In this thread, about halfway down, is a good post describing the codes
http://www.lincolnvscadillac.com/showthread.php?t=33343
I recently got through a airbag light problem (code 3-6) in this thread
http://www.lincolnvscadillac.com/showthread.php?t=76870
Logically thinking, if you have the 3-2 or 3-6 codes, and the problem isn't the clockspring:
1 - the most likely point of failure will have to be in a harness connector somewhere in the system
2 - the most likely connectors to fail are those subjected to motion. So the first suspicion will be the seat airbag connections since the seat moves, either when you adjust it or when you get in and out of the car
3 - there are two connectors. The first, with the most common problem, is the underseat connector. In my case, I gave up on that connector and hard-wired the seat. The second is the connector to the side airbag. In my case I found that connector was also loose. You can't hardwire that one, so you have no choice but to fix it.
I had to disconnect and re-connect mine several times to prove out that the connector itself wasn't make a solid connection. One I re-connected it, the light would stay off for a few hours about half the time.