Hi folks it looks like I may need to refresh the programming on my 2001 Cabrio after the battery died. Getting P0121 on the OBD, and this seems to be the next step since the other troubleshooting didn’t work.

Does anyone have any recommendations on a place I can go to learn the process? I’ve tried googling a thousand different ways, checking help, etc. but nothing about this specifically.

Doea anyone have any experience with this?

my ride:
2001 Cabrio 1V77L4 Engine