How To Reset Check Engine Light Honda Civic. Do not step on the gas pedal. After 15 minutes turn the ignition off and immediately back on. The light generates a code that can help you narrow down the problem so you can get it fixed. The check engine light is flashing because there is a misfire and it could be causing damage to the catalytic converter.
The light generates a code that can help you narrow down the problem so you can get it fixed. Signs your Honda Civic Emission System is Failing Light Indicator on the Dash. This will reset the electronic control unit or ECU and turn the check engine light off. The best way to reset a check engine light is to use a code scanner. Let the vehicle run and do no operate any accessories or electronics. If the check engine light is on you have a problem with the emissions control system that should be diagnosed instead of just turnign the light off.
A check engine light can indicate a broad spectrum of problems with your 2004 Honda Civic.
Turn on the ignition and let the engine idle for 15 minutes. If your gas cap is not properly attached you may see a Check Engine light or a Loose Cap warning light on the dash. In some cases you need to pull over immediately to prevent damage while in others you merely need to tighten you gas cap next time you stop in order to reset the service engine soon light. After 15 minutes turn the ignition off and immediately back on. The check engine light comes on when your cars computer detects an issue within the powertrain. The best way to reset a check engine light is to use a code scanner.