Torque Converter Clutch (TCC) Solenoid and Relay

The Torque Converter Clutch (TCC) solenoid is with the three-speed automatic transmissions. The Powertrain Control Module (PCM) operates the TCC solenoid by energizing the TCC relay.

Circuit T17 from fuse 3 in the power distribution center supplies voltage to the coil and contact sides of the TCC relay. When the PCM provides a ground path on circuit K54 for the coil side of the relay, the relay contacts close.

When the relay contacts close, they connect circuit T17 with circuit T22. Circuit T22 supplies battery voltage to the case grounded TCC solenoid. Circuit K54 connects to PCM cavity 54.