What does EPC mean when it appears on a car?

[MacEmerson]

The EPC indicator light can illuminate in two states: during power-on self-test and under other circumstances. The power-on self-test is an indication that the vehicle is monitoring the status of all sensors before driving. Generally, if the vehicle is not started after power-on, the light will turn off by itself after about 3 seconds. If the EPC indicator light remains on under other circumstances or does not turn off for a long time after the vehicle is started, the main causes may include faults in the engine intake system, throttle valve, fuel system, engine, ECU control unit, or brake lights. Below is a detailed introduction to the causes of the EPC light illuminating under other circumstances: Engine intake system fault: The EPC light will alert when the engine intake is obstructed or insufficient. Throttle valve fault: Carbon buildup is a common issue with the throttle valve. Additionally, dirt on the main body can affect intake, causing the indicator light to illuminate. Fuel system fault: Examples include substandard fuel, fuel deterioration, or poor fuel atomization. Engine fault: Insufficient engine pressure or issues with the intake valve or other power system components can also trigger the EPC light. ECU control unit fault: For instance, interference with the onboard computer signals or false alarms from the onboard computer. Brake light fault: Situations such as non-functioning brake lights, faulty brake switches, or brake circuit issues. Solutions for when the car's EPC indicator light illuminates: Troubleshoot the intake system, use fuel with the appropriate rating, clean the throttle valve, etc. Remove carbon deposits from relevant parts. Re-flash the ECU-related data. If the EPC indicator light illuminates, the owner can first try turning off the engine and restarting it to see if the EPC light remains on. If it does not illuminate again, there may be no issue, possibly due to interference affecting the EPC indicator. If the EPC light remains on or frequently illuminates, drive to the nearest vehicle service point for professional assistance in troubleshooting and promptly eliminating potential safety hazards. The full English name of EPC is Electronic-Power-Control, which translates directly to electronic power control. Most people refer to it as the engine electronic stability system. The EPC system mainly includes controllers and sensors related to the power system. When sensor data in the system is abnormal, the EPC system will take predefined measures for the power system. Common EPC indicator lights typically display two colors: yellow and red. If the EPC fault light is yellow and the car can still operate normally, proceed slowly to a repair point for vehicle inspection. If the EPC fault light is red, it indicates a more serious situation. The driver should immediately pull over and contact relevant repair personnel for assistance. Continuing to drive could directly affect the car's core components or driving safety.