K183 UHF Short Range Low Energy Remote Control Access Transceiver
The K183 UHF Short Range Low Energy Remote Control Access Transceiver, also referred to as Virtual Key Module (VKM) is the primary control module for the Digital Key system. It receives a constant B+ voltage and ground. The VKM communicates with the vehicle via AUTOSAR CAN Bus 5 and with each UHF Low Energy Remote Control Access Sensor Transceiver, also referred to as Virtual Key Sensor (VKS) via Virtual Key Private CAN. The VKM acts as the serial data master to the VKS. The VKM is typically located in a central location of the vehicle interior, often in the center console area. This is to ensure consistent wireless communication coverage in the interior of the vehicle. The VKM processes information from each VKS, as well as it's own information and determines the position of the mobile devices with respect to the vehicle. Mobile devices position is communicated to BCM in order to allow lock/unlock/starting/key minder in the designated zones.