I am hoping to get some guidance on troubleshooting the brake controller and wiring on my truck for the brakes on my trailer. I know the brakes work on the trailer because I have two towing rigs and ...
Have you checked the brake wire at the connector, to see that it did not come loose/broken, or is corroded from water/salt? Do the other systems work turn signals, tail lights? Is there an inline fuse that may be blown? Do you have power to the controller?