Subaru LEGACY 2004 Service Manual page 761

Diagnostic Procedure with Diagnostic Trouble Code (DTC)
Step
1 CHECK HARNESS.
1) Disconnect the body integrated unit con-
nector (B280).
2) Measure the voltage between body inte-
grated unit connector and chassis ground.
Connector & terminal
(B280) No. 13 (+) — Chassis ground (
2 CHECK HARNESS.
1) Disconnect the body integrated unit con-
nector (B280).
2) Disconnect the rear fog light relay.
3) Measure the resistance between body inte-
grated unit connector and rear fog light relay
connector.
Connector & terminal
(B280) No. 13 — (B225) No. 27:
3 CHECK HARNESS.
1) Disconnect the body integrated unit con-
nector (B280).
2) Disconnect the rear fog light relay.
3) Measure the resistance between body inte-
grated unit connector and chassis ground.
Connector & terminal
(B280) No. 13 — Chassis ground:
Check
Is the voltage 10 — 13 V?
!
):
Is the resistance less than 1
"?
Is the resistance more than 1
M"?
LAN(diag)-45
LAN SYSTEM (DIAGNOSTICS)
Yes
Temporary poor Go to step 2.
contact.
Go to step 3. Repair the open or
short circuit of har-
ness.
Replace the body Repair or replace
integrated unit. the short circuit of
<Ref. to SL-46, harness.
Body Integrated
Unit.>
No