CX31-P600-C11I, CX31-P600-C13I, CX31-P600-C15I, CX31-P600-C18I and CX31-P600-C9I Petroleum Power Train Packages and CX31-P600 Petroleum Transmission Power Train Electronic Control System Caterpillar


Determining Diagnostic Codes

Usage:

CX31-P600 GFY

使用 Caterpillar 电子技师(Cat ET)确定诊断代码

将 Caterpillar 电子技师(Cat ET)连接到机器上。 将钥匙起动开关转到运转位置。 启动 Cat ET。 Cat ET 会发起与机器上的电子控制模块的通信。 通信建立起来之后,Cat ET 会列出电子控制模块。 选择所需的电子控制模块。 使用 Cat ET 检测到诊断代码后,参考相应诊断代码的测试程序。

参考: 故障诊断与排除, "维修工具"

现行诊断代码



图 1g00859671
现行诊断代码的典型 Cat ET 屏幕

下述步骤可能会导致记录新的诊断代码。 因此,执行任何程序之前,先列出所有激活的诊断代码,以确定系统有无故障。 完成各个步骤后,清除步骤所引起的诊断代码。

注: 执行步骤之前,一定要先检查所有断路器。 排除跳闸断路器跳闸的原因。

Cat ET 中提供了显示现行诊断代码的屏幕。 该屏幕显示所有现行诊断代码。 现行诊断信息包括部件识别符(CID)、故障模式识别符(FMI)和故障的文字描述。

记录的诊断代码



图 2g00859762
记录的诊断代码的典型 Cat ET 屏幕

Cat ET 中提供了显示记录的诊断代码的屏幕。 该屏幕显示所有记录的诊断代码。 Cat ET 会记录间歇性诊断代码。 记录的诊断代码应包括一个 CID、一个 FMI 以及故障的文字描述。 此外,记录的诊断数据还包括故障出现的次数和两个时间标记。 一个时间标记显示故障第一次出现的时间,另一个时间标记显示故障最近一次出现的时间。

诊断信息记录在固定存储器中。 通电时,ECU 会清除过去机器运作 150 小时内未检测到的或未激活的所有诊断代码。

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