Lifting Sensor (Rear) Circuit Inspection

WARNING: This page is about a different car, the 2006 Nissan Quest. However, it is still accessible from the selected car via links, so may be relevant.

CHECK REAR END LIFTING SENSOR INPUT/OUTPUT SIGNAL

With CONSULT-II

Check operation with "LIFT RR PULSE" on the DATA MONITOR to make sure pulse changes.

MONITOR ITEM DESCRIPTION

Monitor item [OPERATION or UNIT]		Contents
LIFT RR PULSE	-	The rear lifting position (pulse) judged from the lifting sensor (rear) is displayed.

Fig 1: CONSULT II Display - Data Monitor

Courtesy of NISSAN MOTOR CO., U.S.A.

Without CONSULT-II

Turn ignition switch OFF.

Check signal between driver seat control unit connector and ground, with oscilloscope.

TERMINALS SIGNAL REFERENCE

Connector	Terminals		Condition	Signal
Connector	(+)	(-)	Condition	Signal
P2	10	Ground	Lifting motor (rear) operation

Fig 2: Identifying Signal Between Driver Seat Control Unit Connector And Ground, With Oscilloscope

Courtesy of NISSAN MOTOR CO., U.S.A.

OK or NG

OK: Rear lifting sensor circuit is OK.

NG: GO TO 2.

CHECK REAR LIFTING SENSOR CIRCUIT HARNESS CONTINUITY
1. Disconnect driver seat control unit and lifting motor (rear).
2. Check continuity between driver seat control unit connector P2 terminals 10, 16, 31 and lifting motor (rear) connector P7 terminals 1, 2, 3.
  10 - 2: Continuity should exist.
  
  16 - 3: Continuity should exist.
  
  31 - 1: Continuity should exist.
3. Check continuity between driver seat control unit connector P2 terminals 10, 16, 31 and ground.
  10 - Ground: Continuity should not exist.
  
  16 - Ground: Continuity should not exist.
  
  31 - Ground: Continuity should not exist.
  
  Fig 3: Identifying Continuity Between Driver Seat Control Unit Connector P2 Terminals 10, 16, 31 And Lifting Motor (Rear) Connector P7 Terminals 1, 2, 3
  Courtesy of NISSAN MOTOR CO., U.S.A.
OK or NG

OK: Replace lifting motor (rear). Refer to "FRONT SEAT ".

NG: Repair or replace harness.