I found the wire that was making my truck start on fire. Can anyone tell me what the connectors are for that I circled in the picture. The wires are frayed on them and I have a Haynes and Chilton manuals, but they don't label these to plugs. I have also tried AllData at my school, I just got the diagrams that are in my manuals. Thanks for the help.

 

Just to get my bearings, that's the block on the pass side fender rail just back from the battery correct?

 

This is the interior fuse panel. One connector is the power input (both switched and constant) from the ignition barrel. The other is the output to the circuits in which the fuses are labeled.

So bassicly you have narrowed your issue down to every circuit in your truck At least you know where the frayed wires are. Fix them and you shouldnt have an issue unless there is an underlying cause.

 

Alright, thanks for the help.

 

See now that makes more sense. I was think the box on top was the diagnostics terminal that hangs off the junction box under the hood, but there seemed to be too many relays.