Diagnosis Procedure

1. Turn Ignition Switch ON.
2. Read voltage signal between Driver Seat Control Unit harness connector and ground with oscilloscope.

   (+)		(-)	Condition		Signal (Reference value)
   Driver Seat Control Unit
   Connector	Terminals
   B514	19	Ground	Seat sliding	Operate	Courtesy of NISSAN NORTH AMERICA, INC.
   				Other than the above	0 or 5

Is the inspection result normal?

YES

Replace Driver Seat Control Unit. Refer to Removal and Installation .

NO

GO TO 2.

1. Turn Ignition Switch OFF.
2. Disconnect Driver Seat Control Unit and sliding sensor connector.
3. Check continuity between Driver Seat Control Unit harness connector and sliding sensor harness connector.

   Driver Seat Control Unit		Sliding motor		Continuity
   Connector	Terminal	Connector	Terminal
   B514	19	B519	19	Existed

4. Check continuity between Driver Seat Control Unit harness connector and ground.

   Driver Seat Control Unit		Ground	Continuity
   Connector	Terminal
   B514	19		Not existed

Is the inspection result normal?

YES

GO TO 3.

NO

Repair or replace harness or connector.

1. Connect Driver Seat Control Unit connector.
2. Turn Ignition Switch ON.
3. Check voltage between sliding motor harness connector and ground.

   (+)		(-)	Voltage (V) (Approx.)
   Sliding motor
   Connector	Terminals
   B519	33	Ground	12

Is the inspection result normal?

YES

GO TO 5.

NO

GO TO 4.

1. Turn Ignition Switch OFF.
2. Disconnect Driver Seat Control Unit connector.
3. Check continuity between Driver Seat Control Unit harness connector and sliding motor harness connector.

   Driver Seat Control Unit		Sliding motor		Continuity
   Connector	Terminal	Connector	Terminal
   B514	33	B519	33	Existed

4. Check continuity between Driver Seat Control Unit harness connector and ground.

   Driver Seat Control Unit		Ground	Continuity
   Connector	Terminal
   B514	33		Not existed

Is the inspection result normal?

YES

Replace Driver Seat Control Unit. Refer to Removal and Installation .

NO

Repair or replace harness or connector.

1. Turn Ignition Switch OFF.
2. Check continuity between sliding sensor harness connector and ground.

   Sliding motor		Ground	Continuity
   Connector	Terminal
   B519	42		Existed

Is the inspection result normal?

YES

Replace sliding motor.

NO

Repair or replace harness or connector.