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I have a 2001 Hyundai Elantra that is giving me a code U0D00. What does this mean?

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I have a 2001 Hyundai Elantra that is giving me a code U0D00. What does this mean?

Vehicle: 2001 Hyundai Elantra

1 Answer

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The code U0D00 indicates that the tool you are using to connect with the Engine Control Module (ECM) is not communicating or not capable to connect. Please try using another OBDII code reader.

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