Fan Not Spinning Up, Random Airbag Light

[drannonb]

I have a 2007 Yaris Hatchback with about 130k miles. Just last night I was taking some friends home and I looked down at my dash and noticed my airbag light was on. A moment later I noticed that even though my fan switch was in the 2 position there was no air moving out of the vents. After I dropped my friends off I pulled over in a quiet place and started poking around. When the AC switch is turned on, and I turn the fan switch on, the AC light comes on, and I can feel/hear the compressor kicking on too. When I turn the fan switch on and off I hear a quiet clicking noise just to the left of my steering wheel that appears to be coming from the dash.

This morning I got up and went out to the car. I turned it on and the air bag light was off and the fan turned and moved air when I turned the switch. Within about 5 minutes the fan stopped working again, but the airbag light never did come back on. Could this be a faulty relay? I'm new to maintaining my own vehicles so be gentle :)

Thanks!