3054E and 3056E Industrial Engines and Engines for Caterpillar Built Machines Caterpillar


ECM Will Not Communicate with Other Systems or Display Modules

Usage:

3054E 304

可能原因

  • ECM

  • 电气接头

  • 数据链路

建议的措施

  1. 将电子维修工具连接到维修工具接头上。 如果 ECM 与电子维修工具间不通信,请参阅故障诊断与排除, "电子维修工具与 ECM 间不通信"。

  1. 确保以下各项安装正确且无损坏。 请参阅故障诊断与排除, "电气接头 - 检查"。

    • J1/P1 ECM 接头

    • J20/P20 机器接口接头

    • 到显示模块的导线

    • 到其他控制模块的导线

  1. 对数据链路可能出现的故障进行故障诊断与排除。 请参阅故障排除, "数据链路电路 - 测试"。

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