Diagnosis Procedure

WARNING: This page is about a different car, the 2020 Infiniti Q50. 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 rear power window switch RH harness connector and ground with oscilloscope.

(+)		(-)	Signal (Reference value)
Rear power window switch RH
Connector	Terminal
D43	16	Ground	Courtesy of NISSAN NORTH AMERICA, INC.

Is the inspection result normal?

YES

Replace rear power window switch RH. Refer to REAR POWER WINDOW SWITCH : Removal & Installation .

GO TO 2.

CHECK POWER WINDOW SERIAL LINK SIGNAL

Turn ignition switch OFF.
Disconnect rear power window switch RH connector.
Turn ignition switch ON.

Check voltage between rear power window switch RH harness connector and ground.

(+)		(-)	Voltage (V)
Rear power window switch RH
Connector	Terminal
D43	16	Ground	9 - 16

Is the inspection result normal?

YES

Replace power window main switch. Refer to POWER WINDOW MAIN SWITCH : Removal & Installation .

GO TO 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 RH harness connector.

Power window main switch		Rear power window switch RH		Continuity
Connector	Terminal	Connector	Terminal	Continuity
D8	13	D43	16	Existed

Check continuity between power window main switch harness connector and ground.

Power window main switch		Ground	Continuity
Connector	Terminal
D8	13		Not existed

Is the inspection result normal?

YES

GO TO 4.

Repair or replace harness.

CHECK INTERMITTENT INCIDENT
Refer to Inspection .

INSPECTION END