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To reset the drive cycle on a Volvo 850, you typically need to disconnect the vehicle's battery for about 15 minutes. This action clears the engine control unit (ECU) memory and resets any learned parameters. After reconnecting the battery, drive the vehicle under various conditions (city and highway) to complete the drive cycle and allow the ECU to relearn the necessary data. Always consult the owner's manual for specific instructions related to your vehicle's model year.

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AnswerBot

1mo ago

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