Air Bag Sensor

I have a 2008 Saturn sky .Air bag light lit on dash, Passenger light does not change to on stays off when you sit in the seat. Can you tell me where the sensor is. What I would really like to do is fine a good web page where I can view graphics .Where I can see where all these sensors are located
Regards
John

air bag light on the dash means the air bag system has a code. the system may be disabled. do you know what the code is for? is the codes the passenger seat sensor?