Circuit/System Description
WARNING: This page is about a different car, the 2022 Cadillac CT4. However, it is still accessible from the selected car via links, so may be relevant.
The Ethernet bus is used to communicate between the control modules. This Ethernet harness consists of a single twisted copper pair of wires (circuits 7224 & 7225) from point to point. The K124 Image Processing Module has 2 processors. The Ethernet connection between 2 processors is internal to the control module. If one processor loses communication with the other processor, the control module will need to be replaced.