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 WINDOW SWITCH INPUT SIGNAL
- Turn ignition switch ON.
- Check signal between rear power window switch LH harness connector and ground with oscilloscope.
(+) (-) Signal
(Reference value)Rear power window switch LH Connector Terminal D256 16 Ground
Is the inspection result normal?
YES
Replace rear power window switch LH. Refer to REMOVAL AND INSTALLATION .
NO
GO TO STEP 2 .
- CHECK POWER WINDOW SERIAL LINK SIGNAL
- Turn ignition switch OFF.
- Disconnect rear power window switch LH connector.
- Turn ignition switch ON.
- Check voltage between rear power window switch LH harness connector and ground.
(+) (-) Voltage
(Approx.)Rear power window switch LH Connector Terminal D256 16 Ground Battery voltage
Is the inspection result normal?
YES
Replace power window main switch. Refer to REMOVAL AND INSTALLATION .
NO
GO TO STEP 3 .
- CHECK POWER WINDOW SERIAL LINK CIRCUIT
- Disconnect power window main switch connector.
- Check continuity between power window main switch harness connector and rear power window switch LH harness connector.
Power window main switch Rear power window switch LH Continuity Connector Terminal Connector Terminal D56 13 D256 16 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.