总线故障是对CAN系统的一种极大的威胁。
现场总线在应用中主要考虑其通信电缆、通信电源故障，“T”型分支或终端电阻故障也会引起总线故障。
The main facts we should consider are the trouble caused by the communication cable, communication power, t type branch or the terminal resistor problem in the application of site bus technology.
简要阐述大众车系CAN数据总线系统的原理、组成，结合实例分析CAN数据总线系统的故障原因与检修方法。
The principle and composing of the CAN bus system on VOLKSWAGEN series are introduced here. The fault causes and inspection ways of this system are analyzed with examples.
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