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System Diagram [06/2014 - 08/2015]

  1. OVERALL CAN BUS DIAGRAM 
    1. w/o Network Gateway ECU

      The CAN communication system is composed of 2 buses.

      Fig 1: CAN Bus System Diagram - W/O Network Gateway ECU
      GTY510520Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      1 ECM
      (for V Bus)      		 2 Main Body ECU (Multiplex Network Body ECU)
      (for V Bus and Sub Bus 1*)
      3 Air Conditioning Amplifier Assembly
      (for V Bus)      		 4 Telematics Transceiver
      (for Lexus Enform Remote Compatible Type)
      (for V Bus)
      5 Headlight Leveling ECU Assembly
      (for V Bus)      		 6 Certification ECU (Smart Key ECU Assembly)
      (for V Bus)
      7 Power Steering ECU Assembly
      (for V Bus)      		 8 Steering Sensor
      (for V Bus)
      9 Skid Control ECU (Brake Actuator Assembly)
      (for V Bus)      		 10 Option Connector (Bus Buffer ECU)
      (for V Bus)
      11 Airbag Sensor Assembly
      (for V Bus)      		 12 Yaw Rate Sensor
      (for V Bus)
      13 Radio Receiver Assembly
      (for V Bus)      		 14 DLC3
      (for V Bus)
      15 Combination Meter Assembly
      (for V Bus)      		 16 Outer Mirror Control ECU Assembly (for Driver Side)
      (w/ Seat Position Memory System)
      (for Sub Bus 1)
      17 Outer Mirror Control ECU Assembly (for Front Passenger Side)
      (w/ Seat Position Memory System)
      (for Sub Bus 1)      		 18 Multiplex Tilt and Telescopic ECU
      (w/ Power Tilt and Power Telescopic System)
      (for Sub Bus 1)
      19 Front Power Seat Switch LH
      (w/ Seat Position Memory System)
      (for Sub Bus 1)      		 20 Rear Television Camera Assembly
      (w/ Parking Assist Monitor System)
      (for Sub Bus 1)
      21 No. 1 CAN Junction Terminal
      (for Sub Bus 1)      		 - -
      1. *: w/ Seat Position Memory System, Power Tilt and Power Telescopic System or Parking Assist Monitor System

      HINT: 

      • The main body ECU (multiplex network body ECU) functions as a gateway between the V bus and sub bus 1.
      • Refer to the following bus wiring diagrams for details.
    2. w/ Network Gateway ECU

      The CAN communication system is composed of 5 buses.

      Fig 2: CAN Bus System Diagram - W/ Network Gateway ECU
      GTY503914Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      1 ECM
      (for V Bus)      		 2 Network Gateway ECU
      (for V Bus and Sub Bus 2)
      3 Main Body ECU (Multiplex Network Body ECU)
      (for V Bus and Sub Bus 1*1)      		 4 Skid Control ECU (Brake Actuator Assembly)
      (for V Bus and V3 Bus*2)
      5 Telematics Transceiver
      (for Lexus Enform Remote Compatible Type)
      (for V Bus)      		 6 Front Steering Control ECU
      (w/ VGRS System)
      (for V Bus and V3 Bus)
      7 Air Conditioning Amplifier Assembly
      (for V Bus)      		 8 Steering Sensor
      (for V Bus)
      9 Headlight Leveling ECU Assembly
      (for V Bus)      		 10 Certification ECU (Smart Key ECU Assembly)
      (for V Bus)
      11 DLC3
      (for V Bus)      		 12 Airbag Sensor Assembly
      (for V Bus)
      13 Yaw Rate Sensor
      (for V Bus)      		 14 Power Steering ECU Assembly
      (for V Bus and V3 Bus*2)
      15 Radio Receiver Assembly
      (for V Bus)      		 16 Combination Meter Assembly
      (for V Bus)
      17 Outer Mirror Control ECU Assembly (for Driver Side)
      (w/ Seat Position Memory System)
      (for Sub Bus 1)      		 18 Outer Mirror Control ECU Assembly (for Front Passenger Side)
      (w/ Seat Position Memory System)
      (for Sub Bus 1)
      19 Multiplex Tilt and Telescopic ECU
      (w/ Power Tilt and Power Telescopic System)
      (for Sub Bus 1)      		 20 Front Power Seat Switch LH
      (w/ Seat Position Memory System)
      (for Sub Bus 1)
      21 Rear Television Camera Assembly
      (w/ Parking Assist Monitor System)
      (for Sub Bus 1)      		 22 No. 1 CAN Junction Terminal
      (for Sub Bus 1)
      23 Driving Support ECU Assembly
      (w/ Pre-collision System)
      (for Sub Bus 2 and Sub Bus 13)      		 24 4WD ECU Assembly
      (for AWD)
      (for Sub Bus 2)
      25 Absorber Control ECU
      (w/ AVS System)
      (for Sub Bus 2 and V3 Bus*2)      		 26 Lane Departure Warning Camera
      (w/ Lane Departure Alert System)
      (for Sub Bus 2)
      27 Clearance Warning ECU Assembly
      (w/ Intuitive Parking Assist System)
      (for Sub Bus 2)      		 28 Blind Spot Monitor Sensor LH
      (w/ Blind Spot Monitor System)
      (for Sub Bus 2)
      29 Option Connector (Bus Buffer ECU)
      (w/ Option Connector)
      (for Sub Bus 2)      		 30 No. 2 CAN Junction Terminal
      (for Sub Bus 2)
      31 Millimeter Wave Radar Sensor Assembly
      (w/ Pre-collision System)
      (for Sub Bus 13)      		 - -
      • *1: w/ Seat Position Memory System, Power Tilt and Power Telescopic System or Parking Assist Monitor System
      • *2: w/ VGRS System

      HINT: 

      • The main body ECU (multiplex network body ECU) functions as a gateway between the V bus and sub bus 1.
      • The network gateway ECU functions as a gateway between the V bus and sub bus 2.
      • The driving support ECU assembly functions as a gateway between the sub bus 2 and sub bus 13.
      • Refer to the following bus wiring diagrams for details.
  2. V BUS 
    1. w/o Network Gateway ECU
      Fig 3: CAN Communication V BUS System Diagram - W/O Network gateway ECU (1 Of 3)
      GTY520215Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      Fig 4: CAN Communication V BUS System Diagram - W/O Network gateway ECU (2 Of 3)
      GTY518846Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      Fig 5: CAN Communication V BUS System Diagram - W/O Network gateway ECU (3 Of 3)
      GTY458322Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

      HINT: 

      The CAN communication system connects to other networks via ECUs that function as a gateway.

      Refer to SYSTEM DIAGRAM [04/2013 - 09/2022]

    2. w/ Network Gateway ECU
      Fig 6: CAN Communication V BUS System Diagram - W/ Network gateway ECU (1 Of 3)
      GTY519722Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      Fig 7: CAN Communication V BUS System Diagram - W/ Network gateway ECU (2 Of 3)
      GTY509371Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      Fig 8: CAN Communication V BUS System Diagram - W/ Network gateway ECU (3 Of 3)
      GTY458324Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

      HINT: 

      The CAN communication system connects to other networks via ECUs that function as a gateway.

      Refer to SYSTEM DIAGRAM [04/2013 - 09/2022]

  3. SUB BUS 1 (w/ Seat Position Memory System, Power Tilt and Power Telescopic System or Parking Assist Monitor System) 
    Fig 9: CAN Communication SUB BUS 1 System Diagram - W/ Seat Position Memory System, Power Tilt and Power Telescopic System or Parking Assist Monitor System (1 Of 2)
    GTY507665Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    Fig 10: CAN Communication SUB BUS 1 System Diagram - W/ Seat Position Memory System, Power Tilt and Power Telescopic System or Parking Assist Monitor System (2 Of 2)
    GTY503491Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  4. SUB BUS 2 (w/ Network gateway ECU) 
    Fig 11: CAN Communication SUB BUS 2 System Diagram - W/ Network Gateway ECU) (1 Of 2)
    GTY465927Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    Fig 12: CAN Communication SUB BUS 2 System Diagram - W/ Network Gateway ECU) (2 Of 2)
    GTY514769Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  5. SUB BUS 13 (w/ Pre-collision System) 
    Fig 13: CAN Communication SUB BUS 13 System Diagram - W/ Pre-collision System
    GTY456276Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  6. V3 Bus (w/ VGRS System) 
    Fig 14: CAN CommunicationV3 BUS System Diagram - W/ VGRS System
    GTY461679Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
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