Can a brake controller get weaker over time?
I have a Tekonsha Primus brake controller which was installed in my truck when it was new in 2005. Lately it seems like it's not stopping my trailer like it should, even with the gain turned all the w...
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I had the same problem and it was the ground connection at the trailer. Follow the 7-way cord back to the trailer and see where it grounds to the frame, there are usually a bunch of grounds under the same bolt. Take the bolt out and clean everything up good and your brakes will be like new.
