Hooking Up Trailer Brake Controller

[tschwartz]

Hi Everyone,



I just picked up a new cumming diesel truck and I need to wire the trailer brakes. I need to understand what wires to

connect to what.



Wires from Trailer Brake Controller

Red

Black

White

Blue



Wires from Wiring Harness

White/Red (thick wire)

White/Blue (Thin Wire)

Blue (Thick)

Green/Black (Thin)



thanks,

tomcat

 

[Casey Balvert]

I presume that you didn't get the trailer package? Just checking.

Buy the Dodge harness for the brake controller if they have it. It connects the brake controller to the Dodge harness. I know you can get the Dodge harness for the Prodigy from a Tekonsha dealer. That way all of your wires are matched correctly. Then just plug the Dodge end into the connector under the dash near the steering column, mount the controller and plug the controller end of the harness into it. All trucks actually have the trailer brake controller connector, even those without the trailer package. I think you also need to add a relay to the Power Distribution Center.



Behind the driver side wheel well splash shield you will find a connector that has a blue wire going into it but not out of it. You should cut this wire from the connector and splice a 10 guage (blue) wire into it with a weatherproof crimp and run it to the trailer plug in the back.



I think the aftermarket Mopar Dodge trailer wiring harness has all the info you need and it doesn't cost that much. It provides all the connectors and wire.



Casey

 

[JD SLVR 03]

Yeah like Casey said. I went with the Prodigy and the Dodge harness and all you do is plug the harness into the truck and then into the back of the Prodigy controller. I didn't even use the harness that came with the truck. It was the easiest brake control install I have ever done... took a whole five minutes!

The wiring harness and the brake controller should have come with instruction pages detailing which wires go where. Atleast all the ones I've ever put in did. Did you by it used or something? If you decide to stick with what you got I can run out and take a look at what the instructions that came with the factory Dodge harness say. Just let me know.

JD

 

[Prairie Dog]

The factory pigtail has markings on the individual wires to explain what the connect to.