Check the trailer wiring if there is any, these can cause shorting issues also there is a high mount stop light relay and a running light relay that can be causing the issue as well here are the wiring diagrams so you can see how the system works. Also check the front and rear sockets because they can heat up and melt. Check out the images (below). Let us know what happens and please upload pictures or videos of the problem.
Images (Click to make bigger)
Friday, February 3rd, 2023 AT 10:42 AM