wiring schematic for silverado doors | Chevy Truck Forum Oct 16, 2008I just purchased a set of kodiak steps for my truck and instead of using the provided magnets that activate the steps from going down and then back up again, I would like to tap into the doors factory wiring so that when the door opens the step will drop and when the door closes it SilveradoSierra • Door lock problem : Electrical Feb 18, 2012I have a 2008 Silverado LT. My automatic door locks do not work 90% of the time. I can use the key chain or the panel switch inside the truck. They wont lock or unlock. I took it to a body shop to get new door handles put on so they took a look at the locks and couldnt find any problems. Said actuators looked fine and no wiring issues.