A basic OBD scanner can help check a used car, but it cannot reliably prove that the odometer reading is genuine.

Your front door lock is your first line of defense from the outside world. It’s also the piece of home security you use more than any other. If your lock hasn’t been replaced in a while—or if it’s the ...

Tactical and preparedness expert Cliff, The Urban Prepper, demonstrates how an OBD II scan tool works and explains its vehicle preparedness uses.