CX48-P2300 Petroleum Transmission Power Train Electronic Control System Caterpillar


Determining Diagnostic Trouble Codes

Usage:

CX48-P2300 GDH

使用 Cat® 电子技师 (Cat ET) 维修工具确定诊断代码

将 Cat® 电子技师 (Cat ET) 维修工具连接到机器上。 将钥匙起动开关转到运行位置。 启动 Cat ET。 启动 Cat ET 后,将会建立与机器上的电子控制模块的通信。 Cat ET 将会列出电子控制模块。 选择所需的电子控制模块。 利用 Cat ET 确定诊断代码后,请参阅相应诊断代码的测试步骤。

参考故障诊断与排除, "维修工具"

现行诊断代码




图 1g02625416

现行诊断代码的典型 Cat® 电子技师 (Cat ET) 维修工具屏幕

下述步骤可能会导致记录新的诊断代码。 因此,执行任何步骤之前,先列出所有现行诊断代码,以确定系统有无故障。 在完成各个步骤时,清除因执行该步骤产生的诊断代码。

注: 执行步骤之前,一定要先检查所有断路器。 修复任何断路器跳闸的原因。

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 2g02625437

记录诊断代码的典型 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。 记录的诊断数据包括部件识别符(CID)、故障模式识别符(FMI)和故障的文字描述。 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。 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。

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

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