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 4.
NO>>
GO TO 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 POWER WINDOW MAIN SWITCH : Removal and Installation .
NO>>
GO TO 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 BCM : Removal and Installation .
NO>>
Repair or replace harness.
- CHECK INTERMITTENT INCIDENT
Refer to Inspection .
>>
INSPECTION END