Modern cars are packed with sensors and systems that make diagnosing problems both easier and more complex. Understanding how to read fault codes, use diagnostic tools, and interpret symptoms can save ...

OEM diagnostic tools give mechanics and advanced DIYers dealership-level access to a vehicle’s systems, making it possible to diagnose and repair with precision. They go beyond basic OBD2 code readers ...

CR advises on what products and services to buy in a car dealership's finance office, looking at extended warranties, VIN ...