Nissan Qashqai (2007-2010). Manual — part 567

CONTROL SYSTEM

TM-203

< FUNCTION DIAGNOSIS >

[CVT: RE0F10A]

C

E

F

G

H

I

J

K

L

M

A

B

TM

N

O

P

Component Description

INFOID:0000000000988617

TRANSAXLE ASSEMBLY

JPDIA0129GB

TM-204

< FUNCTION DIAGNOSIS >

[CVT: RE0F10A]

CONTROL SYSTEM

EXCEPT TRANSAXLE ASSEMBLY

Name

Function

PNP switch

TM-226

CVT fluid temperature sensor

TM-229

Primary speed sensor

TM-231

Secondary speed sensor

TM-234

Primary pressure sensor

TM-260

Secondary pressure sensor

TM-255

Step motor

TM-276

TCC solenoid valve

TM-240

Lock-up select solenoid valve

TM-273

Line pressure solenoid valve

TM-244

Secondary pressure solenoid valve

TM-248

Name

Function

TCM

Optimally controls continuously variable transmission system by judging driving condi-
tions based on signals from each sensor.

Stop lamp switch

TM-224

LOCK-UP AND SELECT CONTROL SYSTEM

TM-205

< FUNCTION DIAGNOSIS >

[CVT: RE0F10A]

C

E

F

G

H

I

J

K

L

M

A

B

TM

N

O

P

LOCK-UP AND SELECT CONTROL SYSTEM

System Diagram

INFOID:0000000000988618

System Description

INFOID:0000000000988619

• 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 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 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 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.

Component Parts Location

INFOID:0000000000988620

SCIA2374E

JPDIA0312GB

TM-206

< FUNCTION DIAGNOSIS >

[CVT: RE0F10A]

LOCK-UP AND SELECT CONTROL SYSTEM

Component Description

INFOID:0000000000988621

TRANSAXLE ASSEMBLY

JPDIA0129GB