Program Number
WARNING: This page is about a different car, the 1995 Cadillac Seville, 1995 Cadillac Eldorado, and 1995 Cadillac DeVille. However, it is still accessible from the selected car via links, so may be relevant.
The program number is calculated by the ACP to determine the amount of heating or cooling required to meet the desired in-car temperature. This number is based on set temperature, outside temperature, in-car temperature, and sunload sensor.
The program number determines the proper air delivery mode and blower speed, and is also a factor in determining air-mix valve position. A program number of zero indicates maximum system cooling, and a program number of 99 represents maximum heating.