LIN Communication
WARNING: This page is about a different car, the 2020 Ford F-150. However, it is still accessible from the selected car via links, so may be relevant.
The IPMB communicates with the rear parking aid camera via a LIN circuit, which is a dedicated single wire communication network. The messages are sent between the IPMB and rear parking aid camera to generate some PTBA system graphics and to change the view transmitted by the rear parking aid camera to a more downward view for improved images of the sticker on the trailer.