Diagnosis Procedure

WARNING: This page is about a different car, the 2016 Infiniti QX70. However, it is still accessible from the selected car via links, so may be relevant.

PERFORM SELF - DIAGNOSIS

Perform self - diagnosis function. Refer to DIAGNOSIS DESCRIPTION (WITHOUT ACCS) or DIAGNOSIS DESCRIPTION (WITH ACCS).

Is the inspection result normal?

YES

GO TO STEP 5.

NO

GO TO STEP 2.

CHECK POWER SUPPLY FOR MODE DOOR MOTOR

Check voltage between mode door motor harness connector and ground.

(+)		(-)	Voltage (Approx.)
Mode door motor		-
Connector	Terminal	-
M253	1	Ground	12 V

Is the inspection result normal?

YES

GO TO STEP 3 .

Repair harness or connector.

CHECK SIGNAL FOR MODE DOOR MOTOR

Confirm A/C LAN signal between mode door motor harness connector and ground using an oscilloscope.

(+)		(-)	Voltage
Mode door motor		-
Connector	Terminal	-
M253	3	Ground	Courtesy of NISSAN NORTH AMERICA, INC.

Is the inspection result normal?

YES

GO TO STEP 4 .

Repair harness or connector.

CHECK MODE DOOR MOTOR GROUND CIRCUIT

Turn ignition switch OFF.
Disconnect mode door motor connector.

Check continuity between mode door motor harness connector and ground.

Mode door motor		-		Continuity
Connector	Terminal	-		Continuity
M253	2	Ground		Existed

Is the inspection result normal?

YES

Replace mode door motor.

Repair harness or connector.

CHECK MODE DOOR CONTROL LINKAGE

Check mode door control linkage is properly installed. Refer to EXPLODED VIEW WITH TORQUE SPECIFICATIONS .

Is it installed normally?

YES

INSPECTION END

NO

Repair or adjust control linkage.