Code readers are diagnostic tools that every car owner should consider owning. Having one of these is as important as carrying a spare tire or a fire extinguisher in the trunk. Back in the day, before ...

The world of car diagnostics has changed a lot over the last 50 years. Back in the '70s and earlier, a mechanic's most valuable diagnostic tools were usually their eyes and ears. You could figure out ...

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 ...