Just for your personal edification (its probably old news), there are two other features that can be addressed on the PBC (pushbutton controller). The fault codes can be listed and the all the air ducts activated in a precise functional manner.
I wrote an article for "Import Car" trade publication on this exact subject and it can be seen here: (the tables of values are for your car in the article)
http://www.continentalimports.com/ser_ic40142.html