Check Reclining Sensor Circuit

With CONSULT-II 

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

Fig 1: CONSULT II Display - Data Monitor

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.
   TERMINAL SIGNAL CHART
   
   

   Connector	Terminals (Wire color)		Condition	Signal (Reference value)
   	(+)	(-)
   B152	29(G)	Ground	Reclining motor operation

   Fig 2: Identifying Signal Between Driver Seat Control Unit Connector And Ground

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

OK or NG 

OK : Reclining sensor circuit is OK.

NG : GO TO 2.

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: Identifying Continuity Between Driver Seat Control Unit Connector B152 Terminals 28C, 29 And Ground

   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.