Reclining Switch LH Inspection

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

CHECK FUNCTION

With CONSULT-III

With "RECLN SW-FR, RECLN SW-RR" on the DATA MONITOR, operate the reclining switch LH to check ON/OFF operation.

RECLN SW MONITOR ITEM CHART

Monitor item [OPERATION or UNIT]		Contents
RECLN SW-FR	"ON/OFF"	ON/OFF status judged from the reclining switch LH (FR) signal is displayed.
RECLN SW-RR	"ON/OFF"	ON/OFF status judged from the reclining switch LH (RR) signal is displayed.

Without CONSULT-III

Turn ignition switch OFF.

Check voltage between driver seat control unit connector and ground.

VOLTAGE CHART

Connector	Terminal		Condition	Voltage (V) (Approx.)
Connector	(+)	(-)	Condition	Voltage (V) (Approx.)
B401	12	Ground	Reclining switch LH ON (BACKWARD operation)	0
	12		Other than above	Battery voltage
	27		Reclining switch LH ON (FORWARD operation)	0
	27		Other than above	Battery voltage

Fig 1: Checking Voltage Between Driver Seat Control Unit Connector And Ground

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

OK or NG

OK: Reclining switch circuit is OK.

NG: GO TO 2.

CHECK HARNESS CONTINUITY
1. Disconnect driver seat control unit and power seat switch LH.
2. Check continuity between driver seat control unit connector B401 (A) terminals 12, 27 and power seat switch LH connector B408 (B) terminals 3, 4.
  12 - 3: Continuity should exist.
  
  27 - 4: Continuity should exist.
3. Check continuity between driver seat control unit connector B401 (A) terminals 12, 27 and ground.
  12 - Ground: Continuity should not exist.
  
  27 - Ground: Continuity should not exist.
Fig 2: Checking Continuity Between Driver Seat Control Unit Terminals And Power Seat Switch LH Terminals
Courtesy of NISSAN MOTOR CO., U.S.A.

OK or NG

OK: GO TO 3.

NG: Repair or replace harness.

RECLINING SWITCH INSPECTION

Check continuity between power seat switch LH terminals as follows.

RECLINING SWITCH INSPECTION CONTINUITY CHART

Terminal		Condition	Continuity
4	7	Reclining switch LH ON (BACKWARD operation)	Yes
4		Other than above	No
3		Reclining switch LH ON (FORWARD operation)	Yes
3		Other than above	No

Fig 3: Checking Continuity Between Power Seat Switch LH Terminals

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

OK or NG

OK: Check the condition of the harness and connector.

NG: Replace power seat switch LH. Refer to "FRONT SEAT ".