如何读取故障码

How to Read the Fault Code

电子控制汽油喷射发动机控制系统的电脑内部，都装有一个故障自诊断系统，该系统能在发动机运行过程中不断监测控制系统各部分的工作情况，并能检测出控制系统中大部分故障，将故障以代码的形式储存在电脑内。介绍了故障码的两种读取方法，即检测仪读取法和入工读取法。

A trouble self- diagnosing system is set up inside the computer in the control system of the electronic controlled gasoline injection engine. This system can supervise and control continuously the working conditions of each part of the control system during engine operations, and can measure most of the faults in the control system and store them by code type in the computer. Two ways of reading the fault codes are introduced in the paper, i. e. reading by inspecting and mea- suring device and by operator.