I have a 2006 Ram with a single zone AC/Heater Control. I had an issue with Control Module and replaced it with a Dorman aftermarket. Everything seems to be working fine. But the Service Manual states that the module needs to be calibrated using a DRB scanning tool. My scanners do not reach that module. Can they be calibrated otherwise? If so, how? If the module is working, does it still need to be calibrated? Otherwise, it'll probably be an expensive trip to the dealer.