Seat Belt Light

[TX '90 ZR1]

I realize this may be getting way out in the weeds.
Have been a little bored as I thought I had everything working properly and nothing to work on! Discovered my seat belt light and chime are not working correctly. Here's the scenario.
When turning the ignition key on the seat belt light comes on for about 5 seconds and goes off. This occurs whether I have the seat belt fastened or not. Also do not hear the "chime" for the seat belt when it is not fastened.
Am not exactly sure how it should work, but it would seem that the light should stay on until the belt is fastened and the "chime" should sound as well.
I checked the seat belt connecting wires when I had the seats out and they are connected.
For background, the seat belt light was previously on continuously and had an air bag system light on. Cleaned the sensors, verified grounding and also cleaned the wiring connections behind the kick panels. This corrected the air bag light and the seat belt light went off.
The "chime" works for door open with key in ignition and also if headlights are on when shutting down and opening door.
Anybody have a suggestion as to how to figure this out? I've done the search deal and the FSM is not helping me much.
Appreciate the help in advance!!