Passenger Side of Trailer Brakes Work But Drivers Side Does Not

Updated 04/03/2015 | Published 04/02/2015

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Question:

first how can I determine if electricity is flowing to drivers side on my Single axle 2010 Casita trailer. When the brake is engaged the passenger side receives electric and engages but the drivers side appears not too. I have no error message on my Prodigy brake controller. Brake lights all work just not the magnet on the drivers side brake. Help!!!

asked by: Ron

Expert Reply:

It sounds like the driver's side may have a bad ground in the system or a loose ground. You can use a circuit tester, like # PTW2993, to probe the wires going to the driver's side brakes to see if voltage is reaching those brakes. You will want to make sure all brake magnet grounds are ran back to the main trailer ground and not grounded at the frame by each brake assembly.

I have linked a video that shows how to test trailer brake magnets for proper function.

expert reply by: Chris O