What happened to the epc light on Audi a6l?

The reason why the epc light of Audi a6l is on is as follows: 1. The throttle is too dirty; 2. The brake light is not on. Epc is the electronic power control system of the engine, which is quite common in Volkswagen. After the key door is opened, the vehicle starts self-inspection, and the epc indicator light 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. Audi a6l is a luxury car produced by Audi. There are two kinds of cars and station wagons. Incorporating Audi's unique high-tech technology, it further enriches the luxury configuration and is endowed with the characteristics of super sports, luxurious, dynamic and mature.