Diagnosis Procedure
- CHECK POWER WINDOW SWITCH INPUT 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 16 Ground
Is the inspection result normal?
YES
Replace Power Window Sub-Switch. Refer to REMOVAL AND INSTALLATION .
NO
GO TO STEP 2 .
- CHECK POWER WINDOW SERIAL LINK CIRCUIT
- Disconnect Power Window Main Switch connector.
- Check continuity between Power Window Main Switch harness connector and Power Window Sub-Switch harness connector.
Power Window Main Switch Power Window Sub-Switch Continuity Connector Terminal Connector Terminal D8 13 D21 16 Existed - Check continuity between Power Window Main Switch harness connector and ground.
Power Window Main Switch (-) Continuity Connector Terminal D8 13 Ground Not existed
Is the inspection result normal?
YES
Check intermittent incident. Refer to INTERMITTENT INCIDENT .
NO
Repair or replace harness.