C-10, C-12, C-15 and C-16 Industrial Engines Caterpillar


E054 High Fuel Temperature Derate

Usage:

CPT372 1WZ
产生此代码的情况:

表 1
触发水平     设定点(秒)     复位水平     复位时间    

81 °C (178 °F) 至
91 °C (196 °F)    
0 至 120 秒     触发水平减去 2%     4 秒    

表 2
减额缓变率     最大减额    
1.5%/秒     30%    

系统响应:

"减额"启用时,警告灯将闪烁。

电子技师将在任一电子技师状态屏幕的第一个发动机状态框内显示 "Engine Derate(发动机减额)"。

ECM 将会在 Cat 数据链路上产生 EID 054 事件代码。 此事件代码将会显示在电子技师(ET)的诊断屏幕上。

ECM 将会在 J1939 数据链路上产生 SPN 174-FMI 16 事件代码。 此事件代码可能显示在 J1939 数据链路的接收装置上。

ECM 将会产生通过诊断灯显示的 65 闪存代码。

  • 燃油系统可能存在故障。

  • 燃油温度传感器可能存在故障。

测试步骤 1. 检查有无诊断代码。

  1. 将 ET 连接到维修工具接头上。

  1. 把钥匙开关转到接通位置。 发动机应处于停机状态。

  1. 检查有无任何激活或记录的诊断代码。

预期结果:

应没有任何诊断代码出现。

结果:

  • 正常 - 转至测试步骤 2。

  • 异常 -

    修复: 修理出现的诊断代码。 请参阅本手册"利用诊断代码进行故障诊断和排除"章节中的相关专题。确保修理后故障被排除。

    停止

测试步骤 2. 对燃油系统进行检查。

  1. 对燃油系统进行检查。 有关可能的原因,请参阅测试与调整中的相应专题。

预期结果:

燃油系统没有问题。

结果:

  • 正常 - 可能存在间歇性故障。

    修复: 监测发动机的运行。修理故障。确保修理后故障被排除。

    停止

  • 异常 -

    修复: 修理故障。确保修理后故障被排除。

    停止

测试步骤 3. 检查燃料温度传感器

进行下述诊断程序: 故障诊断与排除, "发动机温度传感器开路或短路 - 测试"

结果:

  • 正常 - 停止

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