Subaru B9 TRIBECA WX 2007 Manual page 178

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Step
1 CHECK POOR CONTACT OF CONNEC-
TORS.
Check for poor contact of the connectors
between the airbag control module, curtain air-
bag module RH and the curtain airbag sensor
RH.
2 CHECK AIRBAG REAR HARNESS RH (CUR-
TAIN AIRBAG SENSOR 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 (AB24) from side
airbag module (RH).
4) Disconnect the connector (AB33) from cur-
tain airbag module (RH).
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) Disconnect the connector (AB34) from cur-
tain airbag sensor (RH), and connect the con-
nector (2V) in test harness V to connector
(AB34).
8) Measure the resistance between connector
(5U) in the test harness U and connector (3V) in
the test harness V.
Connector & terminal
(5U) No. 14 — (3V) No. 4:
(5U) No. 16 — (3V) No. 5:
(5U) No. 15 — (3V) No. 1:
(5U) No. 13 — (3V) No. 2:
3 CHECK AIRBAG REAR HARNESS RH (CUR-
TAIN AIRBAG SENSOR HARNESS RH).
Measure the resistance between connector
(5U) in the test harness U and chassis ground.
Connector & terminal
(5U) No. 14 — Chassis ground:
(5U) No. 16 — Chassis ground:
(5U) No. 15 — Chassis ground:
(5U) 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.
Diagnostic Chart with Trouble Code
Is there poor contact?
Is the resistance less than 10
Ω?
Is the resistance more than 1
MΩ?
Is the same DTC displayed?
AB(diag)-103
AIRBAG SYSTEM (DIAGNOSTICS)
Check Yes
Replace the airbag
rear harness along
with body harness.
Go to step 3.
Go to step 4.
Replace the cur-
tain airbag sensor
(RH). <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.>
No
Go to step 2.
Replace the airbag
rear harness RH
along with body
harness.
Replace the airbag
rear harness RH
along with body
harness.
Go to step 5.