Check Reclining Sensor Circuit

CHECK FUNCTION

With CONSULT-III

Check operation with "RECLN PULSE" on the DATA MONITOR to make sure the pulse changes.

MONITOR ITEM REFERENCE

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

Without CONSULT-III

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

TERMINAL CONDUCTION CHART

Driver seat control unit connector	Terminals		Condition	Signal (Reference value)
Driver seat control unit connector	(+)	(-)	Condition	Signal (Reference value)
B204	9	Ground	Reclining motor operation	Courtesy of NISSAN MOTOR CO., U.S.A.

OK or NG

OK: Reclining sensor circuit is OK.

NG: GO TO 2.

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

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

CHECK RECLINING MOTOR SENSOR CIRCUIT HARNESS CONTINUITY

Check continuity between driver seat control unit connector and reclining sensor connector.

CONTINUITY CHART

A		B		Continuity
Driver seat control unit connector	Terminal	Reclining sensor connector	Terminal	Continuity
B204	9	B222	9	Yes
B204	31	B222	31	Yes

Fig 2: Checking Continuity Between Driver Seat Control Unit Connector And Reclining Sensor Connector And Ground

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

Check continuity between driver seat control unit connector and ground.

CONTINUITY CHART

A		Ground	Continuity
Driver seat control unit connector	Terminal
B204	9		No
	31

OK or NG

OK: GO TO 3.

NG: Repair or replace harness.

CHECK DRIVER SEAT CONTROL UNIT OUTPUT

Check voltage between driver seat control unit connector and ground.

VOLTAGE SPECIFICATION

Terminals			Voltage (V) (Approx.)
(+)		(-)
Driver seat control unit connector	Terminal	(-)
B204	9	Ground	5

Fig 3: Checking Voltage Between Driver Seat Control Unit Connector And Ground

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

OK or NG

OK: Replace reclining sensor.

NG: Replace automatic drive positioner control unit.