Passenger Air Bag stays "off" - need help

I've been trying to trouble shoot this for quite some time now and I still can't figure out why the passenger airbag will show "off" and won't turn "on". This is on a 2006 Package 3. I read a properly functioning passenger airbag light would not indicate "off or on" unless someone is sitting on the passenger seat. Mine will show "off" regardless if there is a passenger or not?

I ran a diagnostic with the MiniVci and everything checked out, no error codes, the Airbag ECU is detecting everything as normal. I did a sensitivity check and the weights were within specs. I don't know where else to look. Any ideas?

When I ran the car for DTCs, there were stored DTCs related to SRS but when I checked the summary to get information, it gave me all was working properly, no diagnostics required.

The stored codes are:

b1794
b1650
b1826
b1421

 

I've checked the wires and they all seem to be in place and secure. Strange thing is the DTC is not a current one and it was a stored DTC that's now cleared and supposedly functional.

The receiver on the seat belt is not functional, it doesn't always work. Sometimes I would have to press the release button in order to get the seat belt to lock into the receiver. But I don't think the airbag should be linked to the receiver switch.

I may have to get a new seat, I can't figure this one out.

 

I bought the car from a member here, he didn't mention it was ever in an accident. I checked all the Vin#s on the body parts, they all matched. The car itself does look a bit rough, but no major dents that would possibly trigger an airbag.