DTC C1866-87: CAN Time-Out ICSC: General Description
WARNING: This page is about a different car, the 2024 Kia Sorento. However, it is still accessible from the selected car via links, so may be relevant.
The CLU module and the MDPS unit communicate with each other. The change signals in driving mode are displayed in the cluster by sending/receiving signals to each other, and the MDPS unit changes the steering accordingly.