How to Wire Electric Trailer Brake Magnets to 12 Volt Brake Output and Ground

Updated 10/17/2011 | Published 10/15/2011

Question:

Does it matter which wire of the 2 coming from the trailer brake magnet hooks to the blue wire on the trailer?

asked by: Kevin N

Expert Reply:

No, it does not matter which wire from the magnet is attached to power or ground. Just make sure one wire is properly grounded and the other wire is attached to the electric brake output circuit from the trailer connector.

I have linked a video that details replacement and wiring of a trailer brake magnet that should be helpful.

expert reply by: Robert G