Diagnosis Procedure
- CHECK ENCODER SIGNAL
- Turn ignition switch ON.
- Check signal between power window and door lock/unlock switch RH harness connector and ground with oscilloscope.
Signal name
(+)
(-)
Signal
(Reference value)
Power window and door lock/unlock switch RH
Connector
Terminal
Encoder signal 1
D105
9
Ground
Refer to following signals
Encoder signal 2
10
Is the inspection result normal?
YES
Replace power window and door lock/unlock switch RH. Refer to Removal and Installation .
NO
GO TO 2 .
- CHECK ENCODER SIGNAL CIRCUIT
- Turn ignition switch OFF.
- Disconnect power window and door lock/unlock switch RH connector and front power window motor RH connector.
- Check continuity between power window and door lock/unlock switch RH harness connector and front power window motor RH harness connector.
Power window and door lock/unlock switch RH
Front power window motor RH
Continuity
Connector
Terminal
Connector
Terminal
D105
9
D104
3
Yes
10
5
- Check continuity between power window and door lock/unlock switch RH harness connector and ground.
Power window and door lock/unlock switch RH
Ground
Continuity
Connector
Terminal
D105
9
No
10
Is the inspection result normal?
YES
GO TO 3 .
NO
Repair or replace harness.
- CHECK ENCODER POWER SUPPLY
- Connect power window and door lock/unlock switch RH connector.
- Turn ignition switch ON.
- Check voltage between power window and door lock/unlock switch RH harness connector and ground.
(+)
(-)
Voltage
(Approx.)
Power window and door lock/unlock switch RH
Connector
Terminal
D104
4
Ground
Battery voltage
Is the inspection result normal?
YES
GO TO 5 .
NO
GO TO 4 .
- CHECK ENCODER POWER SUPPLY CIRCUIT
- Turn ignition switch OFF.
- Disconnect power window and door lock/unlock switch RH connector.
- Check continuity between power window and door lock/unlock switch RH harness connector and power window and door lock/unlock motor RH harness connector.
Power window and door lock/unlock switch RH
Front power window motor RH
Continuity
Connector
Terminal
Connector
Terminal
D105
5
D104
4
Yes
- Check continuity between power window and door lock/unlock switch RH harness connector and ground.
Power window and door lock/unlock switch RH
Ground
Continuity
Connector
Terminal
D105
5
No
Is the inspection result normal?
YES
Replace power window and door lock/unlock switch RH. Refer to Removal and Installation .
NO
Repair or replace harness.
- CHECK GROUND CIRCUIT 1
- Turn ignition switch OFF.
- Check continuity between front power window motor RH harness connector and ground.
Front power window motor RH
Ground
Continuity
Connector
Terminal
D104
6
Yes
Is the inspection result normal?
YES
Replace front power window motor RH. Refer to Removal and Installation .
NO
GO TO 6 .
- CHECK GROUND CIRCUIT 2
- Disconnect power window and door lock/unlock switch RH connector.
- Check continuity between power window and door lock/unlock switch RH harness connector and front power window motor RH harness connector.
Power window and door lock/unlock switch RH
Front power window motor RH
Continuity
Connector
Terminal
Connector
Terminal
D105
4
D104
6
Yes
- Check continuity between power window and door lock/unlock switch RH harness connector and ground.
Power window and door lock/unlock switch RH
Ground
Continuity
Connector
Terminal
D105
4
No
Is the inspection result normal?
YES
Replace power window and door lock/unlock switch RH. Refer to Removal and Installation .
NO
Repair or replace harness.