Secondary ECM Indicator Fault
可能的原因如下所列：
- 到辅助电子控制模块（ECM）的电压
- 辅助 ECM 个性模块
- 开路和/或短路状态
- ECM 断路器
- 将发动机控制开关（ECS）转到OFF / RESET（断开 / 复位）位置。 等待 15 秒钟。 起动发动机。 观察 Caterpillar 电子技师（ET）上的状态屏幕。 确认 ECS 的位置。 如果位置指示异常，则执行故障诊断与排除, "发动机控制开关（ECS）"中的诊断功能测试。
- 请参阅故障诊断与排除, "辅助 ECM/个性模块"中的诊断功能测试。
- 检查接头和导线有无以下问题：损坏, 腐蚀, 磨损 和 固定不当。 执行诊断功能测试故障诊断与排除, "检查电气接头"。
- 检查 ECM 的断路器。 复位断路器。
Caterpillar Information System:
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