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CAN Communication Control Circuit

WARNING: This page is about a different car, the 2011 Infiniti G37. However, it is still accessible from the selected car via links, so may be relevant.
Fig 1: CAN Communication Control - Communication Diagram
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COMPONENT DESCRIPTION CHART

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.
Noise filter It eliminates noise of CAN communication signal.
Termination circuit(1) (Resistance of approx. 120 Ω) It produces potential difference.
(1) These are the only control units wired with both ends of CAN communication system.