P2 Brake Controller Not Sensing when a Trailer is Connected to a 2007 Chevy Silverado

Question:

I installed a tekonsha prodigy 2 brake box it will light up with n.c. for short time then go to . . when push brake pedal nothing when you push manual you get n.c. tried two trailers same results used plug and play wiring harness

asked by: Leon M

Expert Reply:

There may be some connections that you will need to make under the hood to make everything fully functional. For some reason Chevy does not always complete the factory tow package wiring. It sounds like this is what is going on with your truck since the brake controller is not sensing the trailers.

Since you used a plug and play type of harness on the truck that must mean your 2007 is a Classic series and not a New Body style (2007 was a split year). I have included a link to a help article that covers the connections under the hood.

Also make sure that the truck side 7-Way trailer connector is clean and free of corrosion inside where the wires attach and outside on the pins. I have also included some links on testing and troubleshooting brake controllers for you.

expert reply by: Michael H