ok, I just went out and buckled the seat belt with no one sitting in the seat. Airbag off light still illuminated and the SRS light is still on. So I put pressure on the seat with my hand, the airbag off light went out along with the SRS light, lifted my hand, both lights came on. So it appears the seat sensor is working, or at least it detects weight because the airbag on/off light is working as it should. The problem is with no one in the seat the SRS light comes on. hmmmm, why would the airbag on/off light work fine detecting weight, but yet the SRS light comes on with zero weight..???