Hi Guys,

I was referred to an HVAC thread here and asked some questions on that thread, but received no reply. (My truck is a 2006 GMC 2500 Crew Cab with dual zone A/C). My driver's side A/C runs cold for a while then it blows out warm air. It works properly if I shut the truck off and turn it back on. The other thread said that this problem was linked to an error code coming from the HVAC. What I want to know is can I clear this code with a plain-jane (read "cheap") OBDII reader? I haven't used an OBDII reader before so any tips would be handy. Anybody know the code number?

Thanks,

Rod