Hi, I have a 99 familia SP20. The airbag light started flashing a few days ago. I took it to a friend who works at a Mazda dealership, and unfortunatly the Airbag system doesn't have a diagnostic plug. Apparently its the last year before they put in the system??? Anyway, my friend tested the airbag and sensors with a resistor thingy and they checked out fine. He thinks it might be a module problem, but we ran out of time to test/ check it. Is this a common familia fault?