make sure it gets feed before you get another one... check fusible link FL9 and rela R5 in engine bay(eventually swap with R3(headlamp wash) for test hope you know that it will work only with all doors/taildoor closed...if no joy unplug the compressor and give direct feed with wires ... if it will not work then you need a new one...if it works with direct feed but not when it is supposed too we'll speak again