MID 018 - CID 0553 - FMI 11 Oxygen Signal present when it should not have been
产生此代码的情况:
进行氧气标定的第2步的过程中，氧气信号被检测到。 发生下列任一状况：
- 氧气继电器的常开触点短路。
- 自电子控制模块(ECM)至氧气继电器之间的信号线对+蓄电池短路。
- 氧气缓冲器的电源线对+蓄电池短路。
- 氧气传感器的信号线对某一正电压源短路。
- ECM出故障。
系统响应:
如果氧气传感器正被标定，标定将被终止。 现有的标定数值将保持不变。
该诊断代码可以在数字诊断工具(DDT)、发动机控制模块(ECM)或卡特彼勒电子技师(Cat ET)上查看到。
如果需要进行的氧气标定没有完成，发动机性能和排放将会受到影响。
测试步骤 1. 进行以下的诊断步骤: 氧气传感器信号
结果:
- OK - 停止
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