Airbag fault

[Gormo]

Have just changed battery in vz Commodore after car has had a flat battery for a few months and now have airbag fault light on
Before battery was changed we had jump started it without trouble a few time and the was no fault light showing. Like for like battery

 

[Fu Manchu]

Get a cheap OBD2 bluetooth module and an app on your phone, clear the code.
If it comes back, there might be an issue.

 

[A9L]

First things first check the fuse under the dash