Nissan Murano Z51. Manual — part 1418
CONTROL SYSTEM
TM-23
< SYSTEM DESCRIPTION >
[CVT: RE0F09B]
C
E
F
G
H
I
J
K
L
M
A
B
TM
N
O
P
EXCEPT TRANSAXLE ASSEMBLY
Name
Function
Transmission range switch
CVT fluid temperature sensor
Primary speed sensor
Secondary speed sensor
Primary pressure sensor
Secondary pressure sensor
Step motor
TCC solenoid valve
Lock-up select solenoid valve
Line pressure solenoid valve
Secondary pressure solenoid valve
Name
Function
TCM
TM-18, "Component Description"
Stop lamp switch
TM-24
< SYSTEM DESCRIPTION >
[CVT: RE0F09B]
LOCK-UP AND SELECT CONTROL SYSTEM
LOCK-UP AND SELECT CONTROL SYSTEM
System Diagram
INFOID:0000000005513948
System Description
INFOID:0000000005513949
• 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]
C
E
F
G
H
I
J
K
L
M
A
B
TM
N
O
P
Component Parts Location
INFOID:0000000005513950
Component Description
INFOID:0000000005513951
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
Lock-up select solenoid valve
Primary speed sensor
Secondary speed sensor
CVT fluid temperature sensor
Transmission range switch
Forward clutch
TM-14, "Component Description"
Reverse brake
Torque converter
Name
Function
TCM
TM-18, "Component Description"
Accelerator pedal position sensor
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