Reclining Motor LH Circuit Inspection

WARNING: This page is about a different car, the 2008 Nissan Quest. However, it is still accessible from the selected car via links, so may be relevant.

CHECK SEAT RECLINING MECHANISM
Check the following.
- Operation malfunction caused by an interference with the center pillar or center console
- Operation malfunction and interference with other parts by poor installation
OK or NG

OK: GO TO 2.

NG: Repair the malfunctioning part and check again.

CHECK FUNCTION

With CONSULT-III

Check operation with "SEAT RECLINING" in ACTIVE TEST.

ACTIVE TEST REFERENCE

Test item	Description
SEAT RECLINING	The reclining motor LH is activated by receiving the drive signal.

Without CONSULT-III

GO TO 3.

OK or NG

OK: Reclining motor LH circuit is OK.

NG: GO TO 3.

CHECK RECLINING MOTOR CIRCUIT HARNESS CONTINUITY
1. Turn ignition switch OFF.
2. Disconnect driver seat control unit and reclining motor LH.
3. Check continuity between driver seat control unit connector B402 (A) terminals 36, 44 and reclining motor LH connector B404 (B) terminals 3, 4.
  36 - 4 : Continuity should exist.
  
  44 - 3 : Continuity should exist.
4. Check continuity between driver seat control unit connector B402 (A) terminals 36, 44 and ground.
  36 - Ground : Continuity should not exist.
  
  44 - Ground : Continuity should not exist.
  
  Fig 1: Checking Continuity Between Driver Seat Control Unit Connector Terminals And Ground
  Courtesy of NISSAN MOTOR CO., U.S.A.
OK or NG

OK: GO TO 4.

NG: Repair or replace harness.

CHECK DRIVER SEAT CONTROL UNIT OUTPUT SIGNAL

Connect the driver seat control unit and reclining motor LH.

Check voltage between driver seat control unit connector and ground.

TERMINALS VOLTAGE CHART

Connector	Terminals		Condition	Voltage (V) (Approx.)
Connector	(+)	(-)	Condition	Voltage (V) (Approx.)
B402	36	Ground	Reclining switch ON (FORWARD operation)	Battery voltage
	36		Other than above	0
	44		Reclining switch ON (BACKWARD operation)	Battery voltage
	44		Other than above	0

OK or NG

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

NG: Replace driver seat control unit. Refer to "FRONT SEAT ".

Fig 2: Checking Voltage Between Driver Seat Control Unit Connector And Ground

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