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How to lookup Vehicle DTC Codes – Understand your Check Engine Light (CEL)

There are a few ways that you can lookup vehicle DTC codes. One way is to use an online database, such as the one found at dot.report/dtc. Another way is to use a code reader, which can be purchased at most auto parts stores.

Once you have obtained a code reader, you will need to connect it to the diagnostic port of your vehicle. The location of the diagnostic port will vary depending on the make and model of your vehicle, but it is usually located under the dash or near the engine. Once the code reader is connected, it will display any DTC codes that are stored in the vehicle’s computer.

DTC Trouble Code Search

If you do not have a code reader, you can also check the owner’s manual of your vehicle to see if it has a list of DTC codes.

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