When your vehicle’s check engine light appears on the dashboard, it’s time for some car maintenance. Inspecting your vehicle sooner can help you to avoid costly repair problem down the road. The service engine light is connected to the electronic control module (ECM) of the vehicle, which essentially acts as the brain of the vehicle.
Many sensors are installed throughout the vehicle and feedback information to the ECM. If the ECM recognizes a specific part of the vehicle is not up to factory standards, it will turn the check engine light on to seek professional help. It is strongly recommended not to ignore the check engine light until your vehicle starts exhibiting performance problems, such as poor gas mileage, stalling, surging, stumbling, breaking down, and/or failing smog test.