Torque Converter Clutch (TCC) Solenoid: Notes

WARNING: This page is about a different car, the 2010 Mercury Mariner and 2010 Ford Escape. However, it is still accessible from the selected car via links, so may be relevant.

The TCC solenoid is a VFS that varies hydraulic pressure by actuating a hydraulic valve.

The PCM applies variable current to the TCC solenoid which varies pressure in the VBS TCC hydraulic circuit to the TCC regulator valve and the TCC control valve. Refer to HYDRAULIC CIRCUITS for additional information.

The TCC solenoid uses proportional operation. As the current from the PCM decreases, the pressure from the solenoid decreases. As the current from the PCM increases, the pressure from the solenoid increases. The TCC solenoid is supplied hydraulic pressure from the SOL FD circuit.

With zero current, the TCC solenoid fully closes the hydraulic valve which applies the minimum amount of hydraulic pressure to the TCC regulator valve through the VBS TCC hydraulic circuit and releases the TCC . With maximum current to the solenoid, the hydraulic valve fully opens the outlet port for maximum pressure to the VBS TCC hydraulic circuit to apply the TCC .