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.

MONITOR ITEM

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 REFERENCE VALUE

Connector	Terminals (Wire color)		Condition	Signal (Reference value)
Connector	(+)	(-)	Condition	Signal (Reference value)
B324	25 (G/Y)	Ground	Front lifting motor operation	Courtesy of NISSAN MOTOR CO., U.S.A.

Fig 2: Identifying 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 B324 terminals 25, 31 and front lifting motor connector B330 terminals 25, 31B.
  25 (G/Y) - 25 (G/Y) : Continuity should exist.
  
  31 (B/W) - 31B (B/W) : Continuity should exist.
3. Check continuity between driver seat control unit connector B324 terminals 25, 31 and ground.
  25 (G/Y) - Ground : Continuity should not exist.
  
  31 (B/W) - Ground : Continuity should not exist.
Fig 3: Identifying Continuity Between Driver Seat Control Unit Connector B324 Terminals 25, 31 And Ground
Courtesy of NISSAN MOTOR CO., U.S.A.

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