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 POWER WINDOW SWITCH INPUT SIGNAL
- Turn ignition switch ON.
- Check signal between power window and door lock/unlock switch RH harness connector and ground with oscilloscope.
(+)
(-)
Signal
(Reference value)
Power window and door lock/unlock switch RH
Connector
Terminal
D157
16
Ground
Is the inspection result normal?
YES
Replace power window and door lock/unlock switch RH. Refer to Removal and Installation .
NO
GO TO 2.
- CHECK POWER WINDOW SERIAL LINK SIGNAL
- Turn ignition switch OFF.
- Disconnect power window and door lock/unlock switch RH connector.
- Turn ignition switch ON.
- Check voltage between power window and door lock/unlock switch RH harness connector and ground.
(+)
(-)
Voltage
(Approx.)
Power window and door lock/unlock switch RH
Connector
Terminal
D157
16
Ground
Battery voltage
Is the inspection result normal?
YES
Replace main power window and lock/unlock switch. Refer to Removal and Installation .
NO
GO TO 3.
- CHECK POWER WINDOW SERIAL LINK CIRCUIT
- Disconnect main power window and lock/unlock switch connector.
- Check continuity between main power window and lock/unlock switch harness connector and power window and door lock/unlock switch RH harness connector.
Main power window and lock/unlock switch
Power window and door lock/unlock switch RH
Continuity
Connector
Terminal
Connector
Terminal
D56
13
D157
16
Yes
Is the inspection result normal?
YES
GO TO 4.
NO
Repair or replace harness.
- CHECK INTERMITTENT INCIDENT
Refer to Intermittent Incident .
Inspection End.