Genuine OEM Citroen Obstacle Detection Control Unit, part number 1617138980. This electronic control unit manages and processes data received from the vehicle's obstacle detection sensors, enabling accurate parking assistance and proximity warnings. It is typically mounted behind the bumper. Weighing approximately 0.108 kg, this compact module is crucial for the proper functioning of the parking system. Opting for a genuine OEM control unit ensures it comes with the correct firmware and is precisely calibrated to work seamlessly with other factory sensors and systems, preventing false readings or malfunctions.