Check Reclining Sensor Circuit

1. CHECK FUNCTION 

   With CONSULT-II 

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

   Fig 1: Identifying CONSULT II Display - DATA MONITOR

   Courtesy of NISSAN MOTOR CO., U.S.A.
   RECLN PULSE FUNCTION (WITH CONSULT-II)
   
   

   Monitor item [OPERATION or UNIT]	Contents
   RECLN PULSE	The seat reclining position (pulse) judged from the reclining sensor is displayed

   Without CONSULT-II 

   1. Turn ignition switch OFF.
   2. Check signal between driver seat control unit connector and ground, with oscilloscope.
   Fig 2: Identifying Signal Between Driver Seat Control Unit Connector And Ground
   Courtesy of NISSAN MOTOR CO., U.S.A.
   RECLN PULSE FUNCTION (WITHOUT CONSULT-II)
   
   

   Connector	Terminals (Wire color)		Condition	Signal (Reference value)
   	(+)	(-)
   B152	29 (G)	Ground	Reclining motor operation	Courtesy of NISSAN MOTOR CO., U.S.A.

   OK or NG 

   OK: Reclining sensor circuit is OK.

   NG: GO TO 2.

2. CHECK RECLINING SENSOR HARNESS CONTINUITY 

1. Disconnect driver seat control unit connector and reclining motor connector.
2. Check continuity between driver seat control unit connector B152 terminals 28C, 29 and reclining motor connector B166 terminals 28, 29.

   28C (B/W) - 28 (B/W) : Continuity should exist. 

   29 (G) - 29 (G) : Continuity should exist. 

3. Check continuity between driver seat control unit connector B152 terminals 28C, 29 and ground.

   28C (B/W) - Ground : Continuity should not exist. 

   29 (G) - Ground : Continuity should not exist. 

   Fig 3: Checking Reclining Sensor Harness Continuity

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

OK or NG 

OK: Replace reclining motor.

NG: Repair or replace harness between connectors driver seat control unit and reclining motor.