3524B Engines for Off-Highway Trucks Caterpillar


ECM Will Not Communicate with Other Systems or Display Modules

Usage:

3524B 1AW

可能的原因

  • 电子控制模块(ECM)

  • 连接器或导线问题

  • 卡特彼勒数据链路

  • CAN 数据链路(如适用)

建议措施

ECM

连接卡特彼勒电子技师(ET)。 如果该 ECM 未能与卡特彼勒 ET 进行通信,请执行故障诊断和排除, "电子维修工具不能与 ECM 通信"部分的诊断功能测试。

连接器或导线

检查 ECM 连接器是否正确安装。 检查电路中的所有机器连接器或用户连接器是否正确安装。 请参考故障诊断和排除, "检查电气连接器"部分的诊断功能测试。

卡特彼勒数据链路

确认 CAN 数据链路没有开路或短路。 请参考故障诊断和排除, "卡特彼勒数据链路"部分的诊断功能测试。

CAN 数据链路(如适用)

确认 CAN 数据链路没有开路或短路。 请参考故障诊断和排除, "CAN 数据链路"部分的诊断功能测试。

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