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
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