Troubleshooting Camper Trailer Lights Not Working

Published 12/15/2021

Question:

I bought a new camper and i towed it from Ohio to Rhode Island and the running lights worked fine i parked the fifth wheel and it was parked 3 months. i hook up the plugs with the truck not attached and the lights will not work. tail lights,lt,rt and stop lights, back up and no haz. any suggestions

asked by: David B

Expert Reply:

It is not very common to get nothing in the way of your lights working or not. Typically you will get at least something working or partially working. I am sure you have already done this but make sure that the plug is fully seated when plugged into the trucks 7-way. Also, if your truck has both the truck bed 7-way and a 7-way at the bumper try the connector you haven't already tried to see if it works. If neither of those solves the problem I would move on to making sure your wires and connections are clean and debris free, especially the connectors in the trucks 7-way and the plug from the camper. You can also verify that you are getting power to the pins on the 7-way using a circuit tester like the # PTW2993. You can have someone sit in the truck and operate the turn signals and other functions to verify they have power when they are supposed to. If you are not getting power then you know the problem is on the truck side and you will want to check the wires to make sure they are all still in good condition. If you are getting the proper power then you know the issue is on the trailer side. Make sure the trailer connector is clean and debris free and that all of the wires are in good working condition. You should also make sure that all of your grounds are secure and attached to clean bare metal.

If you do all of this and are still experiencing issues then please reach out to me with what you have found and I can help you troubleshoot further.

expert reply by: Scott S