Product Link 121S/300 Caterpillar


MID 122 - CID 0254 - FMI 12

Usage:

769C 01X
产生此代码的情况:

当 Product Link 检测到控制模块内部问题时,记录此诊断代码。 只有 Product Link 的 ECM 出现故障才能导致此诊断代码产生。 控制模块内无可维修部件。

测试步骤 1. 检查线束连接。

  1. 断开并清洁线束接头的触点。

  1. 重新连接所有线束接头。

  1. 将钥匙起动开关转到接通位置。

  1. 操作机器。

  1. 利用 Cat ET 确定 "CID 0254 FMI 12" 诊断代码是否存在。

预期结果:

存在 "CID 0254 FMI 12" 诊断代码。

结果:

  • 确定 - 存在 "CID 0254 FMI 12" 诊断代码。

    修复: 此故障没有得到排除。 ECM 不太可能有故障。 重新执行此诊断测试步骤。 如果未确定此诊断代码产生的根源,则更换 Product Link 的 ECM。 更换 Product Link 前,请联系您的 Caterpillar 技术通信员。 请参考系统操作、故障诊断与排除、测试和调整, "电子控制模块 (ECM) - 更换"。

    停止

  • 异常 - 不存在 "CID 0254 FMI 12" 诊断代码。 此时不存在该故障。 初始问题可能由于断开以及重新连接某个线束接头时电气连接不良或短路引起的。 使机器恢复正常运转。停止

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