What does obd code?

OBD codes, or On-Board Diagnostics codes, are standardized codes used by automotive technicians to diagnose issues within a vehicle's engine and other systems. These codes are generated by the vehicle's onboard computer when it detects a malfunction or problem, indicating specific areas that need attention. Each code corresponds to a particular issue, allowing for efficient troubleshooting and repairs. Commonly, these codes begin with a letter followed by four digits, such as P0301 for a misfire in cylinder one.