Nissan Murano. Instruction — part 1370
TM-22
< SYSTEM DESCRIPTION >
[CVT: RE0F09B]
CONTROL SYSTEM
CONTROL SYSTEM
System Diagram
INFOID:0000000009719403
System Description
INFOID:0000000009719404
The CVT senses vehicle operating conditions through various sensors. It always controls the optimum shift
position and reduces shifting and lock-up shocks.
TCM FUNCTION
The function of the TCM is to:
• Receive input signals sent from various switches and sensors.
• Determine required line pressure, shifting point, and lock-up operation.
• Send required output signals to the step motor and the respective solenoids.
INPUT/OUTPUT SIGNAL OF TCM
JSDIA1370GB
SENSORS (or SIGNAL)
⇒
TCM
⇒
ACTUATORS
Transmission range switch
Accelerator pedal position signal
Closed throttle position signal
Engine speed signal
CVT fluid temperature sensor
Vehicle speed signal
Overdrive control switch signal
Stop lamp switch signal
Primary speed sensor
Secondary speed sensor
Primary pressure sensor
Secondary pressure sensor
Shift control
Line pressure control
Primary pressure control
Secondary pressure control
Lock-up control
Engine brake control
Vehicle speed control
Fail-safe control
Self-diagnosis
CONSULT communication line
Duet-EA control
CAN system
On board diagnosis
Step motor
Torque converter clutch solenoid
valve
Lock-up select solenoid valve
Line pressure solenoid valve
Secondary pressure solenoid valve
OD OFF indicator lamp
Shift position indicator
Starter relay
CONTROL SYSTEM
TM-23
< SYSTEM DESCRIPTION >
[CVT: RE0F09B]
C
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TM
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• *1: Input by CAN communications.
• *2: Output by CAN communications.
• *3: If these input and output signals are different, the TCM triggers the fail-safe function.
Control item
Fluid
pressure
control
Select con-
trol
Shift con-
trol
Lock-up
control
CAN com-
munica-
tion control
Fail-safe
function
*3
Input
Transmission range switch
X
X
X
X
X
X
Accelerator pedal position signal
*1
X
X
X
X
X
X
Closed throttle position signal
*1
X
X
X
X
Engine speed signal
*1
X
X
X
X
X
CVT fluid temperature sensor
X
X
X
X
X
Overdrive control switch signal
*1
X
X
X
X
Stop lamp switch signal
*1
X
X
X
X
Primary speed sensor
X
X
X
X
X
Secondary speed sensor
X
X
X
X
X
X
Primary pressure sensor
X
X
Secondary pressure sensor
X
X
X
TCM power supply voltage signal
X
X
X
X
X
X
Output
Step motor
X
X
TCC solenoid valve
X
X
X
Lock-up select solenoid valve
X
X
X
Line pressure solenoid valve
X
X
X
X
Secondary pressure solenoid valve
X
X
X
OD OFF indicator signal
*2
X
X
TM-24
< SYSTEM DESCRIPTION >
[CVT: RE0F09B]
CONTROL SYSTEM
Component Parts Location
INFOID:0000000009719405
Component Description
INFOID:0000000009719406
TRANSAXLE ASSEMBLY
JSDIA1368GB
CONTROL SYSTEM
TM-25
< SYSTEM DESCRIPTION >
[CVT: RE0F09B]
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A
B
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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-20, "Component Description"
Stop lamp switch
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