随着汽车电子技术的发展,汽车上的电控系统越来越多。电控汽车的ECU是控制系统的中枢神经,它不仅有控制功能,而且还有记忆功能和自诊断功能。当汽车电控系统出现故障时,ECU会储存相应的故障信息做障代码),维修人员可从汽车的故障自诊断系统(通过诊断连接器)读取故障代码,然后根据故障代码查找与之相对应的故障原因和故障部位。但电控系统对自感电动势、静电、 With the development of automotive electronics technology, more and more electronic control systems on the car. Electronic control car ECU is the central nervous system control, it not only control functions, but also memory and self-diagnostic functions. When the car electronic control system failure, the ECU will store the corresponding fault information fault code), maintenance personnel from the vehicle fault self-diagnosis system (through the diagnostic connector) read the fault code, and then find the fault code The corresponding fault reason and fault location. However, the electronic control system of self-induced electromotive force, static electricity,