I deleted the "fixed" form the subject line. A new skill I learned!
As to the battery, are you talking about the standard 12V SLI (starting-lighting-ignition) battery? I would be surprised if any scanner action is needed when changing that battery. Yes, certain "learned" parameter may be lost, but those should be renewed by normal engine operation and you re-setting seats, radio, mirrors, etc. If you want to avoid even that bother, then connect another 12V source to the system (the cig lighter socket is often used) while the main battery is swapped out. I suppose you could even do the swap with the engine running.