In case this hasn't been mentioned, there is a company that sells OBD-2 scanners on eBay. I bought one a few weeks ago and it's amazing. It worked on 2 Toyota Camrys, 1 Mercury Sable, 1 Mazda Protege (Mine), and a Toyota Corolla. I haven't seen any good universal ones posted, so this is a heads up. The software is amazing too. It's not cheap-o software.