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故障现象一辆2004年产的奥迪A4L 1.8T车,客户反映该车空调不制冷。故障诊断接车后试车,将空调温度设置为最低,按下空调控制面板上的AUTO键,发现空调压缩机不工作。用故障检测仪检查,从空调系统中读得故障代码00819,含义为空调压力传感器(G65)断路或对电源短路;读取空调系统001组数据(表1),发现空调压缩机调节阀(N280)的控制电流为0.0 A,空调压力为33.0 bar(1 bar=100 kPa),由此
Fault phenomenon A 2004 Audi A4L 1.8T car, the customer reflects the car air conditioning is not cooling. Troubleshooting After the car to take the test, the air conditioning temperature is set to the lowest, press the AUTO key on the air conditioning control panel and found that the air conditioner compressor does not work. Check with the fault detector, read from the air conditioning system fault code 00819, meaning air conditioning pressure sensor (G65) open circuit or short to the power supply; read the air conditioning system 001 group data (Table 1), found that the air conditioning compressor control valve ) Has a control current of 0.0 A and air conditioning pressure is 33.0 bar (1 bar = 100 kPa)