vegasvec wrote:
I have a Zieman trailer I modified to fit Hobie cradles. But for some reason the brake and blinker lights won't work. So I am pretty sure it isn't my truck (2010 F-150). I use an adapter that converts a 7 pin to the flat 4. It also lights up showing power is running to the trailer. However when I connect the trailer the brake lights go on when I open the truck door. Nothing happens when I hit the blinkers hazards or brakes. Any ideas where to start?
Sounds like an adapter problem. Trailer wiring is pretty simple; yellow wire is left blinker/brake, green is right blinker/brake, brown are running lights, and black (sometimes white) is ground.
The only issues that typically come up is when a vehicle has separate blinker & brake circuits, which requires a solid-state adapter to convert to the 4-wire trailer lights. However, I'm not sure how the Ford 7-pin plug is wired (I'm assuming it's a factory-wired F-150).
I wouldn't think the interior light circuit should be going to the 7-pin connector?
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