Infiniti M35/M45 Y50. Manual — part 1065

AUTOMATIC DRIVE POSITIONER

SE-57

C

D

E

F

G

H

J

K

L

M

A

B

SE

Check Front Lifting Sensor Circuit

NIS0026F

1.

CHECK FUNCTION

With CONSULT-II

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

Without CONSULT-II

1.

Turn ignition switch OFF.

2.

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

OK or NG

OK

>> Sliding sensor front lifting sensor is OK.

NG

>> GO TO 2.

Monitor item [OPERATION or UNIT]

Contents

LIFT FR PULSE

—

The front lifting position (pulse) judged
from the lifting sensor (front) is dis-
played

PIIA4558E

Sliding
sensor

front lifting

sensor

Terminals

Condition

Signal

(Reference value)

(+)

(–)

B214

25

Ground

Front
lifting
motor
operation

PIIB6153E

PIIA3278E

SE-58

AUTOMATIC DRIVE POSITIONER

2.

CHECK FRONT LIFTING MOTOR SENSOR CIRCUIT HARNESS CONTINUITY

1.

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

2.

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

3.

Check continuity between driver seat control unit connector and
ground.

OK or NG

OK

>> GO TO 3.

NG

>> Repair or replace harness.

3.

CHECK DRIVER SEAT CONTROL UNIT OUTPUT

1.

Connect driver seat control unit connector.

2.

Check voltage between driver seat control unit connector and ground.

OK or NG

OK

>> Replace sliding sensor front lifting sensor.

NG

>> Replace automatic drive positioner control unit.

A

B

Continuity

Driver seat control

unit connector

Terminal

Sliding sensor ·

front lifting sensor

connector

Terminal

B204

25

B214

25

Yes

31

31B

A

Ground

Continuity

Driver seat control unit

connector

Terminal

B204

25

No

31

PIIB6154E

Terminals

Voltage (V)

(Approx.)

(+)

(–)

Driver seat control

unit connector

Terminal

B204

25

Ground

5

PIIB6155E

AUTOMATIC DRIVE POSITIONER

SE-59

C

D

E

F

G

H

J

K

L

M

A

B

SE

Check Rear Lifting Sensor Circuit

NIS0026G

1.

CHECK FUNCTION

With CONSULT-II

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

Without CONSULT-II

1.

Turn ignition switch OFF.

2.

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

OK or NG

OK

>> Rear lifting sensor circuit is OK.

NG

>> GO TO 2.

Monitor item [OPERATION or UNIT]

LIFT RR PULSE

—

The rear lifting position (pulse) judged from
the lifting sensor (rear) is displayed.

PIIA4558E

Driver seat
control unit

connector

Terminals

Condition

Signal

(Reference value)

(+)

(–)

B204

10

Ground

Rear
lifting
motor
operation

PIIB6156E

PIIA3278E

SE-60

AUTOMATIC DRIVE POSITIONER

2.

CHECK REAR LIFTING MOTOR SENSOR CIRCUIT HARNESS CONTINUITY

1.

Disconnect driver seat control unit and rear lifting sensor connector.

2.

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

3.

Check continuity between driver seat control unit connector and
ground.

OK or NG

OK

>> GO TO 3.

NG

>> Repair or replace harness.

3.

CHECK DRIVER SEAT CONTROL UNIT OUTPUT

1.

Connect driver seat control unit connector.

2.

Check voltage between driver seat control unit connector and ground.

OK or NG

OK

>> Replace rear lifting sensor.

NG

>> Replace automatic drive positioner control unit.

A

B

Continuity

Driver seat control

unit connector

Terminal

Rear lifting sensor

connector

Terminal

B204

10

B218

10

Yes

31

31

A

Ground

Continuity

Driver seat control unit

connector

Terminal

B204

10

No

31

PIIB6157E

Terminals

Voltage (V)

(Approx.)

(+)

(–)

Driver seat

control unit

connector

Terminal

B204

10

Ground

5

PIIB6158E