I HAVE A 2004 SILVERADO WITH TOW PACKAGE. THE RIGHT TURN SINGNAL LUG ON THE PLUG IN BROKE OFF AND SHORTED ACROSS THE CENTER POLE TERMINAL AND BLOWN RTS FUSE. I REPLACE THE FUSE AND I DO HAVE ALL LIGHTING TO PLUG BUT I DO NOT HAVE 12VOLTS FOR THE TRAILER BATTERY DOES ANYONE KNOW WHERE TO LOOK FOR THE FUSE LOCATION I HAVE CHECKED ALL FUSE'S IN THE CAB AND ENGINE AREA ALL FUSE ARE GOOD I'AM LOST NOW IS THERE A RELAY SOMEWHERE ANY HELP WOULD BE GRAND ( THANK)ONEPLUMCHEV

 

If you can't find a fuse in the engine then there must be a relay in that area some where. I'll look when I get under the hood of mine tomarrow and see what I can see.