The converter clutch engages only when the control module energizes the converter clutch solenoid. The solenoid seals the bleed passage, allowing line pressure to build in the circuit. Fluid is routed to the rear chamber, and the fluid drains from the front chamber.

Hydraulic force pushes the TCC piston against the converter cover. This coupling directly transfers the engine torque through the damper assembly to the transmission input shaft. Since the impeller and turbine are turning at the same speed, torque multiplication is cancelled, and the converter is in lock-up.

Press play to continue.