Diagnosis Procedure

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

1. CHECK PEDAL ADJUSTING SWITCH SIGNAL 
   1. Turn ignition switch OFF.
   2. Check voltage between driver seat control unit harness connector and ground.

      Driver seat control unit connector	Terminals		Condition		Voltage (V) (Approx.)
      	(+)	(-)
      B202	15	Ground	Pedal adjusting switch	Operate (backward)	0
      				Release	Battery voltage
      	30			Operate (forward)	0
      				Release	Battery voltage

      Fig 1: Checking Pedal Adjusting Switch Signal Voltage

      Courtesy of NISSAN NORTH AMERICA, INC.

      Is the inspection result normal? 

      YES: GO TO  5

      NO: GO TO 2

2. CHECK PEDAL ADJUSTING SWITCH CIRCUIT 
   1. Disconnect driver seat control unit and pedal adjusting switch.
   2. Check continuity between driver seat control unit harness connector and pedal adjusting switch harness connector.

      Driver seat control unit connector	Terminal	Pedal adjusting switch connector	Terminal	Continuity
      B202	15	M96	2	Yes
      	30		3

   3. Check continuity between driver seat control unit harness connector and ground.
      Fig 2: Checking Pedal Adjusting Switch Circuit Continuity

      Courtesy of NISSAN NORTH AMERICA, INC.

      Driver seat control unit connector	Terminal	Ground	Continuity
      B202	15		No
      	30

      Is the inspection result normal? 

      YES: GO TO 3

      NO: Repair or replace harness.

3. CHECK DRIVER SEAT CONTROL UNIT OUTPUT 
   1. Connect the driver seat control unit.
   2. Turn ignition switch OFF.
   3. Check voltage between driver seat control unit harness connector and ground.

      Driver seat control unit connector	Terminals		Voltage (V) (Approx.)
      	(+)	(-)
      B202	15	Ground	Battery voltage
      	30

      Fig 3: Checking Driver Seat Control Unit Output Voltage

      Courtesy of NISSAN NORTH AMERICA, INC.

      Is the inspection result normal? 

      YES: GO TO 4

      NO: Replace driver seat control unit. Refer to "REMOVAL AND INSTALLATION ".

4. CHECK PEDAL ADJUSTING SWITCH 

   Refer to "COMPONENT INSPECTION ".

   Is the inspection result normal? 

   YES: GO TO 5

   NO: Replace pedal adjusting switch. Refer to "EXPLODED VIEW ".

5. CHECK PEDAL ADJUSTING SWITCH GROUND CIRCUIT 

   Check continuity between pedal adjusting switch connector M96 terminal 1 and ground.

   1 - Ground: Continuity should exist. 

   Is the inspection result normal? 

   YES: GO TO 6

   NO: Repair or replace harness.

   Fig 4: Checking Pedal Adjusting Switch Ground Circuit Continuity

   Courtesy of NISSAN NORTH AMERICA, INC.
6. 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.