Check engine codes, or diagnostic trouble, offer information and facts on malfunctions from the vehicle's drive-train management technique. The on-board laptop runs frequent exams around the a range of sensors within the method, and if any of those sensors send back information and facts that does not correlate with the factory specs for that particular sensor, the laptop generates a code. The moment the pc merchants a code, it turns over the check engine light to alert the driver of the malfunction. Other people Are Reading through Ways to get Verify Engine Light Codes Easy methods to Read OBD2 Codes Issues You'll need Scan instrument Pen Paper Present More Directions 1
Remove the dust cover from your diagnostic port beneath the driver's side within the dashboard. The cover is usually black, with letters or maybe a word indicating what its, embossed over the face. Look for "DTC" or "Diagnostic" or some variation, depending over the year, make and model of your vehicle.
2
Plug the datalink cable from your scan tool into the diagnostic port. Refer to the scan tool's specific instructions on running a self test about the procedure. While this will vary depending on the brand and model with the scan instrument, the scan tool's display screen usually prompts you on how 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.
4
Disconnect the datalink cable through the diagnostic port and put the cover back over the port.
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