I HAVE A MAXIMA. IT HAPPENED TWICE TO BOTH OF MY CARS (BOTH MAXIMA)

IF YOU PUT CHANGE ON THE TOP PART OF DASH. IT WILL SLIDE THROUGH THE CRACKS. CAUSING THE A/C UNIT TO SHORT OUT . IF THIS HAPPENS TURN THE KEY TO THE ON POSITION CHECK GAUGES AND A/C CONTROL . ARE THEY WORKING?? IF THE AWNSER IS NO, THEN REMOVE OR UNPLUG THE A/C MODULE AND THE CAR SHOULD START UP---- REPLACE THE MODULE----- IF YOU WANT A/C....SHAKE THE MODULE SEE IF YOU HEAR THE PENNY OR IF IT SMELLS BURNED.......... THANK FOR READING......