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Troubleshooting Brake Controller that Does Not Work at Trailer Connector


I have a 03 dodge 3500 that I just put a brake control in. I tested the controller everything work but I don’t get a signal at the plug for the trailer?


Expert Reply:

If the brake output is active at the back of the controller but then not active at the 7-way connector that would indicate you have a short on that circuit somewhere between the two. It could be as simple as corrosion on the pins of the 7-way or even at the back but if not you'd have to trace the wiring to find the short and fix as needed.

I attached a help article on troubleshooting brake controller installs for you to check out as well.

expert reply by:
Jameson C

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