Diagnosis Procedure
- CHECK POWER WINDOW SWITCH INPUT SIGNAL
- Turn ignition switch ON.
- Check signal between Power Window Main Switch harness connector and ground with oscilloscope.
(+) (-) Signal
(Reference Value)Power Window Main Switch Connector Terminal D8 13 Ground
Is the inspection result normal?
YES
Replace Power Window Main Switch. Refer to REMOVAL AND INSTALLATION .
NO
GO TO STEP 2 .
- CHECK POWER WINDOW SERIAL LINK CIRCUIT
- Disconnect BCM connector and Power Window Main Switch connector.
- Check continuity between BCM harness connector and Power Window Main Switch harness connector.
BCM Power Window Main Switch Continuity Connector Terminal Connector Terminal M14 54 D8 13 Existed - Check continuity between BCM harness connector and ground.
BCM (-) Continuity Connector Terminal M14 54 Ground Not existed
Is the inspection result normal?
YES
Check intermittent incident. Refer to INTERMITTENT INCIDENT .
NO
Repair or replace harness.