Troubleshooting Trailer Running Lights Circuit Not Functioning

Question:

Can somebody please help me out that the running lights on my trailer is not working the turn signal is working an emergency lights is working on it but the running lights wont work

asked by: RODERICK B

Expert Reply:

The running light circuit is on a different wire than the turn signals and emergency flashers so most likely there's an issue on circuit specifically. Typically when we see this problem it's corrosion on that circuit of the trailer connectors that cause the problem. Try inspecting the pins of the connector on both the vehicle and trailer to see if you can find any corrosion and clean as needed. I also attached a help article on trailer wiring for you to check out as well.

expert reply by: Jameson C