The Controller Area Network (CAN) is widely used in automotive and industrial applications. The CAN FD is a freestanding controller for the CAN. The Bosch CAN 2.0B standard (2.0B Active) and the CAN FD (flexible data-rate) are both met by the CAN FD, which was created in line with ISO 11898-1:2015.The success of CAN is largely due to its sophisticated error detection features, which improve communication reliability, and its unique fault confinement, which ensures network-wide data consistency. Reliable implementations are essential due to their basic importance in all facets of security and safety. The enhanced protocol surpasses the limitations of the original may: data may be carried at a rate more than 1 Mbit/s, and the payload (data field) is no longer restricted to 8 bytes but can now be up to 64 bytes long. Because there is only one node sending, the data rate may be raised.