Subaru LEGACY 2004 Service Manual page 748

Diagnostic Procedure with Diagnostic Trouble Code (DTC)
LAN SYSTEM (DIAGNOSTICS)
Step
10 CHECK POWER SUPPLY CIRCUIT.
1) Turn the ignition switch to ON (engine
OFF).
2) Measure the ignition voltage between body
integrated unit connector and chassis ground.
Connector & terminal
(i84) No. 1 (+) — Chassis ground (
11 CHECK HARNESS CONNECTOR BETWEEN
BODY INTEGRATED UNIT AND CHASSIS
GROUND.
1) Turn the ignition switch to OFF.
2) Disconnect the connector from body inte-
grated unit.
3) Measure the harness resistance between
the body integrated unit and chassis ground.
Connector & terminal
(B280) No. 19 — Chassis ground:
12 CHECK POOR CONTACT IN CONNECTORS. Is there poor contact at control
CAUTION:
When replacing body integrated unit on the model with immobilizer system, refer to "REGISTRATION
MANUAL FOR IMMOBILIZER".
Check
Is the voltage more than 10 V? Go to step 11.
!
):
Is the resistance more than 1
M"?
unit ground and Subaru Select
Monitor?
LAN(diag)-32
Yes
Repair the open
circuit of harness
between the body
integrated unit and
battery.
Go to step 12. Repair the poor
contact of har-
ness between the
body integrated
unit and ground.
Replace the body Repair the poor
integrated unit. contact connector.
<Ref. to SL-46,
Body Integrated
Unit.>
No