Subaru Legacy 2003 Service Manual page 3656

DIAGNOSTIC CHART WITH DIAGNOSTIC TROUBLE CODE (DTC)
Step
1 CHECK SEAT BELT PRETENSIONER.
1) Turn the ignition switch OFF, disconnect
the battery ground cable, and wait more
than 20 seconds.
2) Disconnect the connector (AB21) from the
seatbelt pretensioner (LH). <Ref. to SB-7,
Front Seat Belt.>
3) Connect the connector (1F) in test harness
F to (AB21).
4) Connect the airbag resistor to the connec-
tor (3F) in test harness F.
5) Connect the battery ground cable and turn
the ignition switch ON.
Does the airbag 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 the airbag resistor from the test
harness.
3) Disconnect the connector (AB20) from
(AB19).
4) Disconnect the connectors (AB17) and
(AB18) from the airbag control module.
<Ref. to AB-17, Airbag Control Module.>
5) Connect the connector (1I) in test harness
I2 to the connector (AB17).
6) Measure the resistance between connector
(3I) in test harness I2 and the connector
(3F) in test harness F.
Connector & terminal
(3I) No. 11 — (3F) No. 4:
(3I) No. 13 — (3F) No. 3:
Is the measured value less than the speci-
fied value?
3 CHECK SIDE AIRBAG HARNESS (LH).
Measure the resistance of the connector (3I) in
test harness I2.
Connector & terminal
(3I) No. 11 — No. 13:
Does the measured value exceed the specified
value?
4 CHECK SIDE AIRBAG HARNESS (LH).
Measure the resistance between the connec-
tor (3I) in test harness I2 and the chassis
ground.
Connector & terminal
(3I) No. 11 — Chassis ground:
(3I) No. 13 — Chassis ground:
Does the measured value exceed the specified
value?
Value
Operates properly.
10 Ω
1 MΩ
1 MΩ
AB-73
AIRBAG SYSTEM (DIAGNOSTICS)
Yes
Replace seat belt Go to step 2.
pretensioner (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