So I have found the pressure switch on the high line, found out I need to change this, but can't find anything on whether CX7s have just one or have two. I understand there are other vehicles, makes and models, that do have to, but I'm just trying to confirm so I get what I need to replaced. I have already checked compressor, had to replace serptine belt and it's not locked up, had system vacced down and recharged, still nothing, so I'm to this now.