2002 Acura RSX "Side Airbag Off" light sensors?

SHORT VERSION:

How do I check the Occupant Position Detection System (OPDS) on a 2002 Acura RSX?

LONG VERSION:

I bought a 2002 Acura RSX with VERY low miles (under 38,000) from a private party and has been babied by previous owner and myself (not sure if that would make a difference). Yesterday morning, the “Side Airbag Off” light came on for a little bit, then went out and stayed on for maybe about a minute on my way to work. It did not come on during the ride home. Then today it came on and flickered on and off a bit then stayed lit until the car was turned off. I was in the car alone both of these times. When you turn the car back on, the light is off (all indicator lights light up so there isn’t a problem there).Now I know what the light means, and some ways that can trigger it, but this light has NEVER came on before. (Maybe it’s a subliminal message to take a day off lol)

I have had the back seats down for a while and there is some stuff back there-like small folding table, etc. Not sure if this kind of stuff could possibly set something off. Is there any way for me to check the sensors myself and avoid an unnecessary trip to the dealer? I tried to research this issue a little bit, but all of the resources explain the issue as it pertains to your passengers, mention some kind of warranty, but not a good way to check it out. Can anyone give me some ideas or info (without being a smartass)-driving with it on is getting distracting.