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Front Lifting Sensor Circuit Check

CHECK FUNCTION

With CONSULT-II

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

DIAGNOSIS PROCEDURE

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

Fig 1: Data Monitor Display

G02364335

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: Signal Table
Courtesy of NISSAN MOTOR CO., U.S.A.

Fig 3: Checking Signal Between Terminal 19 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 B152 terminals 19, 28C and front lifting motor connector B164 terminals 19, 28A.
  1. 19 (G/Y) - 19 (G/Y) : Continuity should exist.
  2. 28C (B/W) - 28A (B/W) : Continuity should exist.
3. Check continuity between driver seat control unit connector B152 terminals 19, 28C and ground.
  1. 19 (G/Y) - Ground : Continuity should not exist.
  2. 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.
Fig 4: Checking Continuity Between Terminals 19, 28C And Ground
Courtesy of NISSAN MOTOR CO., U.S.A.