This is a fairly new car with fewer than 60,000 miles on it. I started it up after reconnecting the airbag sensor because it was not fully connected. Now I have two idiot lights on, one for the airbag, and the other for the seatbelt. I buckle my seatbelt but the light stays on until I buckle the passenger seatbelt even though no one sits there. I do not have a scan tool so what do I do?
Go to an autopart store and ask them to scan the codes.
You may need a dealer-level scan tool to turn those off. I know that's the case on Saabs if you disturb the SRS (Supplemental Restraint System) wiring and trigger the light. A good mechanic should be able to do a scan and reset.
the codes that were pulled were B102229 and B121400. These were pulled from an Innova scanner
Well you have a bad connection or bad sensor somewhere. Some possible clues below even though situations and codes are a bit different:
https://www.vwvortex.com/threads/date-got-sick-and-now-the-airbag-light-is-on.9243311/
https://static.nhtsa.gov/odi/tsbs/2020/MC-10185273-0001.pdf
https://www.youtube.com/watch?v=dxXrWrdvSmA
Thank You!