trailer brake problem
Recently installed 4 new electric brake assemblies and Prodigy P3 controller. Worked great for 800 miles. Plugged the trailer in one morning and got a "Short" error on the controller. Checked al...
Forum Discussion
mapguy wrote:dryfly wrote:
The magnets should be fine with the miles indicated. Unless the assemblies were installed wrong...
Both controller messages are indicative of trailer side wiring issues. First place to start is the cross over wire inside the axle housing. These chafe and the insulation cracks causing both types of error.
Short error would be a cross connection on the brake positive and negative wires.
Overload could be multiple issues, but most common is brake positive contacting the axle housing.
Check any wire nuts and scotch lok wire connectors -they fail but look outwardly fine.
Assemblies were installed correctly. I thought about the cross over wire inside the axle tube. I think I will pull the wire and examine, but I feel if this were the case, I would be getting the error with the truck sitting still at some point while manually applying voltage to the brakes.
