Infiniti QX56 (Z62). Manual - part 26

TILT SENSOR

ADP-97

< DTC/CIRCUIT DIAGNOSIS >

C

D

E

F

G

H

I

K

L

M

A

B

ADP

N

O

P

TILT SENSOR

Component Function Check

INFOID:0000000006248394

1.

CHECK FUNCTION

1.

Select “TILT PULSE” in “Data monitor” mode with CONSULT-III.

2.

Check tilt sensor signal under the following conditions.

*1

 : The value at the seat position attained when the battery is connected is considered to be 32768.

Is the indication normal?

YES

>> INSPECTION END

NO

>> Perform diagnosis procedure. Refer to 

ADP-97, "Diagnosis Procedure"

.

Diagnosis Procedure

INFOID:0000000006248395

1.

CHECK TILT SENSOR SIGNAL

1.

Turn ignition switch ON.

2.

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

Is the inspection result normal?

YES

>> Replace driver seat control unit.

NO

>> GO TO 2.

2.

CHECK TILT SENSOR CIRCUIT

1.

Turn ignition switch OFF.

2.

Disconnect driver seat control unit connector and tilt motor connector.

3.

Check continuity between driver seat control unit harness connector and tilt motor harness connector.

4.

Check continuity between driver seat control unit harness connector and ground.

Monitor item

Condition

Value

TILT PULSE

Steering column

Operate (up)

Change (increase)

*1

Operate (down)

Change (decrease)

*1

Release

No change

*1

(+)

(-)

Condition

Voltage (V)

(Approx.)

Driver seat control unit

Connector

Terminals

B452

21

Ground

Steering col-
umn

Operate

Other than the 
above

0 or 5

JMJIA0119ZZ

Driver seat control unit

Tilt motor

Continuity

Connector

Terminal

Connector

Terminal

B452

21

M116

5

Existed

Driver seat control unit

Ground

Continuity 

Connector

Terminal

B452

21

Not existed

ADP-98

< DTC/CIRCUIT DIAGNOSIS >

TILT SENSOR

Is the inspection result normal?

YES

>> GO TO 3.

NO

>> Repair or replace harness or connector.

3.

CHECK TILT SENSOR POWER SUPPLY

1.

Turn ignition switch ON.

2.

Check voltage between tilt motor harness connector and ground.

Is the inspection result normal?

YES

>> GO TO 5.

NO

>> GO TO 4.

4.

CHECK TILT SENSOR POWER SUPPLY CIRCUIT 

1.

Turn ignition switch OFF.

2.

Disconnect automatic drive positioner control unit connector.

3.

Check continuity between automatic drive positioner control unit harness connector and tilt motor harness
connector.

4.

Check continuity between automatic drive positioner control unit harness connector and ground.

Is the inspection result normal?

YES

>> Replace automatic drive positioner control unit.

NO

>> Repair or replace harness or connector.

5.

CHECK TILT SENSOR GROUND CIRCUIT

1.

Turn ignition switch OFF.

2.

Disconnect automatic drive positioner control unit connector.

3.

Check continuity between automatic drive positioner control unit harness connector and tilt motor harness
connector.

4.

Check continuity between automatic drive positioner control unit harness connector and ground.

Is the inspection result normal?

YES

>> Replace tilt motor.

NO

>> Repair or replace harness or connector.

(+)

(-)

Voltage (V)

(Approx.)

Tilt motor

Connector

Terminals

M116

4

Ground

12

Automatic drive positioner control unit

Tilt motor

Continuity

Connector

Terminal

Connector

Terminal

M104

27

M116

4

Existed

Automatic drive positioner control unit

Ground

Continuity 

Connector

Terminal

M104

27

Not existed

Automatic drive positioner control unit

Tilt motor

Continuity

Connector

Terminal

Connector

Terminal

M75

20

M116

6

Existed

Automatic drive positioner control unit

Ground

Continuity

Connector

Terminal

M75

20

Not existed

TELESCOPIC SENSOR

ADP-99

< DTC/CIRCUIT DIAGNOSIS >

C

D

E

F

G

H

I

K

L

M

A

B

ADP

N

O

P

TELESCOPIC SENSOR

Component Function Check

INFOID:0000000006248396

1.

CHECK FUNCTION

1.

Select “TELESCO PULSE” in “Data monitor” mode with CONSULT-III. 

2.

Check telescopic sensor signal under the following conditions.

*1 

: The value at the seat position attained when the battery is connected is considered to be 32768.

Is the indication normal?

YES

>> INSPECTION END

NO

>> Perform diagnosis procedure. Refer to 

ADP-99, "Diagnosis Procedure"

.

Diagnosis Procedure

INFOID:0000000006248397

1.

CHECK TELESCOPIC SENSOR SIGNAL

1.

Turn ignition switch ON.

2.

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

Is the inspection result normal?

YES

>> Replace driver seat control unit.

NO

>> GO TO 2.

2.

CHECK TELESCOPIC SENSOR CIRCUIT

1.

Turn ignition switch OFF.

2.

Disconnect driver seat control unit connector and telescopic motor connector.

3.

Check continuity between driver seat control unit harness connector and telescopic motor harness con-
nector.

4.

Check continuity between driver seat control unit harness connector and ground.

Monitor item

Condition

Value

TELESCO PULSE

Steering column

Operate (forward)

Change (increase)

*1

Operate (backward)

Change (decrease)

*1

Release

No change

*1

(+)

(-)

Condition

Voltage (V)

(Approx.)

Driver seat control unit

Connector

Terminals

B452

5

Ground

Steering col-
umn

Operate

Other than the 
above

0 or 5

JMJIA0119ZZ

Driver seat control unit

Telescopic motor

Continuity

Connector

Terminal

Connector

Terminal

B452

5

M117

5

Existed

ADP-100

< DTC/CIRCUIT DIAGNOSIS >

TELESCOPIC SENSOR

Is the inspection result normal?

YES

>> GO TO 3.

NO

>> Repair or replace harness or connector.

3.

CHECK TELESCOPIC SENSOR POWER SUPPLY

1.

Turn ignition switch ON.

2.

Check voltage between telescopic motor harness connector and ground.

Is the inspection result normal?

YES

>> GO TO 5.

NO

>> GO TO 4.

4.

CHECK TELESCOPIC SENSOR POWER SUPPLY CIRCUIT 

1.

Turn ignition switch OFF.

2.

Disconnect automatic drive positioner control unit connector.

3.

Check continuity between automatic drive positioner control unit harness connector and telescopic motor
harness connector.

4.

Check continuity between automatic drive positioner control unit harness connector and ground.

Is the inspection result normal?

YES

>> Replace automatic drive positioner control unit.

NO

>> Repair or replace harness or connector.

5.

CHECK TELESCOPIC SENSOR GROUND CIRCUIT

1.

Turn ignition switch OFF.

2.

Disconnect automatic drive positioner control unit connector.

3.

Check continuity between automatic drive positioner control unit harness connector and telescopic motor
harness connector.

4.

Check continuity between automatic drive positioner control unit harness connector and ground.

Is the inspection result normal?

Driver seat control unit

Ground

Continuity 

Connector

Terminal

B452

5

Not existed

(+)

(-)

Voltage (V)

(Approx.)

Telescopic motor

Connector

Terminals

M117

4

Ground

12

Automatic drive positioner control unit

Telescopic motor

Continuity

Connector

Terminal

Connector

Terminal

M104

27

M117

4

Existed

Automatic drive positioner control unit

Ground

Continuity 

Connector

Terminal

M104

27

Not existed

Automatic drive positioner control unit

Telescopic motor

Continuity

Connector

Terminal

Connector

Terminal

M75

20

M117

6

Existed

Automatic drive positioner control unit

Ground

Continuity

Connector

Terminal

M75

20

Not existed