Diagnosis Procedure
- CHECK ENCODER SIGNAL
- Turn ignition switch ON.
- Check signal between power window sub-switch harness connector and ground with oscilloscope.
(+)
(-)
Signal
(Reference value)
Power window sub-switch
Connector
Terminal
D21
12
Ground
Refer to following signal
15
Is the inspection result normal?
YES
Replace power window sub-switch. Refer to POWER WINDOW SUB-SWITCH : Removal & Installation .
NO
GO TO 2.
- CHECK ENCODER SIGNAL CIRCUIT
- Turn ignition switch OFF.
- Disconnect power window sub-switch connector and power window motor (passenger side) connector.
- Check continuity between power window sub-switch harness connector and power window motor (passenger side) harness connector.
Power window sub-switch
Power window motor (passenger side)
Continuity
Connector
Terminal
Connector
Terminal
D21
12
D25
2
Existed
15
5
- Check continuity between power window sub-switch harness connector and ground.
Power window sub- switch
Ground
Continuity
Connector
Terminal
D21
12
Not existed
15
Is the inspection result normal?
YES
GO TO 3.
NO
Repair or replace harness.
- CHECK ENCODER POWER SUPPLY CIRCUIT 1
- Connect power window sub-switch connector.
- Turn ignition switch ON.
- Check voltage between power window motor (passenger side) harness connector and ground.
(+)
(-)
Voltage (V)
Power window motor (passenger side)
Connector
Terminal
D25
4
Ground
9 - 16
Is the inspection result normal?
YES
GO TO 5.
NO
GO TO 4.
- CHECK ENCODER POWER SUPPLY CIRCUIT 2
- Turn ignition switch OFF.
- Disconnect power window sub-switch connector.
- Check continuity between power window sub-switch harness connector and power window motor (passenger side) harness connector.
Power window sub-switch
Power window motor (passenger side)
Continuity
Connector
Terminal
Connector
Terminal
D21
4
D25
4
Existed
- Check continuity between power window sub-switch harness connector and ground.
Power window sub-switch
(-)
Continuity
Connector
Terminal
D21
4
Ground
Not existed
Is the inspection result normal?
YES
Replace power window sub-switch. Refer to POWER WINDOW SUB-SWITCH : Removal & Installation .
NO
Repair or replace harness.
- CHECK GROUND CIRCUIT 1
- Turn ignition switch OFF.
- Disconnect power window sub-switch connector.
- Check continuity between power window sub-switch harness connector and power window motor (passenger side) harness connector.
Power window sub-switch
Power window motor (passenger side)
Continuity
Connector
Terminal
Connector
Terminal
D21
3
D25
1
Existed
Is the inspection result normal?
YES
GO TO 6.
NO
Repair or replace harness.
- CHECK GROUND CIRCUIT 2
- Connect power window sub-switch connector.
- Check continuity between power window sub-switch connector and ground.
Power window sub-switch
(-)
Continuity
Connector
Terminal
D21
3
Ground
Existed
Is the inspection result normal?
YES
Replace power window motor (passenger side). Refer to FRONT DOOR MODULE ASSEMBLY : Removal & Installation .
NO
Replace power window sub-switch. Refer to POWER WINDOW SUB-SWITCH : Removal & Installation .