Reclining Sensor Circuit Inspection

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

CHECK FUNCTION

With CONSULT-II

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

MONITOR ITEM DESCRIPTION

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.

TERMINALS SIGNAL REFERENCE

Connector	Terminals		Condition	Signal
Connector	(+)	(-)	Condition	Signal
P2	9	Ground	Reclining motor operation

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

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

OK or NG

OK: Reclining sensor circuit is OK.

NG: GO TO 2.

CHECK RECLINING SENSOR CIRCUIT HARNESS CONTINUITY
1. Disconnect driver seat control unit and reclining motor LH.
2. Check continuity between driver seat control unit connector P2 terminals 9, 31 and reclining motor LH connector B311 terminals 1, 2.
  9 - 2: Continuity should exist.
  
  31 - 1: Continuity should exist.
3. Check continuity between driver seat control unit connector P2 terminals 9, 31 and ground.
  9 - Ground: Continuity should not exist.
  
  31 - Ground: Continuity should not exist.
  
  Fig 3: Identifying Continuity Between Driver Seat Control Unit Connector P2 Terminals 9, 31 And Reclining Motor LH Connector B311 Terminals 1, 2
  Courtesy of NISSAN MOTOR CO., U.S.A.
OK or NG

OK: Replace reclining motor. Refer to "FRONT SEAT ".

NG: Repair or replace harness.