cant seem to figure out why the fuse is blowing! Removed trailer light harness and still blowing, disconnected both tail lights at the harness under the truck and still blows! Any ideas? Tried google and seen this has been a problem and some people are replacing the headlight switch!
I replace the fuse and they work! Take it for a short drive down the street and get back and it's blown.

 

Checked the headlight switch and it looks great, same with harness