What is the reason why the electronic throttle control indicator is on?

The reasons why the electronic throttle control indicator light is on are as follows: 1, and the EPC fault light is always on, indicating that the engine management system or electronic control is faulty, which is often accompanied by unstable idle speed of the vehicle or engine cold start jitter; It is probably caused by engine oil, so you can drive the vehicle to the maintenance service station for maintenance and clean the throttle. 2. When the ignition switch is turned on for function check, the indicator EPC will light up. If the indicator lights up while driving, it means that the engine power electronic control system is out of order. The engine must be checked immediately; 3. Under normal circumstances, dirty throttle body, vacuum leakage of intake system, broken brake switch and untimely engine upgrade may all lead to EPC failure.