What does OBD II stand for?

The correct answer, On-Board Diagnostics II, refers to a standardized system that monitors vehicle performance and emissions. OBD II is an advanced automotive diagnostics system used in most vehicles manufactured from 1996 onward. Its main purpose is to facilitate easier troubleshooting of problems that affect the vehicle's emissions and ensure compliance with air quality regulations.

The system not only provides critical data about the engine's performance but also generates trouble codes for various issues that may arise. This allows technicians to swiftly identify and correct problems, which is crucial for maintaining optimal vehicle performance and minimizing harmful emissions.

OBD II is the second generation of the On-Board Diagnostics system, which was initially introduced as OBD I. It expanded upon the functionalities of its predecessor by providing more detailed data and establishing a standardized connector for diagnostic tools, streamlining the repair process across different vehicle makes and models.