Torque Converter Clutch (TCC) Electrical Controls

The Torque Converter Clutch (TCC) system uses controls that are internal as well as external to the transmission. For the internal control components of the TCC system, refer to TORQUE CONVERTER CLUTCH DIAGNOSIS.

The TCC system includes the following external control components:
- Cruise Control Release Switch - In order to avoid stalling the engine when braking, the converter clutch releases anytime the brake pedal is applied.
- Powertrain Control Module (PCM) - The PCM receives input signals and grounds TCC solenoid to apply clutch when the proper operating conditions are met.
- Throttle Position (TP) Sensor - The TP Sensor sends throttle position information to the PCM.
- Vehicle Speed Sensor (VSS) - The VSS sends vehicle speed information to the Powertrain Control Module (PCM).
- Manifold Absolute Pressure (MAP) Sensor - The MAP Sensor sends engine vacuum (load) information to the PCM.
- Engine Coolant Temperature (ECT) Sensor - The ECT Sensor sends engine coolant temperature information to the PCM.