DTC B1699-00: CAN Time-Out AV/AVN: 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.
Low speed CAN network is a bus structure that consists of CAN high line and CAN low line. The CAN lines compose one main line and many branch lines. Branch lines that are attached to the main line serves as a bridge among control modules.
The network is optimized for dealing with open, short, or poor contact and employed in the M-CAN system that administers multimedia devices.
Communication through the low speed CAN network is feasible even when one of the two lines suffers an open or poor contact, using only one line. However, communication will slow down and an error will occur.