G3500 Engines Caterpillar


Diagnostic Code Will Not Clear

Usage:

G3508 2TJ

可能的起因

  • 代码真确。 发动机故障。

  • 诊断复位开关电路故障。

  • 某一模块故障。

推荐的修理

代码真确

对该诊断代码进行故障诊断和排除,确认该诊断代码因真实故障应该予以显示。 如果该诊断代码不应显示,继续进行本程序。

诊断复位开关电路

对诊断复位开关电路进行故障诊断和排除。 请参阅故障诊断和排除, "诊断复位开关"。

模块故障

某一控制模块可能出故障。

如果发动机配备了可选配的空燃比控制,安装一个新ECM。 请参阅故障诊断和排除, "更换ECM"。 如果新的ECM操作正确,而原来的ECM却操作不正确,更换原来的ECM。 请参阅故障诊断和排除, "更换ECM"。

暂时安装一个新的电子点火系统(EIS)的控制模块。 请参阅故障诊断和排除, "更换EIS控制模块"。 如果新的EIS控制模块存在正确,而原来的EIS控制模块存在不正确,更换原来的EIS控制模块。 请参阅故障诊断和排除, "更换EIS控制模块"。

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