the most common air bag failures are from high resistance in wiring connectors. seat belt pretensioner circuits check the connections under the drivers seat. air bag system connectors are yellow, disconnect/ reconnect with ign. off then turn ign. on again. watch light on dash to flash 7 times then go out if all is ok.ck passenger side also. good luck
Tracy, ase master tech. for 35 yrs thank God i dont do that anymore!
ps never heard of air deploying by its self. but it most likley will not deploy if needed, when light is on.depends on year of vehicle and system type.