Subaru Impreza 2002 Service Manual page 3554

Step
2 CHECK GROUND CIRCUIT.
Measure the resistance between harness con-
nector terminal and chassis ground.
Connector & terminal
(B176) No. 6, No. 14 — Chassis ground:
5. CHECK REGISTRATION CONNECTOR CIRCUIT
Step
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 ( − − − − ):
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 ( − − − − ):
6. CHECK DOOR SWITCH
Step
1 CHECK DOOR SWITCH CIRCUIT.
Measure the voltage between keyless entry
control module harness connector terminal
and chassis ground.
Connector & terminal
(B176) No. 3 (+) — Chassis ground (–):
2 CHECK DOOR SWITCH CIRCUIT.
Measure the voltage between keyless entry
control module harness connector terminal
and chassis ground.
Connector & terminal
(B176) No. 3 (+) — Chassis ground (–):
3 CHECK DOOR SWITCH.
1)Disconnect the door switch harness connec-
tor.
2)Measure the resistance between door switch
terminals.
Terminal
Front LH No. 1 — No. 3:
Front RH No. 1 — No. 3:
Rear LH No. 1 — No. 3:
Rear RH No. 1 — No. 3:
Rear gate No. 1 — No. 2:
KEYLESS ENTRY SYSTEM
Is the resistance less than 10
Ω?
Is the voltage more than 10 V? Go to step 2.
Is the voltage 0 V?
Is the voltage 0 V when each
door and rear gate is opened?
Is the voltage more than 10 V
when each door and rear gate
is closed?
Is the resistance more than 1
M Ω when door switch is
pushed?
SL-15
Check
The power supply
and ground circuit
are OK.
Check
Registration con-
nector circuit is
OK.
Check
Go to step 2.
The door switch is
OK.
Go to step 4.
SECURITY AND LOCKS
Yes No
Repair the har-
ness.
Yes No
Repair the har-
ness, and (or) con-
nector.
Repair the har-
ness, and (or) con-
nector.
Yes No
Go to step 3.
Go to step 3.
Replace the door
switch.