Genuine OEM Volkswagen Access And Start Control Unit, part number 5WA959436B. This control unit manages keyless entry, vehicle locking, and engine start authorization, playing a vital role in vehicle security and convenience. It is an integral part of the vehicle's electronic security system. Weighing approximately 0.12 kg, this module ensures reliable operation. Using a genuine OEM control unit guarantees correct firmware, secure communication protocols, and seamless integration with the vehicle's immobilizer and other electronic systems.