3406E, C-10 and C-12 On-highway Engines Caterpillar


0168-02 ECM Battery Power Intermittent (51)

Usage:

3406E 1LW
产生此代码的情况:

该状况说明发动机运转期间发动机控制模块 (ECM) 存在间歇性蓄电池供电状况。 如果蓄电池电压在没有返回的情况下消失,ECM 将不记录该故障诊断代码,同时发动机停机。

ECM 检测到下述情况时:

  • 点火钥匙开关处于接通位置。

  • 发动机正运转。

  • 发动机不能进行起动盘车。

  • ECM 至少已通电三秒钟。

ECM 检测到下述情况之一:

  • 蓄电池电压降到 6 VDC 以下至少 0.50 秒钟。

  • 最近七秒钟内三个电压读数低于 6 VDC。

系统响应:

ECM 可能会停止喷油。 这种状况取决于故障发生的时长。

检查发动机指示灯和报警指示灯可能亮起,就像点火开关刚转到接通位置后起动发动机一样。

引起该故障诊断代码的状况仍然存在时,发动机可能发生转速变化、间歇性停机或完全停机。

测试步骤 1. 进行以下的诊断步骤: 点火钥匙开关电路和蓄电池供电电路 - 测试

结果:

  • 正常 - 停止

Caterpillar Information System:

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