E009 High Altitude Derate
产生此代码的情况:
电子控制模块（ECM）检测到大气压力过低。 可以在使用事件代码进行故障诊断与排除故障诊断与排除, "事件代码"中找到本事件缺省设定与范围的信息。
系统响应:
ECM 将会记录此诊断代码。
可能对性能的影响:
E009-2（减额）
- 发动机将减额。
故障诊断和排除:
- 发动机运行海拔高度过高。
- 大气温度传感器可能有问题。
测试步骤 1. 检查有无诊断代码
- 将 Caterpillar 电子技师（ET）连接到维修工具接头上。
- 恢复 ECM 的电源。
- 检查有无任何激活的或记录的诊断代码。 至少等待 30 秒钟以使代码得以激活。
预期结果:
应无任何诊断代码存在。
结果:
- 正常 - 发动机仍在降额。 发动机运行海拔高度过高。
停止
- 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
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