If you know of Parts Source store they do print outs for free of diagrams for vehicles...I know they do electrical as I've printed it off before, but I'm not sure what else it prints off.
Also the library has ever book by Chilton and whoever for vehicle manuals and repair books.
I've basically pulled fuses and looked at them if I didn't know which fuse goes to what...lol..takes longer, but it has always worked. The centre part of the fuse has a u shaped line...but that line if broken if the fuse isn't good.
Sorry...maybe not much help...I'm sure someone in this site can probably help you out better