your mechanic on Instagram: "The explanation how the ECU (Engine Control Unit) works with different vehicle components, mainly for cruise control and throttle management. Key Components & Their Roles 1. ECU (Engine Control Unit) ..The brain of the vehicle. ..Receives signals from sensors and switches. ..Calculates and controls throttle opening to maintain speed. 2. Steering-Wheel Mounted Switches ..Used by the driver to set, increase, decrease, or cancel cruise speed. ..Sends commands directly t