Subaru Impreza 2003 Service Manual page 3118

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SECURITY AND LOCKS
8. CHECK HAZARD LIGHT OPERATION
Step
1
CHECK HAZARD LIGHT OPERATION.
Make sure the hazard light blinks when hazard
switch is turned to ON.
2
CHECK OUTPUT SIGNAL.
1)Remove the key from ignition switch.
2)Close all doors and rear gate.
3)Measure the voltage between keyless entry
control module harness connector terminal
and chassis ground when LOCK or OPEN but-
ton of transmitter is pressed.
Connector & terminal
(B176) No. 12, No. 13 (+) — Chassis
ground ( − − − − ):
9. CHECK ROOM LIGHT OPERATION
Step
1
CHECK ROOM LIGHT OPERATION.
Make sure the room light illuminates when the
room light switch is turned to ON.
2
CHECK HARNESS BETWEEN ROOM LIGHT
AND KEYLESS ENTRY CONTROL MODULE
(WITHOUT DOUBLE LOCK) OR DOUBLE
LOCK MODULE (WITH DOUBLE LOCK).
1)Disconnect the keyless entry control module
or double lock module harness connector and
room light harness connector.
2)Measure the resistance between keyless
entry control module or double lock module
harness connector terminal and room light har-
ness connector terminal.
Connector & terminal
Without double lock:
(B176) No. 11 — (R52) No. 2:
With double lock:
(B325) No. 1 — (R52) No. 2:
(B79) No. 13 — (R52) No. 2:
KEYLESS ENTRY SYSTEM
Does the hazard light blink?
Is the voltage more than 10 V? Check the harness
Does the room light illuminate? Go to step 2.
Is the resistance less than 10
Ω?
SL-20
Check
Go to step 2.
for open or short
between keyless
entry control mod-
ule and turn signal
lights.
Check
The room light
operation circuit is
OK.
Yes
No
Check the hazard
light circuit.
Replace the key-
less entry control
module.
Yes
No
Check the room
light circuit.
Check the follow-
ing:
• Without double
lock: Check the
harness for open
circuit or short
between keyless
entry control mod-
ule and room light.
• With double
lock: Check the
harness for open
circuit or short
between double
lock module and
room light, and
between check
connector and
room light.

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