What causes Ford Fusion air bag code 12?

Ford Fusion air bag code 12 typically indicates a problem with the airbag system, specifically related to the system's internal faults or issues with the airbag control module. This code can arise from a variety of issues, including a malfunctioning airbag sensor, wiring problems, or a faulty airbag module itself. It is important to diagnose the specific cause using a scan tool and inspect the related components to ensure proper functionality and safety. Addressing the issue promptly is crucial, as it can affect the deployment of the airbag in the event of a collision.