Infiniti QX56 (Z62). Manual - part 457

 

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Infiniti QX56 (Z62). Manual - part 457

 

 

DLN-28

< ECU DIAGNOSIS INFORMATION >

[TRANSFER: ATX90A]

TRANSFER CONTROL UNIT

CAUTION:

When using circuit tester to measure voltage for inspection, be sure not to extend forcibly any con-
nector terminals.

Fail-Safe

INFOID:0000000006222228

• If any malfunction occurs in 4WD electrical system, and control unit detects the malfunction, 4WD warning

lamp on combination meter turns ON to indicate system malfunction.

• When 4WD warning lamp is ON, vehicle changes to rear-wheel drive or shifts to 4-wheel drive (front-wheels

still have some driving torque).

29

(LG/R)

Ground

Hi-Lo position sensor 2

Input/

Output

Engine  
running
(Never 
drive the 
vehicle.)

Always

0 V

30

(R/B)

Ground

Transfer lock position 
sensor (GND)

Always

0  V

31

(L/O)

Ground

Transfer internal speed 
sensor (DIR)

Input

IGN ON

When changing the trans-
fer motor rotation direc-
tion.

32

(BR/R)

Ground

IGN SW

Input

IGN ON

Battery voltage

IGN OFF

0V

35

(R)

Ground

4WD shift SW (4H)

Input

IGN ON

4WD shift switch: 4H

Battery voltage

4WD shift switch: Except 
4H

0 V

36

(L/R)

Ground

Transfer fluid tempera-
ture sensor (GND)

Always

0  V

38

(G/O)

Ground

Transfer lock position 
sensor signal

Input

IGN ON

39

(R/W)

Ground

Transfer internal speed 
sensor power supply

Input

IGN ON

8 V

IGN OFF

0V

41

(W/R)

Ground

Transfer control actuator 
power supply

Input

Always

Battery voltage

43

(G/R)

Ground

Motor drive B

Input/

Output

Transfer motor driving

0V - Battery voltage

44

(B)

Ground

GND

Always

0 V

45

(G/Y)

Ground

Motor drive A

Input/

Output

Transfer motor driving

0V - Battery voltage

46

(B)

Ground

Transfer control actuator 
(GND)

Always

0  V

Terminal No.

(Wire color)

Description

Condition

Value (Approx.)

+

-

Signal name

Input/

Output

JPDIE0269GB

JPDIE0268GB

TRANSFER CONTROL UNIT

DLN-29

< ECU DIAGNOSIS INFORMATION >

[TRANSFER: ATX90A]

C

E

F

G

H

I

J

K

L

M

A

B

DLN

N

O

P

DTC Inspection Priority Chart

INFOID:0000000006222229

If some DTCs are displayed at the same time, perform inspections one by one based on the following priority
chart.

DTC Index

INFOID:0000000006222230

Priority

Detected items (DTC)

1

• U1000 CAN COMM CIRCUIT
• U1010 CONTROL UNIT (CAN)

2

• P1802 CONTROL UNIT 1
• P1803 CONTROL UNIT 2
• P1804 CONTROL UNIT 3
• P1809 CONTROL UNIT 4
• P180C SEN POWER SUPPLY (5V)
• P180E SEN POWER SUPPLY (8V)
• P1811 BATTERY VOLTAGE
• P181B INCOMP SELFSHUT
• P181C MOTOR POWER SUPPLY
• P181F INCOMP CALIBRATION

3

• P1807 VECL SPEED SEN-AT
• P1808 VECL SPEED SEN-ABS
• P1816 PNP SW/CIRC
• P181E ST ANGLE SEN SIG
• P1820 ENGINE SPEED SIG
• P1829 THROTTLE POSI SEN
• P1830 ABS OP SIG
• P1831 VDC OP SIG
• P1832 TCS OP SIG

4

• P180D ROTARY POSITION SEN
• P1813 4WD MODE SW
• P181A MOTOR TEMP SEN
• P1826 OIL TEMP SEN
• P182A HI-LO POSITION SEN
• P182B LOCK POSITION SEN

5

• P180F MOTOR SYSTEM
• P1817 SHIFT ACTUATOR

DTC

Display Items

Reference

P1802

CONTROL UNIT 1

DLN-51, "DTC Logic"

P1803

CONTROL UNIT 2

DLN-51, "DTC Logic"

P1804

CONTROL UNIT 3

DLN-51, "DTC Logic"

P1807

VHCL SPEED SEN-AT

DLN-52, "DTC Logic"

P1808

VHCL SPEED SEN-ABS

DLN-53, "DTC Logic"

P1809

CONTROL UNIT 4

DLN-51, "DTC Logic"

P180C

SEN POWER SUPPLY (5V)

DLN-54, "DTC Logic"

P180D

ROTARY POSITION SEN

DLN-57, "DTC Logic"

P180E

SEN POWER SUPPLY (8V)

DLN-59, "DTC Logic"

P180F

MOTOR SYSTEM

DLN-61, "DTC Logic"

P1811

BATTERY VOLTAGE

DLN-64, "DTC Logic"

P1813

4WD MODE SW

DLN-67, "DTC Logic"

P1816

PNP SW/CIRC

DLN-69, "DTC Logic"

P1817

SHIFT ACTUATOR

DLN-70, "DTC Logic"

P181A

MOTOR TEMP SEN

DLN-72, "DTC Logic"

P181B

IMCOMP SELFSHUT

DLN-74, "DTC Logic"

DLN-30

< ECU DIAGNOSIS INFORMATION >

[TRANSFER: ATX90A]

TRANSFER CONTROL UNIT

P181C

MOTOR POWER SUPPLY

DLN-76, "DTC Logic"

P181E

ST ANGLE SEN SIG

DLN-77, "DTC Logic"

P181F

INCOMP CALIBRATION

DLN-78, "DTC Logic"

P1826

OIL TEMP SEN

DLN-80, "DTC Logic"

P1820

ENGINE SPEED SIG

DLN-79, "DTC Logic"

P1829

THROTTLE POSI SEN

DLN-82, "DTC Logic"

P182A

HI-LO POSITION SEN

DLN-83, "DTC Logic"

P182B

LOCK POSITION SEN

DLN-85, "DTC Logic"

P1830

ABS OP SIG

DLN-88, "DTC Logic"

P1831

VDC OP SIG

DLN-89, "DTC Logic"

P1832

TCS OP SIG

DLN-90, "DTC Logic"

U1000

CAN COMM CIRCUIT

DLN-91, "DTC Logic"

U1010

CONTROL UNIT (CAN)

DLN-92, "DTC Logic"

DTC

Display Items

Reference

4WD SYSTEM

DLN-31

< WIRING DIAGRAM >

[TRANSFER: ATX90A]

C

E

F

G

H

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K

L

M

A

B

DLN

N

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P

WIRING DIAGRAM

4WD SYSTEM

Wiring Diagram

INFOID:0000000006222231

JCDWM1069GB

 

 

 

 

 

 

 

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