Repair Safety Notice:
This information is for general instructional purposes only. Vehicle repair can be dangerous.
Verify all information, follow manufacturer service procedures, use proper tools and safety equipment,
and consult a qualified repair shop when needed.
STRAILER
AUTOMOTIVE REPAIR CONTRIBUTOR
54,128 POSTS
Hello,
It sounds like you have a bulb that is melted in its socket. I would start by removing all bulbs and inspecting them and there socket contacts.
Here are two guides and the brake light wiring diagrams so you can see how the system works: