Electronic Control Module (ECM) - Replace
更换电子控制模块（ECM）前，确认更换是否必要。 ECM 很少是产生诊断代码的原因。
- 步骤
- 切断钥匙开关和断路开关。
- 拆下有故障的 ECM。
- 从 ECM 上断开线束。
- 确认更换用 ECM 的零件号正确。
- 将线束与 ECM 相连。
- 安装更换用 ECM。
- 接通断路开关和钥匙开关。
- 确定 ECM 是否已编程设定。 如果 ECM 尚未编程设定，将 Cat 电子技师（Cat ET）维修工具连接到机器诊断接头上。 Cat ET 将与 ECM 通信。 参见测试和调整, "电子控制模块（ECM）- 闪存编程"。
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