0105-03 Intake Manifold Air Temperature voltage high (38)
产生此代码的情况:
发动机控制模块 (ECM) 检测到以下情况:
- 来自进气歧管空气温度传感器的信号电压高于 4.95 VDC 超过 8 秒。
- 发动机冷却液温度高于 −10 °C (15 °F)。
- ECM 至少已通电两秒钟。
系统响应:
ECM 将记录诊断代码并触发快照。 当该诊断代码变为激活状态 10 小时后,检查发动机指示灯点亮。 ECM 将 40 (C)104 °F 默认为进气歧管空气温度。 如果增压压力高于 70 kPa (10 psi),ECM 将会打开冷却风扇。
如果出现下列情况,诊断代码将被禁止:
- 环境气温低于 −30 °C (−22 °F)。
- ECM 已启动了发动机的极度寒冷模式。
- 应用配备了环境温度传感器。
如果所有条件都满足,环境气温将被用作进气歧管温度直至发动机退出极度寒冷模式。
无
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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