Subaru Legacy 2003 Service Manual page 3618

DIAGNOSTIC CHART WITH DIAGNOSTIC TROUBLE CODE (DTC)
Step
1 CHECK PASSENGER'S AIRBAG MODULE.
1) Turn the ignition switch OFF, disconnect
the battery ground cable, and wait more
than 20 seconds.
2) Pull out the two stopper pins and lower the
glove box.
3) Disconnect the connector (AB10) from
(AB9).
4) Connect the connector (1K) in test harness
K to connector (AB9).
5) Connect two airbag resistors to connectors
(3K) and (4K) in test harness K.
6) Connect the battery ground cable and turn
the ignition switch ON.
Does the airbag warning light operate prop-
erly?
2 CHECK AIRBAG MAIN HARNESS.
1) Turn the ignition switch OFF, disconnect
the battery ground cable, and wait more
than 20 seconds.
2) Disconnect two airbag resistors from the
connectors (3K) and (4K) in test harness K.
3) Remove lower cover and disconnect the
connector (AB3) from (AB8).
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
(3K) in test harness K.
Connector & terminal
(2I) No. 2 — (3K) No. 4:
(2I) No. 5 — (3K) No. 3:
Is the measured value less than the speci-
fied value?
3 CHECK AIRBAG MAIN HARNESS.
Measure the resistance of the connector (2I) in
test harness I2.
Connector & terminal
(2I) No. 2 — No. 5:
(2I) No. 2 — Chassis ground:
(2I) No. 5 — Chassis ground:
Does the measured value exceed the specified
value?
Value
Operates properly.
10 Ω
1 MΩ
AB-35
AIRBAG SYSTEM (DIAGNOSTICS)
Yes
Replace the pas- Go to step 2.
senger airbag
module. <Ref. to
AB-13, Passen-
ger's Airbag Mod-
ule.>
Go to step 3. Replace airbag
main harness.
<Ref. to AB-15,
Main Harness.>
Replace airbag Replace airbag
control module. main harness.
<Ref. to AB-17, <Ref. to AB-15,
Airbag Control Main Harness.>
Module.>
No