349F and 352F Excavators Caterpillar


Determining Diagnostic Trouble Codes

Usage:

352F-VG A9J

使用操作员监视器确定故障诊断代码



图 1g03876120
(1) 向上键
(2) 向右键
(3) 向左键
(4) 向下键

使用箭头键导航菜单。

注: 沿屏幕底部分布的按钮的功能由显示在屏幕上每个按钮上方的符号定义。



    图 2g03876126

  1. 从"主菜单",导航到维修图标 (5),并按"确定"。


    图 3g03876122

  2. 出现提示时,在"维修"菜单中输入机器密码。 可使用监视器屏幕或开关面板小键盘输入密码。


    图 4g03876132

  3. 使用箭头键突出显示"诊断"。


    图 5g03876134

  4. "诊断"菜单包含以下菜单项:

    • 现行诊断代码

    • 记录的诊断代码

    • 现行事件代码

    • 记录的事件代码

    "现行诊断代码"将自动突出显示。 按"确定"查看现行代码。



    图 6g03875546

  5. The "Acitve Diagnostic Codes" menu displays any active codes in the CID - FMI format. 使用箭头键滚动浏览类别。 按"确定"显示突出显示的诊断代码的详情。


    图 7g03876141

  6. Review the provided information for diagnostic purposes. 记录的代码的详细信息将显示以下项目:

    模块 ID - 检测到该错误的 ECM 的控制模块 ID。

    部件 ID - 处于错误状态的部件 ID。

    故障模式 ID - 故障模式 ID

    FIRST(第一次) - 错误第一次发生的时间。

    LAST(最后一次) - 错误最后一次发生的时间。

    发生次数 - 错误发生的次数。

    WCI - 发生警告级别。



    图 8g03875580
    (6) 主页
    (7) 删除
    (8) 保存
    (9) 回路

  7. The diagnostic code can either be deleted or saved. 按删除键 (7) 删除记录的错误。 此时将显示删除确认屏幕。 要确认删除请求,请将光标移到 "YES(是)"选项,然后按 "OK(确定)"键。 要保存诊断代码,按保存键 (8)。

    注: 要查看"记录的诊断代码"屏幕,按返回键 (9),直到显示"诊断"菜单。 Then select "Logged Diagnostic Codes" from the menu.

Viewing Event Codes



    图 9g03876134

  1. Choose "Active Event Codes" from the "Diagnostics" menu.


    图 10g03876148

  2. "LOGGED EVENT CODES(记录的事件代码)"菜单以 EID - LEVEL 格式显示记录的事件。 突出显示所需的事件代码,并按"确定"查看事件的详情。


    图 11g03876151

  3. Review the provided information for diagnostic purposes. 记录的代码的详细信息将显示以下项目:

    模式 ID - 检测到该错误的 ECM 的控制模块 ID。

    WCI - 警告级别

    FIRST(第一次) - 错误第一次发生的时间。

    LAST(最后一次) - 错误最后一次发生的时间。

    发生次数 - 错误发生的次数。

    WCI - 发生警告级别。



    图 12g03875580
    (6) 主页
    (7) 删除
    (8) 保存
    (9) 回路

  4. The event code can be deleted or saved. 按删除键 (7) 删除事件。 此时将显示删除确认屏幕。 要确认删除请求,请将光标移到 "YES(是)"选项,然后按 "OK(确定)"键。 要保存事件代码,按保存键 (8)。

    注: 要查看"记录的诊断事件"屏幕,按返回键 (9),直到显示"诊断"菜单。 Then select "Logged Diagnostic Events" from the menu.

使用 Cat® 电子技师 (Cat ET) 维修工具确定故障诊断代码

  1. 将 Cat® 电子技师 (Cat ET) 维修工具连接到机器上的 ET 端口。

  2. 将钥匙开关转到 RUN(运转)位置。

  3. Start the Cat ET software on the laptop. Cat ET 将发起与机器电子控制模块(ECM)的通信。 After communication has been established, Cat ET will list the ECM''s that are used on the machine.


    图 13g03876152

  4. From the "File" menu, choose "Select ECM". Choose the desired ECM to view the diagnostic codes associated with that ECM.


    图 14g03876155

  5. Choose from either "Active Diagnostic Codes" or "Logged Diagnostic Codes".


    图 15g03876166
    现行故障诊断代码的典型 Cat ET 屏幕


    图 16g03876169
    记录的故障诊断代码的典型 Cat ET 屏幕。

  6. Review the code list. 激活的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。 The logged diagnostic code screen includes the CID, FMI, and a text description of the code. In addition, the logged diagnostic data includes the number of occurrences, and the first and last time the problem has occurred.

    注: 诊断信息记录在非易失性存储器中。 When the machine is powered up, the ECM clears any diagnostic trouble codes that have not been detected or active within the last 150 hours of machine operation.

  7. After the diagnostic trouble codes have been determined using Cat ET, refer to "Diagnostic Trouble Codes" in this manual. Find the code in the list to see which test procedure to use to diagnose the failure.

  8. 下述步骤可能会导致记录新的故障诊断代码。 因此,执行任何步骤之前,先列出所有现行故障诊断代码,以确定系统有无故障。 Clear the diagnostic trouble codes that were caused by the procedure when finished.

    注: Before performing a procedure, always check all circuit breakers and fuses. Repair the cause of any tripped circuit breaker or blown fuse.

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