Subaru impreza 2004 Quick Reference Manual page 13

2. CHECK FUSE
Step
1 CHECK FUSE.
Remove and visually check the fuse No. 2 (in
the main fuse box) and No. 3 (in the fuse and
relay box).
3. CHECK POWER SUPPLY AND GROUND CIRCUIT
Step
1 CHECK POWER SUPPLY.
1)Disconnect the keyless entry control module
or double lock module harness connector.
2)Measure the voltage between the harness
connector terminal and chassis ground.
Connector & terminal
Without double lock:
(B176) No. 5, 16 (+) — Chassis ground (–):
With double lock:
(B324) No. 7, 8 (+) — Chassis ground (–):
2 CHECK GROUND CIRCUIT.
Measure the resistance between the harness
connector terminal and chassis ground.
Connector & terminal
Without double lock:
(B176) No. 6, 14 — Chassis ground:
With double lock:
(B324) No. 9 — 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
Ω?
SL-11
Check
Replace the fuse
with a new one.
Check
The power supply
and ground circuit
is OK.
SECURITY AND LOCKS
Yes No
Check the power
supply and ground
circuit. <Ref. to
SL-11, CHECK
POWER SUPPLY
AND GROUND
CIRCUIT,
INSPECTION,
Door Lock Control
System.>
Yes No
Check the harness
for open circuits or
shorts between
the keyless entry
control module or
double lock mod-
ule and the fuse.
Repair the har-
ness.