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 D5 13 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 (V)
(Approx.)Power window main switch Connector Terminal D5 13 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 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 M68 8 D5 13 Existed - Check continuity between BCM harness connector and ground.
BCM Ground Continuity Connector Terminal M68 8 Not existed
Is the inspection result normal?
YES
Replace BCM. Refer to REMOVAL AND INSTALLATION .
NO
Repair or replace harness.
- CHECK INTERMITTENT INCIDENT
Refer to INTERMITTENT INCIDENT .
INSPECTION END