No Trailer Connected Message Shown After Brake Controller Installation

Updated 08/11/2021 | Published 08/10/2021

Question:

Hi! Ive seen a couple threads on this site of people expressing problems with the Curt Venturer brake controller - the same problem Im having. I have not seen that the problems have been fixed. Everything is brand new in this installation except the pre-existing truck wiring - connecting to a 2021 No Boundaries 19.5 travel trailer. I added a 7 pin connector and associated adapter and the brake controller and accessory connectors as described in your very helpful video. I get a green light when I press the brake pedal or use the manual switch and when I shut the truck off I get a red light that goes away after a bit. All the lighting on the trailer works as it should. What am I missing? Thanks

asked by: BradRosenthal

Expert Reply:

The no trailer connected error on most brake controllers simple means the controller does not sense resistance on the brake output circuit. This is usually caused by a short or improper wiring. I recommend checking the vehicle side connector to make sure everything is working correctly with the override. If you don't get signal sent to brake output pin then you know the issue is on the vehicle. If you do then move to the trailer. You can probe the blue wire directly behind the controller to rule it out out as the culprit.

expert reply by: Conner L