1999 Sierra 2500, trailer plug shorted and melted, dead truck

[wdblack]

Hi guys, I had a short on the trailer plug, I don't know how it happened but the positive wire touched the body and everything melted, when I saw the smoke, I ran to disconnect the battery.

 

Battery is now reconnected, full charge but there's no current anywhere in the truck (no lights, no power lock, no starter, etc.).

 

I've checked the wires, nothing is melted, fuses are good, I don't really know what else to check, a little help would be great.

[richard wysong]

Power comes from the +battery wire to the underhood fuse box. Take a test light and see where you lose power. Do not overlook the ground side.