Re: What OBDII scanner are you using?
I have a netbook, so I use an inexpensive $25 ELM based ODB to Bluetooth adapter and one of the free software packages to read and interpret the codes. Wireless. Lots of options for more sophistication.
I also received a GoLink as a birthday present. It plugs into an iPad or iPhone. Nifty but more money.
Auto Ingenuity makes a more capable system.
2011 WK2 Overland Mineral Gray/Black, Advanced warning, V8; 2009 KK Rocky Mtn V6; 2000 WJ Laredo I6; 1979 CJ7 I6... green... miles of smiles :)