Reclining Sensor Circuit Inspection

WARNING: This page is about a different car, the 2006 Infiniti QX56. 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 CONTENTS

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.

CONNECTOR TERMINAL VOLTAGE SIGNAL SPECIFICATION

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

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

OK or NG

OK : Reclining sensor circuit is OK.
NG : GO TO 2.

CHECK RECLINING MOTOR 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 P5 terminals 1, 2.
  9 - 1 : Continuity should exist.
  
  31 - 2 : 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 Ground
  Courtesy of NISSAN MOTOR CO., U.S.A.
OK or NG
- OK : Replace reclining motor. Refer to "FRONT SEAT ".
- NG : Repair or replace harness.