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 MODE DOOR MOTOR (FRONT) POWER SUPPLY

Turn ignition switch ON.
Check voltage between mode door motor (front) harness connector and ground.

+		-	Voltage (Approx.)
Mode door motor (front)
Connector	Terminal
M129	1	Ground	Battery voltage

Is the inspection result normal?

YES

GO TO 2.

GO TO 4.

CHECK MODE DOOR MOTOR (FRONT) GROUND CIRCUIT

Turn ignition switch OFF.
Disconnect mode door motor (front) connector.

Check continuity between mode door motor (front) harness connector and ground.

Mode door motor (front)		--	Continuity
Connector	Terminal
M129	3	Ground	Yes

Is the inspection result normal?

YES

GO TO 3.

Repair harness or connector.

CHECK INSTALLATION OF MODE DOOR MOTOR (FRONT) CONTROL LINKAGE
Check mode door motor (front) control linkage is properly installed. Refer to Exploded View .

Is the inspection result normal?

YES

Replace mode door motor (front). Refer to Removal and Installation - Mode Door Motor (Front) .

NO

Repair or replace malfunctioning part.

CHECK MODE DOOR MOTOR (FRONT) POWER SUPPLY CIRCUIT

Turn ignition switch OFF.
Disconnect mode door motor (front) connector and A/C auto amp. connector.

Check continuity between mode door motor (front) harness connector and A/C auto amp. harness connector.

Mode door motor (front)		A/C auto amp.		Continuity
Connector	Terminal	Connector	Terminal	Continuity
M129	1	M50	17	Yes

Is the inspection result normal?

YES

Replace A/C auto amp. Refer to Removal and Installation .

Repair harness or connector.