CRH2A给水卫生系统DTC显示故障代码16,真空压力开关判断故障:真空发生器抽真空时间是()

CRH2A给水卫生系统DTC显示故障代码16,真空压力开关判断故障:真空发生器抽真空时间是()

A.7S-15S

B.8S-16S

C.9S-17S

D.10S-18S

正确答案是A