What does it mean when the engine fault light comes on?

[MicahLee]

The engine fault light coming on indicates issues such as degraded engine oil or a clogged air filter. Below are relevant introductions about the dashboard: Insufficient washer fluid level: This indicator shows the level of the windshield washer fluid. If the fluid is nearly depleted, the light will illuminate, prompting the owner to refill the washer fluid promptly. The light will turn off after adding the cleaning fluid. Electronic throttle malfunction: This light is commonly seen in Volkswagen models. During the vehicle's self-check, the EPC light will illuminate for a few seconds and then turn off. If there is a fault, this light will stay on, indicating the need for immediate inspection and repair. This indicator is used to display the working status of the front and rear fog lights. When the fog lights are turned on, both lights will illuminate, with the left one in the diagram indicating the front fog light and the right one indicating the rear fog light.