The key operated switch for my passenger airbag is set to ON but when I start her up the roof mounted warning light comes on saying it's off then it extinguishes, is this a test OR is the passenger bag not working?. ( I should turn it off and see if it alters I know but haven't as yet)! What's yours do??

most airbag lights come on and go off as a self test, it's only if you turn it off you would see a light for a bit longer or permanent, normally the warning airbag off light is yellow / orange