Most of today’s cars rely on a computer system that monitors various systems. It also controls various elements of the vehicle, including emissions, fuel delivery, ignition timing, and many others. And this is the computer that sends that dreaded signal to your dashboard when something goes wrong: the check engine light. It is often recommended that when this light turns on, you should get diagnostic and inspections services for your vehicle. To help you better understand, here’s a more detailed look at what you need to know.

A Guide to Diagnostic & Inspections When the Check Engine Light Turns On

Why Does It Turn On?

The various systems in your vehicle operate at specific voltages, which the computer reads. If those voltage readings don’t fall within the normal parameters, the computer will store a code, which provides information regarding the specific problem and where it originated. The computer will then send the signal to turn on your dashboard light.

What Should You Do?

When the check engine light turns on, it’s important that you stay calm. You should first check the gas cap, as it is very common for a loose gas cap to allow vapor leakages. Such leaks cause the fuel system to trigger the light, even if it is a simple fix. If the cap is not loose, however, you may need to bring your vehicle to a professional for help.

While some newer vehicles display the computer’s trouble code on the dashboard, many drivers won’t be able to access such information. Instead, you’ll need to bring your vehicle to a technician or auto mechanic who has a specialized code reader, as soon as the check engine light turns on. These experts will use their device to determine the code and interpret it. Thus, they can provide the necessary diagnostics to help you understand what caused the engine light to turn on.

 

When your engine light turns on, don’t hesitate to bring the vehicle to the experts at H & S Tire & Auto Center. Based in Wentzville, MO, these professionals offer more than 70 years of experience and a wide range of services. Whether you need diagnostics and inspections or auto repair, these professionals can help. To schedule a free estimate, call a team member today by dialing (636) 327-5225, or visit them online for more information about their services.