Diagnosis Procedure

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

1. CHECK LIFTING MOTOR (FRONT) POWER SUPPLY 
   1. Turn the ignition switch OFF.
   2. Perform "Active test" ("SEAT LIFTER FR") with CONSULT.
   3. 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 Lifting Motor (Front) Power Supply Voltage

      Courtesy of NISSAN NORTH AMERICA, INC.

      Is the inspection result normal? 

      YES: Replace lifting motor (front). (Built in power seat frame assembly). Refer to "DISASSEMBLY AND ASSEMBLY ".

      NO: GO TO 2

2. CHECK LIFTING MOTOR (FRONT) CIRCUIT 
   1. Disconnect driver seat control unit and lifting motor (front) connectors.
   2. 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
      	45		5

   3. Check continuity between driver seat control unit harness connector and ground.
      Fig 2: Checking Lifting Motor (Front) Circuit Continuity

      Courtesy of NISSAN NORTH AMERICA, INC.

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

      Is the inspection result normal? 

      YES: GO TO 3

      NO: Repair or replace harness.

3. CHECK INTERMITTENT INCIDENT 

   Refer to "INTERMITTENT INCIDENT ".

   Is the inspection result normal? 

   YES: Replace driver seat control unit. Refer to "REMOVAL AND INSTALLATION ".

   NO: Repair or replace the malfunctioning part.