Subaru B9 TRIBECA WX 2007, Manual

Page: 163 / 861

AB(diag)- 88
Diagnostic Chart with Trouble Code
AIRBAG SYSTEM (DIAGNOSTICS)
Step Check Yes No
1 CHECK POOR CONTACT OF CONNEC-
TORS.
Check for poor contact of the connectors
between the airbag control module, side airbag
module RH and the side airbag sensor RH.
Is there poor contact? Replace the airbag
rear harness RH
along with body
harness. Go to step 2 .
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 (AB25) from
(AB24), and connect the connector (1F) in test
harness F to connector (AB24).
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.
Does the airbag warning light
illuminate for 6 seconds and go
off? Replace the side
airbag module
(RH). <Ref. to AB-
16, REMOVAL,
Side Airbag Mod-
ule.> Go to step
3
.
3 CHECK AIRBAG REAR HARNESS RH (SIDE
AIRBAG MODULE HARNESS RH).
1) Turn the ignition switch to OFF, disconnect
the battery ground cable, and wait more than 20
seconds.
2) Disconnect the connector (AB26) from seat
belt pretensioner (RH).
3) Disconnect the connector (AB33) from cur-
tain airbag module (RH).
4) Disconnect the airbag resistor from test har-
ness F.
5) Disconnect the connector (AB18) from air-
bag control module.
6) Connect the connector (1U) in the test har-
ness U to connector (AB18).
7) Measure the resistance between connector
(3U) in the test harness U and connector (3F) in
the test harness F.
Connector & terminal
(3U) No. 20 — (3F) No. 4:
(3U) No. 18 — (3F) No. 3:
Is the resistance less than 10
Ω
?
Go to step 4 . Replace the airbag
rear harness RH
along with body
harness.
4 CHECK AIRBAG REAR HARNESS RH (SIDE
AIRBAG MODULE HARNESS RH).
Measure the resistance between connector
(3U) terminals in the test harness U.
Connector & terminal
(3U) No. 20 — (3U) No. 18:
Is the resistance more than 1
M
Ω
?
Go to step
5
. Replace the airbag
rear harness RH
along with body
harness.
5 CHECK AIRBAG REAR HARNESS RH (SIDE
AIRBAG MODULE HARNESS RH).
Measure the resistance between connector
(3U) in the test harness U and chassis ground.
Connector & terminal
(3U) No. 20 — Chassis ground:
(3U) No. 18 — Chassis ground:
Is the resistance more than 1
M
Ω
?
Go to step 6 . Replace the airbag
rear harness RH
along with body
harness.
6 CHECK 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.
<Ref. to AB-19,
Airbag Control
Module.> Go to step 7 .
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