The torque converter clutch comes into motion to mitigate the inherent inefficiency of the fluid coupling at larger speeds. The TP sensor indicates the throttle plate angle. If the driver accelerates to huge-open throttle, the TCM disengages the TCC to downshift. In torque converter no shifting mechanism is needed as https://torqueconverterclutch19517.bloggazza.com/33255949/5-tips-about-torque-converter-clutch-you-can-use-today