Subaru Legacy 2004 Service Manual page 3829

2. CHECK FUSE
Step
1 CHECK FUSE.
Remove and visually check the fuse No. 3 (in
the fuse and relay box) and No. 7 (in the fuse
and relay box).
3. CHECK POWER SUPPLY AND GROUND CIRCUIT
Step
1 CHECK POWER SUPPLY.
1) Disconnect the harness connector of body
integrated unit.
2) Measure the voltage between harness con-
nector terminal and chassis ground.
Connector & terminal
(i84) No. 34 (+) — Chassis ground (
(B281) No. 2 (+) — Chassis ground (
2 CHECK GROUND CIRCUIT.
Measure the resistance between harness con-
nector terminal and chassis ground.
Connector & terminal
(B280) No. 22 — Chassis ground:
(B281) No. 8, 9, 22 — Chassis ground:
4. CHECK DOOR LOCK SWITCH
Step
1 CHECK DOOR LOCK SWITCH.
Check the input from door lock switch to body
integrated unit using Subaru Select Monitor.
1) Connect the Subaru Select Monitor to data
link connector.
2) Turn the ignition switch to ON.
3) Select {body integrated unit} from main
menu.
4) Select {Current Data Display & Save}.
5) Check the input to body integrated unit by
operating the door lock switch.
2 CHECK DOOR LOCK SWITCH CIRCUIT.
1) Disconnect the body integrated unit har-
ness connector.
2) Measure the resistance between the har-
ness connector terminal and chassis ground
when moving the door lock switch to LOCK.
Connector & terminal
(i84) No. 15 — Chassis ground:
Door Lock Control System
Is the fuse blown out?
Is the voltage more than 10 V? Go to step 2.
"
):
"
):
Is the resistance less than 10
#?
Is the normal input signal dis-
played when the door lock
switch is moved to LOCK/
UNLOCK?
Is the resistance less than 10
#?
SL-11
Check Yes
Replace the fuse
with a new one.
Check Yes
The power supply
and ground circuit
are OK.
Check Yes
The door lock
switch is OK.
Go to step 3.
SECURITY AND LOCKS
No
Check the power
supply and ground
circuit. <Ref. to
SL-11, CHECK
POWER SUPPLY
AND GROUND
CIRCUIT,
INSPECTION,
Door Lock Control
System.>
No
Check the harness
for open or short
circuit between
body integrated
unit and fuse.
Repair the har-
ness.
No
Go to step 2.
Go to step 4.