DTC B1602: CAN Error: General Description
WARNING: This page is about a different car, the 2015 Kia Forte5, 2015 Kia Forte Koup, and 2015 Kia Forte. However, it is still accessible from the selected car via links, so may be relevant.
This is DTC which is related with communication error between SJB and other units.
* Body CAN communication Control Units: BCM (Body Control Module), PSM (Power Seat Module), SMK (Smart Key), SJB (Smart Junction Box).
*1 CAN (Controller Area Network): CAN is serial bus communication type which links not only communication system but also control units each other.
*2 LIN (Local Interconnect Network): LIN is serial communication type which is used in electrical control system. (This is less expensive.)