An OBD scan, also known as OBD scan or OBD-II scan, refers to the process of connecting a diagnostic tool to a vehicle’s OBD-II (On-Board Diagnostics version 2) port to retrieve diagnostic information and trouble codes from the vehicle’s onboard computer system.
The OBD-II system is present in most modern vehicles, typically manufactured after 1996 in the United States (or after 2001 in Europe), and it provides standardized access to various data points and diagnostics to aid in vehicle troubleshooting and maintenance.
The OBD scan tool communicates with the vehicle’s onboard computer through the OBD-II port, which is usually located under the dashboard on the driver’s side. Once connected, the tool can retrieve information about various vehicle parameters, such as engine performance, emissions systems, transmission, and other important components.
By performing an OBD scan, mechanics, technicians, or car enthusiasts can access real-time data and retrieve trouble codes generated by the vehicle’s computer when it detects a problem. These trouble codes (known as Diagnostic Trouble Codes or DTCs) provide valuable information about potential issues with the vehicle. The codes help to pinpoint specific problems, allowing users to diagnose and address the root cause of malfunctions more efficiently.
Overall, OBD scans play a crucial role in modern vehicle diagnostics, enabling professionals and car owners to identify and resolve issues, perform regular maintenance, and ensure the vehicle operates optimally while meeting emissions standards.