OK, so maybe it's just a matter of finding a dealer that is familiar with the proceedure, which would be the simplest answer. I'll start looking tommorrrow.

In the meantime, I've been looking at the OBD2 scan tools. I have the one from

http://www.obd-2.com/index.html

I may be able to write the values with this tool, but I haven't figured out which ones yet. Actually, I'm still experimenting with figuring out how to read the values, which could take a while (and might be a tricky thing to do anyhow). Thanks for the advice,

DonB