Weak electronic trailer brakes

Discussion in 'Trucks and Trailers' started by Accu-cut Lawn Care, Jan 9, 2007.

  1. Accu-cut Lawn Care

    Accu-cut Lawn Care LawnSite Bronze Member
    Messages: 1,206

    I had a brake controller installed on my Dodge today. I decided to wire the trailer side 7 post harness myself. Trailer lights function properly... But the brakes are very weak. I can fully engage the brake controller and only feel the slightest hint of brakes being back there. The two wires that came up from the brakes were both wired to the harness. Do you think it could be a weak ground that needs to be grounded to the trailer instead of the harness?
  2. LindblomRJ

    LindblomRJ LawnSite Silver Member
    Messages: 2,570

    Is the controller adjusted properly? About the the condition of the breaks. Is there current to the magnets? If so how about the condition of the magnets?
  3. Jason Rose

    Jason Rose LawnSite Fanatic
    Messages: 5,858

    There's a TON of variables to making trailer brakes work properly. If everything is connected properly and we can take that out of the equation then are the trailer brakes NEW? I re-did mont this fall front to back, including a new controler. I had a bunch of problems until I got 15 to 20 miles on them. Even then the brakes were'nt "braking" at the max. After some more time they started grabbing good and they have worked fine ever since. Just a thought...

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