Diagnosis Procedure
Regarding Wiring Diagram information, refer to WIRING DIAGRAM .
- 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 D7 3 Ground
Is the inspection result normal?
YES
GO TO STEP 4 .
NO
GO TO STEP 2 .
- CHECK POWER WINDOW SERIAL LINK SIGNAL
- Turn ignition switch OFF.
- Disconnect power window main switch connector.
- Turn ignition switch ON.
- Check voltage between power window main switch harness connector and ground.
(+) (-) Voltage
(Approx.)Power window main switch Connector Terminal D7 3 Ground 12
Is the inspection result normal?
YES
Replace power window main switch. Refer to REMOVAL AND INSTALLATION .
NO
GO TO STEP 3 .
- CHECK POWER WINDOW SERIAL LINK CIRCUIT
- Disconnect the main power window and door lock/unlock switch connector and the power window and door lock/unlock switch RH connector.
- Check continuity between the main power window and door lock/unlock switch harness connector D7 and the power window and door lock/unlock switch RH harness connector D105.
Main power window and door lock/unlock switch Power window and door lock/unlock switch RH Continuity Connector Terminal Connector Terminal D7 3 D105 12 Yes
Is the inspection result normal?
YES
GO TO 4.
NO
Repair or replace harness.
- CHECK INTERMITTENT INCIDENT
Refer to INTERMITTENT INCIDENT .
Inspection End.