Check Engine Light Diagnosis

The Meaning Behind the Check Engine Light

To learn more about the Check Engine Light, let's first take a look at what makes it turn on: the ECU (engine control unit). This onboard computer monitors input from numerous sensors around your vehicle and makes adjustments as needed. If a sensor tells the ECU that something is not correct, the ECU will try to correct it on its own first. If the problem cannot be corrected by the ECU, it will turn on the Check Engine Light to alert you that something in the emissions system is not working as it should.

The Meaning Behind the Check Engine Light

To learn more about the Check Engine Light, let's first take a look at what makes it turn on: the ECU (engine control unit). This onboard computer monitors input from numerous sensors around your vehicle and makes adjustments as needed. If a sensor tells the ECU that something is not correct, the ECU will try to correct it on its own first. If the problem cannot be corrected by the ECU, it will turn on the Check Engine Light to alert you that something in the emissions system is not working as it should.

Come To North End Subaru for Check Engine Light Diagnostic Near Ayer, MA

When you bring your Subaru to North End Subaru for a check engine light diagnostic service near Fitchburg, Massachusetts, our technicians will hook a code reader up to your Subaru and see what the ECU is saying; they will then inspect the indicated area to get to the bottom of the problem and let you know the best solution. While they do so, you can relax and enjoy our comfortable customer waiting area, which comes with free Wi-Fi, complimentary coffee, and more!