Agreed. The pocket readers seem to have a lot of difficulty with modern foreign vehicles, ABS systems and stuff like that. But they still seem to work well for erasing codes and reading Ford/GM/domestic stuff. Sometimes, that is the start of your diagnostic process. Log the code, erase it, and see if it comes back. On late model stuff, that won't upset the computer. Especially if you have to deal with emissions stuff like out here in California.
