Just traded my 04 Ford F-150 crew cab 4x4 for an 04 Dodge Ram 2500 Cummins 4x4 CrewCab. Towed a 5th wheel with the Ford, no problems with the lights. I had a 5th wheel hitch and plug put into the Dodge last week, and we're heading out tomorrow with the trailer. We were checking the lights, and found that the brake lights on the trailer don't work, but yet the turn signals, hazards, and parking lights all work...everything works on the truck...any ideas??? We've checked all the fuses under the hood, as well as tried the factory installed plug in the bumper. Please help! I don't have time to take it back to the place that installed the hitch! Thanks!!!
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make sure you have a good ground at the ball. alot of trailers get their ground off the truck and if you have a new hitch that is freshley painted this paint will stop the ground from the receiver to the ball.
If the newer trucks have the same setup as the older Dodges, it doesn't have a ground at the back of the truck. My guess is whoever set up the lights for you didn't do the brake light wire correctly. If I'm not mistaken, there are four wires, one of the brakes, one for each turn signal, and one for when the head lights on on. I can't remember the exact color, but the brake light wire should be on one of the ends of the light plug in if it's a four pin plug. But as others have said, check all the wires with a test light.
1992 Ford Ranger XLT. 4.0L V6, A4LD auto trans, 4X4, extended cab. Lund Sun Visor, Huskey Tool Box, Sony MP3 play back head unit, rest is stock!
1995 Dodge Ram 1500. 5.2L 318 V8, 5 speed manual, 4X4, single cab short box. No mods as of yet, and
The signals and the Brake lights are on the same wires for each side the only seperate brakewire isfor the trailer brakes. I'd make sure the brake lights on the truck work too. if not then the only thing left is the trailer light bulb. i work on this stuff for a living and this is a fairly common problem with the trailers
Can't pee on what you can't catch Calvin