Incorrect TCC Apply Or Release

Incorrect output speed sensor, engine speed or throttle position sensor signal. Faulty PCM or TCM. Faulty pressure switch or temperature sensor. Incorrect coolant or transmission temperature (Diesel engine) signal. Problem with Digital Ratio Adapter (DRAC on 2WD only). Faulty brake switch circuit or ignition module (gasoline vehicles) or faulty tachometer (Diesel vehicles).