First off, it is extremely unlikely that your airbag is going to randomly deploy. Nearly all the stories that go around about airbags going off at random are bogus. I would be more worried about it not going off when it should. Simple thigs first, check the fuse- if it is blown or missing the light will usually come on. have you done any wiring or any type of work in the area of the steering column or near the sensors up front? Look for small things, but for your sake don´t start poking wires with a test light unless you are real sure of what you are doing. An air bag can be deploy accidently. If all the simple things are fine then suck it up and take it to a professional with the right equipment. BTW airbags are the best thing since the seatbelt. I know that I am still around because of one.