Did your vehicle's check-engine light just pop on? An OBD-II scanner can point you in the right direction—and potentially save you a bundle.

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

This is one of the only, if not the only CarPlay compatible OBD scanner apps on the App Store.

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OBD2 scanners are a dime a dozen, and we recently tested the Carista EVO to see how it does. Can it stand out? First impressions count, and the Carista EVO doesn't disappoint.

OBD2 scan tools can be purchased at local auto parts stores as well as many online stores. Prices start as low as $30 for basic entry-level scanners and can rise to hundreds of dollars for ...

And apps like Car Scanner ELM OBD2 have become pretty popular, simply because they provide you with an easy interface to read sensor information, set fault codes, and delete errors from your ECU.