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CAN COMMUNICATION SYSTEM : CAN Communication Control Circuit

WARNING: This page is about a different car, the 2011 Nissan Juke. However, it is still accessible from the selected car via links, so may be relevant.

CAN communication control circuit is incorporated into the control unit and transmits/receives CAN communication signals.

Fig 1: CAN Communication Control Circuit
G06934927Courtesy of NISSAN MOTOR CO., U.S.A.
CAN COMMUNICATION SYSTEM COMPONENT DESCRIPTION CHART (1 OF 2)

Component System description
CAN controller It controls CAN communication signal transmission and reception, error detection, etc.
Transceiver IC It converts digital signal into CAN communication signal, and CAN communication signal into digital signal.
CAN COMMUNICATION SYSTEM COMPONENT DESCRIPTION CHART (2 OF 2)

Component System description
Noise filter It eliminates noise of CAN communication signal.
Termination circuit(1)
(Resistance of approx. 120 Ω)
Generates a potential difference between CAN-H and CAN-L.
(1) These are the only control units wired with both ends of CAN communication system.