Torque Converter Clutch Lock-Up ON (Engaging Torque Converter Clutch)

The fluid pressure is applied to the lock-up fluid passage (94) in the torque converter, causing the torque converter clutch in the torque converter to be engaged and then the turbine and the torque converter cover to be engaged. The mainshaft rotates at the same speed as the engine crankshaft when the torque converter clutch in the torque converter is engaged.

Fig 1: Identifying Torque Converter Clutch Lock-Up ON

Courtesy of AMERICAN HONDA MOTOR CO., INC.