We recommend that you contact us before purchasing to check compatibility with your car via chassis number. The control unit FCA 52216842 is a sophisticated electronic component (BECU - Battery Electronic Control Unit) designed to manage the architecture 12V Mild Hybrid of the Fiat and Lancia models. Core function: Constantly monitors the state of charge (SoC), health (SoH) and temperature of the lithium-ion auxiliary battery. Energy Management: Coordinates the energy flow between the lithium battery (under the driver's seat) and the traditional on-board network. Vehicle Interface: Communicates via CAN-bus network with the engine control unit to enable functions such as: Sailing/Veiling: Switching off the combustion engine below 30 km/h (putting it in neutral). This component is specific.
