Subaru 2004 Forester, Service Manual

Page: 411 / 622

SL-17
SECURITY AND LOCK
Keyless Entry System
4. CHECK POWER SUPPLY AND GROUND CIRCUIT
5. CHECK REGISTRATION CONNECTOR CIRCUIT
Step Check Yes No
1 CHECK POWER SUPPLY.
1) Disconnect the keyless entry control mod-
ule harness connector.
2) Measure the voltage between harness con-
nector terminal and chassis ground.
Connector & terminal
(B176) No. 5, No. 16 (+) — Chassis
ground (
−
):
Is the voltage more than 10 V? Go to step 2. Check the harness
for open circuits or
shorts between
keyless entry con-
trol module and
fuse.
2 CHECK GROUND CIRCUIT.
Measure the resistance between harness con-
nector terminal and chassis ground.
Connector & terminal
(B176) No. 6, No. 14 — Chassis ground:
Is the resistance less than 10
Ω
?
The power supply
and ground circuit
are OK. Repair the har-
ness.
Step Check Yes No
1 REGISTRATION CONNECTOR INPUT VOLT-
AGE INSPECTION
1) Disconnect the registration connector.
2) Measure the voltage between keyless entry
control module harness connector and chassis
ground.
Connector & terminal
(B176) No. 2 (+) — Chassis ground (
−
):
Is the voltage more than 10 V? Go to step 2. Repair the har-
ness, and (or) con-
nector.
2 REGISTRATION CONNECTOR INPUT VOLT-
AGE INSPECTION
1) Connect the registration connector.
2) Measure the voltage between keyless entry
control module harness connector and chassis
ground.
Connector & terminal
(B176) No. 2 (+) — Chassis ground (
−
):
Is the voltage less than 0 V? Registration con-
nector circuit is
OK. Repair the har-
ness, and (or) con-
nector.