Diagnosis Procedure
WARNING: This page is about a different car, the 2020 Infiniti QX60. However, it is still accessible from the selected car via links, so may be relevant.
- CHECK FRONT POWER WINDOW MOTOR INPUT SIGNAL
- Turn ignition switch OFF.
- Disconnect front power window motor LH connector.
- Turn ignition switch ON.
- Check voltage between front power window motor LH harness connector and ground.
(+)
(-)
Condition
Voltage
(Approx.)
Front power window motor LH
Connector
Terminal
D9
1
Ground
Main power window and door lock/unlock switch
UP
Battery voltage
DOWN
0
2
UP
0
DOWN
Battery voltage
Is the inspection result normal?
YES
Replace front power window motor LH. Refer to Removal and Installation .
NO
GO TO 2.
- CHECK POWER WINDOW MOTOR CIRCUIT
- Turn ignition switch OFF.
- Disconnect main power window and door lock/unlock switch connector.
- Check continuity between main power window and door lock/unlock switch harness connector and front power window motor LH harness connector.
Main power window and door lock/unlock switch
Front power window motor LH
Continuity
Connector
Terminal
Connector
Terminal
D56
6
D9
1
Yes
5
2
- Check continuity between main power window and door lock/unlock switch harness connector and ground.
Main power window and door lock/unlock switch
Ground
Continuity
Connector
Terminal
D56
6
No
5
Is the inspection result normal?
YES
Replace main power window and door lock/unlock switch. Refer to Removal and Installation .
NO
Repair or replace harness.