Definitions for "On-Board Diagnostics"
A test that allows you to test the control registers, the network controller, the diskette drive system, memory, the cache, the system clock, and watch the network for valid packets.
Computer permanently fitted to a vehicle and programmed to monitor, detect and report on engine and electrical malfunctions.
A system on board of the vehicle that monitors emission control components and alerts the driver (e.g., by a dashboard light) if malfunctions or emission deterioration occurs. The OBD system involves a number of sensors and a data processor, which is typically integrated with the vehicle's electronic management system.