GMC Repair: 2001 GMC Yukon, gmc yukon, fuse box

Question
I'm having problems with the tow hitch electrical connection. My trailer lights worked once, and now only my right brake and right blinker lights work? I got a new adapter but I have the smae problem. Any ideas?

Answer
Hi
In the underhood fuse box, there is a TRL L fuse.
I would suspect that as being blown.
The ONLY circuit this fuse feeds is the trailer left side. Thats it.
If it is blowing, chances are your trailer wiring MAY need attention.
I hope this helps
Follow back, if needed.
Pawl