Troubleshooting Thinline LED Trailer Light that Was Partially Lighting and Then Stopped

Published 11/14/2022

Question:

I have these lights on my 2018 Cedar Creek fifth wheel. While using it a couple of weeks ago, I noticed only half of one of the tail lights was lit. Today when I checked it, none of the lights came on for this light, although the other 3 worked. Brake and turn signal functions worked on all lights. Any thoughts on troubleshooting?

asked by: Steven S

Expert Reply:

Check the connection the wires of the ThinLine LED part # STL69RB are making to your trailer wiring. It sounds like the running light circuit isn't making a solid connection. If the wiring is good though it would be time to replace the light since that would indicate the light is damaged.

expert reply by: Jameson C