Communication Systems (F-CAN) Description - Overview
F-CAN (High-speed CAN)
The network between the powertrain and control units for chassis system is called F-CAN and it employs high speed CAN with communication rate at 500 kbps.

Detecting signal level by differential voltage
The F-CAN detects the differential voltage generated between two communication wires (F-CAN_H and F-CAN_L) and uses it as a signal level. This is a digital signal that indicates "1" when no differential voltage is found and "0" when differential voltage is found.