Check Reclining Sensor Circuit

WARNING: This page is about a different car, the 2006 Infiniti G35. However, it is still accessible from the selected car via links, so may be relevant.

CHECK FUNCTION

With CONSULT-II

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

DATA MONITOR ITEM REFERENCE TABLE

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

Fig 1: CONSULT-II Display Data Monitor

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.

SIGNAL CHECK TABLE

Connector	Terminals (Wire color)		Condition	Signal (Reference value)
Connector	(+)	(-)	Condition	Signal (Reference value)
B352	9 (W/G)	Ground	Reclining motor operation	Courtesy of NISSAN MOTOR CO., U.S.A.

Fig 2: Checking 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.

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 B352 terminals 9, 31 and reclining motor connector B358 terminals 9, 31.
  9 (W/G) - 9 (W/G): Continuity should exist .
  
  31 (GY) - 31 (GY): Continuity should exist .
3. Check continuity between driver seat control unit connector B352 terminals 9, 31 and ground.
  9 (W/G) - Ground: Continuity should not exist .
  
  31 (GY) - Ground: Continuity should not exist .
  
  Fig 3: Checking Continuity Between Driver Seat Control Unit And Reclining Motor Connector Terminals
  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.