Diagnosis Procedure

POWER WINDOW SERIAL LINK

REAR POWER WINDOW SWITCH LH : Diagnosis Procedure

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

1. CHECK POWER WINDOW SWITCH INPUT 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. Refer to "Removal and Installation" Main Power Window and Door Lock/Unlock Switch.
NO- GO TO 2.

2. CHECK POWER WINDOW SERIAL LINK SIGNAL

1.Turn ignition switch OFF.
2.Disconnect rear power window switch LH connector.
3.Turn ignition switch ON.
4.Check voltage between rear power window switch LH harness connector and ground.





Is the inspection result normal?
YES- Replace power window main switch. Refer to "Removal and Installation" Main Power Window and Door Lock/Unlock Switch.
NO- GO TO 3.

3. CHECK POWER WINDOW SERIAL LINK CIRCUIT

1.Disconnect power window main switch connector.
Revision: March 20122013 Infiniti JX
2.Check continuity between power window main switch harness connector and rear power window switch
LH harness connector.





Is the inspection result normal?
YES- GO TO 4.
NO- Repair or replace harness.

4. CHECK INTERMITTENT INCIDENT

Refer to "Intermittent Incident" Intermittent Incident.
- Inspection End.