how do you turn off check engine light
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2007 Mazda CX-7 Question: turn off check engine light
Answer #1patrick mannion from Greg Solow's Engine Room, March 04, 2011, 11:45Master
Check Engine light is a sign of a problem not need for an oil change or other maintenance item. A scan tool is needed to retrieve trouble codes stored and once the problem is fixed the code is erased by pulling in a scan tool and erasing the code stored.