Cube L4-1.8L (MR18DE) (2010)
1.CHECK DOOR LOCK AND UNLOCK SWITCH INPUT SIGNAL
1. Turn ignition switch OFF.
2. Disconnect front power window switch (passenger side) connector.
3. Check signal between front power window switch (passenger side) harness connector and ground using oscilloscope.
Is the inspection result normal?
YES - GO TO 4.
NO - GO TO 2.
2.CHECK DOOR LOCK AND UNLOCK SWITCH CIRCUIT
1. Disconnect BCM connector and power window main switch connector.
2. Check continuity between BCM harness connector and front power window switch (passenger side) harness connector.
3. Check continuity between BCM connector and ground.
Is the inspection result normal?
YES - GO TO 3.
NO - Repair or replace harness.
3.CHECK BCM OUTPUT SIGNAL
1. Connect BCM connector.
2. Check signal between BCM harness connector and ground using oscilloscope.
Is the inspection result normal?
YES - GO TO 6.