Quote:
Originally Posted by f-250_LARIAT-2000
I have a wiring problem also, I have the factory hookup with 7 and 4 hookup, and I have no power even to the wiring before the factory harness plug. I have checked all my fuses any help would be greatly appreciated. I also do not have backup lights.
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Your trailer light connector is on the same circuit as the rest of the back lights on your truck. Now if you do not have backup lights then it could be something with the switch. If it is not reading your in reverse then it will not turn on the back up lights.
Yes the bulbs are on a different circuit and they are different bulbs then the rest of the back lights. It is possible to have them burned out.
Your trailer light connectors make sure they are not correded at all. Any corrission will cause trailer light failure. Check the wiring, check the connectors and if they are correded use some sandpaper 100 grit and clean them up. Also put some dielectric grease on the connectors to prevent corrission.