On-Board Diagnostics (OBD)

On-Board Diagnostics (OBD) is a vehicle’s integrated computer system that monitors and reports on the performance of various engine components and emissions. It collects data from sensors to ensure the vehicle runs efficiently, reduces harmful emissions, and helps identify problems early. When an issue arises, OBD triggers a warning light on the dashboard and stores diagnostic trouble codes, which technicians can read with specialized tools. This system enables faster troubleshooting, maintenance, and repair, ultimately improving vehicle reliability, safety, and environmental compliance.