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Home >> Nissan-Datsun >> 2009 >> Sentra SE-R >> Repair and Diagnosis (Single Page) >> Transmission >> Automatic Trans >> Continuously Variable Transmission (CVT) >> Service Information >> CVT System >> TCM Function >> Control System Outline
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Control System Outline

The CVT senses vehicle operating conditions through various sensors. It always controls the optimum shift position and reduces shifting and lock-up shocks.

TCM SPECIFICATIONS

SENSORS (or SIGNAL)   TCM   ACTUATORS
PNP switch
Accelerator pedal position signal
Closed throttle position signal
Engine speed signal
CVT fluid temperature sensor
Vehicle speed signal
Overdrive control signal
Manual mode switch signal(1)
Stop lamp switch signal
Primary speed sensor
Secondary speed sensor
Primary pressure sensor(2)
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-III 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
Shift position indicator
O/D OFF indicator lamp
Manual mode indicator(1)
Starter relay
(1) With QR25DE

(2) Primary pressure sensor does not have any function.