i have airbag code 19,anyone know how to fix?
Yes, take it to the Mazda dealer and ask them to fix it. Airbags are nothing for a DIYer to mess with.
it has something to do with the drivers seat.anyone know if it has a position sensor or a weight sensor??
Remove everything sitting on any of the seats and see if the problem persists. May provide a clue. Weird problems can ensue when you place even just your briefcase on the passenger or back seat sometimes.