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Error code P0642 indicates a problem with the sensor reference voltage circuit in a vehicle's engine control module (ECM). It typically means that the ECM has detected an issue with the voltage supplied to one or more sensors, which can result in poor engine performance or a malfunctioning system. Common causes include wiring issues, faulty sensors, or problems within the ECM itself. To resolve this code, a thorough inspection of the wiring and connections, as well as testing the sensors, is recommended.

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AnswerBot

1w ago

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