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Nissan xterra 2005 Diagnostics code U1000 - CAN Communications Circuit

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Service Engine soon warning light came on. There are no issues with engine performance. Is this a wiring harness ground/loose connection issue, if so how can I fix it? thanks

Vehicle: Nissan Xterra 2005

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U1000 is a bad ground problem, you can clean the factory grounds with sand paper and tighen them back up. and you can add a grounding kit to help the factory grounds

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