CID 0274 FMI 04 Atmospheric Pressure short to ground
产生此代码的情况:
来自大气压力传感器的信号电压低于正常水平。
系统响应:
电子控制模块 (ECM) 将会记录该诊断代码。 ECM 将标记大气压力为无效数据，并使用默认值。
- 发动机可能出现低功率。
测试步骤 1. 进行以下的诊断步骤: 发动机压力传感器开路或断路 - 测试
结果:
- 与预期结果相符 - 停止
Caterpillar Information System:
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