SRS light was on in my 2006 Honda CRV. The fasten seat belt light was staying off with the driver seat belt off. This video helped solve the problem:


However, I did not remove the seat or seat belt buckle assembly, by pushing the seat all the way back and lowering the center tray, I could bend the buckle back and expose the two torq screws pf the buckle cover. I pried on the safety pin in the two buckle torq screws with a screw driver, then was able to remove the two screws with a #10 torq bit. (as the video says you can get a safety bit kit from harbor freight). Then I removed the buckle cover - two pieces.

Following the video, I used a sewing pin to open the red seal of the switch and sprayed CRC QD Electric Cleaner into the switch. After a couple of actuations of switch, the seat belt warning light started working and the SRS light went off. Put the cover back on, job done.

$9 for cleaner, 30 minute labor, problem solved.