Subaru B9 TRIBECA WX 2007 Manual page 110

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Step
1 CHECK IGNITION SWITCH.
2 CHECK BATTERY.
1) Turn the ignition switch to OFF.
2) Measure the battery voltage.
3 CHECK BATTERY TERMINAL.
4 CHECK SUBARU SELECT MONITOR COM-
MUNICATION.
1) Turn the ignition switch to ON.
2) Using the Subaru Select Monitor, check
whether communication to other system can be
executed normally.
5 CHECK AIRBAG CONTROL MODULE CON-
NECTOR.
1) Turn the ignition switch to OFF, disconnect
the battery ground cable, and wait more than 20
seconds.
2) Check the connector of the airbag control
module.
6 CHECK SUBARU SELECT MONITOR COM-
MUNICATION.
1) Turn the ignition switch to OFF.
2) Disconnect the airbag control module con-
nector.
3) Turn the ignition switch to ON.
4) Check whether communication to other sys-
tems can be executed normally.
7 CHECK HARNESS CONNECTOR BETWEEN
CONTROL MODULE AND DATA LINK CON-
NECTOR IN EACH SYSTEM.
1) Turn the ignition switch to OFF.
2) Disconnect the airbag control module,
VDCCM&H/U, ECM and TCM.
3) Measure the resistance between data link
connector and chassis ground.
Connector & terminal
(B402) No. 10 — Chassis ground:
8 CHECK THE OUTPUT SIGNAL TO THE AIR-
BAG CONTROL MODULE.
1) Turn the ignition switch to ON in the status of
step 7.
2) Measure the voltage between data link con-
nector and chassis ground.
Connector & terminal
(B402) No. 10 (+) — Chassis ground (–):
Subaru Select Monitor
Check
Is the ignition switch ON?
Is the voltage 11 V or more?
Is there poor contact at battery
terminal?
Are the system name and
model year displayed on Sub-
aru Select Monitor?
Is the connector of the airbag
control module securely con-
nected?
Are the system name and
model year displayed on Sub-
aru Select Monitor?
Is the resistance more than 1
MΩ?
Is the voltage less than 1 V?
AB(diag)-35
AIRBAG SYSTEM (DIAGNOSTICS)
Yes No
Go to step 2. Turn the ignition
switch to ON, and
select the airbag
mode using the
Subaru Select
Monitor.
Go to step 3. Charge or replace
the battery.
Repair or tighten Go to step 4.
the battery termi-
nal.
Go to step 9. Go to step 5.
Go to step 6. Connect the con-
nector of the airbag
control module.
Replace the airbag Go to step 7.
control module.
<Ref. to AB-19,
Airbag Control
Module.>
Go to step 8.
Repair the harness
and connector
between control
module and data
link connector in
each system.
(Replace the har-
ness without
repairing the air-
bag harness.)
Go to step 9.
Repair the harness
and connector
between control
module and data
link connector in
each system.
(Replace the har-
ness without
repairing the air-
bag harness.)