LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> Lexus >> 2011 >> IS 250C Standard >> Repair and Diagnosis >> External Pages >> Different car >> Section 188 (Multiplex Communication System (Diagnostics - Introduction)) >> Multiplex Communication System >> System Diagram >> System Diagram
April 5, 2026: LEMON Manuals is launched! Read the announcement.

System Diagram

WARNING: This page is about a different car, the 2011 Lexus IS 350 and 2011 Lexus IS 250. However, it is still accessible from the selected car via links, so may be relevant.
Item Details
Number of BEAN connected ECUs *1 18
Number of CAN connected ECUs *1 10
Number of AVC-LAN connected ECUs *1 6
Gateway function between BEAN and diagnosis Gateway ECU
Gateway function between BEAN and AVC-LAN Gateway ECU
Gateway function between BEAN and CAN Gateway ECU
ECU in charge of vehicle customization information Gateway ECU
Protocol CAN, BEAN and AVC-LAN

HINT: 

*1: Optional ECUs are also included.

Fig 1: Identifying Multiplex Communication System Diagram (1 Of 3)
GTY357714Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
Fig 2: Identifying Multiplex Communication System Diagram (2 Of 3)
GTY131441Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
Fig 3: Identifying Multiplex Communication System Diagram (3 Of 3)
GTY356258Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002