Front Lifting Sensor Circuit Inspection

WARNING: This page is about a different car, the 2004 Nissan Maxima. 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.

Fig 1: Front Lifting Sensor Circuit - Monitor Item Contents Chart
Courtesy of NISSAN MOTOR CO., U.S.A.

Fig 2: DATA MONITOR - CONSULT II Display Screen
Courtesy of NISSAN MOTOR CO., U.S.A.

Without CONSULT-II
1. Turn ignition switch OFF.
2. Check signal between driver seat control unit connector and ground, with oscilloscope.
  
  Fig 3: Signal Reference Chart
  Courtesy of NISSAN MOTOR CO., U.S.A.
  
  Fig 4: 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 is OK.
- NG: GO TO 2.
CHECK FRONT LIFTING SENSOR HARNESS CONTINUITY
1. Disconnect driver seat control unit and front lifter motor.
2. Check continuity between driver seat control unit connector P2 terminal 25 and front lifter motor connector P6 terminal 10.
  25 (L/Y) - 10 (L/Y): Continuity should exist.
3. Check continuity between driver seat control unit connector P2 terminals 25 and ground.
  25 (L/Y) - Ground: Continuity should not exist.
OK or NG
- OK: Replace front lifting motor.
- NG: Repair or replace harness.
  
  Fig 5: Checking Continuity Between Driver Seat Control Unit Connector P2 Terminal 25, Front Lifter Motor Connector P6 Terminal 10 And Ground
  Courtesy of NISSAN MOTOR CO., U.S.A.