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Re: 04 DODGE RAM TRAILER BRAKE WIRING
If you have a seven pin connector in your tow package, you should be wired for electric brakes. just need the brake box.usually in your owners manual it will show you where to plug the box into. the best thing to do is contact your local chrysler dealer and ask them.if you give them your VIN number they should be able to tell you for sure.
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The diagram does not show separate wires for turns, so you don't need an adapter. The left signal/brake wire is green with a red stripe. The right is green with a brown stripe. The running lights are on the black wire with a yellow stripe.
most aftermarket electric controllers have 4 leads, a hot 12volt, ground, a wire that goes to the trailer brakes, and another wire tied into the brake lights. There should be instructions included with your controller. I put one on my 96 dodge ram 2500 4x4.
Your truck may have had the factory trailer tow package, but that did
not come with a wiring connector in that year. There should be a wire
harness under the rear of the truck near the center of the bumper with 7
wires of the following colors/characteristics -
Red/Orange - +12V Battery (Thick Wire) From fuse #8 (40A)
Black/Orange - Tail Markers (Thick Wire)
Light Blue - Trailer Brakes (Thick Wire)
Violet/Black - Backup Lights (Thin Wire)
Dark Green/Red - Left Stop/Turn - (Thin Wire)
Brown/Red - Right Stop/Turn - (Thin Wire)
Black - Ground - (Thick Wire)
Under the dash, the brake controller wiring should be -
Both. If the running lights ( marker, tail, clearence, or parking) and brake lights are out since the rain, a tail light assembly is broken and filling with water enough to create a short to ground. If there's no broken lens, whitch normally only blows the bulb. Then, the problem lyes in the trailer light harness. the brown wire (tail) & green wire (left turn/brake or yellow wire (right turn/brake) must be bare exsposed that shorts to ground when wet. all the trailer wires could be smashed together damaged the plastic coating on them. no problem till water shorts to ground. The white wire is the ground wire make its not able to touch the other 3 wires or bare & wet. Tape wires seperate then replace tail/mkr fuse and brake fuse. That should do it.
You have got 7 pin trailer connector that was included in the optional trailer tow package. This trailer tow package also includes an electric trailer brake wiring provision that terminates at a connector located on top of the large body harness connection under the instrument panel to the left of the break pedal, as well as an electric trailer brake pigtail harness and an instruction card that are stored in the glove box when the vehicle is shipped from the factory. You will need to add an electric brake controller of your choice that will plug-in to the harness and that will also give you power on your auxiliary circuit.
Trailer end; Red=Brake
You will need a turn and brake signal box IF, you have different bulbs for brake and turn lamps. If the brake and turn bulbs are one(red)lens than no box will be required. Thanks, Dana
Horse, stock or utility trailers: White = Ground - GD Yellow = Left turn/Brake -LT Green = Right turn Brake -RT Brown = Tail and clearance lights - TM Red or Black (not both) = Battery, aux power - A Blue = Electric Brakes - S
all you need is a cheap continuity tester, any one to help tap on the brakes..7pin is just like the 4 pin w/extra power wire for acc.lites,electric brakes.when you buy the 7pin rec.,comes w/wiring schematic standard to all trailer rec.- you can do it..kev-mn.