A car diagnostic test is a digital analysis of your car’s various computer systems and components. Modern vehicles are much more digitized than people may be aware of. Specialized software works whenever your car’s engine is powered on to monitor various features and create data reports that can then be collected and analyzed during a car diagnostic test.Car diagnostic tests scan your car’s components and systems to check for issues with components like the engine, transmission, oil tank, throttle, and many more.Because car diagnostic tests require specific devices and expertise to read correctly, most tests are performed with mechanics or at dealer shops. However, you can also perform a car diagnostic test at home if you have the proper knowledge and equipment.Car diagnostic tests are typically carried out when a vehicle’s dashboard shows a “check engine” signal or other warning light illumination. They can also be performed as part of regular maintenance appointments.
