Cruise Control Electronic Control Unit (Ecu)

Cruise control ECU constantly monitors and compares set speed with actual vehicle speed from input sensors. When vehicle speed is different from set speed, cruise control ECU activates actuator motor to change engine throttle valve position, changing vehicle speed.

Cruise control ECU includes a self-diagnostic function. If cruise control system is canceled by any condition other than driver operation, cruise control ECU assumes a malfunction has occurred and may set a corresponding trouble code.