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

The Zurich ZR-PRO scan tool is a professional-level OBD-II scan tool that can read active and pending DTCs and clear the malfunction indicator lamp (MIL).

Diagnostic Trouble Codes If something is wrong with your vehicle, a scan tool can help you pinpoint the issue.

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Instead of an integrated scan tool with a small, monochrome LCD, like the majority of models available, BlueDriver consists of an OBD-II dongle connecting to a smartphone through Bluetooth.

Reading OBD codes requires an OBD scanner, which can cost between $30 and $60. It’s a handheld tool with a 16-pin trapezoidal connector that plugs into the vehicle and interprets the OBD code.

Bluedriver's Bluetooth-enabled OBDII scan tool can help you monitor your vehicle's health.

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If your vehicle is throwing a check engine light, but you don't have a diagnostic scanner handy, here are three tricks to try before seeing a mechanic.

A basic tool for basic needs, this OBDII scanner is a no-brainer if you don't already have one in your toolbox.