Coupe

ENCODER

DRIVER SIDE : Diagnosis Procedure


1. CHECK ENCODER OPERATION

1.Turn ignition switch ON.
2.Check signal between power window main switch harness connector and ground with oscilloscope.










Is the inspection result normal?
YES- Replace power window main switch. Coupe.
NO- GO TO 2.

2. CHECK ENCODER SIGNAL CIRCUIT

1.Turn ignition switch OFF.
2.Disconnect power window main switch connector and driver side power window motor connector.
3.Check continuity between power window main switch harness connector and driver side power window motor harness connector.





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





Is the inspection result normal?
YES- GO TO 3.
NO- Repair or replace harness.

3. CHECK ENCODER POWER SUPPLY CIRCUIT 1

1.Connect power window main switch connector.
2.Turn ignition switch ON.
3.Check voltage between driver side power window motor harness connector and ground.





Is the measurement value within the specification?
YES- GO TO 5.
NO- GO TO 4.

4. CHECK ENCODER POWER SUPPLY CIRCUIT 2

1.Turn ignition switch OFF.
2.Disconnect power window main switch connector.
3.Check continuity between power window main switch harness connector and driver side power window motor harness connector.





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





Is the inspection result normal?
YES- Replace power window main switch. Coupe.
NO- Repair or replace harness.

5. CHECK GROUND CIRCUIT 1

1.Turn ignition switch OFF.
2.Disconnect power window main switch connector.
3.Check continuity between power window main switch harness connector and driver side power window motor harness connector.





Is the inspection result normal?
YES- GO TO 6.
NO- Repair or replace harness.

6. CHECK GROUND CIRCUIT 2

1.Connect power window main switch connector.
2.Check continuity between power window main switch harness connector and ground.





Is the inspection result normal?
YES- Replace driver side power window motor. Coupe.
NO- Replace power window main switch. Coupe.