Reclining Sensor Circuit Inspection

WARNING: This page is about a different car, the 2005 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.

RECLINING SENSOR OPERATION REFERENCE

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

Fig 1: CONSULT-II - Identifying "RECLN PULSE" On 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.

Fig 2: Driver Seat Control Unit Connector P2 Terminal 9 Signal Specifications

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

Fig 3: Checking 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 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 (L/R) - 1 (L/R): Continuity should exist.
  - 31 (L/Y) - 2 (L/Y): Continuity should exist.
3. Check continuity between driver seat control unit connector P2 terminals 9, 31 and ground.
  - 9 (L/R) - Ground: Continuity should not exist.
  - 31 (L/Y) - Ground: Continuity should not exist.
  Fig 4: Checking Continuity Between Driver Seat Control Unit Connector P2 Terminals 9, 31 And Reclining Motor LH Connector P5 Terminals 1 And 2
  Courtesy of NISSAN MOTOR CO., U.S.A.
OK or NG
- OK: Replace reclining motor.
- NG: Repair or replace harness.