HVAC SystemProblems
 

Hey guys. Newbie here. A few weeks ago my battery died and I replaced it, since the my vent controls and temperature controls have stopped responding to changes. I believe it just needs to be re-calibrated. How do I do this myself without a scan tool? I do not have the money to pay for a re-cal so please help. The vehicle is a 2008 Saturn Vue XR 3.6L. Also how do I reset the ECM as this might corect the problem
TIA,
Mike