Subaru Forester 2004 - Page 406

SL-12
SECURITY AND LOCK
Door Lock Control System
5. CHECK DOOR LOCK ACTUATOR AND CIRCUIT
6. CHECK KEY CYLINDER LOCK SWITCH AND CIRCUIT
Step Check Yes No
1 CHECK OUTPUT SIGNAL.
Measure the voltage between the harness con-
nector terminal of keyless entry control module
or double lock module and chassis ground
when moving the door lock switch to LOCK.
Connector & terminal
Without double lock:
(B176) No. 18 (+) — Chassis ground ( − ):
With double lock:
(B324) No. 3 (+) — Chassis ground (
− ):
Is the voltage more than 10 V? Go to step 2. Replace the key-
less entry control
module or double
lock module.
2 CHECK OUTPUT SIGNAL.
Measure the voltage between the harness con-
nector terminal of keyless entry control module
or double lock module and chassis ground
when moving the door lock switch to UNLOCK.
Connector & terminal
Without double lock:
(B176) No. 17 (+) — Chassis ground (
− ):
With double lock:
(B324) No. 5 (+) — Chassis ground ( − ):
Is the voltage more than 10 V? Go to step 3. Replace the key-
less entry control
module or double
lock module.
3 CHECK DOOR LOCK ACTUATOR.
Check the door lock actuator.
Front door lock actuator: <Ref. to SL-25, Front
Door Lock Actuator.>
Rear door lock actuator: <Ref. to SL-29, Rear
Door Lock Actuator.>
Rear gate latch lock actuator: <Ref. to SL-32,
Rear Gate Latch Lock Actuator.>
Is the door lock actuator OK? Check the harness
for open circuits or
shorts between
the keyless entry
control module or
double lock mod-
ule and the door
lock actuator.
Replace the door
lock actuator.
Step Check Yes No
1 CHECK KEY CYLINDER LOCK SWITCH CIR-
CUIT.
1) Disconnect the double lock module har-
ness connector.
2) Measure the resistance between harness
connector terminal and chassis ground when
turning the key cylinder lock switch to lock
position.
Connector & terminal
(B325) No. 2 — Chassis ground:
Is the resistance less than 10
Ω?
Go to step 2. Go to step 3.
2 CHECK KEY CYLINDER LOCK SWITCH CIR-
CUIT.
Measure the resistance between harness con-
nector terminal and chassis ground when turn-
ing the key cylinder lock switch to unlock
position.
Connector & terminal
(B325) No. 3 — Chassis ground:
Is the resistance less than 10
Ω?
Key cylinder lock
switch is normal.
Go to step 3.