On-Board Diagnostics (OBD) is a system that monitors a vehicle’s emissions and performance. OBD1 is the first generation of OBD systems, and it was used in vehicles from 1996 to 2000. OBD1 codes are diagnostic trouble codes that are stored in the vehicle’s computer when a problem is detected.
OBD1 codes can be used to identify a variety of problems, including emissions issues, engine problems, and transmission problems. Checking OBD1 codes can be a helpful way to diagnose and fix problems with your vehicle.