奥迪A4-B6轿车CAN总线系统及检测维修

CAN Bus System of AUDI A4-B6 And Its TroubleshootingE

以奥迪A4-B6轿车为例,详细说明了汽车局域网的概念、结构分类、传输原理。讨论了利用VAS5051示波器检测时的标准波形、故障波形及波形特点。介绍了总线系统中终端电阻的测量方法、读取测量数据块中的CAN总线通迅状态的读取及CAN总线的维修。

Taking AUDI A4-B6 as the examplethe conceptstructure categories and transmission principle of automotive local network is introduced in detail.When VAS5051 oscilloscope is used in failure diagnosisthe standard wave shapethe failure wave shape and their features are discussed.Measuring methods of terminal resistance of CAN bus systemfetching of CAN bus communication states from the measured data modulus and troubleshooting of CAN bus are introduced.