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在修理发动机电控系统故障时,最想看到的就是发动机故障指示灯有规律地闪烁。但有些故障需要在一定条件下,采用一定的方法才能检测到其故障代码,氧传感器的故障代码就属于这种代码。通过对氧传感器的电路原理的分析,利用二维坐标图形论述了凌志LS400型轿车氧传感器的动态检测方法,并用波形图说明了该种车型的故障码识别方法,最后指出了不同故障码的意义。
Engine repair in the repair of electronic control system failure, the most want to see is that the engine fault indicator light flashing regularly. However, some failures need certain conditions, using a certain method to detect the fault code, oxygen sensor fault code belongs to this code. Through the analysis of the circuit principle of oxygen sensor, this paper discusses the dynamic detection method of Lexus LS400 sedan oxygen sensor by using two-dimensional coordinate graph, and illustrates the fault code recognition method of this kind of vehicle with the waveform diagram. Finally, it points out the meaning of different fault codes .