[Hunter62]

try some of these threads, may be something there

How-To: DIY Electric Brake Controller - 2015 Colorado/Canyon

355Nation
https://www.355nation.net › threads › how-to-diy-elec...





Dec 16, 2014 — This will expose a wiring harness behind the kick panel, next to the parking brake. I gently pulled the wiring harness away from the body and ...
Brake Pedal Wiring - Brake Controller | Chevrolet ... - 355Nation.net
Oct 12, 2019
7 pin trailer connection with brake controller question.
Feb 18, 2023
2012 Colorado Trailer Brake Controller Signal Wire
Jun 26, 2012
Proportional Trailer Braking
Oct 20, 2018
More results from www.355nation.net

 

[Hunter62]

2010 - this is a first gen truck, the documents for 2015 and newer will be useless to him. I wonder if 355Nation may cater better to the 1st Gen trucks.

what I posted is all from 355nation