Why won't my 94 Lexus link to my obd 2?

Your 1994 Lexus may not link to your OBD II scanner because it could be using the older OBD I system, which is not compatible with OBD II scanners. Additionally, the diagnostic connector could be faulty, or there might be issues with the vehicle's electronics or fuses. Check if your specific model requires an adapter or a different protocol. Ensure that the scanner is functioning properly by testing it on another vehicle.