Infiniti QX56 (Z62). Manual - part 1276

 

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Infiniti QX56 (Z62). Manual - part 1276

 

 

COMPONENT PARTS

TM-13

< SYSTEM DESCRIPTION >

[7AT: RE7R01B]

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A/T CONTROL SYSTEM : High and Low Reverse Clutch Solenoid Valve

INFOID:0000000006226748

• The high and low reverse clutch solenoid valve is controlled by the TCM in response to signals transmitted

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

• The high and low reverse clutch solenoid valve controls the high and low reverse clutch control valve in

response to a signal transmitted from the TCM.

A/T CONTROL SYSTEM : Low Brake Solenoid Valve

INFOID:0000000006226749

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

the TCM.

A/T CONTROL SYSTEM : Anti-interlock Solenoid Valve

INFOID:0000000006226750

• Anti-interlock solenoid valve prevents the simultaneous activation of the input clutch and the low brake.
• The anti-interlock solenoid valve is an ON/OFF type solenoid valve.

A/T CONTROL SYSTEM : 2346 Brake Solenoid Valve

INFOID:0000000006226751

• The 2346 brake 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 2346 brake solenoid valve controls the 2346 brake control valve in response to a signal transmitted from

the TCM.

A/T CONTROL SYSTEM : Torque Converter Clutch Solenoid Valve

INFOID:0000000006226752

The torque converter clutch solenoid valve is activated, with the gear in D

2

, D

3

, D

4

, D

5

, D

6

, D

7

, M2, M3, M4,

M5, M6 and M7 by the TCM in response to signals transmitted from the output speed sensor and accelerator
pedal position sensor. Torque converter clutch piston operation will then be controlled.

A/T CONTROL SYSTEM : Line Pressure Solenoid Valve

INFOID:0000000006226753

The line pressure solenoid valve regulates the oil pump discharge pressure to suit the driving condition in
response to a signal transmitted from the TCM.

A/T CONTROL SYSTEM : Accelerator Pedal Position Sensor

INFOID:0000000006226754

• The accelerator pedal position sensor is installed on the upper end of the accelerator pedal assembly.
• The accelerator pedal position sensor detects the accelerator position.
• The accelerator pedal position sensor transform the accelerator pedal position into output voltage, and emit

the voltage signal to the ECM. Then, the TCM receives accelerator pedal position signal from the ECM via
CAN communication.

A/T CONTROL SYSTEM : Manual Mode Switch

INFOID:0000000006226755

• The manual mode switch [mode select switch and position select switch (shift-up/shift-down)] is installed in

the A/T shift selector assembly.

• The mode select switch detects the position (the main shift gate side or manual shift gate side) of the selec-

tor lever and transmits a manual mode signal or a not manual mode signal to the combination meter. Then,
the TCM receives a manual mode signal or non-manual mode signal from the combination meter.

• The position select switch (shift-up) detects that the selector lever is shifted to the shift-up side of the manual

shift gate and transmits a manual mode shift up signal to the combination meter. Then, the TCM receives a
manual mode shift up signal from the combination meter.

• The position select switch (shift-down) detects that the selector lever is shifted to the shift-down side of the

manual shift gate and transmits a manual mode shift down signal to the combination meter. Then, the TCM
receives a manual mode shift down signal from the combination meter.

TM-14

< SYSTEM DESCRIPTION >

[7AT: RE7R01B]

COMPONENT PARTS

A/T CONTROL SYSTEM : Tow Mode Switch

INFOID:0000000006226756

• Tow mode switch is integrated in to 
• Tow mode switch is integrated in to SNOW MODE/TOW MODE/VDC OFF switch assembly (2WD models)

or 4WD switch assembly (4WD models). 

• When tow mode switch is pressed while tow mode indicator lamp on combination meter is OFF, the tow

mode turns ON and tow mode indicator lamp turns ON.

• When tow mode switch is pressed while tow mode indicator lamp on combination meter is ON, the tow mode

turns OFF and tow mode indicator lamp turns OFF.

A/T CONTROL SYSTEM : A/T CHECK Indicator Lamp

INFOID:0000000006226757

A/T CHECK INDICATOR LAMP

Turns ON when ignition switch turns ON and turns OFF when the system is normal, for bulb check purposes.

A/T CONTROL SYSTEM : Tow Mode Indicator Lamp

INFOID:0000000006226758

TOW MODE INDICATOR LAMP

Turns ON when tow mode is switched to operational status (ON) by tow mode switch.

A/T CONTROL SYSTEM : Selector Lever Position Indicator

INFOID:0000000006226759

Indicates selector lever position.

A/T SHIFT LOCK SYSTEM

Condition (status)

A/T CHECK indicator lamp

Ignition switch OFF

OFF

For approx. 2 seconds after the ignition switch is turned ON

ON

Approx. 2 seconds after ignition switch is turned ON

OFF

A/T is malfunctioning

OFF

Condition (status)

Tow mode indicator lamp

Ignition switch OFF

OFF

When ignition switch turns ON

OFF

Press tow mode switch while tow mode indicator lamp is OFF.

ON

Press tow mode switch while tow mode indicator lamp is ON.

OFF

COMPONENT PARTS

TM-15

< SYSTEM DESCRIPTION >

[7AT: RE7R01B]

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A/T SHIFT LOCK SYSTEM : Component Parts Location

INFOID:0000000006226760

A/T SHIFT LOCK SYSTEM : Component Description

INFOID:0000000006226761

1.

Stop lamp switch
Refer to 

BRC-10, "Component Parts 

Location"

.

2.

Shift lock cover *

3.

Shift lock solenoid

4.

Park position switch

A.

Center console

B.

A/T shift selector assembly

*: Shift lock release button becomes operative by removing shift lock cover.

JSDIA1695GB

Component

Function

Shift lock solenoid

It operates according to the signal from the stop lamp switch and moves the lock lever.

Lock lever

It moves according to the operation of the shift lock solenoid and performs the release of 
the shift lock.

Detent rod

It links with the selector button and restricts the selector lever movement.

Park position switch

It detects that the selector lever is in “P” position.

Shift lock release button

It moves the lock lever forcibly.

TM-16

< SYSTEM DESCRIPTION >

[7AT: RE7R01B]

STRUCTURE AND OPERATION

STRUCTURE AND OPERATION

TRANSMISSION

TRANSMISSION : Cross-Sectional View

INFOID:0000000006226762

2WD MODELS

4WD MODELS

1.

Low brake

2.

Drum support

3.

Reverse brake

4.

Direct clutch

5.

High and low reverse clutch

6.

2nd one-way clutch

7.

*1

Rear carrier

8.

Mid carrier

9.

Input clutch

10.

*2

Front sun gear

11.

*3

Front carrier

12.

Under drive carrier

13.

1st one-way clutch

14.

Front brake

15.

2346 brake

16.

*4

Input shaft

17.

Torque converter

18.

Oil pump

19.

*2

Under drive sun gear

20.

*3

Under drive internal gear

21.

*4

Front internal gear

22.

Mid sun gear

23.

*1

Mid internal gear

24.

Rear sun gear

25.

Rear internal gear

26.

High and low reverse clutch hub

27.

Control valve & TCM

28.

Parking gear

29.

Adapter case

30.

Output shaft

*1: 7 and 23 are one unit.

*2: 10 and 19 are one unit.

*3: 11 and 20 are one unit.

*4: 16 and 21 are one unit.

JSDIA1852ZZ

 

 

 

 

 

 

 

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