Infiniti QX56 (Z62). Manual - part 29

RECLINING MOTOR

ADP-109

< DTC/CIRCUIT DIAGNOSIS >

C

D

E

F

G

H

I

K

L

M

A

B

ADP

N

O

P

Is the inspection result normal?

YES

>> Replace driver seat control unit.

NO

>> Repair or replace harness or connector.

Driver seat control unit

Ground

Continuity 

Connector

Terminal

B451

35

Not existed

39

ADP-110

< DTC/CIRCUIT DIAGNOSIS >

LIFTING MOTOR (FRONT)

LIFTING MOTOR (FRONT)

Component Function Check

INFOID:0000000006248406

1.

CHECK FUNCTION

1.

Select “SEAT LIFTER FR” in “Active test” mode with CONSULT-III.

2.

Check the lifting motor (front) operation.

Is the operation of relevant parts normal? 

YES

>> INSPECTION END

NO

>> Perform diagnosis procedure. Refer to 

ADP-110, "Diagnosis Procedure"

.

Diagnosis Procedure

INFOID:0000000006248407

1.

CHECK LIFTING MOTOR (FRONT) INPUT SIGNAL

1.

Turn ignition switch OFF.

2.

Disconnect lifting motor (front) connector.

3.

Turn ignition switch ON.

4.

Perform “Active test” (“SEAT LIFTER FR”) with CONSULT-III.

5.

Check voltage between lifting motor (front) harness connector and ground.

Is the inspection result normal?

YES

>> Replace lifting motor (front) (built in seat cushion frame).

NO

>> GO TO 2.

2.

CHECK LIFTING MOTOR (FRONT) CIRCUIT

1.

Turn ignition switch OFF.

2.

Disconnect driver seat control unit connector.

3.

Check continuity between driver seat control unit harness connector and lifting motor (front) harness con-
nector.

4.

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

Test item

Description

SEAT LIFTER FR

OFF

Seat lifting (front)

Stop

UP

Upward

DWN

Downward

(+)

(-)

Condition

Voltage (V)

(Approx.)

Lifting motor (front)

Connector

Terminals

B455

36

Ground

SEAT LIFTER FR

OFF

0

UP

0

DWN (down)

12

40

OFF

0

UP

12

DWN (down)

0

Driver seat control unit

Lifting motor (front)

Continuity

Connector

Terminal

Connector

Terminal

B451

36

B455

36

Existed

40

40

LIFTING MOTOR (FRONT)

ADP-111

< DTC/CIRCUIT DIAGNOSIS >

C

D

E

F

G

H

I

K

L

M

A

B

ADP

N

O

P

Is the inspection result normal?

YES

>> Replace driver seat control unit.

NO

>> Repair or replace harness or connector.

Driver seat control unit

Ground

Continuity 

Connector

Terminal

B451

36

Not existed

40

ADP-112

< DTC/CIRCUIT DIAGNOSIS >

LIFTING MOTOR (REAR)

LIFTING MOTOR (REAR)

Component Function Check

INFOID:0000000006248408

1.

CHECK FUNCTION

1.

Select “SEAT LIFTER RR” in “Active test” mode with CONSULT-III.

2.

Check the lifting motor (rear) operation.

Is the operation of relevant parts normal?

YES

>> INSPECTION END

NO

>> Perform diagnosis procedure. Refer to 

ADP-112, "Diagnosis Procedure"

.

Diagnosis Procedure

INFOID:0000000006248409

1.

CHECK LIFTING MOTOR (REAR) INPUT SIGNAL

1.

Turn ignition switch OFF.

2.

Disconnect lifting motor (rear) connector.

3.

Turn ignition switch ON.

4.

Perform “Active test” (“SEAT LIFTER RR”) with CONSULT-III

5.

Check voltage between lifting motor (rear) harness connector and ground.

Is the inspection result normal?

YES

>> Replace lifting motor (rear) (built in seat cushion frame).

NO

>> GO TO 2.

2.

CHECK LIFTING MOTOR (REAR) CIRCUIT

1.

Turn ignition switch OFF.

2.

Disconnect driver seat control unit connector.

3.

Check continuity between driver seat control unit harness connector and lifting motor (rear) harness con-
nector.

4.

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

Test item

Description

SEAT LIFTER RR

OFF

Seat lifting (rear)

Stop

UP

Upward

DWN

Downward

(+)

(-)

Condition

Voltage (V)

(Approx.)

Lifting motor (rear)

Connector

Terminals

B456

41

Ground

SEAT LIFTER RR

OFF

0

UP

12

DWN (DOWN)

0

42

OFF

0

UP

0

DWN (DOWN)

12

Driver seat control unit

Lifting motor (rear)

Continuity

Connector

Terminal

Connector

Terminal

B451

41

B456

41

Existed

42

42