Subaru Legacy 2003 Service Manual page 3642

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 the connector (AB21) from the
seat belt pretensioner (LH). <Ref. to AB-
17, REMOVAL, Airbag Control Module.>
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 the air bag warning light operate
properly?
2 CHECK SIDE AIRBAG HARNESS (LH).
1) Turn 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,
REMOVAL, Airbag Control Module.>
4) Connect connector (1I) in test harness I2 to
connector (AB17).
5) Measure the resistance between connector
(3I) in test harness I2 and connector (3F) in
test harness F.
Connector & terminal
(3I) No. 10 — (3F) No. 3:
(3I) No. 12 — (3F) No. 4:
Is the measured value less than the speci-
fied value?
3 CHECK SIDE AIRBAG HARNESS (LH).
Measure the resistance of the connector (3F)
in test harness F.
Connector & terminal
(3F) No. 3 — No. 4:
Does the measured value exceed the specified
value?
4 CHECK SIDE AIRBAG HARNESS (LH).
Measure the resistance between connector
(3F) in test harness F and the chassis ground.
Connector & terminal
(3F) No. 3 — Chassis ground:
(3F) No. 4 — Chassis ground:
Does the measured value exceed the specified
value?
Value
Operates properly.
10 Ω
1 MΩ
1 MΩ
AB-59
AIRBAG SYSTEM (DIAGNOSTICS)
Yes
Replace front seat Go to step 2.
with side airbag
module (LH).
<Ref. to SB-7,
Front Seat Belt.>
Go to step 3. Replace side air-
bag harness.
<Ref. to AB-16,
Side Airbag Har-
ness.>
Go to step 4. Replace side air-
bag harness.
<Ref. to AB-16,
Side Airbag Har-
ness.>
Replace the airbag Replace side air-
control module. bag harness.
<Ref. to AB-17, <Ref. to AB-16,
Airbag Control Side Airbag Har-
Module.> ness.>
No