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Automotive Locksmith Key Programming Modern automobiles require some kind of key programming. Depending on the model and manufacturer the process could be as simple as using a spare key to programme the computer onboard, or as complicated as OBD2 programming or EEPROM. Most US and Asian automakers have a programming protocol that they share with auto tool makers, so they can design software or hardware for automotive locksmiths. Transponder Chips Transponder chips are found in a lot of modern cars