Diagnosis Procedure
WARNING: This page is about a different car, the 2016 Infiniti QX60. However, it is still accessible from the selected car via links, so may be relevant.
Regarding Wiring Diagram information, refer to WIRING DIAGRAM .
- CHECK POWER SUPPLY
- Turn ignition switch OFF.
- Disconnect power window main switch connector.
- Turn ignition switch ON.
- Check voltage between power window main switch harness connector and ground.
(+) (-) Voltage
(Approx.)Power window main switch Connector Terminal D56 4 Ground Battery voltage 9
Is the inspection result normal?
YES
GO TO STEP 3 .
NO
GO TO STEP 2 .
- CHECK POWER SUPPLY CIRCUIT
- Turn ignition switch OFF.
- Disconnect BCM connector.
- Check continuity between BCM harness connector and power window main switch harness connector.
BCM Power window main switch Continuity Connector Terminal Connector Terminal M81 140 D56 9 Yes 141 4 - Check continuity between BCM harness connector and ground.
BCM Ground Continuity Connector Terminal M81 140 No
Is the inspection result normal?
YES
Replace BCM. Refer to REMOVAL AND INSTALLATION .
NO
Repair or replace harness.
- CHECK GROUND CIRCUIT
- Turn ignition switch OFF.
- Check continuity between power window main switch harness connector and ground.
Power window main switch Ground Continuity Connector Terminal D56 7 Yes
Is the inspection result normal?
YES
GO TO STEP 4 .
NO
Repair or replace harness.
- CHECK INTERMITTENT INCIDENT
Refer to INTERMITTENT INCIDENT .
Inspection End.