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orggardn's avatar
orggardn
Explorer
May 16, 2016

Running lights not working - how to troubleshoot?

I had an odd problem when I connected the 7 pin connector to my F150. Usually, I turn my headlights in full "on" mode, so when I'm behind the truck and the connector seats - I see the running lights c...
westend's avatar
westend
Explorer
May 16, 2016
Your tail lights and markers are powered by the truck through the towing umbilical cord. A quick check of the truck's socket pins for power is where I would start.

FWIW, my Ford F250 has a separate fuse for trailer light circuit. The owner's manual should help locate it's position in the main fuse panel.

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