DTC 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 ECM/PCM determines CAN communication error and sets DTC U000100 if communication with other control devices (e.g. ABS) via CAN is impossible or ECM/PCM detects that communication time via CAN exceeds threshold value.