凯美瑞汽车发动机故障灯亮的故障排除案例分析

针对一辆丰田凯关瑞汽车行驶中出现发动机故障灯点亮的情况，结合电控系统的工作原理，查找故障成因，最后发现是加装的摄像头品质不良所致。通过该案例说明了在对汽车电控系统具体故障诊断的过程中，需要掌握扎实的基础理论知识。了解系统的结构和工作原理，学习先进的控制技术和修理方法，同时要合理运用诊断工具和检测设备，借助电路图以及维修手册等资料，详细分析故障原因，然后进行故障排除。

Case Study on Troubleshooting of Toyota Camry＇s Engine Fault-Light Lights

The fault light lighted during the running of a Toyota Camry car. In allusion to the situation and based on the work principle of electronic control system, it is found that the failure is caused by a extra installed camera with bad quality. The case indicates that during the troubleshooting process on electronic control system of cars, it is necessary to master theoretical knowledge, understand the structure and work principle of system and learn advanced control technologies and repair methods. Meanwhile, the diagnostic tools and detecting equip- ments should be used in reason, and the causes of failures should be analyzed in detail with the assistant data such as circuit diagram, service manual, etc. Finally, the failure can be removed.