980K Wheel Loader Electrohydraulic System Caterpillar


MID 082 - CID 2286 - FMI 13

Usage:

980K GTZ
产生此代码的情况:

该诊断代码与辅助功能 3(指轮)位置传感器有关。 该位置传感器向机具 ECM 提供 PWM 输入信号。 如果占空比超出标定 ± 6%,但仍在可接受范围内,FMI 13 代码将激活。

该传感器是 PWM 传感器,其工作频率约为 500 ± 100 Hz。 以小增量测量得到供应给 ECM 的 PWM 信号的占空比。 传感器占空比的变化不能用数字万用表测量。

测试步骤 1. 标定

  1. 执行传感器的标定步骤。 关于正确的校准程序,请参阅本手册的测试和调整, "校准"部分。

预期结果:

成功执行标定步骤。

结果:

  • 正常 - 成功执行标定步骤。 恢复机器的正常运转。停止

  • 异常 - 标定不成功。

    修复: 重新执行传感器的标定步骤。如果第二次标定程序不成功,更换位置传感器。更换传感器后,请参阅本手册的测试和调整, "标定"章节以了解正确步骤。 如果更换和标定新传感器后问题依然存在,则表明 ECM 可能已经损坏。更换 ECM 之前,请务必联系您的代理商的技术通信员征求 Caterpillar 可行的意见。 此咨询可能影响修理时间。 如果没有找到该诊断代码的原因,则应更换 ECM。 有关更多信息,请参阅本手册中的测试和调整, "电子控制模块(ECM)- 更换"章节。

    停止

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