It introduces the application and the method of self-diagnosis system of 5A-FE Toyota engine, especially in the identification, read process, significance of fault codes and the like.

• 从故障代码的人工识别方法、读取步骤、故障码信息含义及相应故障情况等方面,介绍了丰田5A-FE型发动机自诊断系统的应用情况及使用方法。