Infiniti QX56 (Z62). Manual - part 452

DLN-8

< PREPARATION >

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PREPARATION

PREPARATION

PREPARATION

Special Service Tools

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The actual shapes of Kent-Moore tools may differ from those of special service tools illustrated here.

Commercial Service Tools

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Tool number
(Kent-Moore No.)
Tool name

Description

ST30701000
(J-25742-2)
Drift
a: 61.5 mm (2.421 in) dia.
b: 41 mm (1.61 in) dia.

Removing dust shield from companion flange

KV40104710
(

—

)

Drift
a: 76.3 mm (3.004 in) dia.
b: 67.9 mm (2.673 in) dia.

• Installing rear oil seal
• Installing input oil seal

KV10119400
(

—

)

Spline socket

• Installing transfer control actuator
• Installing transfer rotary position sensor

ZZA1000D

ZZA1003D

ZZA1205D

Tool name

Description

Puller

• Removing dust shield from shaft flange
• Removing dust shield from companion 

flange

Replacer

• Removing dust shield from shaft flange
• Removing dust shield from companion 

flange

ZZA0119D

ZZA0700D

PREPARATION

DLN-9

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Drift
a: 63 mm (2.48 in) dia.
b: 59 mm (2.32 in) dia.

Installing front oil seal

Power tool

Loosening bolts and nuts

Tool name

Description

ZZA1003D

PBIC0190E

DLN-10

< SYSTEM DESCRIPTION >

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COMPONENT PARTS

SYSTEM DESCRIPTION

COMPONENT PARTS

Component Parts Location

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1.

ECM
Refer to 

EC-16, "Component Parts 

Location"

.

2.

ABS actuator and electric unit (con-
trol unit)
Refer to 

BRC-10, "Component Parts 

Location"

.

3.

Steering angle sensor
Refer to 

BRC-10, "Component Parts 

Location"

.

4.

Control valve & TCM
Refer to 

TM-10, "A/T CONTROL 

SYSTEM : Component Parts Loca-
tion"

.

5.

Transfer control unit

6.

4WD switch assembly

7.

Transfer lock position sensor

8.

Transfer Hi-Lo position sensor

9.

Transfer rotary position sensor

10.

Transfer control actuator

11.

Transfer fluid temperature sensor

A.

Back of glove box assembly

B.

4WD indicator lamp, 4WD warning 
lamp, ATP warning lamp (in combina-
tion meter)

C.

Console assembly

D.

Transfer assembly upper side

E.

Transfer assembly under side

JPDIE0270GB

COMPONENT PARTS

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Component Description

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Transfer Control Unit

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• Transfer control unit operates transfer control actuator, 4WD warning lamp and 4WD mode indicator lamp

according to input signal from 4WD shift switch and each sensor and control unit.

• When 4WD system is malfunctioning, 4WD warning lamp turns ON and fail-safe status activates.
• When protection is necessary, 4WD warning lamp blinks and protection status activates.

Transfer Control Actuator

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Transfer control actuator integrates transfer motor, transfer internal position sensor, and transfer motor tem-
perature sensor, and switches 4WD mode (AUTO

⇔

4H

⇔

4L).

TRANSFER MOTOR

Transfer motor operates according to signal from transfer control unit and switches 4WD mode
(AUTO

⇔

4H

⇔

4L). It also performs front and rear distribution of traction force during AUTO mode.

TRANSFER INTERNAL SPEED SENSOR

Transfer internal speed sensor detects rotation status of transfer motor and transmits signal to transfer control
unit.

TRANSFER MOTOR TEMPERATURE SENSOR

• Transfer motor temperature sensor measures temperature of transfer motor.

Component parts

Reference/Function

Transfer control unit

DLN-11, "Transfer Control Unit"

Transfer control actua-
tor

Transfer motor

DLN-11, "Transfer Control Actuator"

Transfer internal speed 
sensor

DLN-11, "Transfer Control Actuator"

Transfer motor temper-
ature sensor

DLN-11, "Transfer Control Actuator"

Transfer Hi-Lo position sensor

DLN-12, "Transfer Hi-Lo Position Sensor"

Transfer rotary position sensor

DLN-12, "Transfer Rotary Position Sensor"

Transfer lock position sensor

DLN-12, "Transfer Lock Position Sensor"

Transfer fluid temperature sensor

DLN-12, "Transfer Fluid Temperature Sensor"

4WD mode switch

DLN-18, "4WD SYSTEM : System Description"

4WD indicator lamp

DLN-18, "4WD SYSTEM : System Description"

4WD warning lamp

DLN-18, "4WD SYSTEM : System Description"

ATP warning lamp

DLN-18, "4WD SYSTEM : System Description"

ABS actuator and electric unit (control unit)

Transmits the following signals via CAN communication line to transfer control unit.
• Vehicle speed signal (ABS)
• Stop lamp switch signal (brake signal)
• ABS operation signal
• VDC operation signal
• TCS operation signal

Steering angle sensor

Transmits the following signals via CAN communication line to transfer control unit.
• Steering angle sensor signal

ECM

Transmits the following signals via CAN communication line to transfer control unit.
• Accelerator pedal position signal
• Engine speed signal
• Engine torque signal

TCM

Transmits the following signals via CAN communication line to transfer control unit.
• Shift position signal
• Gear position signal
• Output shaft revolution signal