What does EPC mean when it appears on the car display screen?

[LeviDella]

The EPC indicator light has two activation states: illumination during power-on self-test and illumination 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 engine is not started after power-on, the light will automatically turn off after about 3 seconds. If the EPC indicator light remains illuminated 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 activate if the engine intake is obstructed or insufficient. Throttle valve fault: Carbon buildup is a common issue with throttle valves. Additionally, dirt on the main body can affect intake, causing the indicator light to illuminate. Fuel system fault: Issues such as substandard fuel, fuel deterioration, or poor fuel atomization can trigger the light. Engine fault: Insufficient engine pressure or problems with the intake valve and other powertrain components can also activate the EPC light. ECU control unit fault: For example, interference with the vehicle computer signals or false alarms from the vehicle computer. Brake light fault: Situations like non-functioning brake lights, faulty brake switches, or brake circuit issues can cause the light to illuminate. Solutions for when the EPC indicator light illuminates: Troubleshoot the intake system, use fuel with the appropriate octane rating, clean the throttle valve, etc. Remove carbon deposits from relevant parts. Re-flash the ECU data. If the EPC 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 just interference affecting the EPC indicator. If the EPC light remains on or frequently illuminates, the vehicle should be taken to the nearest repair facility for professional diagnosis and troubleshooting to eliminate potential safety hazards. The full English name of EPC is Electronic-Power-Control, which translates 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 powertrain. When sensor data in the system is abnormal, the EPC system will take predefined measures for the powertrain. Common EPC indicator lights generally 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 facility for inspection. If the EPC fault light is red, the situation is more severe, and the driver should pull over immediately and contact a repair professional. Continuing to drive may directly affect the vehicle's core components or driving safety.