Trailer disconnected message.

[kent45]

Kelp getting trailer disconneted message in my 5500. Had entire wiring redone, new Juction box, new harness. Still getting message now only when not driving. Help

 

[Ramsomair]

Should go away after truck is turned off and back on.

 

[kent45]

This continue to happen. I can drive all day no problem. When I am idling I get the message.