In the event the clutch is disengaged, the torque converter will allow the engine to rotate with out stalling. Although the auto is slowing and approaching a stop, the TCC's application is undesirable. Much like the clutch with a handbook transmission, it triggers the motor to stall. A common problem https://raymondktwyy.blogdosaga.com/34146490/what-does-torque-converter-clutch-mean