What does the dashboard light indicate after the engine starts?

[Gail]

After the engine starts, the dashboard light indicates different situations: 1. If the indicator light turns off after 3 to 4 seconds, it means the vehicle's electronic control system is functioning normally; 2. If the electrical system self-check indicator light remains on, it indicates a fault in the electrical system; 3. If the engine self-check indicator light stays on, it signifies an engine fault. The function of the engine is to convert the thermal energy of gasoline or diesel into mechanical energy by burning and expanding the gas in a sealed cylinder, thereby pushing the piston to perform work. Methods for engine maintenance include: 1. Using qualified engine oil; 2. Using qualified coolant and antifreeze; 3. Regularly cleaning the radiator scale; 4. Regularly removing engine carbon deposits; 5. Periodically replacing the vehicle's three filters; 6. Maintaining a reasonable engine speed.