DTC C160E-00: P-CAN Bus Off: General Description
WARNING: This page is about a different car, the 2021 Kia Seltos. However, it is still accessible from the selected car via links, so may be relevant.
The IBU-SMK is one of modules that make up the body control system. The IBU-SMK uses P-CAN (powertrain CAN) to communicate with other modules to receive required data and transmit needed data.