Toyota
Nissan Versa
 Sedan Service Manual
Transmission & driveline » Transaxle & transmission (TM) » CVT Control system
CVT Control system : system description

SYSTEM DIAGRAM

SYSTEM DIAGRAM

INPUT/OUTPUT SIGNAL TABLE

Sensor (or signal)

TCM function

Actuator

  • Engine and CVT integrated control signal
  • Engine speed signal
  • Accelerator pedal position signal
  • Closed throttle position signal
  • Stop lamp switch signal
  • Secondary pressure sensor
  • CVT fluid temperature sensor
  • Primary speed sensor
  • Secondary speed sensor
  • Output speed sensor
  • Transmission range switch signal
  • Overdrive control switch signal
  • Vehicle speed signal (ABS)
  • ABS operation signal
  • A/C compressor feedback signal
  • G sensor
  • N idle instruction signal
  • Turn indicator signal
  • Line pressure control (TM "LINE PRESSURE CONTROL : System Description")
  • Shift control (TM "SHIFT CONTROL : System Description")
  • Select control (TM "SELECT CONTROL : System Description")
  • Lock-up control (TM "LOCK-UP CONTROL : System Description")
  • Idle neutral control (TM "IDLE NEUTRAL CONTROL : System Description")
  • Fail-safe mode (TM "Fail-safe")
  • Self-diagnosis function (TM "CONSULT Function")
  • Communication function with CONSULT (TM "CONSULT Function")
  • CAN communication control (TM "Description")
  • Line pressure solenoid valve
  • Primary pressure solenoid valve
  • Torque converter clutch solenoid valve
  • High clutch & reverse brake solenoid valve
  • Low brake solenoid valve
  • OD OFF indicator lamp
  • Shift position indicator

SYSTEM DESCRIPTION

  • CVT detects the vehicle driving status from switches, sensors and signals, and controls the vehicle so that the optimum shift position and shift timing may always be achieved. It also controls the vehicle to reduce shift and lockup shock, etc.
  • Receives input signals from switches and sensors.
  • Sends the output signal necessary for operation of solenoid valves, and evaluates the line pressure, shift timing, lockup operation, engine brake performance, etc.
  • If a malfunction occurs on the electric system, activate the fail-safe mode only to drive the vehicle.

LIST OF CONTROL ITEMS AND INPUT/OUTPUT

LIST OF CONTROL ITEMS AND INPUT/OUTPUT

LIST OF CONTROL ITEMS AND INPUT/OUTPUT

**: If these input/output signals show errors, TCM activates the fail-safe function.

CVT CONTROL SYSTEM : Schematic

CVT CONTROL SYSTEM : Schematic

CVT CONTROL SYSTEM : Schematic

    More about «CVT Control system»:

    CVT Control system : system description

    CVT Control system : fail-safe

    CVT Control system : protection control

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