914G Compact Wheel Loader and IT14G Integrated Toolcarrier Transmission Electronic Control System Caterpillar


MID 079 - CID 0367 - FMI 02

Usage:

IT14G 1WN
产生此代码的情况:

当 ECM 检测到输入组合不正确时,指示该故障。 ECM 检测行驶控制电路的状态。 当输入与下表相符时,状态正常。

测试步骤 1. 检查电路是否正常工作。

  1. 将起动开关转到断开位置。

  1. 从控制装置上断开线束接头。 检查线束接头上的连续性。 使用下表检查开关所有三个位置的各输入的状态。

    表 1
    开关状态    
    模式     开关位置     E701-PK 电路(输入 1)     F748-WH 电路(输入 2)    
    ON(接通)     向上     闭合     开路    
    关闭     中心对齐     开路     开路    
    自动     向下     开路     闭合    

预期结果:

工作正常。

结果:

  • 是 -

    修复: 检查接头触针。 重新连接线束接头。 将开关转至接通位置。 如果故障仍然存在,更换控制装置。

    停止

  • 否 - 工作不正常。 转至测试步骤 2。

测试步骤 2. 检查开关

  1. 在开关处,检查工作是否与表中相符。

  1. 检查端子 2 到端子 1 和 3 之间的连续性。

预期结果:

工作正常。

结果:

  • 否 -

    修复: 开关出现故障。 修理或更换开关。

    停止

  • 是 -

    修复: 线束有故障。 修理或更换线束。

    停止

Caterpillar Information System:

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