Transmission Control Module
The Transmission Control Module (TCM) is an integral part of the Mechatronic valve block which is located at the bottom of the transmission, within the fluid pan. The TCM is the main controlling component of the transmission.
The TCM processes signals from the transmission speed and temperature sensor, Powertrain Control Module (PCM) and other vehicle systems. From the received inputs and pre-programmed data, the module calculates the correct gear, torque converter clutch setting and optimum pressure settings.