Subaru B9 TRIBECA WX 2007, Manual

Page: 181 / 861

AB(diag)-106
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, curtain air-
bag module LH and the curtain airbag sensor
LH.
Is there poor contact? Replace the airbag
rear harness along
with body harness. Go to step 2 .
2 CHECK AIRBAG REAR HARNESS LH (CUR-
TAIN AIRBAG SENSOR 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 (AB19) from side
airbag module (LH).
4) Disconnect the connector (AB31) from cur-
tain airbag module (LH).
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) Disconnect the connector (AB32) from cur-
tain airbag sensor (LH), and connect the con-
nector (2V) in test harness V to connector
(AB32).
8) Measure the resistance between connector
(5U) in the test harness U and connector (3V) in
the test harness V.
Connector & terminal
(5U) No. 11 — (3V) No. 4:
(5U) No. 9 — (3V) No. 5:
(5U) No. 10 — (3V) No. 1:
(5U) No. 12 — (3V) No. 2:
Is the resistance less than 10
Ω
?
Go to step 3 . Replace the airbag
rear harness LH
along with the body
harness.
3 CHECK AIRBAG REAR HARNESS LH (CUR-
TAIN AIRBAG SENSOR HARNESS LH).
Measure the resistance between connector
(5U) in the test harness U and chassis ground.
Connector & terminal
(5U) No. 11 — Chassis ground:
(5U) No. 9 — Chassis ground:
(5U) No. 10 — Chassis ground:
(5U) No. 12 — Chassis ground:
Is the resistance more than 1
M
Ω ?
Go to step
4
. Replace the airbag
rear harness LH
along with the body
harness.
4 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 cur-
tain airbag sensor
(LH). <Ref. to AB-
21, Curtain Airbag
Sensor.> Replace
the airbag control
module if not oper-
ating normally
even after replac-
ing the sensor.
<Ref. to AB-19,
Airbag Control
Module.> Go to step 5 .
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