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Troubleshooting No Trailer Running Lights Circuit on Factory Wiring 4-Way


Everything works except running light checked the power pronge on the truck and theres no power . My trailer hitch and trailer connectors are all factory installed


Expert Reply:

Since your trailer wiring is factory wiring it sounds like you blew a fuse for the trailer running lights circuit and that is why it no longer is functioning. Check the fuse box under the hood of your truck for the trailer wiring fuses and replace as necessary. You can also check relays if the fuses look good.

I attached a help article on trailer wiring for you to check out as well.

expert reply by:
Jameson C

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