The **Automotive Electronics** system is a critical component in modern vehicles, enabling advanced functionality and improving driving experience. Within this domain, **Body Electronics & Lighting** plays a key role in managing various vehicle systems, including lighting, door controls, and climate functions. At the heart of this system lies the **Body Control Module (BCM)**, a central electronic control unit responsible for monitoring and controlling non-engine-related vehicle functions. The BCM communicates with other modules through a network, ensuring seamless operation of features such as power windows, locks, lights, and interior sensors. The **MCU (Microcontroller Unit)** is an essential part of the BCM, providing the processing power needed to execute complex tasks and manage real-time operations. It processes input from various sensors and sends commands to actuators, ensuring efficient and reliable performance. MCUs are designed to operate in harsh automotive environments, offering high reliability, low power consumption, and robust protection against electrical noise and temperature fluctuations. These components are widely used in passenger cars, commercial vehicles, and electric vehicles, supporting both traditional and advanced driver assistance systems (ADAS). They enhance vehicle safety, comfort, and energy efficiency, making them indispensable in modern automotive design. Whether it's managing exterior lighting, controlling window mechanisms, or integrating with infotainment systems, the MCU-based Body Control Module ensures smooth and intelligent operation of vehicle functions. This technology is crucial for meeting evolving industry standards and consumer expectations in the automotive sector.