Re: running lights won't work with Ford truck
Rick_Criswell said:
My ford (99 F 150)has fuses for the truck lights. One for each side, under the dash. And one for running lights
It also has 3fuses for the trailer light wiring under the hood in another fuse box.
You should check the fuses under the hood.
DANG you beat to this possibility. I love it when a customer comes in with the complaint of turn signals, brake lights or running lights out and they've checked all the fuses. When I check the fuses, replace one and show the customer that the lights now work, they look at me like I'm a genius. I'm purty schmart, but I'm not no genius (read with redneck accent
).
Make sure to consult your owners manual. Since all your lights work properly with another truck, I wouldn't worry what the 5th wire is for. The problem is evidently with your truck.