Nissan Sentra. Instruction — part 860
TM-76
< SYSTEM DESCRIPTION >
[CVT: RE0F11A]
COMPONENT PARTS
CVT CONTROL SYSTEM : Primary Speed Sensor
INFOID:0000000009759322
• The primary speed sensor is installed to side cover of transaxle.
• The primary speed sensor detects primary pulley speed.
• The primary speed sensor generates an ON-OFF pulse signal according to the rotating body speed. TCM
judges the rotating body speed from the pulse signal.
CVT CONTROL SYSTEM : Secondary Speed Sensor
INFOID:0000000009759323
• The secondary speed sensor is installed to side cover of transaxle.
• The secondary speed sensor detects secondary pulley speed.
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COMPONENT PARTS
TM-77
< SYSTEM DESCRIPTION >
[CVT: RE0F11A]
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• The secondary speed sensor generates an ON-OFF pulse signal according to the rotating body speed. TCM
judges the rotating body speed from the pulse signal.
CVT CONTROL SYSTEM : Output Speed Sensor
INFOID:0000000009759324
• The output speed sensor is installed to the back side of transaxle
case.
• The output speed sensor detects final gear speed. TCM evaluates
the vehicle speed from the final gear revolution.
• The output speed sensor generates an ON-OFF pulse signal according to the rotating body speed. TCM
judges the rotating body speed from the pulse signal.
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TM-78
< SYSTEM DESCRIPTION >
[CVT: RE0F11A]
COMPONENT PARTS
CVT CONTROL SYSTEM : CVT Fluid Temperature Sensor
INFOID:0000000009759325
• The CVT fluid temperature sensor is installed to control valve.
• The CVT fluid temperature sensor detects CVT fluid temperature
in oil pan.
• The fluid temperature sensor uses a thermistor, and changes the signal voltage by converting changes in the
CVT fluid temperature to a resistance value. TCM evaluates the CVT fluid temperature from the signal volt-
age value.
CVT CONTROL SYSTEM : Secondary Pressure Sensor
INFOID:0000000009759326
• The secondary pressure sensor is installed to control valve.
• The secondary pressure sensor detects the pressure applied to
the secondary pulley.
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COMPONENT PARTS
TM-79
< SYSTEM DESCRIPTION >
[CVT: RE0F11A]
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• When pressure is applied to the ceramic device in the secondary pressure sensor, the ceramic device is
deformed, resulting in voltage change. TCM evaluates the secondary pressure from its voltage change. Volt-
age is increased along with pressure increase.
CVT CONTROL SYSTEM : Primary Pressure Solenoid Valve
INFOID:0000000009759327
• The primary pressure solenoid valve is installed to control valve.
• The primary pressure solenoid valve controls the primary pressure
control valve. For information about the primary pressure control
valve, refer to
TM-88, "TRANSAXLE : Component Description"
.
• The primary pressure solenoid valve uses the linear solenoid valve
[N/H (normal high) type].
NOTE:
• The principle of the linear solenoid valve utilizes the fact that the
force pressing on the valve spool installed inside the coil
increases nearly in proportion to the current. This allows it to pro-
duce a fluid pressure that is proportional to this pressing force.
• The N/H (normal high) produces hydraulic control when the coil
is not energized.
CVT CONTROL SYSTEM : Low Brake Solenoid Valve
INFOID:0000000009759328
• The low brake solenoid valve is installed to control valve.
• The low brake solenoid valve adjusts the low brake engaging pres-
sure.
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