Check Front Lifting Sensor Circuit

WARNING: This page is about a different car, the 2006 Infiniti G35. 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.

DATA MONITOR ITEM REFERENCE TABLE

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

SIGNAL CHECK TABLE

Connector	Terminals (Wire color)		Condition	Signal (Reference value)
Connector	(+)	(-)	Condition	Signal (Reference value)
B352	25 (Y/B)	Ground	Front lifting motor operation	Courtesy of NISSAN MOTOR CO., U.S.A.

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

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

OK or NG

OK: Front lifting sensor circuit is OK.

NG: GO TO 2.

CHECK FRONT LIFTING SENSOR HARNESS CONTINUITY
1. Disconnect driver seat control unit connector and front lifting motor connector.
2. Check continuity between driver seat control unit connector B352 terminals 25, 31 and front lifting motor connector B359 terminals 25, 31B.
  25 (Y/B) - 25 (Y/B): Continuity should exist .
  
  31 (GY) - 31B (GY): Continuity should exist .
3. Check continuity between driver seat control unit connector B352 terminals 25, 31 and ground.
  25 (Y/B) - Ground: Continuity should not exist .
  
  31 (GY) - Ground: Continuity should not exist .
OK or NG

OK: Replace front lifting motor.

NG: Repair or replace harness between driver seat control unit and front lifting motor.

Fig 3: Checking Continuity Between Driver Seat Control Unit And Front Lifting Motor Connector Terminals
Courtesy of NISSAN MOTOR CO., U.S.A.