what is the switch on the back of a chevy a/c compressor
AC Switch on the back of Compressor. Re: AC Switch on the back of Compressor. The high pressure switch just grounds out a wire for the Vehicle Control Module is appears on the wiring diagram. Also, on the diagram, this is what it says there are and where they are located, but it could be wrong. Sometimes the information is spot on and sometimes it's wrong, depends on the vehicle.