LAN(diag)-37
Diagnostic Procedure with Diagnostic Trouble Code (DTC)
LAN SYSTEM (DIAGNOSTICS)
Step
Check
Yes
No
1
CHECK DTC.
Read the DTC of body integrated unit using
Subaru Select Monitor. <Ref. to LAN(diag)-13,
READ DIAGNOSTIC TROUBLE CODE (DTC),
OPERATION, Subaru Select Monitor.>
Is B1101 current malfunction? Go to step
2.
Go to step
5.
2
CHECK DTC.
1) Turn the ignition switch to OFF.
2) Disconnect the connector from body inte-
grated unit and reconnect.
3) Wait approx. 2 minutes.
4) Turn the ignition switch to ON.
5) Read the DTC of body integrated unit using
Subaru Select Monitor.
Is B1101 current malfunction? Go to step
3.
Go to step
5.
3
CHECK FUSE.
1) Turn the ignition switch to OFF.
2) Check the fuse.
Is the fuse OK?
Go to step
4.
Replace the defec-
tive fuse.
4
CHECK HARNESS.
1) Disconnect the body integrated unit connec-
tor (B280).
2) Measure the voltage between body inte-
grated unit connector and chassis ground using
tester.
Connector & terminal
(B280) No. 6 (+) — Chassis ground (–):
Is the voltage 8.5 — 16.5 V?
Replace the body
integrated unit.
<Ref. to SL-48,
REMOVAL, Body
Integrated Unit.>
Repair or replace
the open or
shorted circuit
between body inte-
grated unit and
fuse.
5
CHECK CONNECTOR.
1) Turn the ignition switch to OFF.
2) Disconnect the body integrated unit connec-
tor (B280).
Is there poor contact of connec-
tor?
Repair or replace
the poor contact of
connector.
A temporary
change of voltage
occurred.