Infiniti QX56 (JA60). Manual - part 14

 

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Infiniti QX56 (JA60). Manual - part 14

 

 

POWER SUPPLY AND GROUND CIRCUIT

ADP-47

< COMPONENT DIAGNOSIS >

C

D

E

F

G

H

I

K

L

M

A

B

ADP

N

O

P

Check continuity between BCM harness connector and ground.

Does continuity exist?

YES

>> Inspection End.

NO

>> Repair or replace harness.

DRIVER SEAT CONTROL UNIT
DRIVER SEAT CONTROL UNIT : Diagnosis Procedure

INFOID:0000000005147478

NOTE:

Do not disconnect the battery negative terminal and the driver seat control unit connector until DTC is con-

firmed with CONSULT-III.

Regarding Wiring Diagram information, refer to 

ADP-119, "Wiring Diagram"

.

1.

 CHECK POWER SUPPLY CIRCUIT 

1. Turn ignition switch OFF.

2. Disconeect driver seat control unit.

3. Check voltage between driver seat control unit harness connec-

tor and ground.

Is the inspection result normal?

YES

>> GO TO 2

NO

>> Check the following.

• Repair or replace harness between driver seat control unit and fuse block (J/B).

• Circuit breaker.

2.

 CHECK GROUND CIRCUIT

Check continuity between the driver seat control unit harness con-

nector and ground.

Is the inspection result normal?

YES

>> Driver seat control unit power supply and ground circuit

are OK.

BCM

Ground

Continuity

Connector

Terminal

M20

67

Yes

LIIA0915E

Terminals

Power 

source

Condition

Voltage (V)

(Approx.)

(+)

(–)

Driver seat 
control unit 

connector

Terminal

B202

6

Ground

START 

power sup-

ply

Ignition 

switch 

START

Battery 
voltage

B203

33

Battery 

power sup-

ply

Ignition 

switch 

OFF

40

LIIA1897E

Driver seat control unit

connector

Terminal

Ground

Continuity

B202

32

Yes

B203

48

PIIA4542E

ADP-48

< COMPONENT DIAGNOSIS >

POWER SUPPLY AND GROUND CIRCUIT

NO

>> Repair or replace harness.

DRIVER SEAT CONTROL UNIT : Special Repair Requirement

INFOID:0000000005147479

1.

 PERFORM ADDITIONAL SERVICE

Perform additional service when removing battery negative terminal.

>> Refer to Owner’s Manual.

AUTOMATIC DRIVE POSITIONER CONTROL UNIT
AUTOMATIC DRIVE POSITIONER CONTROL UNIT : Diagnosis Procedure

INFOID:0000000005147480

NOTE:

Do not disconnect the battery negative terminal and the driver seat control unit connector until DTC is con-

firmed with CONSULT-III.

Regarding Wiring Diagram information, refer to 

ADP-138, "Wiring Diagram"

.

1.

 CHECK POWER SUPPLY CIRCUIT

1. Turn ignition switch OFF.

2. Disconnect automatic drive positioner control unit.

3. Check voltage between automatic drive positioner control unit

harness connector and ground.

Is the inspection result normal?

YES

>> GO TO 2

NO

>> Repair or replace harness.

2.

 CHECK GROUND CIRCUIT

Check continuity between the automatic drive positioner control unit

harness connector and ground.

Is the inspection result normal?

YES

>> Automatic drive positioner control unit power supply and

ground circuit are OK.

NO

>> Repair or replace harness.

AUTOMATIC DRIVE POSITIONER CONTROL UNIT : Special Repair Requirement

INFOID:0000000005147481

1.

 PERFORM ADDITIONAL SERVICE

Perform additional service when removing battery negative terminal.

Terminals

Voltage (V)

(Approx.)

(+)

(–)

Automatic drive positioner 

control unit connector

Terminal

M34

34

Ground

Battery voltage

39

PIIA4543E

Automatic drive positioner 

control unit connector

Terminal

Ground

Continuity

M34

40

Yes

48

PIIA4544E

POWER SUPPLY AND GROUND CIRCUIT

ADP-49

< COMPONENT DIAGNOSIS >

C

D

E

F

G

H

I

K

L

M

A

B

ADP

N

O

P

>> Refer to Owner’s Manual.

ADP-50

< COMPONENT DIAGNOSIS >

SLIDING SWITCH

SLIDING SWITCH

Description

INFOID:0000000005147482

Sliding switch is equipped to the power seat switch LH on the seat cushion trim cover. The operation signal is

input to the driver seat control unit when the sliding switch is operated.

Component Function Check

INFOID:0000000005147483

1.

 CHECK FUNCTION

1. Select “SLIDE SW-FR”, “SLIDE SW-RR” in “Data monitor” mode with CONSULT-III. 

2. Check sliding switch signal under the following conditions.

Is the indication normal?

YES

>> Inspection End.

NO

>> Perform diagnosis procedure. Refer to 

ADP-50, "Diagnosis Procedure"

.

Diagnosis Procedure

INFOID:0000000005147484

Regarding Wiring Diagram information, refer to 

ADP-119, "Wiring Diagram"

.

1.

 CHECK SLIDING SWITCH SIGNAL

1. Turn ignition switch OFF.

2. Check voltage between driver seat control unit harness connec-

tor and ground.

Is the inspection result normal?

YES

>> GO TO 5

NO

>> GO TO 2

2.

 CHECK SLIDING SWITCH CIRCUIT

Monitor item

Condition

Status

SLIDE SW-FR

Sliding switch (forward)

Operate

ON

Release

OFF

SLIDE SW-RR

Sliding switch (backward)

Operate

ON

Release

OFF

Driver seat control 

unit connector

Terminals

Condition

Voltage (V)

(Approx.)

(+)

(–)

B202

11

Ground

Sliding 

switch

Operate 

(backward)

0

Release

Battery 
voltage

26

Operate 

(forward)

0

Release

Battery 
voltage

PIIA4577E

 

 

 

 

 

 

 

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