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.FUNCTION CHART
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
Manual mode signal
Stop lamp switch signal
Primary speed sensor
Secondary speed sensor
Secondary pressure sensorShift 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 diagnosisStep motor
Torque converter clutch solenoid valve
Lock-up select solenoid valve
Line pressure solenoid valve
Secondary pressure solenoid valve
Manual mode indicator
Shift position indicator
CVT indicator lamp
Starter relay*: Without manual mode.