However, a malfunctioning airbag sensor will likely illuminate the airbag warning light on your dashboard. This indicates a problem in the system that needs attention. Depending on the specific fault and how your vehicle's computer systems are programmed, it's *possible* that a severe fault within the airbag system might trigger a limp mode or other reduced-performance safety feature, but this is indirect and unlikely to be a complete engine lock-up. The primary consequence of a faulty airbag sensor is the failure of the airbags to deploy in a crash.