目前汽车已经完全使用了电控单元,而且日趋成熟可靠,与此同时,汽车维修行业也面临着一个新的挑战。因此,现在不仅要懂得汽车理论原理及其控制方式,还要在没专用检测仪器的前提下,利用万用表检测数据与维修资料对此并结合维修经验去诊断分析和排除汽车的隐性故障,避免盲目更换零部件。 At present, the car has been fully used electronic control unit, and increasingly sophisticated and reliable, at the same time, the automotive repair industry is also facing a new challenge. Therefore, not only to understand the theory of the car and its control method, but also in the absence of special testing equipment under the premise of the use of multimeter test data and maintenance information on this and combined with maintenance experience to diagnose and analyze the exclusion of hidden faults in the car to avoid Blind replacement of parts.