general problems of the 2010 Ford Explorer

The air bag light will not go off. I have checked the the wiring, cleared the area, and checked all fuses. All checked out okay. I'm a new buyer and can't register the car until it passes inspection. My only conclusion is that it possibly has a defect or has been previously been deployed. There is no record of a previous collision as of yet, although that may not be factual as the car has had a drivers door panel replaced. Can you help with the air bag information? also, is there a financial aid grant or some help in obtaining/repairing the problem for low or no income families? thank you for your time in this matter. Sincerely, kelly f. Kewkarooo@gmail. Com.