Subaru 2003 LEGACY Quick Reference Index page 33

DIAGNOSTIC CHART WITH DIAGNOSTIC TROUBLE CODE (DTC)
Step
1 CHECK DRIVER'S AIRBAG MODULE.
1) Turn the ignition switch OFF, disconnect
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 airbag resistor to connector (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 ROLL CONNECTOR.
1) Turn the ignition switch OFF, disconnect
the battery ground cable, and wait more
than 20 second.
2) Disconnect the test harness from the con-
nector (AB7).
3) Remove the lower cover panel, disconnect
the connector (AB3) from (AB8) and con-
nect the connector (1F) in test harness F to
connector (AB8).
4) Connect the airbag resistor to connector
(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?
3 CHECK AIRBAG MAIN HARNESS.
1) Turn the ignition switch OFF, disconnect
the ground cable, and wait more than 20
seconds.
2) Disconnect the airbag resistor from the
connector (3F) in test harness F.
3) Remove the glove box, <Ref. to AB-13,
Passenger's Airbag Module.>, REMOVAL,
Passenger's Airbag Module.> and discon-
nect connectors (AB10) and (AB9).
4) Disconnect the connector (AB6) from the
airbag control module, and connect the
connector (1I) in test harness I2. <Ref. to
AB-17, Airbag Control Module.>
5) Measure the resistance between connector
(2I) in test harness I2 and the connector
(3F) in test harness F.
Connector & terminal
(2I) No. 1 — (3F) No. 4:
(2I) No. 4 — (3F) No. 3:
Is the measured value less than the speci-
fied value?
Value
Operates properly.
Operates properly.
10 Ω
AB-31
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-19, Roll
Connector.>
Go to step 4. Replace airbag
main harness.
<Ref. to AB-15,
Main Harness.>
No