Diagnosis Procedure

ENCODER


DRIVER SIDE : Description

Detects condition of the front power window motor (driver side) operation and transmits to power window main switch as the pulse signal.




ENCODER


DRIVER SIDE : Diagnosis Procedure

1.CHECK ENCODER SIGNAL
1. Turn ignition switch ON.
2. Check signal between power window main switch harness connector and ground using oscilloscope.










Is the inspection result normal?
YES - Replace power window main switch. Refer to Power Window Main Switch.
NO - GO TO 2.
2.CHECK ENCODER SIGNAL CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect power window main switch connector and front power window motor (driver side) connector.
3. Check continuity between power window main switch harness connector and front power window motor
(driver side) 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 front power window motor (driver side) harness connector and ground.





Is the inspection result normal?
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 front power window motor
(driver side) 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. Refer to Power Window Main Switch.
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 front power window motor
(driver side) 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 front power window motor (driver side). Refer to Removal and Installation .
NO - Replace power window main switch. Refer to Power Window Main Switch.