Check compatibility with your vehicle model before purchasing. Home Necessity and Worthy to Own: This is an excellent code reader to travel or home with as it weighs less and it is compact in design.

Then plug in a diagnostic tool to your OBD2 port and find out what’s wrong—or at least narrow down the possibilities. If ...

Have your owner’s manual handy. Place your vehicle in “park,” or “neutral” for a manual transmission. Firmly set the parking brake. Download and install the manufacturer’s code reader app to your ...