<p></p> <img src="https://s3.us-east-2.amazonaws.com/dcr-apis/wp_contents/uploads/DCR-ADMIN/AdobeStock_341429200.webp" alt="undefined" style="height: ;width: "/> <p></p> <p><em>Originally written by Dave Kusa of Autotrend Diagnostics </em></p> <p>If the “check engine” light on your vehicle’s dashboard is illuminated, you should get a diagnosis as soon as possible to avoid a major issue. However, it’s important to realize that not all diagnoses are alike. Here are some of your options for obtaining a “check engine” light diagnosis:&nbsp;</p> <p><strong>Repair/parts supply chain</strong><br>In recent years, some auto repair and parts supply chains have offered to diagnose “check engine” lights for free, using a basic diagnostic scanner to obtain a code that indicates the issue. However, because they rely on a basic scan, the diagnoses obtained by such establishments are rarely conclusive, but rather should be considered the first step of a more in-depth process.&nbsp;</p> <p><strong>Do-it-yourself</strong><br>Another popular option nowadays is to go the DIY route. Basic hand-held diagnostic scanners can be purchased for under $50, and once you obtain a diagnostic code, you can perform a Web search to determine the likely cause and learn how to remedy the issue. However, since a basic scanner doesn’t offer a conclusive diagnosis, making major repairs based on a code alone can be a gamble.&nbsp;</p> <p><strong>Independent repair shop</strong><br>To ensure both an accurate diagnosis and a correct repair, you should take your vehicle to a reputable, industry-certified repair shop. Since an accurate diagnosis requires sophisticated, often manufacturer-specific equipment, it’s important to find a shop that possesses these tools. Furthermore, a certified shop’s verifiable knowledge will enable its technicians to get to the root of the problem.&nbsp;</p> <p><a href="https://www.diamondcertified.org/" target="_self">Use Diamond Certified Resource to find top rated companies.</a></p> <p><strong>Local, Top Rated Diamond Certified Companies Related to Your Topic</strong><br><a href="https://www.diamondcertified.org/santa-clara-auto-repair/" target="_self">Santa Clara County Auto Repair Shops</a><br><a href="https://www.diamondcertified.org/sonoma-auto-repair/" target="_self">Sonoma County Auto Repair Shops</a><br><a href="https://www.diamondcertified.org/san-francisco-auto-repair/" target="_self">San Francisco Auto Repair Shops</a><br><a href="https://www.diamondcertified.org/alameda-auto-repair/" target="_self">Alameda County Auto Repair Shops</a><br><a href="https://www.diamondcertified.org/marin-auto-repair/" target="_self">Marin County Auto Repair Shops</a></p> <p><strong>Related Articles</strong><br><a href="https://www.diamondcertified.org/Guide/Car-Repairs-Maintenance/" target="_self">The Essential Guide to Car Repairs &amp; Maintenance</a> <br><a href="https://www.diamondcertified.org/find-expert-advice/" target="_self">Get Expert Advice From Owners of Top Rated Local Companies</a><br><a href="https://www.diamondcertified.org/membership/" target="_self">Become a Diamond Certified Preferred Member (Always Free)</a>&nbsp;</p>