Check Rear Lifting Sensor Circuit

CHECK FUNCTION

With CONSULT-II

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

DATA MONITOR CONTENTS CHART

Monitor item [OPERATION or UNIT]
LIFT RR PULSE	-	The rear lifting position (pulse) judged from the lifting sensor (rear) is displayed.

Fig 1: CONSULT II Display - DATA MONITOR

Without CONSULT-II

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

CONNECTOR TERMINAL SIGNAL SPECIFICATION

Driver seat control unit connector	Terminals		Condition	Signal (Reference value)
Driver seat control unit connector	(+)	(-)	Condition	Signal (Reference value)
B204	10	Ground	Rear lifting motor operation

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

OK or NG

OK: Rear lifting sensor circuit is OK.

NG: GO TO 2.

CHECK REAR LIFTING MOTOR SENSOR CIRCUIT HARNESS CONTINUITY

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

CONTINUITY SPECIFICATION

A		B		Continuity
Driver seat control unit connector	Terminal	Rear lifting sensor connector	Terminal	Continuity
B204	10	B218	10	Yes
B204	31	B218	31	Yes

Check continuity between driver seat control unit connector and ground.

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

CONTINUITY SPECIFICATION

A		Ground	Continuity
Driver seat control unit connector	Terminal
B204	10		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	10	Ground	5

OK or NG

OK: Replace rear lifting sensor.

NG: Replace automatic drive positioner control unit.

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