3500B Engines for 776D, 777D, 784C, 785C, 789C and 793C Off-Highway Trucks Caterpillar


E035 Loss of Coolant Flow Warning

Usage:

785C 1HW
产生此代码的情况:

电子控制模块(ECM)检测到以下所有情况:

  • 发动机至少运转了八秒钟。

  • 没有冷却液流的情况至少达八秒钟。

  • 未使用地面停机开关关闭发动机。

系统响应:

ECM 会记录此警告。

  • 冷却系统可能存在问题。

  • 冷却液流量开关可能存在问题。 有关可能导致相关问题的原因,请参考故障诊断和排除, "冷却液流量开关"部分的诊断程序。

  • 地面停机开关可能存在问题。

测试步骤 1. 检查有无"当前"诊断代码

  1. 将卡特彼勒电子技师(ET)连接到维修工具连接器上。

  1. 将钥匙开关转到 ON 位置。

  1. 检查有无当前或记录的诊断代码。

预期结果:

没有任何诊断代码存在。

结果:

  • 与预期结果相符 - 继续执行测试步骤 2。

  • 与预期结果不相符 -

    修复: 修正存在的诊断代码。 请参考本手册"对诊断代码进行故障诊断和排除"部分的相应主题。确保修正后问题被排除。

    停止

测试步骤 2. 检查冷却系统

  1. 检查冷却系统。 有关可能导致相关问题的原因,请参考故障诊断和排除, "冷却液温度过高"部分的诊断程序。

预期结果:

冷却系统没有问题。

结果:

  • 与预期结果相符 - 可能存在间歇性问题。

    修复: 监测发动机的运转。如果问题间歇发生,请参考故障诊断和排除, "检查电气连接器"部分的诊断功能测试。确保修正后问题被排除。

    停止

  • 与预期结果不相符 -

    修复: 修正问题。确保修正后问题被排除。

    停止

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