The TP sensor suggests the throttle plate angle. If the motive force accelerates to extensive-open up throttle, the TCM disengages the TCC to downshift. If the torque converter slips even though driving, this can result in unneeded heating on the transmission fluid, which in some unspecified time in the future https://torque-converter-clutch16046.vidublog.com/33011804/5-simple-statements-about-torque-converter-clutch-explained