Reading OBD codes requires an OBD scanner, which can cost between $30 and $60. It’s a handheld tool with a 16-pin trapezoidal connector that plugs into the vehicle and interprets the OBD code.

A code reader for your car can mean the difference between dropping everything and heading for the mechanic and letting that warning light ride a little bit.

Already an affordable option, right now you can save over $25 on this diagnostic code reader from trusted brand Ancel.

The hand-held Equus 3100 OBD-II code reader is versatile and easy to use. Just plug it into the diagnostic port, hit the link key, and wait for the codes to flow. The owner's manual has more than ...

We recently got our hands on the new GoTech mobile OBD-II diagnostic tool and put it through its paces on several trucks in our fleet. The GoTech is more than just a code reader, though.