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故障现象一辆行驶里程约为1.7万km的2012款一汽大众迈腾轿车,客户反映该车空调不制冷。故障诊断接车后,首先试车验证故障现象属实。连接VAS 5052A读取故障代码,读得的故障代码为B10ABF0,含义为“制冷剂压力未达到下限”。根据该故障代码的相关提示,检查空调系统管路及空调压缩机,发现空调压缩机限压阀打开,制冷剂泄漏(图1)。针对空调压缩机限压阀打开的故障现象,初步判断为空调系统压力过高,其可能的故障
Trouble phenomenon A mileage of about 17000 km of the 2012 FAW-Volkswagen Magotin sedan, the customer reflects the car air conditioning is not cooling. After troubleshooting the car, the first test to verify the fault phenomenon is true. Connect the VAS 5052A to read the error code. The error code read is B10ABF0, meaning “refrigerant pressure has not reached the lower limit”. According to the relevant tips of the fault code, check the air conditioning system piping and air conditioning compressor and found the air conditioner compressor pressure limiting valve is open, the refrigerant leak (Figure 1). For air conditioner compressor pressure limiting valve opens the fault phenomenon, initially judged as air conditioning system pressure is too high, its possible failure