Discover what an OBD2 scanner is and how to use it to diagnose and fix car problems before they escalate into major repairs.

Did your vehicle's Check Engine light just pop on? An OBD-II scanner can provide some direction. We tested 11 of them to find the best for different situations.

The new OBD II Scanner collection embodies leagend’s mission of “Enhanced Diagnostics, Proactive Maintenance.” By offering a full spectrum of diagnostic capabilities—from basic DTC (Diagnostic Trouble ...