I have a 2010 Jetta Sportwagen and the A/C quit a couple weeks ago. I have the the VCDS software and I need some trouble shooting advice. The A/C control valve has just been replaced, but the system will still not come on and blow cold air. I can activate fans with the software, but the pressing the A.C. button does not start the small fan on the passenger side. No fault codes that I can see...or maybe I'm not looking in the right spot. Any troubleshooting help would be appreciated.