Lifting Sensor (Front) Circuit Inspection

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

CHECK FUNCTION

With CONSULT-II

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

CONSULT-II FUNCTION

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

Fig 1: CONSULT-II Display - DATA MONITOR

Without CONSULT-II

Turn ignition switch OFF.

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

CONSULT-II FUNCTION

Connector	Terminals		Condition	Signal
Connector	(+)	(-)	Condition	Signal
P2	25	Ground	Lifting motor (front) operation

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

OK or NG

OK : Lifting sensor (front) is OK.

NG : GO TO 2.

CHECK LIFTING MOTOR (FRONT) SENSOR CIRCUIT HARNESS CONTINUITY
1. Disconnect driver seat control unit and lifting motor (front).
2. Check continuity between driver seat control unit connector P2 terminals 16, 25, 31 and lifting motor (front) connector P6 terminals 1, 2, 3.
  16 - 3 : Continuity should exist.
  
  25 - 2 : Continuity should exist.
  
  31 - 1 : Continuity should exist.
3. Check continuity between driver seat control unit connector P2 terminals 16, 25, 31 and ground.
  16 - Ground : Continuity should not exist.
  
  25 - Ground : Continuity should not exist.
  
  31 - Ground : Continuity should not exist.
  
  Fig 3: Identifying Lifting Motor (Front) Sensor Circuit Harness Continuity
OK or NG

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

NG : Repair or replace harness.