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Front Lifting Sensor Circuit Inspection

CHECK FUNCTION

With CONSULT-II

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

MONITOR TEST ITEM DESCRIPTION

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

Fig 1: CONSULT-II Display - LIFT FR PULSE On DATA MONITOR

G03107609

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.

Fig 2: Checking Signal Between Driver Seat Control Unit Connector And Ground (1 Of 2)
Courtesy of NISSAN MOTOR CO., U.S.A.

Fig 3: Checking Signal Between Driver Seat Control Unit Connector And Ground (2 Of 2)
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 B152 terminals 19 (G/Y), 28C (B/W) and front lifting motor connector B164 terminals 19 (G/Y), 28A (B/W).
  19 (G/Y) - 19 (G/Y): Continuity should exist.
  
  28C (B/W) - 28A (B/W): Continuity should exist.
  
  Fig 4: Checking Front Lifting Sensor Harness Continuity
  Courtesy of NISSAN MOTOR CO., U.S.A.
3. Check continuity between driver seat control unit connector B152 terminals 19 (G/Y), 28C (B/W) and ground.
  19 (G/Y) - Ground: Continuity should not exist.
  
  28C (B/W) - Ground: Continuity should not exist.
OK or NG
1. OK: Replace front lifting motor.
2. NG: Repair or replace harness between driver seat control unit and front lifting motor.