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  2. Check engine light - Wikipedia

    en.wikipedia.org/wiki/Check_engine_light

    A check engine light or malfunction indicator lamp (MIL), is a tell-tale that a computerized engine-management system uses to indicate a malfunction or problem with the vehicle ranging from minor (such as a loose gas cap) to serious (worn spark plugs, engine problems or a faulty oil valve, etc.).

  3. ELM327 - Wikipedia

    en.wikipedia.org/wiki/ELM327

    The ELM327 is a programmed microcontroller produced for translating the on-board diagnostics (OBD) interface found in most modern cars. The ELM327 command protocol is one of the most popular PC-to-OBD interface standards and is also implemented by other vendors.

  4. Scan tool - Wikipedia

    en.wikipedia.org/wiki/Scan_tool

    An automotive scan tool (scanner) is an electronic tool used to interface with, diagnose and, sometimes, reprogram vehicle control modules. [1] There are many types from just as many manufacturers, one of the most familiar being the Snap-On Inc. "brick", or MT2500/MTG2500. Snap-On, Hella Gutmann Solutions, OTC/SPX, Xtool india, Autel, Launch ...

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  6. 4 Best Ways To Get a Free VIN Check - AOL

    www.aol.com/finance/4-best-ways-free-vin...

    To use the tool to get a free VIN check report, just enter your VIN and hit “Search.” Bottom Line A VIN check is your first line of defense when you’re buying a vehicle .

  7. On-board diagnostics - Wikipedia

    en.wikipedia.org/wiki/On-board_diagnostics

    Professional hand-held scan tools may possess more advanced functions Access more advanced diagnostics; Set manufacturer- or vehicle-specific ECU parameters; Access and control other control units, such as air bag or ABS; Real-time monitoring or graphing of engine parameters to facilitate diagnosis or tuning