Rear LH

ENCODER:_:REAR LH





Component Function Check
1.CHECK ENCODER OPERATION
Check that rear door LH glass performs AUTO open/close operation normally by power window main switch or rear power window switch LH.
Is the inspection result normal?
YES - Encoder operation is OK.
NO - SEE Diagnosis Procedure.




Diagnosis Procedure
1.CHECK ENCODER SIGNAL
1. Turn ignition switch ON.
2. Check signal between rear power window switch LH harness connector and ground with oscilloscope.










Is the inspection result normal?
YES - Replace rear power window switch LH. Service and Repair.
NO - GO TO 2.
2.CHECK ENCODER SIGNAL CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect rear power window switch LH connector and rear power window motor LH connector.
3. Check continuity between rear power window switch LH harness connector and rear power window motor
LH harness connector.





4. Check continuity rear power window switch LH harness connector and ground.





Is the inspection result normal?
YES - GO TO 3.
NO - Repair or replace harness.
3.CHECK ENCODER POWER SUPPLY
1. Connect rear power window switch LH connector.
2. Turn ignition switch ON.
3. Check voltage between rear power window motor LH harness connector and ground.





Is the inspection result normal?
YES - GO TO 5.
NO - GO TO 4.
4.CHECK ENCODER POWER SUPPLY CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect rear power window switch LH connector.
3. Check continuity between rear power window switch LH harness connector and rear power window motor
LH harness connector.





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





Is the inspection result normal?
YES - Replace rear power window switch LH. Service and Repair.
NO - Repair or replace harness.
5.CHECK GROUND CIRCUIT 1
1. Turn ignition switch OFF.
2. Check continuity between rear power window motor LH harness connector and ground.





Is the inspection result normal?
YES - Replace rear power window motor LH. Removal And Installation.
NO - GO TO 6.
6.CHECK GROUND CIRCUIT 2
1. Disconnect rear power window switch LH harness connector.
2. Check continuity between rear power window switch LH harness connector and rear power window motor
LH harness connector.





3. Check continuity between rear power window switch LH harness connector and ground.





Is the inspection result normal?
YES - Replace rear power window switch LH. Service and Repair.
NO - Repair or replace harness.