CID 0274 FMI 03 Atmospheric Pressure open/short to +batt
产生此代码的情况:
大气压力传感器的信号电压高于 4.8 VDC 持续至少八秒钟。
系统响应:
电子控制模块（ECM）将会记录该诊断代码。 ECM 将大气压力标记为无效数据，采用缺省值 100 kPa15 (psi)。
功率偏低
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短路 - 测试
结果:
- 正常 - 停止
Caterpillar Information System:
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