320D, 321D, 323D, 324D, 325D, 326D, 328D, 329D, 330D, 336D, 336D2, 340D and 340D2 Excavators, 324D Forest Machine and 323D MHPU, 324D MHPU, 325D MHPU, 329D MHPU, 330D MHPU and 336D MHPU Mobile Hydraulic Power Units Machine Electronic Control System Caterpillar


Electronic Control Module (ECM) - Replace

Usage:

325D L A3R
在更换 ECM 之前,确保更换是必需要做的操作。 ECM 不太可能是故障的原因。 务必检查并确认 ECM 标有 "+ Battery(蓄电池正极)"的所有触点上有电。

注: 配置软件损坏或软件不正确可能会导致 ECM 错误地报告诊断代码。 在更换 ECM 之前,使用正确的配置软件对 ECM 进行闪存设定来确认故障与软件损坏无关。 请参阅测试和调节, "电子控制模块(ECM)- 闪存编程"。

步骤

  1. 将断路开关和钥匙起动开关转到 OFF(断开) 位置。

  2. 从 ECM 上断开机器线束接头。

  3. 确认更换的 ECM 的零件号正确。

  4. 安装更换的 ECM。

  5. 将机器线束与 ECM 相连。

  6. 将断路开关和钥匙起动开关转到 ON(接通)位置。

  7. 如有必要,采用 Electronic Technician (ET) 安装配置软件。 请参阅本手册中的测试和调整, "电子控制模块(ECM)- 闪存编程"一节。

  8. 确认 ECM 正常工作。

Caterpillar Information System:

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