Subaru Legacy 2005 Service Manual page 4212

Diagnostic Procedure with Diagnostic Trouble Code (DTC)
LAN SYSTEM (DIAGNOSTICS)
Step
1 CHECK HARNESS.
1) Disconnect the body integrated module
connector and keyless entry control module
connector.
2) Measure the resistance between body inte-
grated module connector and keyless entry
control module connector.
Connector & terminal
(i84) No. 9 — (i96) No. 3:
2 CHECK HARNESS.
Measure the resistance between body inte-
grated module connector and chassis ground.
Connector & terminal
(i84) No. 9 — Chassis ground:
3 CHECK HARNESS.
1) Turn the ignition switch to ON.
2) Measure the voltage between body inte-
grated module connector and chassis ground.
Connector & terminal
(i84) No. 9 (+) — Chassis ground (
4 OPERATION CHECK.
Check the door lock operation when the doors
LOCK/UNLOCK using manual LOCK switch.
5 OPERATION CHECK.
1) Disconnect the key warning switch connec-
tor (B350).
2) Close all the doors, and then perform the
LOCK/UNLOCK operation on keyless entry
operation.
Check
Is the resistance less than 10
Ω?
Is the resistance less than 1
MΩ?
Is the voltage more than 6 V?
−
):
Does it operate on switch oper-
ation?
Does it operate?
LAN(diag)-82
Yes
Go to step 2. Repair or replace
the open circuit of
harness.
Repair or replace Go to step 3.
the short circuit of
harness.
Repair or replace Go to step 4.
the short circuit of
harness.
Go to step 5. Replace the body
integrated mod-
ule. <Ref. to SL-
44, Body Inte-
grated Module.>
Check key warning Replace the key-
switch. less entry control
module. <Ref. to
SL-43, Keyless
Entry Control
Unit.>
No