Diagnosis Procedure
Regarding Wiring Diagram information, refer to WIRING DIAGRAM - WITH LEFT & RIGHT FRONT AUTO UP/DOWN .
- CHECK ENCODER SIGNAL
- Connect front power window motor RH.
- Turn ignition switch ON.
- Check signal between power window and door lock/unlock switch RH connector D129 and ground with oscilloscope.
Signal name Terminals Signal
(Reference value)(+) (-) Power window and door lock/unlock switch RH connector Terminal Encoder signal 1 D129 9 Ground Refer to following signal Encoder signal 2 10
Is the inspection result normal?
YES
Check intermittent incident. Refer to INTERMITTENT INCIDENT .
NO
GO TO STEP 2 .
- CHECK FRONT POWER WINDOW MOTOR RH POWER SUPPLY
- Turn ignition switch ON.
- Check voltage between front power window motor RH connector D105 and ground.
Terminal Voltage
(Approx.)(+) (-) Front power window motor RH connector Terminal D105 5 Ground 10
Is the inspection result normal?
YES
GO TO STEP 4.
NO
GO TO STEP 3 .
- CHECK HARNESS CONTINUITY 1
- Turn ignition switch OFF.
- Disconnect power window and door lock/unlock switch RH and front power window motor RH.
- Check continuity between power window and door lock/unlock switch RH connector D129 and front power window motor RH connector D105.
Power window and door lock/unlock switch RH connector Terminal Front power window motor RH connector Terminal Continuity D129 5 D105 5 Yes - Check continuity between power window and door lock/unlock switch RH connector D129 and ground.
Power window and door lock/unlock switch RH connector Terminal Ground Continuity D129 5 No
Is the inspection result normal?
YES
Replace power window and door lock/unlock switch RH. Refer to REMOVAL AND INSTALLATION . After that, refer to WORK PROCEDURE .
NO
Repair or replace the harness or connectors.
- CHECK GROUND CIRCUIT
- Turn ignition switch OFF.
- Disconnect front power window motor RH.
- Check continuity between front power window motor RH connector D105 and ground.
Front power window motor RH connector Terminal Ground Continuity D105 3 Yes
Is the inspection result normal?
YES
GO TO STEP 6 .
NO
GO TO STEP 5 .
- CHECK HARNESS CONTINUITY 2
- Disconnect power window and door lock/unlock switch RH.
- Check continuity between power window and door lock/unlock switch RH connector D129 and front power window motor RH connector D105.
Power window and door lock/unlock switch RH connector Terminal Front power window motor RH connector Terminal Continuity D129 4 D105 3 Yes
Is the inspection result normal?
YES
Replace power window and door lock/unlock switch RH. Refer to REMOVAL AND INSTALLATION . After that, refer to WORK PROCEDURE .
NO
Repair or replace the harness or connectors.
- CHECK HARNESS CONTINUITY 3
- Disconnect power window and door lock/unlock switch RH.
- Check continuity between power window and door lock/unlock switch RH connector D129 and front power window motor RH connector D105.
Power window and door lock/unlock switch RH connector Terminal Front power window motor RH connector Terminal Continuity D129 9 D105 6 Yes 10 4 - Check continuity between power window and door lock/unlock switch RH connector D129 and ground.
Power window and door lock/unlock switch RH connector Terminal Ground Continuity D129 9 No 10
Is the inspection result normal?
YES
Replace front power window motor RH. Refer to REMOVAL AND INSTALLATION . After that, refer to WORK PROCEDURE .
NO
Repair or replace the harness or connectors.