Can someone steer me to a colour coded diagram for my '97 E350 (old FedEx truck) 5.4/E40D, I've got a no start/no power situation at the ignition start switch, that includes a major voltage drop. Bad wire somewhere likely the cause, need to know what goes where so I can start isolating circuits to trace problem. Ignition, fuel pump, fuse box diagrams would be great.
Thanks