i lost my owners manual and need to figure out what number fuse controls the lights for the trailer. our trailers lights work when hooked up to every car but my truck. the fuse has gone out before but i canno remember which one it is. if anyone could please let me know what fuse it is it would be great help...we leave tomorrow on a trip and need the trailers lights to be working

 

it is a 6.0 diesel

 

That's what your sig. says if you don't know it!

 

From the Owners Manual (2006 but probably not changed).
Trailer related fuses (under dash fuse panel):
Fuse....Rating....Description
20.......15A.......Trailer tow Electric Brake Controller (EBC)
28.......10A.......Trailer tow EBC Logic
38.......20A.......Trailer tow park lamps
101.....30A.......Trailer tow EBC
107.....20A.......Trailer tow battery charge
301.....Relay.....Trailer tow battery charge

Under hood fuse panel:
Fuse....Rating....Description
9........20A.......Trailer tow turn signals
20......10A.......Trailer tow back-up lamps
201....Relay.....Trailer tow right turn signal/stop lamp
202....Relay.....Trailer tow left turn signal/stop lamp

 

From your description I would check fuse #9 under the hood.

 

You can get your owner's manual here...

https://www.flmowner.com/servlet/Con...ionalEventPage