Forum Discussion

Binfordtexas's avatar
Binfordtexas
Explorer
Apr 30, 2017

How to know if my truck is equipped with trailer brakes.

I just bought a 2013 Dodge ram 1500. It has an after market back bumper with a 4 prong and 7 blade trailer plug. There is no brake controller in the cab I can find. But I was wondering if I need just a breaker controller or if I will have to wire everything back to the plug. What's the easiest way to figure this out?
  • RoyB's avatar
    RoyB
    Explorer II
    My 2010 Ford has this OEM Brake Controller built-in


    Google Image

    It also has the 4-way and 7-way dual connector on the rear of the truck...

    Google Image

    It also has the 2-inch receiver hitch on the rear of the truck...

    My 2004 F150 truck also had the dual 7-way and 4-way Brake controller connections on the rear and had the BRAKE CONTROLLER harness available under the dash and it plugged directly into the Prodigy P2 Brake Controller that I purchased separately ...

    Roy Ken
  • Binfordtexas wrote:
    BFL13 wrote:
    There is such a thing as a four wire off a 7-pin back at the bumper.

    For the bumper 7-pin to work any trailer brakes you need a brake controller in the cab. It will have a Dodge (in this case) adapter plug that gets to the 7-pin.


    So I would just need to purchase a controller and wire to the 7 pin?


    You need a truck brand adapter to go the connector down by the pedals in the truck. In your case a Dodge adapter, not a Ford's or Chev's. Might come with the controller or not.

    It explains that in the brake controller's user's manual.
  • My old Ford had a harness near the driver's feet to be connected to an aftermarket controller. Check if yours has similar.

    Check your 7 pin connector actually functions. You will not have a brake signal but you can check the rest is connected and operating.
    • Toolman52660's avatar
      Toolman52660
      Explorer

      If you have someone pushing on the brakes while you check it shouldn’t brake work then?

      • Grit_dog's avatar
        Grit_dog
        Navigator

        That’s not how that works. 
        And you’re replying to a question that was answered in 2017. 

  • Yes, you need a brake controller in order for electric trailer brakes to work from your truck.
  • BFL13 wrote:
    There is such a thing as a four wire off a 7-pin back at the bumper.

    For the bumper 7-pin to work any trailer brakes you need a brake controller in the cab. It will have a Dodge (in this case) adapter plug that gets to the 7-pin.


    So I would just need to purchase a controller and wire to the 7 pin?
  • There is such a thing as a four wire off a 7-pin back at the bumper.

    For the bumper 7-pin to work any trailer brakes you need a brake controller in the cab. It will have a Dodge (in this case) adapter plug that gets to the 7-pin.
  • My 2013 Dodge Ram 2500 has a built-in brake controller. It is right below the radio with two small handles you sort of squeeze together to set the braking power.

About Technical Issues

Having RV issues? Connect with others who have been in your shoes.24,212 PostsLatest Activity: Mar 12, 2025