Subaru B9 TRIBECA WX 2007 Manual page 192

asieps_tobira.book 117 ページ ２０１２年２月１０日 金曜日 午後３時２６分
Step
1 CHECK POOR CONTACT OF CONNEC-
TORS.
Check for poor contact of the connectors
between the airbag control module and the seat
belt pretensioner LH.
2 CHECK SEAT BELT PRETENSIONER.
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) Connect the connector (1N) in the test har-
ness N to the connector (AB21).
4) Connect the airbag resistor to the connector
(2N) of test harness N.
5) Connect the battery ground terminal and
turn the ignition switch to ON.
3 CHECK AIRBAG REAR HARNESS LH (PRE-
TENSIONER HARNESS LH).
1) Turn the ignition switch to OFF, disconnect
the battery ground cable, and wait more than 20
seconds.
2) Disconnect the airbag resistor from test har-
ness.
3) Disconnect the connector (AB19) from side
airbag module (LH).
4) Disconnect the connector (AB31) from cur-
tain airbag module (LH).
5) Disconnect the connectors (AB17) and
(AB18) from airbag 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. 11 (+) — Chassis ground (–):
(3U) No. 13 (+) — 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)-117
AIRBAG SYSTEM (DIAGNOSTICS)
Check Yes
Replace the airbag
rear harness LH
along with the body
harness.
Replace the seat
belt pretensioner
(LH). <Ref. to SB-
10, Front Seat
Belt.>
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.