Reclining Sensor Circuit Inspection

WARNING: This page is about a different car, the 2006 Nissan Titan. 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.

CONSULT-II FUNCTION

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

Without CONSULT-II

Turn ignition switch OFF.

Check signal between driver seat control unit connector and ground, with oscilloscope.

CONSULT-II FUNCTION

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

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 Reclining Motor Sensor Circuit Harness Continuity
OK or NG

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

NG : Repair or replace harness.