Looking for a 7.3 wiring diagram

I have a 2002 7.3 powerstroke with an 03 motor swap. Had a crank no start which was no power to the gpr. Some how the 12 volt constant was grounded. I havent been able to find a diagram on how those wires run to see if i put a power to a ground to cause this. Any help would me much appreaciated