GMC TRUCK TRAILER WIRING PROBLEMS
Trailer Brakes Not Working - gm-trucks
May 21, 2016Checked plug resistance on trailer, checked truck, redid ground, inspected brake wiring, redid all pinbox crimps. I went so far as to disconnect my in bed plug thinking maybe that had a short. Nothing helped and the truck would continually cycle the messages "CTW" "trailer connected constantly."Check Trailer Wiring" Solution? - 2014Dec 26, 20172014 gmc trailer plug wiringAug 25, 2015Trailer Wiring Problem - Trailers, HitchesAug 04, 2011trailer brake wiring - Ask the GM TechnicianMay 14, 2005See more results
SilveradoSierra • trailer wiring problem : Towing/Trailers
I am having problems with the trailer wiring on my truck. First off there is no problem with the wiring on the trailer, I have tried it on two different trucks and all lights work. The trailer has two amber lights in front of the finder wells, and a brake/running light behind the finder for a total of 6 lights.