CX28, CX31 and CX35 On-Highway Transmissions Power Train Electronic Control System Caterpillar


Electronic Control Unit - Replace

Usage:

CX31 B3X
在更换 ECU 之前,确保更换是必需要做的操作。 ECU 不太可能是故障的原因。 务必检查并确认 ECU 标有 "+ Battery(蓄电池正极)"的所有触点上有电。

注: 误用配置软件或软件不正确可能会导致 ECU 错误地报告诊断故障代码。 在更换 ECU 之前,使用正确的配置软件对 ECU 进行闪存设定来确认故障与误用软件无关。 请参阅测试和调整, "电子控制单元 - 闪存编程"。

步骤

  1. 连接 Caterpillar 电子技师(Cat ET)。 记录所有配置。

  1. 将断路开关和钥匙起动开关转到断开位置。

  1. 从 ECU 上断开机器线束接头。

  1. 确认更换的 ECU 的零件号正确。

  1. 安装更换用 ECU。

  1. 将机器线束与 ECU 相连。

  1. 将断路开关和钥匙起动开关转到接通位置。

  1. 检查配置是否正确。 如有必要,采用 Cat ET 安装配置软件。 请参阅本手册中的测试和调整, "电子控制单元 - 闪存编程"一节。

  1. 清除所有因进行前几步骤产生的诊断故障代码。

  1. 确认 ECU 正常工作。

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