We received the following error codes: B1608, B1421 and B1424

What is your question?

Hi everyone! I'm new here and I'm also not an expert in this but I do hope you can help me with my car's problem. The mechanic gave me the following codes but he was unsure of how to fix it: B1608: Driver's front satellite sensor bus initialization - The indicator light lights up and the mechanic said it's somewhat related to the airbag - Some forums say it might me just a loose connection or a computer reset would fix it? B1421: Solar sensor circuit (passenger side) - Where exactly is this sensor located? - Do we automatically need to replace this? B1424: Solar sensor circuit (Driver side) - Where exactly is this sensor located? - Do we automatically need to replace this?