FREE REPAIR MANUALS & LABOR GUIDES 1982-2013 Vehicles
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Diagnosis Procedure




ENCODER

PASSENGER SIDE : Diagnosis Procedure


1. CHECK ENCODER SIGNAL

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










Is the inspection result normal?
YES- Replace power window sub-switch. Refer to "Removal and Installation" Service and Repair.
NO- GO TO 2.

2. CHECK ENCODER SIGNAL CIRCUIT

1.Turn ignition switch OFF.
2.Disconnect power window sub-switch connector and passenger side power window motor connector.
3.Check continuity between power window sub-switch harness connector and passenger side power window motor harness connector.





4.Check continuity between power window sub-switch 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 sub-switch connector.
2.Turn ignition switch ON.
3.Check voltage between passenger 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 sub-switch connector.
3.Check continuity between power window sub-switch harness connector and passenger side power window motor harness connector.





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





Is the inspection result normal?
YES- Replace power window sub-switch. Refer to "Removal and Installation" Service and Repair.
NO- Repair or replace harness.

5. CHECK GROUND CIRCUIT 1

1.Turn ignition switch OFF.
2.Disconnect power window sub-switch connector.
3.Check continuity between power window sub-switch harness connector and passenger 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 sub-switch connector.
2.Check continuity between power window sub-switch harness connector and ground.





Is the inspection result normal?
YES- Replace passenger side power window motor. Refer to "Removal and Installation" Removal and Installation.
NO- Replace power window sub-switch. Refer to "Removal and Installation" Service and Repair.