Systems and method are provided and include ultra-wide band (UWB) modules located within a vehicle at module locations that are located at known distances relative to each other. The UWB modules perform UWB distance ranging with a portable device and with each other. A control module instructs each UWB module to perform distance ranging with every other UWB module of the plurality of UWB modules, receives a set of measurements associated with each UWB module, performs a comparison of the measurements with the known distances, and determines locations for each UWB module based on the comparison, the locations being one of the plurality of module locations.