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


MID 079 - CID 0650 - FMI 02

Usage:

IT14G 1WN
产生此代码的情况:

当控制装置接通时,控制装置查看线束代码信息。 如果触点不表示有效识别代码,则指示该故障。 参考下表获得特定机器的有效代码。

测试步骤 1. 检查线束代码

  1. 将钥匙起动开关转到断开位置。

  1. 从控制装置上断开机器线束。

  1. 把钥匙开关转到接通位置。

  1. 定位机器线束接头。

  1. 通过检查连续性来检查线束代码是否正确。

  1. 从线束触点 2 检查。 检查到线束触点 20 至 25。 参见下表了解正确的线束代码。

表 1
线束代码故障排除 (1) (2)    
控制装置接头触点     25     24     23     22     21     20     机器代码    
线束代码接头触点     1     3     4     5     6     7    
914 测试模式     O     O     O     O     O     G     21    
IT14 测试模式     O     O     O     O     G     O     22    
914     G     G     G     O     G     O     17    
IT14     G     O     G     O     G     G     19    
( 1 ) O 打开
( 2 ) G 接地

预期结果:

线束代码正确。 线束代码电路正常。

结果:

  • 是 -

    修复: 进行以下额外步骤:检查线束接头触点。 将线束连接至控制装置。 将钥匙起动开关转到接通位置。 清除相同激活的故障。 将钥匙起动开关转到断开位置。 然后将开关转到接通位置。 如果相同故障激活,请更换控制装置。

    停止

  • 否 - 线束代码电路故障。

    修复: 修理线束代码电路。 如有必要,更换线束。 清除故障。

    停止

Caterpillar Information System:

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