Howdy y'all, new to this community. I have a 2005 GMC Sierra 2500HD and the driver seat is not working. It will not go all the way forward anymore. It goes back all the way but only comes up about halfway forward and stops. I thought it was the switch so bought a new switch, nope! Not the switch. So now i'm at a loss. Could it be the seat control module? Any help would be appreciated!