Subaru Impreza 2002 Service Manual page 3320

Step
1 CHECK DRIVER'S AIRBAG MODULE.
1)Turn the ignition switch to OFF, disconnect
the battery ground cable, and wait more than
20 seconds.
2)Remove the driver's airbag module. <Ref. to
AB-12, Driver's Airbag Module.>
3)Connect the connector (1F) in test harness F
to connector (AB7).
4)Connect the airbag resistor to connector (3F)
in test harness F.
5)Connect the battery ground cable and turn
the ignition switch to ON.
2 CHECK ROLL CONNECTOR.
1)Turn the ignition switch to OFF, disconnect
the battery ground cable, and wait more than
20 second.
2)Disconnect the test harness F from the con-
nector (AB7).
3)Remove the lower cover panel, disconnect
the connector (AB3) from (AB8) and connect
the connector (1F) in test harness F to connec-
tor (AB8).
4)Connect the airbag resistor to connector (3F)
in test harness F.
5)Connect the battery ground cable and turn
the ignition switch to ON.
3 CHECK AIRBAG MAIN HARNESS.
1)Turn the ignition switch to OFF, disconnect
the ground cable, and wait more than 20 sec-
onds.
2)Disconnect the airbag resistor from the con-
nector (3F) in test harness F.
3)Remove the glove box, <Ref. to AB-13, Pas-
senger's Airbag Module.> and disconnect con-
nectors (AB10) and (AB9).
4)Disconnect the connector (AB6) from the air-
bag control module, and connect the connector
(1I) in test harness I or I2. <Ref. to AB-15, Air-
bag Control Module.>
5)Measure the resistance between connector
(2I) in test harness I or I2 and the connector
(3F) in test harness F.
Connector & terminal
(2I) No. 1 — (3F) No. 4:
(2I) No. 4 — (3F) No. 3:
4 CHECK AIRBAG MAIN HARNESS.
Measure the resistance of the connector (2I) in
test harness I or I2.
Connector & terminal
(2I) No. 1 — No. 4:
(2I) No. 4 — Chassis ground:
(2I) No. 1 — Chassis ground:
DIAGNOSTIC CHART WITH TROUBLE CODE
Check
Does the airbag warning light
operate properly?
Does the airbag warning light
operate properly?
Is the resistance less than 10
Ω?
Is the resistance more than 1
MΩ?
AB-41
AIRBAG SYSTEM (DIAGNOSTICS)
Yes
Replace the Go to step 2.
driver's airbag
module. <Ref. to
AB-12, Driver's
Airbag Module.>
Replace the roll Go to step 3.
connector. <Ref.
to AB-17, Roll
Connector.>
Go to step 4. Replace the body
harness with air-
bag main harness.
Replace the airbag Replace the body
control module. harness with air-
<Ref. to AB-15, bag main harness.
Airbag Control
Module.>
No