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Dash Warning ights
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Why is my Check Engine Warning Light Symbol ON?

Why is my Check Engine Warning Light ON? There are lots of reasons why the engine warning symbol light is illuminated on your dashboard, and there is no straight answer. However you do have the power to diagnose the fault and fix it yourself. You don't need to take it to the garage or dealer. You can read the diagnostic fault code or trouble code with your own diagnostic scan tool.
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