Nissan Murano Z51. Manual - part 1418

CONTROL SYSTEM

TM-23

< SYSTEM DESCRIPTION >

[CVT: RE0F09B]

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EXCEPT TRANSAXLE ASSEMBLY

Name

Function

Transmission range switch

TM-46, "Description"

CVT fluid temperature sensor

TM-49, "Description"

Primary speed sensor

TM-52, "Description"

Secondary speed sensor

TM-55, "Description"

Primary pressure sensor

TM-79, "Description"

Secondary pressure sensor

TM-74, "Description"

Step motor

TM-96, "Description"

TCC solenoid valve

TM-62, "Description"

Lock-up select solenoid valve

TM-93, "Description"

Line pressure solenoid valve

TM-66, "Description"

Secondary pressure solenoid valve

TM-72, "Description"

Name

Function

TCM

TM-18, "Component Description"

Stop lamp switch

TM-43, "Description"

TM-24

< SYSTEM DESCRIPTION >

[CVT: RE0F09B]

LOCK-UP AND SELECT CONTROL SYSTEM

LOCK-UP AND SELECT CONTROL SYSTEM

System Diagram

INFOID:0000000005513948

System Description

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• The torque converter clutch piston in the torque converter is engaged to eliminate torque converter slip to

increase power transmission efficiency.

• The torque converter clutch control valve operation is controlled by the torque converter clutch solenoid

valve, which is controlled by a signal from TCM. The torque converter clutch control valve engages or
releases the torque converter clutch piston.

• When shifting between “N” (“P”) 

⇒

“D” (“R”), torque converter clutch solenoid valve controls engagement

power of forward clutch and reverse brake.

• The lock-up applied gear range was expanded by locking up the

torque converter at a lower vehicle speed than conventional CVT
models.

TORQUE CONVERTER CLUTCH AND SELECT CONTROL VALVE CONTROL 

Lock-up Released 

In the lock-up released state, the torque converter clutch control valve is set into the unlocked state by the
torque converter clutch solenoid valve and the lock-up apply pressure is drained.
In this way, the torque converter clutch piston is not coupled.

Lock-up Applied

In the lock-up applied state, the torque converter clutch control valve is set into the locked state by the torque
converter clutch solenoid valve and lock-up apply pressure is generated.
In this way, the torque converter clutch piston is pressed and coupled.

Select Control

When shifting between “N” (“P”) 

⇒

“D” (“R”), optimize the operating pressure on the basis of the throttle posi-

tion, the engine speed, and the secondary pulley (output) revolution speed to lessen the shift shock.

JSDIA1355GB

JPDIA0312GB

LOCK-UP AND SELECT CONTROL SYSTEM

TM-25

< SYSTEM DESCRIPTION >

[CVT: RE0F09B]

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Component Parts Location

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Component Description

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TRANSAXLE ASSEMBLY

JSDIA1368GB

TM-26

< SYSTEM DESCRIPTION >

[CVT: RE0F09B]

LOCK-UP AND SELECT CONTROL SYSTEM

EXCEPT TRANSAXLE ASSEMBLY

Name

Function

Torque converter regulator valve

TM-18, "Component Description"

TCC control valve

Select control valve

Select switch valve

Manual valve

TCC solenoid valve

TM-62, "Description"

Lock-up select solenoid valve

TM-93, "Description"

Primary speed sensor

TM-52, "Description"

Secondary speed sensor

TM-55, "Description"

CVT fluid temperature sensor

TM-49, "Description"

Transmission range switch

TM-46, "Description"

Forward clutch

TM-14, "Component Description"

Reverse brake

Torque converter

Name

Function

TCM

TM-18, "Component Description"

Accelerator pedal position sensor

TM-87, "Description"