What cars use the obd 1 code reader?

OBD-I code readers are used primarily on vehicles manufactured before 1996, as this was the year when the OBD-II standard was adopted in the United States. Common makes that utilize OBD-I include early models from manufacturers like Ford, GM, Chrysler, Honda, and Toyota. Specific models include the 1988-1995 Ford Mustang, 1982-1995 Chevrolet Camaro, and 1991-1995 Honda Accord. Each manufacturer had its own specific diagnostic protocols and connectors for OBD-I systems.