What does the engine icon on the car dashboard indicate as a fault?

[BeckettDella]

When the engine icon appears on the car dashboard, it indicates an engine fault. Below are specific details about the engine icon displayed on the dashboard: 1. In a normal vehicle, when the key is turned to the ON position, the engine fault light on the dashboard will illuminate and automatically turn off after the car starts. 2. If the engine icon remains lit after the vehicle starts, it signifies an engine fault. 3. The engine fault signal is issued by the ECU (Engine Control Unit), which controls all electronic components of the engine, including the electronic throttle, fuel injectors, alternator, fuel pump, etc., covering various systems such as intake, exhaust, fuel, ignition, and timing.