manufacturer specific codes
The 7 Hidden Engine Fault Codes Your Reader Ignores
In 2024, a study showed that 85% of DIY OBD2 scanners only read generic P0XXX codes, leaving seven manufacturer-specific engine fault codes hidden from most owners. What Generic OBD-II Engine Fault Codes Can't Tell You Key Takeaways * Generic P0XXX codes meet federal emissions rules. * They omit brand-specific sensor