Subaru impreza 2004 Quick Reference Manual page 21

Step
4 CHECK DOOR SWITCH.
Measure the resistance between door switch
terminals.
Terminal
Door switch No. 1 — No. 3:
Rear gate latch switch No. 1 — No. 2:
7. CHECK KEY WARNING SWITCH
Step
1 CHECK FUSE.
Remove and visually check the fuse No. 6 (in
the main fuse box).
2 CHECK KEY WARNING SWITCH CIRCUIT.
1)Disconnect the keyless entry control module
harness connector.
2)Insert the key into ignition switch. (LOCK
position)
3)Measure the voltage between harness con-
nector terminal and chassis ground.
Connector & terminal
(B176) No. 1 (+) — Chassis ground (–):
3 CHECK KEY WARNING SWITCH CIRCUIT.
1)Remove the key from ignition switch.
2)Measure the voltage between harness con-
nector terminal and chassis ground.
Connector & terminal
(B176) No. 1 (+) — Chassis ground (–):
4 CHECK KEY WARNING SWITCH.
1)Disconnect the key warning switch harness
connector.
2)Insert the key into ignition switch. (LOCK
position)
3)Measure the resistance between key warn-
ing switch terminals.
Terminal
No. 1 — No. 2:
Keyless Entry System
Check
Is the resistance less than 1 Ω
when door switch is released?
Check
Is the fuse blown out?
Is the voltage more than 10 V? Go to step 3.
Is the voltage 0 V?
Is the resistance less than 1
Ω?
SL-19
SECURITY AND LOCKS
Yes
Check the followng: Replace the door
• Without double
switch.
lock: Check the
harness for open
circuits or shorts
between keyless
entry control mod-
ule and door
switch.
• With double
lock: Check the
harness for open
circuits or short
between keyless
entry control mod-
ule and door
switch, between
double lock mod-
ule and door
switch, and
between check
connector and
door switch.
Yes
Replace the fuse Go to step 2.
with a new one.
Go to step 4.
The key warning Go to step 4.
switch is OK.
Go to step 5. Replace the key
warning switch.
No
No