论文部分内容阅读
故障现象一辆2016年产捷达车,搭载CPDA发动机和手动空调,客户反映,该车空调不制冷。故障诊断接车后试车,起动发动机,接通鼓风机开关和A/C开关,A/C指示灯正常点亮;将空调温度调节旋钮调至最冷位置,出风口吹出的是自然风。连接空调歧管压力表,测得高、低压管路的制冷剂压力均为6 bar(1 bar=100 kP a)左右,说明制冷剂量充足,且空调压缩机不工作。用故障检测仪VAS 6150B检测,发动机电控系统中存储有故障代码P053600,含义为蒸发器温度传感器信号不可靠;记录并清除
Fault phenomenon A 2016-produced Jetta, equipped with CPDA engine and manual air conditioning, the customer reflects that the car air-conditioning is not cooling. Fault Diagnosis Take the car after the test, start the engine, turn on the blower switch and the A / C switch, the A / C indicator lights normally; adjust the air conditioner thermostat to the coldest position, and the outlet blows natural wind. The air conditioner manifold pressure gauge is connected and the measured refrigerant pressure for the high and low pressure lines is about 6 bar (1 bar = 100 kPa), indicating sufficient refrigerant quantity and no air conditioner compressor operation. With the fault detector VAS 6150B detection, the engine electronic control system is stored fault code P053600, meaning the evaporator temperature sensor signal is not reliable; record and clear