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Home >> Jaguar >> 2012 >> XJ Base >> Repair and Diagnosis (Single Page) >> Transmission >> Automatic Trans >> Automatic Transmission/Transaxle - Vehicles With: 6HP28 6-Speed Automatic Transmission -- XJ/X351 >> Description And Operation >> Transmission Description - System Operation And Component Description (G1772590) >> Component Description >> Transmission Control Module
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Transmission Control Module

The 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 sensors, ECM and other vehicle systems. From the received signal inputs and pre-programmed data, the module calculates the correct gear, torque converter clutch setting and optimum pressure settings for gear shift and lock-up clutch control.