Infiniti Q45. Manual - part 825

AUTOMATIC DRIVE POSITIONER

SE-55

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4. 

CHECK DRIVER SEAT CONTROL UNIT OUTPUT SIGNAL

1.

Connect the driver seat control unit connector and sliding motor connector.

2.

Check voltage between the driver seat control unit connector.

OK or NG

OK

>> Replace sliding motor.

NG

>> Replace driver seat control unit.

Check Reclining Motor Circuit

NIS0012R

1. 

CHECK SEAT RECLINING MECHANISM

Check following.

●

Operation malfunction caused by an interference with the center pillar or center console

●

Operation malfunction and interference with other parts by poor installation

OK or NG

OK

>> GO TO 2.

NG

>> Repair the malfunction part and check again.

2. 

CHECK FUNCTIONAL

With CONSULT-II

Check operation with "SEAT RECLINING" in ACTIVE TEST. 

Without CONSULT-II

Perform the self-diagnosis. Refer to 

SE-50, "ON BOARD DIAGNOSIS FOR AUTOMATIC DRIVE POSI-

TIONER"

 .

OK or NG

OK

>> System is OK.

NG

>> GO TO 3.

Connector

Terminals 

(Wire color)

Condition

Voltage (V) 

(Approx.)

(+)

(–)

B142

1 (W)

Ground

Sliding switch
(forward operation)

Battery voltage

Sliding switch OFF

0

8 (BR)

Sliding switch
(backward operation)

Battery voltage

Sliding switch OFF

0

PIIA4895E

Test item

Description

SEAT
RECLINING

The reclining motor is activated by receiving the drive signal.

PIIA0268E

SE-56

AUTOMATIC DRIVE POSITIONER

3. 

CHECK HARNESS CONTINUITY

1.

Turn ignition switch OFF. 

2.

Disconnect driver seat control unit connector and reclining motor connector.

3.

Check continuity between driver seat control unit connector B142 terminals 2, 9 and reclining motor con-
nector B147 terminals 2, 9.

4.

Check continuity between driver seat control unit connector
B142 terminals 2, 9 and ground.

OK or NG

OK

>> GO TO 4.

NG

>> Repair or replace harness between driver seat control

unit and reclining motor.

4. 

CHECK DRIVER SEAT CONTROL UNIT OUTPUT SIGNAL

1.

Connect the driver seat control unit and reclining motor connector.

2.

Check voltage between driver seat control unit connector.

OK or NG

OK

>> Replace reclining motor.

NG

>> Replace driver seat control unit.

Check Front Lifting Motor Circuit

NIS0012S

1. 

CHECK FRONT LIFTING MECHANISM

Check the following.

●

Operation malfunction caused by lifter mechanism deformation or pinched harness or other foreign mate-
rials

●

Operation malfunction caused by foreign materials adhered to the lifter motor or lead screws

●

Operation malfunction and interference with other parts by installation

OK or NG

OK

>> GO TO 2.

NG

>> Repair the malfunctioning part and check again.

2 (G) – 2 (G)

: Continuity should exist.

9 (LG) – 9 (LG)

: Continuity should exist.

2 (G) – Ground

:Continuity should not exist.

9 (LG) – Ground

:Continuity should not exist.

PIIA2923E

Connector

Terminals 

(Wire color)

Condition

Voltage (V) 

(Approx.)

(+)

(–)

B142

2 (G)

Ground

Reclining switch
(forward operation)

Battery voltage

Reclining switch OFF

0

9 (LG)

Reclining switch
(backward operation)

Battery voltage

Reclining switch OFF

0

PIIA4896E

AUTOMATIC DRIVE POSITIONER

SE-57

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2. 

CHECK FUNCTION

With CONSULT-II

Check operation with "SEAT LIFTER FR" in ACTIVE TEST.

Without CONSULT-II

Perform the on-board diagnosis. Refer to 

SE-50, "ON BOARD DIAGNOSIS FOR AUTOMATIC DRIVE POSI-

TIONER"

 .

OK or NG

OK

>> System is OK.

NG

>> GO TO 3.

3. 

CHECK HARNESS CONTINUITY

1.

Turn ignition switch OFF.

2.

Disconnect driver seat control unit connector and front lifting motor connector.

3.

Check continuity between driver seat control unit connector B142 and terminals 10, 11 and front lifting
motor connector B148 terminals 10, 11.

4.

Check continuity between driver seat control unit connector
B142 and terminals 10, 11 and ground.

OK or NG

OK

>> GO TO 4.

NG

>> Repair or replace harness between driver seat control

unit and front lifting motor.

Test item

Description

SEAT
LIFTER FR

The front end lifter motor is activated by receiving the drive signal.

PIIA0271E

10 (OR) – 10 (OR)

: Continuity should exist.

11 (P) – 11 (P)

: Continuity should exist.

10 (OR) – Ground

:Continuity should not exist.

11 (P) – Ground

:Continuity should not exist.

PIIA2925E

SE-58

AUTOMATIC DRIVE POSITIONER

4. 

CHECK DRIVER SEAT CONTROL UNIT OUTPUT SIGNAL

1.

Connect the driver seat control unit connector and front lifting motor connector.

2.

Check voltage between driver seat control unit connector.

OK or NG

OK

>> Replace front lifting motor.

NG

>> Replace driver seat control unit.

Check Rear Lifting Motor Circuit

NIS0012T

1. 

CHECK REAR LIFTING MECHANISM

Check following items.

●

Operation malfunction caused by lifter mechanism deformation or pinched harness or other foreign mate-
rials

●

Operation malfunction caused by foreign materials adhered to the lifter motor or lead screws

●

Operation malfunction and interference with other parts by poor installation

OK or NG

OK

>> GO TO 2.

NG

>> Repair the malfunctioning part and check again.

2. 

CHECK FUNCTION

 With CONSULT-II

Check operation with "SEAT LIFTER RR" in ACTIVE TEST.

 Without CONSULT-II

Perform the on-board diagnosis. Refer to 

SE-50, "ON BOARD DIAGNOSIS FOR AUTOMATIC DRIVE POSI-

TIONER"

 .

OK or NG

OK

>> System is OK.

NG

>> GO TO 3.

Connector

Terminals

 (Wire color)

Condition

Voltage (V) 

(Approx.)

(+)

(–)

B142

10 (OR)

Ground

Front end lifting switch
(DOWN operation)

Battery voltage

Front end lifting switch OFF

0

11 (P)

Front end lifting switch
(UP operation)

Battery voltage

Front end lifting switch OFF

0

PIIA4897E

Test item

Description

SEAT LIFTER
RR

The rear end lifter motor is activated by receiving the drive signal.

PIIA0274E