An OBD2 (On-Board Diagnostics II) scanner can provide information about the status and health of various vehicular systems.

Reading and understanding OBD2 trouble codes today couldn't be easier. This is partly because of tools like Innova's Digital CAN OBD2 Code Reader.

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The BlueDriver OBD2 scan tool is on sale at Amazon for $80, and shoppers say it’s an ‘easy plug-and-play’ solution.