Subaru Legacy 2003 Service Manual page 3646

DIAGNOSTIC CHART WITH DIAGNOSTIC TROUBLE CODE (DTC)
Step
1 CHECK SIDE AIRBAG MODULE.
1) Turn the ignition switch OFF, disconnect
the battery ground cable, and wait more
than 20 seconds.
2) Disconnect connector (AB21) from the
seat belt pretensioner (LH). <Ref. to SE-7,
Front Seat.>
3) Disconnect connector (AB20) from (AB19),
and connect connector (1F) in test harness
F to (AB19).
4) Connect airbag resistor to connector (3F) in
test harness F.
5) Connect the battery ground cable and turn
the ignition switch ON.
Does air bag warning light operate prop-
erly?
2 CHECK SIDE AIRBAG HARNESS (LH).
1) Turn the ignition switch OFF, disconnect
the battery ground cable, and wait more
than 20 seconds.
2) Disconnect airbag resistor from the test
harness.
3) Disconnect the connector (AB17) from the
airbag control module. <Ref. to AB-17, Air-
bag Control Module.>
4) Connect connector (1I) in test harness I2 to
connector (AB17).
5) Connect the battery ground cable, and turn
the ignition switch ON.
6) Measure the voltage between connector
(3I) in test harness I2 and the chassis
ground.
Connector & terminal
(3I) No. 10 (+) — Chassis ground ( − − − − ):
(3I) No. 12 (+) — Chassis ground ( − − − − ):
Is the measured value less than the speci-
fied value?
Value
Operates properly.
1 V
AB-63
AIRBAG SYSTEM (DIAGNOSTICS)
Yes
Replace front seat Go to step 2.
with side airbag
module (LH).
<Ref. to SE-7,
Front Seat.>
Replace the air- Replace side air-
bag control mod- bag harness.
ule. <Ref. to AB- <Ref. to AB-16,
17, Airbag Control Side Airbag Har-
Module.> ness.>
No