What is the reason for the automatic start-stop failure epc of Audi a6l?

The following are the reasons why the automatic start-stop of Audi a6l failed: 1. If the Audi a6 has an automatic start-stop fault and the epc light is on at the same time, this situation belongs to the intermittent fault of the engine EPC system, which leads to the failure of the automatic start-stop system. 2. The lighting of Audi A6l-EPC is usually caused by serious dirt on the accelerator or damage to the accelerator or accelerator pedal, and damage to the brake light switch and valve lift AVS control valve. The following is the introduction of EPC: 1. EPC is called engine electronic stability system, commonly known as electronic throttle system. The system mainly consists of engine control unit, engine wiring harness, throttle, accelerator pedal, brake switch and manual transmission clutch switch. 2. In the Audi A6l car, in addition to the above components, there is a problem with the valve lift AVS system, and the EPC fault light will also light up. As long as any of the above components has problems, the engine control unit will directly trigger the EPC light to light up.