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How do you turn off the 'check engine' light on a 99 Volvo S80?
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Answered 2015-07-15 19:48:48
Yes, but with the provision that there are no problems as seen by the car's computer. Disconnect the negative battery cable for a couple of minutes then reconnect. This will erase any trouble codes stored in the computer. If everything is okay, the CHECK ENGINE light will stay off. If the computer sees a problem, the CHECK ENGINE light will come on again.
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