Rear end sitting low.

Founded the fuses and relays that deal with the air suspension. 39,47. 39 is the air pump. when i remove the fuse the pump no longer turns on, put it back in ,the pump turns on. I just went ahead and replaced 47. Air suspension solenoid. When I start the vehicle I do hear the pump running and does for a couple min then check air suspension comes on. Is this a light I could take to O'reilly' and they would hook up a scanner?