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One of the most important aspects of a robust auto maintenance program is known as a car diagnostic test. While not everyone has heard of this technological breakthrough, it’s one of the top tools in an auto repair shop’s kit. Here’s a guide to everything you need to know about this useful tactic. 

What Is a Car Diagnostic Test?

A car diagnostic test is when auto technicians connect computer software to your vehicle. Since many components of modern cars are now computerized, the software can detect when there’s a problem with a part of your vehicle, like the engine or transmission. Typically, it will be used if the driver believes there’s something wrong or as part of regular annual auto maintenance. 

How Is It Done?

auto maintenanceCar diagnostics work by cross-referencing a system known as on-board diagnostics. Essentially, the computer is scanning for error codes which will appear to your auto technician. Every error code corresponds to a different problem. For example, instead of just seeing the “check engine” light turn on, the technician will gain more precise knowledge about the nature of the problem, such as low oil. 

Why Is It So Important?

Car diagnostic tests are useful because they dramatically trim the amount of time of your visit, while also pinpointing the area of the problem. Instead of the auto technician having to make an internal investigation, they can begin checking the area of the problem. The diagnostic can also detect issues before they become severe, letting the specialist perform an adjustment, so you don’t end up with a larger repair bill later on. 

 

The next time you notice an issue with your vehicle or it’s time for an auto maintenance check, contact Dee's Auto Care Specialists for a diagnostic. Located in La Crosse and Onalaska, WI, and Winona, MN, the locally owned shop has been serving customers since 1936. A diagnostic test can help them identify improvements for everything from the engine to the brakes. Schedule an appointment by calling (608) 782-2530, or visit their website to learn more about the auto maintenance shop.

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