Diagnosis Procedure

ENCODER

REAR RH : Diagnosis Procedure

Regarding Wiring Diagram information, refer to "Wiring Diagram" [1][2]Electrical Diagrams.

1. CHECK ENCODER SIGNAL

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

Is the inspection result normal?
YES- Replace rear power window switch RH. Refer to "Removal and Installation" Main Power Window and Door Lock/Unlock Switch.
NO- GO TO 2.

2. CHECK ENCODER SIGNAL CIRCUIT

1.Turn ignition switch OFF.
2.Disconnect rear power window switch RH connector and rear power window motor RH connector.
3.Check continuity between rear power window switch RH harness connector and rear power window motor
RH harness connector.

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

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

3. CHECK ENCODER POWER SUPPLY

Revision: March 20122013 Infiniti JX
1.Connect rear power window switch RH connector.
2.Turn ignition switch ON.
3.Check voltage between rear power window motor RH 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 RH connector.
3.Check continuity between rear power window switch RH harness connector and rear power window motor
RH harness connector.

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

Is the inspection result normal?
YES- Replace rear power window switch RH. Refer to "Removal and Installation" Main Power Window and Door Lock/Unlock Switch.
NO- Repair or replace harness.

5. CHECK GROUND CIRCUIT 1

1.Turn ignition switch OFF.
2.Check continuity between rear power window motor RH harness connector and ground.

Is the inspection result normal?
YES- Replace rear power window motor RH. Refer to "Removal and Installation" Service and Repair.
NO- GO TO 6.

6. CHECK GROUND CIRCUIT 2

1.Disconnect rear power window switch RH harness connector.
2.Check continuity between rear power window switch RH harness connector and rear power window motor
RH harness connector.

3.Check continuity between rear power window switch RH harness connector and ground.
Revision: March 20122013 Infiniti JX