What is Audi a4 fault light epc?

Questioner: The full name of EPC in Xuzhou is engine electronic power control system, which is also called electronic throttle by many people. EPC indicator light is very common among the public. After the key door is opened, the EPC indicator will light up for a few seconds and then go out. If the vehicle does not go out after starting, it means that the mechanical and electronic system of the vehicle has failed. Generally speaking, there are two possibilities for EPC lights to turn on. First of all, the throttle is dirty and needs cleaning. In another case, the brake light is not on, so it is necessary to check the brake switch and wiring.