Did your vehicle's check-engine light just pop on? An OBD-II scanner can provide some direction. We tested a handful to find ...

How to get your OBD2 codes read at an auto parts store Many auto parts stores offer code readings as a free service. Advance Auto Parts, AutoZone, and O’Reilly are among the stores that will.

While "Check Engine" and "Service Engine Soon" may sound like they indicate the same issues, they're actually for two different types of problems.

Onboard diagnostics (OBD) systems have been around since the 1980s and were developed to help limit harmful automotive exhaust emissions. Between 1988 and 1995, U.S.-built vehicles came with what ...

Ignoring a check engine light might feel harmless if the car still runs smoothly, but the warning signals more than a minor ...

CarMD, an automotive telematics company, published a list of the most common check engine codes in 2020, along with their estimated cost of repair. With this in mind, we decided to take a look at ...