TCM Function: Notes

The function of the TCM is to:

• Receive input signals transmitted from various switches and sensors.
• Determine required line pressure, shifting point, lock-up operation, engine brake operation, etc.
• Transmit required output signals to the respective solenoids.
  SIGNALS REFERENCE
  
  

  SENSORS (or SIGNALS)	=>	TCM	=>	ACTUATORS
  PNP switch Accelerator pedal position signal Closed throttle position signal Wide open throttle position signal Engine speed signal A/T fluid temperature sensor Revolution sensor Vehicle speed signal Manual mode switch signal Stop lamp switch signal Turbine revolution sensor ATF pressure switch		Shift control Line pressure control Lock-up control Engine brake control Timing control Fail-safe control Self-diagnosis CONSULT-III communication line Duet-EA control CAN system		Input clutch solenoid valve Direct clutch solenoid valve Front brake solenoid valve High and low reverse clutch solenoid valve Low coast brake solenoid valve Torque converter clutch solenoid valve Line pressure solenoid valve A/T CHECK indicator lamp Back-up lamp relay Starter relay