Infiniti QX56 (Z62). Manual - part 1275

PREPARATION

TM-9

< PREPARATION >

[7AT: RE7R01B]

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Commercial Service Tool

INFOID:0000000006226737

*: Always check with the Parts Department for the latest parts information.

Tool name

Description

Power tool

Loosening bolts and nuts

Drift
a: 22 mm (0.87 in) dia.

Installing manual shaft oil seals

Drift
a: 64 mm (2.52 in) dia.

Installing rear oil seal (4WD)

Pin punch
a: 4 mm (0.16 in) dia.

Remove retaining pin

1.

315268E000*
O-ring

2.

310811EA5A*
Charging pipe

A/T fluid changing and adjustment

PBIC0190E

NT083

SCIA5338E

NT410

JSDIA1332ZZ

TM-10

< SYSTEM DESCRIPTION >

[7AT: RE7R01B]

COMPONENT PARTS

SYSTEM DESCRIPTION

COMPONENT PARTS

A/T CONTROL SYSTEM

A/T CONTROL SYSTEM : Component Parts Location

INFOID:0000000006226738

1.

Yaw rate/side/decel G sensor
Refer to 

BRC-10, "Component Parts 

Location"

.

2.

Tow mode switch

*1

3.

IPDM E/R
Refer to 

PCS-4, "Component Parts 

Location"

.

4.

ECM
Refer to 

EC-16, "Component Parts 

Location"

.

5.

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

BRC-10, "Component Parts 

Location"

.

6.

Accelerator pedal position sensor
Refer to 

EC-16, "Component Parts 

Location"

.

7.

Stop lamp switch
Refer to 

BRC-10, "Component Parts 

Location"

.

8.

BCM
Refer to 

BCS-4, "BODY CONTROL 

SYSTEM : Component Parts Loca-
tion"

.

9.

Combination meter
Refer to 

MWI-6, "METER SYSTEM : 

Component Parts Location"

.

10. Shift position indicator

(In the information display in the 
combination meter)

11.

A/T CHECK indicator lamp
(On the combination meter)

12. Tow mode indicator lamp

13. Selector lever position indicator

14. Manual mode switch

15. A/T assembly connector

16. Output speed sensor

*2

17. Control valve & TCM

*3

A.

Center console

B.

A/T shift selector assembly

C.

A/T assembly

*1

: Tow mode switch is integrated in to SNOW MODE/TOW MODE/VDC OFF switch assembly (2WD models) or 4WD switch 
assembly (4WD models).

*2

: Output speed sensor is installed in A/T assembly.

*3

: Control valve & TCM is installed in A/T assembly.

JSDIA1773GB

COMPONENT PARTS

TM-11

< SYSTEM DESCRIPTION >

[7AT: RE7R01B]

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NOTE:
The following components are included in the control valve & TCM (17).
• TCM
• Input speed sensor 1, 2
• A/T fluid temperature sensor
• Transmission range switch
• Direct clutch solenoid valve
• High and low reverse clutch solenoid valve
• Input clutch solenoid valve
• Front brake solenoid valve
• Low brake solenoid valve
• Anti-interlock solenoid valve
• 2346 brake solenoid valve
• Line pressure solenoid valve
• Torque converter clutch solenoid valve

A/T CONTROL SYSTEM : Component Description

INFOID:0000000006226739

Name

Function

TCM

TM-12, "A/T CONTROL SYSTEM : TCM"

Transmission range switch

TM-12, "A/T CONTROL SYSTEM : Transmission Range Switch"

Output speed sensor

TM-12, "A/T CONTROL SYSTEM : Output Speed Sensor"

Input speed sensor 1

TM-12, "A/T CONTROL SYSTEM : Input Speed Sensor"

Input speed sensor 2

A/T fluid temperature sensor

TM-12, "A/T CONTROL SYSTEM : A/T Fluid Temperature Sensor"

Input clutch solenoid valve

TM-12, "A/T CONTROL SYSTEM : Input Clutch Solenoid Valve"

Front brake solenoid valve

TM-12, "A/T CONTROL SYSTEM : Front Brake Solenoid Valve"

Direct clutch solenoid valve

TM-12, "A/T CONTROL SYSTEM : Direct Clutch Solenoid Valve"

High and low reverse clutch solenoid valve

TM-13, "A/T CONTROL SYSTEM : High and Low Reverse Clutch Solenoid Valve"

Low brake solenoid valve

TM-13, "A/T CONTROL SYSTEM : Low Brake Solenoid Valve"

Anti-interlock solenoid valve

TM-13, "A/T CONTROL SYSTEM : Anti-interlock Solenoid Valve"

2346 brake solenoid valve

TM-13, "A/T CONTROL SYSTEM : 2346 Brake Solenoid Valve"

Torque converter clutch solenoid valve

TM-13, "A/T CONTROL SYSTEM : Torque Converter Clutch Solenoid Valve"

Line pressure solenoid valve

TM-13, "A/T CONTROL SYSTEM : Line Pressure Solenoid Valve"

Accelerator pedal position sensor

TM-13, "A/T CONTROL SYSTEM : Accelerator Pedal Position Sensor"

Manual mode switch

TM-13, "A/T CONTROL SYSTEM : Manual Mode Switch"

Tow mode switch

TM-14, "A/T CONTROL SYSTEM : Tow Mode Switch"

A/T CHECK indicator lamp

TM-14, "A/T CONTROL SYSTEM : A/T CHECK Indicator Lamp"

Tow mode indicator lamp*

TM-14, "A/T CONTROL SYSTEM : Tow Mode Indicator Lamp"

Selector lever position indicator

TM-14, "A/T CONTROL SYSTEM : Selector Lever Position Indicator"

Stop lamp switch

BRC-15, "Stop Lamp Switch"

Yaw rate/side G sensor

BRC-15, "Yaw Rate/Side/Decel G sensor"

Starter relay

STR-6, "System Description"

ECM

EC-35, "ENGINE CONTROL SYSTEM : System Description"

BCM

BCS-6, "BODY CONTROL SYSTEM : System Description"

Combination meter

MWI-9, "METER SYSTEM : System Description"

ABS actuator and electric unit (control unit)

BRC-16, "System Description"

TM-12

< SYSTEM DESCRIPTION >

[7AT: RE7R01B]

COMPONENT PARTS

A/T CONTROL SYSTEM : TCM

INFOID:0000000006226740

• The TCM consists of a microcomputer and connectors for signal input and output and for power supply. The

TCM controls the A/T.

• The TCM is integral with the control valve assembly and built into the A/T assembly.

A/T CONTROL SYSTEM : Transmission Range Switch

INFOID:0000000006226741

• The transmission range switch incorporates four contact switches. Each contact switch transmits an ON/

OFF signal to the TCM.

• The TCM judges a select lever position from a combination of ON/OFF signals transmitted from each con-

tact switch.

A/T CONTROL SYSTEM : Input Speed Sensor

INFOID:0000000006226742

The input speed sensor detects input shaft rpm (revolutions per minute). It is located on the input side of the A/
T. Monitors revolution of sensor 1 and sensor 2 for non-standard conditions.

A/T CONTROL SYSTEM : Output Speed Sensor

INFOID:0000000006226743

The output speed sensor detects the revolution of the parking gear and emits a pulse signal. The pulse signal
is transmitted to the TCM which converts it into vehicle speed.

A/T CONTROL SYSTEM : A/T Fluid Temperature Sensor

INFOID:0000000006226744

The A/T fluid temperature sensor detects the A/T fluid temperature and transmits a signal to the TCM.

A/T CONTROL SYSTEM : Input Clutch Solenoid Valve

INFOID:0000000006226745

• The Input clutch solenoid valve is controlled by the TCM in response to signals transmitted from the trans-

mission range switch, output speed sensor and accelerator pedal position sensor. Gears will then be shifted
to the optimum position.

• The Input clutch solenoid valve controls the input clutch control valve in response to a signal transmitted

from the TCM.

A/T CONTROL SYSTEM : Front Brake Solenoid Valve

INFOID:0000000006226746

• The front brake solenoid valve is controlled by the TCM in response to signals transmitted from the transmis-

sion range switch, output speed sensor and accelerator pedal position sensor. Gears will then be shifted to
the optimum position.

• The front brake solenoid valve controls the front brake control valve in response to a signal transmitted from

the TCM.

A/T CONTROL SYSTEM : Direct Clutch Solenoid Valve

INFOID:0000000006226747

• The direct clutch solenoid valve is controlled by the TCM in response to signals transmitted from the trans-

mission range switch, output speed sensor and accelerator pedal position sensor. Gears will then be shifted
to the optimum position.

• The direct clutch solenoid valve controls the direct clutch control valve in response to a signal transmitted

from the TCM.

Select lever position

Transmission range switch

SW1

SW2

SW3

SW4

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OFF

OFF

OFF

OFF

R

ON

OFF

OFF

ON

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ON

ON

OFF

OFF

D  and  M

ON

ON

ON

ON