How to Power Utility Light In Trailer That Has 4-Way Connector
Question:
Hello, I have a 6 x 12 enclosed trailer that has only one utility light inside and only works when the vehicles lights are on. Id like to add a second light and a switch so that both utility lights will turn on when plugged into my truck. Enclosed trailer has a 4-flat plug and truck has a 7 pin with a constant 12v supply. Im looking for help on how to wire both utility lights and switch. I will be converting the 4-flat on the enclosed trailer to a 7 pin plug for convenience. Thank you for the help.
asked by: Juan R
Expert Reply:
You are on the right track. You will need to convert the 4-way to a 7-way so that you can tap into the 12 volt accessory circuit of the connector to power the utility light.
For a 7-way with a 4 foot long section of wire you would want the part # H20043. Currently your interior light is ran to the running lights circuit of the 4-way wiring. You would need to run the light to the black wire of the new 7-way as that is for the 12 volt circuit.
I attached a chart that shows how the 7-way will wire to the rest of the circuits as well.
Product Page this Question was Asked From
7-Way Molded Trailer Wire Connector, 4' Long
- Trailer Wiring
- Trailer Connectors
- Trailer End Connector
- 0 - 5 Feet Long
- Plug and Lead
- 7 Round - Blade
- Hopkins
more information >
Featured Help Information
Miscellaneous Media
Continue Researching
- Video: Review of Optronics Trailer Lights - Clearance Lights - MCL40APB
- Shop: Trailer Hitch
- Article: Wiring Trailer Lights with a 4-Way Plug (It's Easier Than You Think)
- Q&A: How to Power Trailer Dome Light When Not Connected to Tow Vehicle
- Video: Review of Ark Camper Jacks - 2 Stabilizer Jack - ARK34FR
- Shop: Single Rocker Switch - On/On - SPDT - White
- Shop: Trailer Wiring
- Shop: Ark Drop Down Corner RV Stabilizer Jacks - 24" Long Corner Steadies - Silver - Qty 2
- Shop: Ark Drop Down Corner RV Stabilizer Jacks - 24" Long Corner Steadies - Black - Qty 2
- Q&A: How To Remove The Lens On LED Clearance or Side Marker Light # MCL40RB For Installation
- Q&A: How Much of Each Gauge of Wire Fit Inside a Wire Loom Comfortably
- Q&A: What Gauge Wire does 4-Way Trailer Wiring Use
- Q&A: Difference Between 1 and 2 Wire Trailer Clearance Lights
- Q&A: Solution to Hold Swinging Trailer Doors Open
- Q&A: Holding Trailer Doors Open Using Plungers or Hook and Keeper Holders
- Shop: TorkLift HiddenPower Under-Vehicle Battery Mount with Battery Box
- Shop: RV Interior Lighting
- Shop: 7-Way Molded Trailer Wire Connector, 4' Long
- Article: Trailer Wiring Diagrams
- Video: Stallion Stabilizer Jacks Review
- Video: NOCO Accessories AC Port Plug with Extension Cord Installation - Enclosed Trailer
- Video: Review of JR Products Wiring Parts - Rocker Switch SPDT - 37212635
- Shop: NOCO GEN On-Board Battery Charger - AC to DC - Waterproof - 2 Bank - 12V - 10 Amp
- Shop: NOCO Genius Multi-Bank Smart Battery Charger - AC to DC - 2 Bank - 6V/12V - 4 Amp
- Video: TorkLift Battery Boxes - Camper Battery Box - TLA7726 Review
- Video: Deka Battery Box Installation - Enclosed Trailer
- Article: Wiring Trailer Lights with a 7-Way Plug (It's Easier Than You Think)
- Shop: Front Mount Hitch
- Search Results: on off light switch
- Search Results: ill24cb
on Trailer Wiring
