Troubleshooting Trailer Wiring that All Flashes with Right Blinker
Question:
My 65Trailblazer camper exterior lights are all working, but the right turn signal causes ALL of the lights running and tail to flash. All of the connections are clean and free of corrosion, and I have tested the fixture and all of the connections with a circuit tester and found them all to be sound. I have also tested the vehicle where the harness connects, and it also tested correctly. Tonight I disconnected the right turn/ right tail light fixture and was surprised to see that all of the trailer lights continued to flash! Any ideas? I’m thinking it might be a short in the right turn wire, hidden somewhere within the walls of the camper? Maybe a nick in the wiring? I’m thinking of disconnecting the right turn wire from the wiring harness and running a fresh wire around the exterior of the camper to test my theory..... Or should I be looking for a grounding problem?
asked by: Gail
Expert Reply:
I believe you are correct and the issue is that you have a short in the right turn signal wiring that is most likely shorting to the running light circuit. I think running a jumper wire from the trailer connector direclty to the taillight assembly will be your best move at this point to confirm this. If this fixes the problem one solution would be to just run an all new wire for the circuit so that you don't have to trace the hard to find wiring in your camper walls.
Product Page this Question was Asked From
Continue Researching
- Article: Trailer Wiring Diagrams
- Q&A: Trailer Running Lights Do Not Work but Brake Lights and Turn Signals Do Work
- Article: How to Troubleshoot Your RV Air Conditioner
- Article: Brake Controller 7- and 4-Way Installation Kit (ETBC7)
- Article: Brake Controller Installation: Starting from Scratch
- Article: Testing Trailer Brake Magnets for Proper Function
- Q&A: How to Test Brake Controller without Trailer Connected
- Article: Troubleshooting 4 and 5-Way Wiring Installations
- Q&A: How to Make an Adapter to Go from Semi Truck 7-Way Round to RV Style 7-Way Blade on Trailer
- Article: Wiring Trailer Lights with a 7-Way Plug (It's Easier Than You Think)
- Q&A: Trailer Turn Signals Both Blink when Just Left Turn Signal is Activated
- Q&A: Troubleshooting No Running Lights on Trailer but Turn Signals and Brake Lights Work
- Q&A: Will The Curt Dinghy Wire Harness # C96JR Interfere With Activation Of A Blue Ox Patriot
- Q&A: Checking Trailer Lights Without Hooking Up to Vehicle?