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 AIR MIX DOOR MOTOR (DRIVER SIDE) POWER SUPPLY

Turn ignition switch ON.
Check voltage between air mix door motor (driver side) harness connector and ground.

+		-	Voltage (Approx.)
Air mix door motor (driver side)
Connector	Terminal
M130	1	Ground	Battery voltage

Is the inspection result normal?

YES

GO TO 2.

GO TO 4.

CHECK AIR MIX DOOR MOTOR (DRIVER SIDE) GROUND CIRCUIT

Turn ignition switch OFF.
Disconnect air mix door motor (driver side) connector.

Check continuity between air mix door motor (driver side) harness connector and ground.

Air mix door motor (driver side)		--	Continuity
Connector	Terminal
M130	3	Ground	Yes

Is the inspection result normal?

YES

GO TO 3.

Repair harness or connector.

CHECK INSTALLATION OF AIR MIX DOOR MOTOR (DRIVER SIDE)
Check air mix door motor (driver side) is properly installed. Refer to Exploded View .

Is the inspection result normal?

YES

Replace air mix door motor (driver side). Refer to Removal and Installation - Air Mix Door Motor (Driver Side) .

NO

Repair or replace malfunctioning part.

CHECK AIR MIX DOOR MOTOR (DRIVER SIDE) POWER SUPPLY CIRCUIT

Turn ignition switch OFF.
Disconnect air mix door motor (driver side) connector and A/C auto amp. connector.

Check continuity between air mix door motor (driver side) harness connector and A/C auto amp. harness connector.

Air mix door motor (driver side)		A/C auto amp.		Continuity
Connector	Terminal	Connector	Terminal	Continuity
M130	1	M50	17	Yes

Is the inspection result normal?

YES

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

Repair harness or connector.