Cobaltchat.com

FYI-
On my 21 F150
My utility trailer had light issue, brake and turn signal working but no running lights
Found a fuse bad, Slotted M Case Fuse, that's new to me. Of course that was after I tore lights apart and replaced a connector on my pigtail, fuse didn't pass continuity test, pretty sure this will fix my problem.

FYI- after replacing the fuse, I had a trailer alarm saying left side light had issue, sure as heck I had a short where wiring had rubbed and was broken. Pretty cool technology to tell me that.

Crazy stuff now a days!