Subaru Legacy 2002 Service Manual page 3281

DIAGNOSTIC CHART WITH DIAGNOSTIC TROUBLE CODE (DTC)
Airbag System (Diagnostics)
No.
6 CHECK AIRBAG MAIN HARNESS
Measure the resistance between connector
(3I) in test harness I or I2 and the chassis
ground.
Connector & terminal
(3I) No. 2 — Chassis ground:
(3I) No. 4 — Chassis ground:
7 CHECK FRONT SUB-SENSOR HARNESS
(RH).
1) Connect connector (1F) in test harness F
to the connector (AB15).
2) Measure the resistance between connector
(3H) in test harness H and connector (3F) in
the test harness F.
Connector & terminal
(3F) No. 3 — (3H) No. 5:
(3F) No. 4 — (3H) No. 6:
8 CHECK FRONT SUB-SENSOR HARNESS
(RH).
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:
9 CHECK FRONT SUB-SENSOR (RH).
1) Connect connector (2H) in test harness H
to front sub-sensor (RH).
2) Measure the resistance of the connector
(3H) in test harness H.
Connector & terminal
(3H) No. 3 — No. 4:
10 CHECK FRONT SUB-SENSOR (RH).
Measure the resistance between connector
(3H) in test harness H and the chassis
ground.
Connector & terminal
(3H) No. 3 — Chassis ground:
(3H) No. 4 — Chassis ground:
Step
Is the resistance more than
1 MΩ?
Is the resistance less than
10 Ω?
Is the resistance more than
1 MΩ?
Is the resistance between
750Ω and 1 KΩ?
Is the resistance more than
1 MΩ?
AB-52
Check Yes
Go to step 7.
Go to step 8.
Go to step 9.
Go to step 10.
Finish the diagno-
sis.
No
Replace airbag
main harness.
<Ref. to AB-15,
Main Harness.>
Replace the front
sub-sensor har-
ness (RH) <Ref.
to AB-21, Front
Sub Sensor Har-
ness.>
Replace the front
sub-sensor har-
ness (RH) <Ref.
to AB-21, Front
Sub Sensor Har-
ness.>
Replace the front
sub-sensor (RH)
<Ref. to AB-20,
Front Sub Sen-
sor.>
Replace the front
sub-sensor (RH)
<Ref. to AB-20,
Front Sub Sen-
sor.>