When the light comes on you can check it with a OBD ii handheld scanner that you can purchase or go to your local auto parts store that will probably check it for free and tell you what the code is. However, most stores will NOT reset the computer because they cannot confirm that the repair was performed properly. Unless the OBDii code is cleared from the computer by the attached reader the code will keep reappearing, even if you disconnect the battery and try and reset it. If you use a mechanic then they will reset all codes after they perform the necessary repairs.
The check engine light is reset with a scan tool after repairing the cause of the fault.The check engine light is reset with a scan tool after repairing the cause of the fault.
The check engine light has to be reset with a OBD scan tool
You reset the check engine light with a scan tool after repairing the failure.
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The check engine light comes on in a car when there is a problem with the engine. It will go off or be reset when the problem is fixed.
You need a scan tool to properly reset the check engine light.
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There is no reset button for the check engine light. It must be reset with an OBD scan tool.
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The check engine light can be reset two ways. 1) If the problem resolves itself, the check engine light will reset itself after a certain amount of cold starts of the car on the on board computer system. 2) You need an OBD reader that has the reset check engine light capability.