Travel Trailer Brake Problem

[rirish1]

I have an intermittent problem with my TT brakes. I have a 2017 Chevy 2500 with the internal brake module. I recently drove 1000 miles without problem when the truck started alarming with the following message:
Check Trailer Connection. It then almost immediately notifies me that the trailer is connected. It is accompanied by an alarm bell and it sometimes happens 3-5 times a minute. The 7 pin plug is in good shape and I can't duplicate the problem. Other than rewiring the entire brake system does anyone have any suggestions? Can a brake magnet go bad intermittently? This didn't start until one of the bolts holding the brake plate on came loose and rattled around in one wheel for hundreds of miles. The TT is a 2008 KZ and it seems unlikely that there is a wiring problem.

[Lynnmor]

Very likely that you do have a wiring problem and it may be in the truck connector, the trailer plug, trailer wiring and maybe that repaired brake. My bet is that you will find it at or near the trailer plug.

In dog years and trailer years, 13 is a lifetime.