The torque converter clutch solenoid is always energised (stuck on) which translates into the torque converter becoming often locked. The TCM controls the TCC solenoid. If your solenoid were to stay shut, the TCC would stay engaged when the car slows to some end. This resistance results in the motor https://torque-converter-clutch64307.blogdemls.com/34141613/5-tips-about-torque-converter-clutch-you-can-use-today