Subaru B9 TRIBECA WX 2007, Manual

Page: 110 / 861

AB(diag)-35
Subaru Select Monitor
AIRBAG SYSTEM (DIAGNOSTICS)
Step Check Yes No
1 CHECK IGNITION SWITCH. Is the ignition switch ON? Go to step 2 . Turn the ignition
switch to ON, and
select the airbag
mode using the
Subaru Select
Monitor.
2 CHECK BATTERY.
1) Turn the ignition switch to OFF.
2) Measure the battery voltage.
Is the voltage 11 V or more? Go to step 3 . Charge or replace
the battery.
3 CHECK BATTERY TERMINAL.
Is there poor contact at battery
terminal? Repair or tighten
the battery termi-
nal. Go to step
4
.
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.
Are the system name and
model year displayed on Sub-
aru Select Monitor? Go to step 9 . Go to step 5 .
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.
Is the connector of the airbag
control module securely con-
nected? Go to step 6 . Connect the con-
nector 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.
Are the system name and
model year displayed on Sub-
aru Select Monitor? Replace the airbag
control module.
<Ref. to AB-19,
Airbag Control
Module.> Go to step 7 .
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:
Is the resistance more than 1
M
Ω
?
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.)
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 (–):
Is the voltage less than 1 V? 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.)
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