Diagnosis Procedure

WARNING: This page is about a different car, the 2012 Nissan Pathfinder. However, it is still accessible from the selected car via links, so may be relevant.

Regarding Wiring Diagram information, refer to "WIRING DIAGRAM ".

CHECK LIFTING MOTOR (FRONT) POWER SUPPLY

Turn the ignition switch to ACC.
Perform "Active test" ("SEAT LIFTER FR") with CONSULT.

Check voltage between driver seat control unit harness connector and ground.

Terminal			Test Item		Voltage (V) (Approx.)
(+)		(-)
Driver seat control unit connector	Terminal	(-)
B203	37	Ground	SEAT LIFTER FR	OFF	0
				UP	0
				DWN (down)	Battery voltage
	45			OFF	0
				UP	Battery voltage
				DWN (down)	0

Fig 1: Checking Voltage Between Driver Seat Control Unit Harness Connector B203 Terminals And Ground

Courtesy of NISSAN NORTH AMERICA, INC.

Is the inspection result normal?

YES: Replace lifting motor (front). Refer to "EXPLODED VIEW ".

NO: GO TO 2

CHECK LIFTING MOTOR (FRONT) CIRCUIT

Turn ignition switch OFF.
Disconnect driver seat control unit and lifting motor (front).

Check continuity between driver seat control unit harness connector and lifting motor (front) harness connector.

Driver seat control unit connector	Terminal	Lifting motor (front) connector	Terminal	Continuity
B203 (A)	37	B206 (B)	1	Yes
B203 (A)	45	B206 (B)	5	Yes

Check continuity between driver seat control unit harness connector and ground.

Driver seat control unit connector	Terminal	Ground	Continuity
B203 (A)	37		No
	45

Fig 2: Checking Continuity Between Driver Seat Control Unit Harness Connector B203 And Lifting Motor (Front) Harness Connector B206 Terminals

Courtesy of NISSAN NORTH AMERICA, INC.

Is the inspection result normal?

YES: GO TO 3

NO: Repair or replace harness.

CHECK INTERMITTENT INCIDENT
Refer to "INTERMITTENT INCIDENT ".

Is the inspection result normal?

YES: Replace driver seat control unit. Refer to "EXPLODED VIEW ".

NO: Repair or replace the malfunctioning part.