The speed control system fitted to the Zetec-E and Duratec-VE is designed to automatically maintain the vehicle speed at any driver-selected speed between approximately 40 kph (25 mph) and 200 kph (125 mph). The system comprises a throttle actuator with integrated electronics, an speed control cable, driver control switches, stop lamp switch, brake de-activator switch, clutch position switch (manual transmission only), status lamp and speed signal input, generated by the vehicle speed sensor mounted to the transmission.