I was told this code doesn't clear by itself, so we have to clear the code or they also told me to disconnect the battery for a few mins. I'm seeing this error right now. The light came on when I was trying to write some computer code to pull data from the OB2 interface. I had this on while I turned the engine on.
Terrible idea, probably introduced errors on the interface. So hopefully this reset works. I don't seem to be having any hvac issues.