For some time now, vehicles sold across the world have had the ability to self diagnose their problems. This capacity is referred to in the industry as on-board diagnostics, or OBD. On-board computers ...

This article was updated in August 2025 with new products and information. That little yellow check-engine light is sneaky. Most of the time, you forget it could be there. But when it detects an issue ...

CarVitals using OBD-II is a Python script designed to connect to a vehicle's OBD-II port, retrieve diagnostic data, generate a PDF report, and optionally send it via email. An OBD-II adapter (e.g., ...

That's where OBD-II scanners come in, giving enthusiasts and everyday drivers a window into their vehicle's diagnostic systems. If you're chasing down the cause of a check-engine light, ensuring peak ...