my trailer i use to haul mower around, the left turn signal works on trailer, the right signal does not. is there a fuse in the 2003 f-150 that controls right or left turn signals for trailer. truck lights work good, right and left work good. right lamp on trailer has green and brown wires, i wired up green to green brown to brown. i thoght maybe there was a fuse i should check. thanks

 

#19 in the underhood box, 10 amp. Refer to your owner's manual.

 

Check the power at the 4-pin connector. If there is power there, then one of your wires is not connected. If no power at the 4-pin, then fuse is a good place to start.

Owners manual lists all the fuses. If you have no hard copy, download a PDF from here.

 

thankyou sirs

 

if the left tirn signal works I'm getting power yes? could I still have a bad fuse even though the left works? thanks

 

That fuse is for the right stop/turn on the trailer. There's a separate fuse for the left one. Again, refer to your owner's manual - if you don't have one, download it. The 4 wires are as follows - ground, running lights (both), left stop/turn, and right stop/turn.

 

thank you, you are a scholar and a gentleman.

 

I've seem GLC called lots of things, but never that.

 

You are quite welcome!