On-board diagnostics (OBD) is a system that monitors a vehicle’s performance and emissions. OBD2 is the second generation of this system, and it is required on all vehicles manufactured since 1996. OBD2 codes are diagnostic trouble codes that are stored in the vehicle’s computer when a problem is detected.
Knowing how to check OBD2 codes can be helpful for several reasons. First, it can help you identify the source of a problem with your vehicle. Second, it can help you save money on repairs by avoiding unnecessary trips to the mechanic. Third, it can help you keep your vehicle running safely and efficiently.