DTC Description
WARNING: This page is about a different car, the 2021 Hyundai Kona. However, it is still accessible from the selected car via links, so may be relevant.
A DTC sets in two cases; when one or two of the "Main" lines connected to CAN High line and CAN Low line suffer an open or short; or when one or two of the "Branch" lines suffer a short. CAN data can be received while it cannot be transmitted.