My airbag warning light is now on whenever the ignition is on. It started after the light for the "passenger airbag off" symbol turned on for a brief while, before it came off again. Never touched the switched for the passenger airbag. It all sounds very similar to these experiences:
http://www.briskoda.net/forums/topic/367990-airbag-warning-light/
http://www.briskoda.net/forums/topic/342877-passenger-airbag-lamp-bad-switch/
The question is; how likely is it that there will be an airbag