Front Lifting Sensor Circuit Check

CHECK FUNCTION

With CONSULT-II

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

MONITOR ITEM CONTENTS

Monitor item [OPERATION or UNIT]		Contents
LIFT FR PULSE	-	The front lifting position (pulse) judged from the lifting sensor (front) is displayed

Fig 1: CONSULT II Display - 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.

DRIVER SEAT CONTROL UNIT CONNECTOR AND GROUND SIGNAL

Sliding sensor front lifting sensor	Terminals		Condition	Signal (Reference value)
Sliding sensor front lifting sensor	(+)	(-)	Condition	Signal (Reference value)
B214	25	Ground	Front lifting motor operation

Fig 2: Identifying Signal Between Driver Seat Control Unit Connector And Ground, With Oscilloscope

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

OK or NG

OK: Sliding sensor front lifting sensor is OK.

NG: GO TO 2.

CHECK FRONT LIFTING MOTOR SENSOR CIRCUIT HARNESS CONTINUITY

Disconnect driver seat control unit and sliding sensor front lifting sensor connector.

Check continuity between driver seat control unit connector and sliding sensor front lifting sensor connector.

DRIVER SEAT CONTROL UNIT CONNECTOR AND SLIDING SENSOR FRONT LIFTING SENSOR CONNECTOR CONTINUITY

A		B		Continuity
Driver seat control unit connector	Terminal	Sliding sensor front lifting sensor connector	Terminal	Continuity
B204	25	B214	25	Yes
B204	31	B214	31B	Yes

Check continuity between driver seat control unit connector and ground.

DRIVER SEAT CONTROL UNIT CONNECTOR AND GROUND CONTINUITY

A		Ground	Continuity
Driver seat control unit connector	Terminal
B204	25		No
	31

Fig 3: Identifying Continuity Between Driver Seat Control Unit Connector And Sliding Sensor Front Lifting Sensor Connector

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

OK or NG

OK: GO TO 3.

NG: Repair or replace harness.

CHECK DRIVER SEAT CONTROL UNIT OUTPUT

DRIVER SEAT CONTROL UNIT CONNECTOR AND GROUND VOLTAGE

Terminals			Voltage (V) (Approx.)
(+)		(-)
Driver seat control unit connector	Terminal	(-)
B204	25	Ground	5

Fig 4: Identifying Voltage Between Driver Seat Control Unit Connector And Ground

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

OK or NG

OK: Replace sliding sensor front lifting sensor.

NG: Replace automatic drive positioner control unit.