It sounds like the ODS module has gone out. I would start by replacing it you might have to have it programmed into the CAN to have the system work. Here is the seat belt wiring diagrams so you can see how the system works.
Here is the ODS location as well.
Check out the diagrams (Below)
Please let us know what you find. We are interested to see what it is.
Images (Click to enlarge)
Saturday, May 4th, 2013 AT 12:32 PM