Like the engine computer and ABS computer, the airbag control module runs a self-check every time the vehicle is driven. If it finds a fault in a crash sensor, one of the car airbags, the wiring or itself, it will set a code, turn on the airbag light and disable itself.

You can drive the vehicle with the airbag light on but the car airbags will NOT deploy should you be involved in an accident.  You should have the problem diagnosed by dashwarninglights and any defective parts replaced at your earliest convenience, the airbag light can then be reset.

Can I reset these without the OBD tool?