Troubleshooting Malfunctioning Left Turn Signal on a Boat Trailer
Question:
My left signal was not working upon plugging it in for the first time since last fall. I changed both bulbs and it started working. When I turn my van lights on, the left signal did not light up but the signal itself also stopped working. It appears that the right tail light is a little brighter. The plug from my van wiring appears to be a little bent. Do you think I need to splice in a new plug or should I try somehing else? Thanks
asked by: Ross A
Expert Reply:
If the connector on your van seems damaged, you should by all means replace it. The symptoms you mention also would lead me to believe you might have an insufficient or weak ground connection somewhere in the system. Check the point on the trailer tongue where the ground from the trailer connector attaches. Make sure this connection is secure and not corroded. Check the connections for each lamp, as well. A trailer lamp will either have a separate ground wire that grounds to the trailer frame, or the lamp will ground by the mounting studs being in direct contact with the trailer frame. Make sure these connections are also tight and not corroded.
If you would care to reply with the year, make and model of van you have, I'd be happy to make some specific recommendations for you for a replacement trailer connector. I've linked you to our trailer connector troubleshooting help article.
Product Page this Question was Asked From
Continue Researching
- Article: Trailer Wiring Diagrams
- Q&A: Parts Needed For Flat Towing a 2024 Ford Maverick Behind a 2010 Winnebago Journey With Air Brakes
- Q&A: Caliper Bolts for AL-KO/Hayes Disc Brake Caliper BP18-050
- Q&A: Replacement Oil Seal for AL-KO 568303
- Q&A: Does The Progressive Dynamics PD4655V Have A Lithium Jumper
- Q&A: Which Instructions Are Used Installing a Roadmaster Brake-Lite Relay in a Ford F-150 w/ Neutral Tow
- Article: Wiring Trailer Lights with a 7-Way Plug (It's Easier Than You Think)
- Q&A: Recommended Diode for Charging Line From Motorhome to Towed Vehicle (Toad)
- Article: Parts Needed to Add Electric Drum Brakes to a Trailer
- Article: Brake Controller 7- and 4-Way Installation Kit (ETBC7)
- Article: Trailer Maintenance Schedule
- Q&A: What Gauge Wire does 4-Way Trailer Wiring Use
- Article: Trailer Tire Sizing
- Article: Flat Towing Package for 2014-2015 Chevrolet Equinox