POWER WINDOW MAIN SWITCH: 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 D22 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 D22 13 Ground 12 Is the inspection result normal?
YES: Replace power window main switch. Refer to "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 M120 8 D22 13 Existed - Check continuity between BCM harness connector and ground.
BCM Ground Continuity Connector Terminal M120 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