Genuine OEM Mazda Blind Spot Control Module, part number B0J867Y30D. This module processes data from the blind spot monitoring sensors to detect vehicles in the driver's blind spots. It is a key component of the vehicle's advanced driver-assistance systems (ADAS), typically located within the vehicle's electrical system, often near the rear bumper or side mirrors. Genuine OEM modules are calibrated for precise detection and reliable operation of safety features.