)(1)
(1)
(1)(1)(1)(1)(1)(1)(1)
(1)
(1)
(F)
IN-00203
AB-00120
AB-00121

AB(diag)-2
Basic Diagnostic Procedure
AIRBAG SYSTEM (DIAGNOSTICS)
1. Basic Diagnostic Procedure
A: PROCEDURE
Step Check Yes No
1CHECK WARNING LIGHT.
Check whether the airbag warning light in the
combination meter is lit.
Does the airbag warning light
illuminate?
Go to step 2.Perform the diag-
nosis according to
phenomenon of
the problem.
2READ DTC.
1) Turn the ignition switch to OFF.
2) Connect the Subaru Select Monitor to data
link connector.
3) Turn the ignition switch to ON, and the Sub-
aru Select Monitor power switch to ON.
4) Read the DTC. OPERATION, Read Diagnostic Trouble Code
(DTC).>
NOTE:If the communication function of the Subaru Se-
lect Monitor cannot be executed normally,
check the communication circuit. AB(diag)-33, COMMUNICATION FOR INI-
TIALIZING IMPOSSIBLE, INSPECTION, Sub-
aru Select Monitor.>
5) Record all DTCs and freeze frame data.
Is DTC displayed? Go to step 3. 40, Airbag Warn-
ing Light Fail-
ure.>Go to “Airbag
Wa r ni n g L ig h t Fa i l-
ure”.
3PERFORM DIAGNOSIS.
1) Judge the possible cause from “List of
Diagnostic Trouble Code” 45, List of Diagnostic Trouble Code (DTC).>.
2) Inspect the DTC using “List of Diagnostic
Tr o u b l e C o d e ( D T C ) ” .
3) Repair the trouble cause.
4) Perform the clear memory mode. AB(diag)-38, Clear Memory Mode.>
5) Perform the inspection mode. AB(diag)-37, Inspection Mode.>
6) Read any other DTCs displayed.
Is DTC displayed? Perform the proce-
dure 1) to 5) in
step 3.
Finish the diagno-
sis.

AB(diag)-3
Check List for Interview
AIRBAG SYSTEM (DIAGNOSTICS)
2. Check List for Interview
A: CHECK
Customer's name Inspector's name
Date vehicle brought in / / Registration No.
Odometer readingkm
milesV. I . N .
Date problem occurred / / Registration year / /
Weather
Fine
Cloudy
Rainy
Snowy
Others:
Te m p e r a t u r e ° C ( ° F )
Road condition
Flat road
Uphill
Downhill
Gravel road
Others:
Ve h i c l e o p e r a t i o n
Starting
Idling
Driving
Constant speed
Accelerating
Decelerating
Turning
Others:
Details of problem
Airbag warning light operation
Normal (After turning the ignition switch to ON, lit for approximately 6 seconds and goes off.)
Remains ON
Light OFF
DTC output OK code
DTC: (Code: )

AB(diag)-29
Airbag Control Module I/O Signal
AIRBAG SYSTEM (DIAGNOSTICS)
6. Airbag Control Module I/O Signal
A: ELECTRICAL SPECIFICATION
•Terminal numbers in airbag control module connector are shown in the figure.
•Airbag warning light illuminates when the connector is removed from airbag control module.
Item Control module terminal No.
Line end check connector(1)-2
Diagnosis connector(1)-19
Data link connector(1)-12
Combination meter(1)-3
Battery power supply Common use fuse (1)-6
Dedicated fuse (1)-5
Passenger’s airbag module level one + (1)-10
–(1)-11
Passenger’s airbag module level two + (1)-8
–(1)-7
Driver’s airbag module level one + (1)-14
–(1)-13
Driver’s airbag module level two + (1)-16
–(1)-17
Fr o nt su b se ns or L H Powe r su p pl y a n d co mmu-
nication(1)-15
GND (1)-26
Fr o nt su b se ns or RH Powe r su p pl y a n d co mmu-
nication(1)-9
GND (1)-20
Ground line (GND)(1)-27
(1)-28
Passenger’s airbag OFF indicator (1)-1
Passenger’s airbag ON indicator (1)-18
Passenger’s seat belt war ning light (integrated module) (1)-24
Seat belt buckle switch LH + (2)-19
–(2)-2
Seat position sensor LH + (2)-3
–(2)-4
AB-00937
123456789101112
1314151617181920
123456789101112
1314151617181920
1234567891011121314151617
1819202122232425262728
(1)(2) (3)

AB(diag)-35
Subaru Select Monitor
AIRBAG SYSTEM (DIAGNOSTICS)
2. WITHOUT DTC
DETECTING CONDITION:
•Defective combination meter
•Open circuit of harness
TROUBLE SYMPTOM:
•Airbag warning light remains on.
•“NO TROUBLE CODE” will be displayed on the Subaru Select Monitor.
For detailed operation procedure, refer to “Airbag Warning Light Failure”. ing Light Failure.>
NOTE:
•For detailed operation procedure, refer to “Airbag Warning Light Failure”. Warning Light Failure.>
•When the airbag warning light is OFF and “NO TROUBLE CODE” is displayed on Subaru Select Monitor,
the system is in normal condition.
9CHECK THE HARNESS BETWEEN THE AIR-
BAG CONTROL MODULE AND DATA LINK
CONNECTOR.
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) Measure the resistance between connector
(4U) in the test harness U and the data link
connector.
Connector & terminal
(4U) No. 18 — (B40) No. 10:
Is the resistance less than 10
Ω?
Go to step 10.Repair the har-
ness between the
airbag control
module and the
data link connec-
tor. Or replace the
airbag main har-
ness with the bulk-
head harness.
10 CHECK POWER SUPPLY CIRCUIT.
1) Turn the ignition switch to ON.
2) Measure the voltage between connector
(2U) in the test harness U and chassis ground.
Connector & terminal
(2U) No. 1 — Chassis ground:
(2U) No. 6 — Chassis ground:
Is the voltage more than 10 V? Go to step 11.Repair the har-
ness between the
airbag control
module and the
battery. Or replace
the airbag main
harness with the
bulkhead harness.
11 CHECK BETWEEN THE AIRBAG CONTROL
MODULE AND CHASSIS GROUND.
1) Turn the ignition switch to OFF.
2) Measure the resistance between connector
(2U) in the test harness U and chassis ground.
Connector & terminal
(2U) No. 10 — Chassis ground:
(2U) No. 11 — Chassis ground:
Is the resistance less than 10
Ω?
Go to step 12.Repair the har-
ness between the
airbag control
module and the
chassis ground. Or
replace the airbag
main harness with
the bulkhead har-
ness.
12 CHECK POOR CONTACT OF CONNECTOR.Is there poor contact in the
control module power supply,
ground circuit and data link
connector?
Repair the con-
nector. (Replace
the harness with-
out repairing the
airbag system
connector.)
Replace the only
airbag control
module. AB-21, REMOVAL,
Airbag Control
Module.>
Step Check Yes No

AB(diag)-39
Airbag Warning Light Illumination Pattern
AIRBAG SYSTEM (DIAGNOSTICS)
11.Airbag Warning Light Illumi-
nation Pattern
A: INSPECTION
Turn the ignition switch to ON, and confirm that the
airbag warning light remains on for approx. 6 sec-
onds then go off afterwards.
(1) Airbag warning light
(2) Approx. 6 sec.
(3) Ignition switch ON
AB-00135
(1)
(2)
(3)
OFF
ON

AB(diag)-40
Airbag Warning Light Failure
AIRBAG SYSTEM (DIAGNOSTICS)
12.Airbag Warning Light Failure
A: AIRBAG WARNING LIGHT REMAINS ON
DETECTING CONDITION:
•Airbag warning light is faulty.
•Airbag control module to airbag warning light circuit is shorted or open.
•Grounding circuit is faulty.
•Airbag control module is faulty.
•Connection of (AB1) and (B31) is improper.
•Connection of (AB6) 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.
•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-01298
AB6
B31
AB1
No.5
3
B12
A3A4
11
AB6AB1i10
B403i2
i126i127
i10A:i11B:
B403
1
13
123456789
1611101514131217 191823 252420 2221
435689122827141110 133029262524232221201918172116157
1245614131211109873
i11
1245614715 1613121110983
i102
1234567891011121314151617
1819202122232425262728
IGNITIONSWITCH
COMBINATION METER
BATTERY
AIRBAG WARNING LIGHT
AIRBAG CONTROL MODULE
:TERMINAL NO. OPTIONAL ARRANGEMENT AMONG 7, 8 AND 9
:TERMINAL NO. OPTIONAL ARRANGEMENT AMONG 10, 11 AND 12
REVERSECIRCUIT
123456789101112
i126
i127
1256347891011 12
2*
2***
1*

AB(diag)-41
Airbag Warning Light Failure
AIRBAG SYSTEM (DIAGNOSTICS)
Step Check Yes No
1READ DTC.
Read the DTC. DIAGNOSTIC TROUBLE CODE (DTC),
OPERATION, Subaru Select Monitor.>
Is DTC displayed? Perform the diag-
nosis according to
DTC.
Go to step 2.
2CHECK POOR CONTACT.
1) Turn the ignition switch to OFF, disconnect
the battery ground cable, and wait more than
20 seconds.
2) Confirm that there is solid connection
between the airbag control module and con-
nector (AB6).
Is there poor contact in con-
nector (AB6)?
If the poor contact
of the connector is
not fixed, replace
the airbag main
harness with body
harness or replace
the airbag control
module. AB-21, Airbag
Control Module.>
Go to step 3.
3CHECK AIRBAG MAIN HARNESS.
1) Remove the instrument panel lower cover
and disconnect the connectors (AB7) and
(AB2).
2) Remove the console side cover lower on
the passenger's side and disconnect the con-
nectors (AB10) and (AB9).
3) Disconnect the connector (AB6) from air-
bag control module, and connect the connector
(1U) in the test harness U.
4) Connect the battery ground terminal and
turn the ignition switch to ON.
5) Connect the connectors (7U) and (8U) in
the test harness U.
NOTE:After the fault has been cleared, disconnect the
connectors (7U) and (8U).
Does the airbag warning light
go off?
Go to step 4.Go to step 5.
4CHECK GROUND CIRCUIT.
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 body harness connector (AB6).
4) Measure the resistance between connector
(2U) in the test harness U and chassis ground.
Connector & terminal
(2U) No. 10 — Chassis ground:
(2U) No. 11 — Chassis ground:
Is the resistance less than 10
Ω?
Replace the airbag
control module.
Airbag Control
Module.>
Repair the chas-
sis ground circuit.
5CHECK AIRBAG MAIN HARNESS AND
BULKHEAD HARNESS.
1) Disconnect the connectors (7U) and (8U).
2) Remove the combination meter.
3) Measure the resistance between connector
(i11) and connector (2U) in the test harness U.
Connector & terminal
(2U) No. 7 — (i11) No. 12:
Is the resistance less than 10
Ω?
Check the combi-
nation meter.
Go to step 6.