Torque Converter Clutch (TCC) Solenoid
WARNING: This page is about a different car, the 2004 Ford RV Cutaway, 2004 Ford Econoline, 2004 Ford E450 Super Duty, and 2004 Ford Cutaway. However, it is still accessible from the selected car via links, so may be relevant.
The torque converter clutch (TCC) solenoid is a directly proportional VFS. The pressure output of this 3-port device is proportional to the applied DC current supplied through an electronically controlled driver which varies the current between 0 and 1 amp from the powertrain control module (PCM).