Subaru 2003 LEGACY Quick Reference Index page 56

DIAGNOSTIC CHART WITH DIAGNOSTIC TROUBLE CODE (DTC)
AIRBAG SYSTEM (DIAGNOSTICS)
5 CHECK AIRBAG MAIN HARNESS.
1) Remove the instrument panel. <Ref. to EI-
35, Instrument Panel Assembly.>
2) Disconnect connector (AB11) from (AB12),
and connect connector (2F) in test harness
F to (AB11).
3) Measure the resistance between connector
(3I) in test harness I2 and connector (3F) in
test harness F.
Connector & terminal
(3I) No. 3 — (3F) No. 6:
(3I) No. 1 — (3F) No. 5:
Is the measured value less than the speci-
fied value?
6 CHECK AIRBAG MAIN HARNESS.
Measure the resistance between connector
(3I) in the test harness I2 and the chassis
ground.
Connector & terminal
(3I) No. 3 — Chassis ground:
(3I) No. 1 — Chassis ground:
Does the measured value exceed the specified
value?
7 CHECK FRONT SUB-SENSOR HARNESS
(LH).
1) Connect connector (1F) in test harness F to
connector (AB12).
2) Measure the resistance between connector
(3H) in test harness H and connector (3F)
in test harness F.
Connector & terminal
(3F) No. 3 — (3H) No. 5:
(3F) No. 4 — (3H) No. 6:
Is the measured value less than the speci-
fied value?
8 CHECK FRONT SUB-SENSOR 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?
9 CHECK FRONT SUB-SENSOR (LH).
1) Connect connector (2H) in test harness H
to front sub-sensor (LH).
2) Measure the resistance of the connector
(3H) in test harness H.
Connector & terminal
(3H) No. 3 — No. 4:
Is the measured value within the specified
range?
Step Value
10 Ω
1 MΩ
10 Ω
1 MΩ
750 Ω — 1 KΩ
AB-54
Yes
Go to step 6. Replace the airbag
main harness.
<Ref. to AB-15,
Main Harness.>
Go to step 7. Replace the airbag
main harness.
<Ref. to AB-15,
Main Harness.>
Go to step 8. Replace the front
sub-sensor har-
ness (LH). <Ref. to
AB-15, Main Har-
ness.>
Go to step 9. Replace the front
sub-sensor har-
ness (LH). <Ref. to
AB-15, Main Har-
ness.>
Go to step 10. Replace the front
sub-sensor (LH).
<Ref. to AB-20,
Front Sub Sen-
sor.>
No