How do you replace ac programmer on a 1997 Cadillac Eldorado?

To replace the AC programmer on a 1997 Cadillac Eldorado, first, disconnect the negative battery cable to ensure safety. Remove the dashboard trim panels to access the AC control module, typically located in the center console area. Unplug the old AC programmer and install the new one by reversing the removal process. Finally, reconnect the battery and test the AC system to ensure proper functionality.