How to Read through Examine Engine Codes

Check engine codes, or diagnostic trouble, provide information and facts on malfunctions during the vehicle's drive-train management procedure. The on-board laptop or computer runs frequent tests about the many sensors while in the process, and if any of those sensors send back data that doesn't correlate with the factory specs for that distinct sensor, the computer system generates a code. As soon as the computer shops a code, it turns about the test engine light to alert the driver of a malfunction. Others Are Reading Ways to get Check Engine Light Codes Tips on how to Go through OBD2 Codes Factors You'll need Scan tool Pen Paper Display A lot more Guidelines 1

Remove the dust cover in the diagnostic port beneath the driver's side of your dashboard. The cover is usually black, with letters or perhaps a word indicating what it truly is, embossed about the face. Search for "DTC" or "Diagnostic" or some variation, depending around the year, make and model of your vehicle.

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Plug the datalink cable from your scan instrument into the diagnostic port. Refer to the scan tool's specific directions on running a self test for the process. While this will vary depending to the brand and model of the scan instrument, the scan tool's display screen usually prompts you on easy methods to proceed.

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Write down the codes for reference during the diagnostic procedures. When prompted to clear/erase the codes, select "no" and complete the self test.

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Disconnect the datalink cable in the diagnostic port and put the cover back over the port.