Subaru B9 TRIBECA WX 2007 Manual page 171

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AIRBAG SYSTEM (DIAGNOSTICS)
Step
1 CHECK POOR CONTACT OF CONNEC-
TORS.
Check for poor contact of the connectors
between the airbag control module, side airbag
module LH and the side airbag sensor LH.
2 CHECK SIDE AIRBAG MODULE.
1) Turn the ignition switch to OFF, disconnect
the battery ground cable, and wait more than 20
seconds.
2) Disconnect the connector (AB20) from
(AB19), and connect the connector (1F) in test
harness F to connector (AB19).
3) Connect the airbag resistor to the connector
(3F) of test harness F.
4) Connect the battery ground terminal and
turn the ignition switch to ON.
3 CHECK AIRBAG REAR HARNESS LH (SIDE
AIRBAG MODULE HARNESS LH).
1) Turn the ignition switch to OFF, disconnect
the battery ground cable, and wait more than 20
seconds.
2) Disconnect the connector (AB21) from seat
belt pretensioner (LH).
3) Disconnect the connector (AB31) from cur-
tain airbag module (LH).
4) Disconnect the airbag resistor from test har-
ness.
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) Connect the battery ground terminal and
turn the ignition switch to ON.
8) Measure the voltage between connector
(3U) in the test harness U and chassis ground.
Connector & terminal
(3U) No. 12 (+) — Chassis ground (–):
(3U) No. 10 (+) — Chassis ground (–):
4 CHECK AIRBAG CONTROL MODULE.
1) Connect all the connectors.
2) Erase the memory.
3) Perform the Inspection Mode.
4) Read the DTC.
5 CHECK ANY OTHER DTC ON DISPLAY.
Diagnostic Chart with Trouble Code
Is there poor contact?
Does the airbag warning light
illuminate for 6 seconds and go
off?
Is the voltage less than 1 V?
Is the same DTC displayed?
Is any other DTC displayed?
AB(diag)-96
Check Yes
Replace the airbag
rear harness LH
along with the body
harness.
Replace the side
airbag module
(LH). <Ref. to AB-
16, REMOVAL,
Side Airbag Mod-
ule.>
Go to step 4.
Replace the airbag
control module.
<Ref. to AB-19,
Airbag Control
Module.>
Check DTC using
"List of Diagnostic
Trouble Code
(DTC)". <Ref. to
AB(diag)-47, List
of Diagnostic Trou-
ble Code (DTC).>
No
Go to step 2.
Go to step 3.
Replace the airbag
rear harness LH
along with the body
harness.
Go to step 5.
Finish the diagno-
sis.