What is an OBD scanner? OBD stands for "on-board diagnostics." It connects to your car's computer system and can read the internal codes to diagnose problems.

From affordable diagnostics to tech-ready computers, we rounded up the best OBD-II scanners on the market with the help of our friends at the Gear Team.

Verizon Wireless launches Vehicle Diagnostics by Delphi. It allows a driver to remote-start the car, keep track of maintenance and more, from your phone.