Troubleshooting Trailer Taillights Where None Work

Question:

Just wired my trailer and no lights anywhere hooked my tailgate light up and that works?

asked by: Ryan

Expert Reply:

So the problem is on your trailer then if the trailer wiring harness works to light up your tailgate lights.

Make sure that the trailer side connector are clean and free of corrosion inside and out. The main connector grounds should be attached to clean and corrosion free bare metal surfaces. The light grounds should also be attached to clean and corrosion free bare metal surfaces. If there is anything between a light ground and the metal trailer frame or if the trailer has an aluminum frame, tilt bed, or folding tongue, any of these things can interrupt the ground. Running jumper wires from the light grounds to the main trailer connector ground can help.

expert reply by: Jameson C