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


0171-04 Ambient Air Temperature voltage low

Usage:

3406E 1LW
产生此代码的情况:

发动机控制模块 (ECM) 检测到以下情况:

  • 来自大气压力传感器的信号电压低于 0.2 VDC 超过 8 秒。

  • "允许怠速停机超越"被设定为 "基于外界温度"或 "基于 J1587 外界温度"。

  • ECM 至少已通电两秒钟。

系统响应:

ECM 将 65°C ()149 °F 默认为外界气温。 在卡特彼勒电子技师 (ET) 中,在 "外界温度传感器"状态的旁边将会显示 "诊断"。

当此代码激活时,"允许怠速停机超越"停用。

测试步骤 1. 进行以下的诊断步骤: 发动机温度传感器开路或短路 - 测试

结果:

  • 正常 - 停止

Caterpillar Information System:

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