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Multiplex Communication System - Communication Bus: Notes

WARNING: This page is about a different car, the 2008 Lexus SC 430. However, it is still accessible from the selected car via links, so may be relevant.
Fig 1: Multiplex Communication System (Communication Bus) - Circuit Diagram (1 Of 4)
G07611941Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
Fig 2: Multiplex Communication System (Communication Bus) - Circuit Diagram (2 Of 4)
G07611942Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
Fig 3: Multiplex Communication System (Communication Bus) - Circuit Diagram (3 Of 4)
G07611943Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
Fig 4: Multiplex Communication System (Communication Bus) - Circuit Diagram (4 Of 4)
G07611944Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002