Believe it or not, but if you have an Android phone you should seriously check out the Torque app - http://www.300cforums.com/forums/1039411-post1.html. You can check and clear codes, but it does a lot more. I have the paid version.
Free Version - http://www.appbrain.com/app/torque-lite-(obd2-car)/org.prowl.torquefree
Here's a couple of videos...
Bernie
Free Version - http://www.appbrain.com/app/torque-lite-(obd2-car)/org.prowl.torquefree
Here's a couple of videos...
Bernie