Subaru Legacy 2004 Service Manual page 3842

SECURITY AND LOCKS
8. CHECK KEY WARNING SWITCH
Step
1 CHECK FUSE.
Remove and visually check the fuse No. 14 (in
the main fuse box).
2 CHECK KEY WARNING SWITCH CIRCUIT.
1) Disconnect the harness connector of body
integrated unit.
2) Insert the key into ignition switch. (LOCK
position)
3) Measure the voltage between the harness
connector terminal and chassis ground.
Connector & terminal
(B281) No. 7 (+) — Chassis ground (
3 CHECK KEY WARNING SWITCH CIRCUIT.
1) Remove the key from ignition switch.
2) Measure the voltage between the harness
connector terminal and chassis ground.
Connector & terminal
(B281) No. 7 (+) — 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.
Connector & terminal
(B350) No. 3 — No. 4:
5 CHECK KEY WARNING SWITCH.
1) Remove the key from ignition switch.
2) Measure the resistance between key warn-
ing switch terminals.
Connector & terminal
(B350) No. 3 — No. 4:
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 BODY INTEGRATED UNIT.
1) Disconnect the body integrated unit har-
ness connector and room light harness con-
nector.
2) Measure the resistance between the body
integrated unit harness connector terminal and
room light harness connector terminal.
Connector & terminal
(B280) No. 3 — (R52) No. 2:
Keyless Entry System
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
#?
Is the resistance more than 1
M#?
Check
Does the room light illuminate? Go to step 2.
Is the resistance less than 10
#?
SL-24
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.
Replace the key
Check the follow-
warning switch.
ing:
• Harness for
open circuits and
shorts between
the key warning
switch and fuse
• Harness for
open or short
between the body
integrated unit and
key warning switch
Yes
Check the room
light circuit.
The room light Check the harness
operation circuit is for open or short
OK. between body inte-
grated unit and
room light.
No
No