120M, 12M, 140M, 14M, 160M, 16M and 24M Motor Graders Monitoring System Caterpillar


Using Caterpillar Electronic Technician to Determine Diagnostic Codes

Usage:

12M B92
执行以下步骤,使用 Cat® 电子技师(Cat ET)维修工具来确定诊断代码:

  1. 将 Cat ET 连接到机器上。

  1. 接通钥匙开关。

  1. 启动 Cat ET。

    Cat 电子技师将发起与机器上电子控制模块(ECM)之间的通信。 通信建立后,Cat ET 将列出 ECM。

  1. 选择预期 ECM。

  1. 利用 Cat ET 确定诊断代码后,参见针对预期诊断代码的测试步骤。

参考故障排除, "维修工具"

现行诊断代码




图 1g02355999

显示激活的诊断代码的典型 Cat® 电子技师(Cat ET)维修工具屏幕

Cat ET 上有现行诊断代码屏幕。 屏幕显示部件标识符(CID)、故障模式标识符(FMI)和故障的文本说明。

下述步骤可能会导致记录新的诊断代码。 因此,在进行任何步骤之前,首先列出所有激活的诊断代码,然后执行所需的步骤。 清除由此步骤产生的所有诊断代码。

注: 执行步骤之前,一定要先检查所有断路器。 修复所有已切断的断路器的故障。

记录的诊断代码




图 2g02356001

显示记录的诊断代码的典型 Cat 电子技师屏幕

Cat ET 上有记录的诊断代码屏幕。 Cat 电子技师会记录间歇性诊断代码。 记录的诊断数据包括部件标识符(CID)、故障模式标识符(FMI)和故障的文本说明。 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。 时间标记显示了第一次发生故障的时间和最后一次发生故障的时间。

诊断信息记录在非易失性存储器中。 通电时,ECM 会清除过去机器运作 1000 小时内未检测到的或未处于现行状态的所有诊断代码。

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