Check Encoder Circuit (Driver Side)

POWER WINDOW SYSTEM


Check encoder Circuit (Driver Side)

1.CHECK POWER WINDOW MOTOR (FRONT DRIVER SIDE) POWER SUPPLY
1. Turn ignition switch ON.
2. Check voltage between power window motor (front driver side) connector and ground.










OK or NG
OK - GO TO 3.
NG - GO TO 2.
2.CHECK HARNESS CONTINUITY 1
1. Turn ignition switch OFF.
2. Disconnect power window main switch and power window motor (front driver side).
3. Check continuity between power window main switch connector and power window motor (front driver side) connector.










4. Check continuity between power window main switch connector and ground.





OK or NG
OK - Replace power window main switch.
NG - Repair or replace harness.
3.CHECK GROUND CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect power window motor (front driver side) connector.
3. Check continuity between power window motor (front driver side) connector and ground.










OK or NG
OK - GO TO 5.
NG - GO TO 4.
4.CHECK HARNESS CONTINUITY 2
1. Disconnect power window main switch connector.
2. Check continuity between power window main switch connector and power window motor (front driver side) connector.










OK or NG
OK - Replace power window main switch.
NG - Repair or replace harness.
5.CHECK ENCODER SIGNAL
1. Connect power window motor (front driver side) connector.
2. Turn ignition switch ON.
3. Check signal between power window main switch connector and ground with oscilloscope.














OK or NG
OK - Replace power window main switch.
NG - GO TO 6.
6.CHECK HARNESS CONTINUITY 3
1. Turn ignition switch OFF.
2. Disconnect power window main switch and power window motor (front driver side) connector.
3. Check continuity between power window main switch connector and power window motor (front driver side) connector.










4. Check continuity between power window main switch connector and ground.





OK or NG
OK - Replace power window motor (front driver side).
NG - Repair or replace harness.