Reset a check engine light — Can it be done and how to do it? Can you reset a check engine light? Yes. There are two ways to clear a trouble code and reset a check engine light. • Using a code reader or a scan tool, use the clear code function • Disconnect both the positive and negative battery terminals and touch them together for at least two minutes. This will erase the history, pending and current codes. But it will not erase any permanent codes (there’s no way … Read More
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