2nd Gen (2012), No trailer lights

Fuses under hood and in cab all good, no power on Brown wire coming into the back of trailer plug. Looking for electrical schematic...fuse to trailer plug?

 

Not to beat a dead horse, but did you check all the tow fuses? There are quite a few labeled in there.

My trailer parking lights weren't working either. Couldn't tow at night. Put in a new 7 pin rear harness. Noticed still no illumination power. Had to slow myself down and read thru all the fuses.

 

Welcome from the wet side of WA.

Hit the wiring diagrams link in my signature, and you will find what you need for diagrams...

 

Thank you for the 2011 Tundra wiring diagram, Sir. Exactly what I needed and problem solved.