http://www.scantool.net/
I even purposely set off a check engine light just to have it read the car's ECU and clear it (pulled off the MAF cable). Very capable tool, and I highly recommend for anyone who has a laptop or a Palm or Pocket PC PDA!
The best part is that the software for this tool is free and there are many out there. I spent over a year looking for this kind of tool and can't believe I never stumbled upon it. Highly recommended for our Volvos and more! It is multi protocol everything from our Volvos to the latest new cars!
My car is a 1995 850 and yes it does have the OBDII port and it works!

Yes, i'm just like a curious george, I have to see whats inside:


Unfortuantly I don't have any pics of what it shows on the laptop, because i'm already driving, looking at laptop (I know its bad, but i'm waiting to get it running on my Palm PDA for easier viewing), and trying to take a pic while doing at that? Probably a bad idea. Look at the website's software and that'll give you a screenshot or two. There are many other software listed on that site that are compatible.
Best $120 I ever spend on the car so far!







