一汽大众捷达牌轿车电路原理图(上)

详细分析一汽大众捷达牌轿车中电源、起动、点火、发动机控制、照明灯及信号灯、风窗清洁装置、空调系统等电路的工作原理，介绍各电路的构成，给出电路原理图。

This paper analyses in detail the working principles of power, starting, ignition, engine control,illuminator, signal light, windshield cleaner unit, air condition system on JETTA car of the No. 1 Auto companyVOLKSWAGEN and introduces the circuits structures and gives the circuits key diagrams.