MotorTrend on MSN
What Is an OBD2 Scanner and How Does It Work?
Discover what an OBD2 scanner is and how to use it to diagnose and fix car problems before they escalate into major repairs.
If you own a car built after 1996, it comes equipped with a second-generation onboard diagnostic (OBD or OBDII) system. These systems work together with the vehicle's primary computer or powertrain ...
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