Dome Lights Do Not Come On In a Wells Cargo 24 Foot Trailer
Question:
I have a Wells Cargo 24ft trailor with ceiling running lights inside lights dont turn on but the outside lights all around the trailor work. The dome lights have a switch on each light with a main switch on the wall tried every combination still no lights. Coming from the main switch directly to my car battery the dome lights work with switch lights on lights off flicking switch
asked by: repair
Expert Reply:
Your outside lights are working because they are attached to the running light circuit on the vehicle. It sounds to me as if the 12 volt circuit in your connector is not wired properly or is not present. I would check the connector on the vehicle with a circuit tester, item # PTW2993 if needed, for a constant 12 volt circuit. If you find a 12 volt circuit in the vehicle side connector then you will need to figure out which circuit on the trailer connector goes to the inside lighting. Once you find the proper wire on the trailer side you will need to attach it to the connection point in the trailer connector that corresponds to the 12 volt circuit on the vehicle side.
![Bob G](https://images.etrailer.com/static/images/catg/people/287_tn.jpg)
Products Referenced in This Question
Product Page this Question was Asked From
Optronics 12V RV Dome Light - Double - 12" Long x 4-1/4" Wide - White Housing
- RV Interior Lights
- Dome Light
- Bright White
- Switch
- Surface Mount
- Incandescent Light
- 12V
- 12L x 4-1/4W Inch
- White
- Optronics
more information >
Featured Help Information
Miscellaneous Media
Continue Researching
- Q&A: Troubleshooting Interior Lights Not Working for Enclosed Trailer
- Shop: Trailer Wiring
- Q&A: Options for Adding Interior Lighting to Enclosed Cargo Trailer
- Q&A: Trailer Running Lights Do Not Work but Brake Lights and Turn Signals Do Work
- Article: Trailer Wiring Diagrams
- Shop: Hook Probe Circuit Tester
- Shop: T-One Vehicle Wiring Harness with 4-Pole Flat Trailer Connector
- Shop: RV Interior Lighting
- Q&A: Recommended Lithium Battery Compatible Power Converter For Parallax 7355
- Shop: 7- and 4-Pole Trailer Connector Socket w/ Mounting Bracket - Vehicle End
- Search Results: 44649
- Video: Choosing the Right Trailer Wiring
- Article: Brake Controller 7- and 4-Way Installation Kit (ETBC7)
- Shop: Trailer Hitch
- Q&A: What is the Difference Between a 4-Way and 7-Way Trailer Connector
- Search Results: 68149
- Shop: Tekonsha Prodigy P3 Trailer Brake Controller - 1 to 4 Axles - Proportional
- Video: Choosing the Right Brake Controller
- Shop: Brake Controller
- Q&A: Seal With Dimensions to Replace 171255UC
- Shop: Curt Powered Tail Light Converter with 4-Pole Flat Trailer Connector
- Search Results: 25580
- Video: Lippert Solera Slider Slide-Topper Review
- Article: Brake Controller Installation: Starting from Scratch
- Shop: Fifth Wheel Hitch
- Q&A: Replacement for Demco Master Cylinder 05680-C for Drum Brakes
- Search Results: dust cap
- Video: Tow Ready 4-Pole Mounting Bracket Installation
- Shop: Gooseneck Hitch
- Article: Trailer Tire Sizing