CAN COMMUNICATION SYSTEM SYSTEM DIAGRAM


  1. OVERALL CAN BUS DIAGRAM (for LHD)


    1. w/o Network Gateway ECU

      The CAN communication system is composed of 2 buses.

      A01VR56C01
      1

      ECM

      (for V Bus)

      		 2

      Main Body ECU (Multiplex Network Body ECU)

      (for V Bus and Sub Bus 1 (w/ Seat Position Memory System, Power Tilt and Power Telescopic System or Triple Beam Headlight))
      3

      Option Connector (Bus Buffer ECU)

      (for V Bus)

      		 4

      Skid Control ECU (Brake Actuator Assembly)

      (for V Bus)
      5

      DLC3

      (for V Bus)

      		 6

      Power Steering ECU Assembly

      (for V Bus)
      7

      Steering Sensor

      (for V Bus)

      		 8

      Yaw Rate Sensor

      (for V Bus)
      9

      Headlight Leveling ECU Assembly

      (for Single Beam Headlight)

      (for V Bus)

      		 10

      Airbag Sensor Assembly

      (for V Bus)
      11

      Certification ECU (Smart Key ECU Assembly)

      (for V Bus)

      		 12

      Radio Receiver Assembly

      (for V Bus)
      13

      Air Conditioning Amplifier Assembly

      (for V Bus)

      		 14

      Engine Stop and Start ECU

      (w/ Stop and Start System)

      (for V Bus)
      15

      Stereo Component Equalizer Assembly

      (w/ ASC System)

      (for V Bus)

      		 16

      Combination Meter Assembly

      (for V Bus)
      17

      Multiplex Tilt and Telescopic ECU

      (w/ Power Tilt and Power Telescopic System)

      (for Sub Bus 1)

      		 18

      Outer Mirror Control ECU Assembly (for Driver Side)

      (w/ Seat Position Memory System)

      (for Sub Bus 1)
      19

      Position Control ECU and Switch Assembly LH

      (w/ Seat Position Memory System)

      (for Sub Bus 1)

      		 20

      Headlight Light Control ECU Sub-assembly LH

      (for Triple Beam Headlight)

      (for Sub Bus 1)
      21

      Position Control ECU and Switch Assembly RH

      (w/ Seat Position Memory System)

      (for Sub Bus 1)

      		 22

      Outer Mirror Control ECU Assembly (for Front Passenger Side)

      (w/ Seat Position Memory System)

      (for Sub Bus 1)
      23

      No. 1 CAN Junction Terminal

      (w/ Seat Position Memory System, Power Tilt and Power Telescopic System or Triple Beam Headlight)

      (for Sub Bus 1)

      		 - -

      Tech Tips


      • 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.

      A01VRL5C01
      1

      ECM

      (for V Bus)

      		 2

      Main Body ECU (Multiplex Network Body ECU)

      (for V Bus and Sub Bus 1 (w/ Seat Position Memory System, Power Tilt and Power Telescopic System or Triple Beam Headlight))
      3

      Network Gateway ECU

      (for V Bus, Sub Bus 2 (w/o VGRS System) or Sub Bus 18 (w/ VGRS System) and Sub Bus 19 (w/ VGRS System))

      		 4

      Skid Control ECU (Brake Actuator Assembly)

      (for V Bus and Sub Bus 19 (w/ VGRS System))
      5

      DLC3

      (for V Bus)

      		 6

      Power Steering ECU Assembly

      (for V Bus and Sub Bus 19 (w/ VGRS System))
      7

      Steering Sensor

      (for V Bus)

      		 8

      Front Steering Control ECU

      (w/ VGRS System)

      (for V Bus and Sub Bus 19)
      9

      Yaw Rate Sensor

      (for V Bus)

      		 10

      Engine Stop and Start ECU

      (w/ Stop and Start System)

      (for V Bus)
      11

      Headlight Leveling ECU Assembly

      (for Single Beam Headlight)

      (for V Bus)

      		 12

      Airbag Sensor Assembly

      (for V Bus)
      13

      Certification ECU (Smart Key ECU Assembly)

      (for V Bus)

      		 14

      Radio Receiver Assembly

      (for V Bus)
      15

      Air Conditioning Amplifier Assembly

      (for V Bus)

      		 16

      Stereo Component Equalizer Assembly

      (w/ ASC System)

      (for V Bus)
      17

      Combination Meter Assembly

      (for V Bus)

      		 18

      Multiplex Tilt and Telescopic ECU

      (w/ Power Tilt and Power Telescopic System)

      (for Sub Bus 1)
      19

      Outer Mirror Control ECU Assembly (for Driver Side)

      (w/ Seat Position Memory System)

      (for Sub Bus 1)

      		 20

      Position Control ECU and Switch Assembly LH

      (w/ Seat Position Memory System)

      (for Sub Bus 1)
      21

      Headlight Light Control ECU Sub-assembly LH

      (for Triple Beam Headlight)

      (for Sub Bus 1)

      		 22

      Position Control ECU and Switch Assembly RH

      (w/ Seat Position Memory System)

      (for Sub Bus 1)
      23

      Outer Mirror Control ECU Assembly (for Front Passenger Side)

      (w/ Seat Position Memory System)

      (for Sub Bus 1)

      		 24

      No. 1 CAN Junction Terminal

      (w/ Seat Position Memory System, Power Tilt and Power Telescopic System or Triple Beam Headlight)

      (for Sub Bus 1)
      25

      Rear Steering Control ECU

      (w/ VGRS System)

      (for Sub Bus 19)

      		 26

      Absorber Control ECU

      (w/ AVS System)

      (for Sub Bus 2 (w/o VGRS System) or Sub Bus 18 (w/ VGRS System) and Sub Bus19 (w/ VGRS System))
      27

      No. 3 CAN Junction Terminal

      (w/ VGRS System)

      (for Sub Bus 19)

      		 28

      Driving Support ECU Assembly

      (w/ Pre-crash Safety System)

      (for Sub Bus 2 (w/o VGRS System) or Sub Bus 18 (w/ VGRS System) and Sub Bus 13)
      29

      Clearance Warning ECU Assembly

      (w/ LEXUS Parking Assist-sensor System)

      (for Sub Bus 2 (w/o VGRS System) or Sub Bus 18 (w/ VGRS System))

      		 30

      Lane Departure Warning Camera

      (w/ Lane Departure Alert System)

      (for Sub Bus 2 (w/o VGRS System) or Sub Bus 18 (w/ VGRS System))
      31

      Blind Spot Monitor Sensor LH

      (w/ Blind Spot Monitor System)

      (for Sub Bus 2 (w/o VGRS System) or Sub Bus 18 (w/ VGRS System))

      		 32

      Option Connector (Bus Buffer ECU)

      (w/ Option Connector)

      (for Sub Bus 2 (w/o VGRS System) or Sub Bus 18 (w/ VGRS System))
      33

      Telematics Transceiver

      (w/ Telematics Transceiver)

      (for Sub Bus 2 (w/o VGRS System))

      		 34

      No. 2 CAN Junction Terminal

      (for Sub Bus 2 (w/o VGRS System) or Sub Bus 18 (w/ VGRS System))
      35

      Millimeter Wave Radar Sensor Assembly

      (w/ Pre-crash Safety System)

      (for Sub Bus 13)

      		 - -

      Tech Tips


      • 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 (w/o VGRS System) or sub bus 18 (w/ VGRS System).

      • The network gateway ECU functions as a gateway between the V bus and sub bus 19.

      • The driving support ECU assembly functions as a gateway between the sub bus 2 (w/o VGRS System) or sub bus 18 (w/ VGRS System) and sub bus 13.

      • Refer to the following bus wiring diagrams for details.

  2. V BUS (for LHD)


    1. w/o Network Gateway ECU

      A01VRX0E01
      A01VRIIE01

      Tech Tips

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

      Click here

    2. w/ Network Gateway ECU

      A01VRPLE01
      A01VT3BE01

      Tech Tips

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

      Click here

  3. SUB BUS 1 (for LHD with Seat Position Memory System, Power Tilt and Power Telescopic System or Triple Beam Headlight)

    A01VS1AE10
    A01VT48E01

  4. SUB BUS 2 (for LHD with Network Gateway ECU without VGRS System)

    A01VT40E01
    A01VROME07

  5. SUB BUS 13 (for LHD with Pre-crash Safety System)

    A01VSGHE13

  6. SUB BUS 18 (for LHD with VGRS System)

    A01VT0KE03
    A01VROME08

  7. SUB BUS 19 (for LHD with VGRS System)

    A01VTAWE03

  8. OVERALL CAN BUS DIAGRAM (for RHD)


    1. w/o Network Gateway ECU

      The CAN communication system is composed of 2 buses.

      A01VRXDC01
      1

      ECM

      (for V Bus)

      		 2

      Main Body ECU (Multiplex Network Body ECU)

      (for V Bus and Sub Bus 1 (w/ Seat Position Memory System, Power Tilt and Power Telescopic System or Triple Beam Headlight))
      3

      Option Connector (Bus Buffer ECU)

      (for V Bus)

      		 4

      Skid Control ECU (Brake Actuator Assembly)

      (for V Bus)
      5

      DLC3

      (for V Bus)

      		 6

      Power Steering ECU Assembly

      (for V Bus)
      7

      Steering Sensor

      (for V Bus)

      		 8

      Yaw Rate Sensor

      (for V Bus)
      9

      Headlight Leveling ECU Assembly

      (for Single Beam Headlight)

      (for V Bus)

      		 10

      Airbag Sensor Assembly

      (for V Bus)
      11

      Certification ECU (Smart Key ECU Assembly)

      (for V Bus)

      		 12

      Radio Receiver Assembly

      (for V Bus)
      13

      Air Conditioning Amplifier Assembly

      (for V Bus)

      		 14

      Engine Stop and Start ECU

      (w/ Stop and Start System)

      (for V Bus)
      15

      Combination Meter Assembly

      (for V Bus)

      		 16

      Multiplex Tilt and Telescopic ECU

      (w/ Power Tilt and Power Telescopic System)

      (for Sub Bus 1)
      17

      Outer Mirror Control ECU Assembly (for Driver Side)

      (w/ Seat Position Memory System)

      (for Sub Bus 1)

      		 18

      Position Control ECU and Switch Assembly LH

      (w/ Seat Position Memory System)

      (for Sub Bus 1)
      19

      Headlight Light Control ECU Sub-assembly LH

      (for Triple Beam Headlight)

      (for Sub Bus 1)

      		 20

      Position Control ECU and Switch Assembly RH

      (w/ Seat Position Memory System)

      (for Sub Bus 1)
      21

      Outer Mirror Control ECU Assembly (for Front Passenger Side)

      (w/ Seat Position Memory System)

      (for Sub Bus 1)

      		 22

      No. 1 CAN Junction Terminal

      (w/ Seat Position Memory System, Power Tilt and Power Telescopic System or Triple Beam Headlight)

      (for Sub Bus 1)

      Tech Tips


      • 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.

      A01VRPHC01
      1

      ECM

      (for V Bus)

      		 2

      Main Body ECU (Multiplex Network Body ECU)

      (for V Bus and Sub Bus 1 (w/ Seat Position Memory System, Power Tilt and Power Telescopic System or Triple Beam Headlight))
      3

      Network Gateway ECU

      (for V Bus, Sub Bus 2 (w/o VGRS System) or Sub Bus 18 (w/ VGRS System) and Sub Bus 19 (w/ VGRS System))

      		 4

      Skid Control ECU (Brake Actuator Assembly)

      (for V Bus and Sub Bus 19 (w/ VGRS System))
      5

      Power Steering ECU Assembly

      (for V Bus and Sub Bus 19 (w/ VGRS System))

      		 6

      DLC3

      (for V Bus)
      7

      Front Steering Control ECU

      (w/ VGRS System)

      (for V Bus and Sub Bus 19)

      		 8

      Steering Sensor

      (for V Bus)
      9

      Engine Stop and Start ECU

      (w/ Stop and Start System)

      (for V Bus)

      		 10

      Yaw Rate Sensor

      (for V Bus)
      11

      Headlight Leveling ECU Assembly

      (for Single Beam Headlight)

      (for V Bus)

      		 12

      Airbag Sensor Assembly

      (for V Bus)
      13

      Certification ECU (Smart Key ECU Assembly)

      (for V Bus)

      		 14

      Radio Receiver Assembly

      (for V Bus)
      15

      Air Conditioning Amplifier Assembly

      (for V Bus)

      		 16

      Stereo Component Equalizer Assembly

      (w/ ASC System)

      (for V Bus)
      17

      Combination Meter Assembly

      (for V Bus)

      		 18

      Multiplex Tilt and Telescopic ECU

      (w/ Power Tilt and Power Telescopic System)

      (for Sub Bus 1)
      19

      Outer Mirror Control ECU Assembly (for Driver Side)

      (w/ Seat Position Memory System)

      (for Sub Bus 1)

      		 20

      Position Control ECU and Switch Assembly LH

      (w/ Seat Position Memory System)

      (for Sub Bus 1)
      21

      Headlight Light Control ECU Sub-assembly LH

      (for Triple Beam Headlight)

      (for Sub Bus 1)

      		 22

      Position Control ECU and Switch Assembly RH

      (w/ Seat Position Memory System)

      (for Sub Bus 1)
      23

      Outer Mirror Control ECU Assembly (for Front Passenger Side)

      (w/ Seat Position Memory System)

      (for Sub Bus 1)

      		 24

      No. 1 CAN Junction Terminal

      (w/ Seat Position Memory System, Power Tilt and Power Telescopic System or Triple Beam Headlight)

      (for Sub Bus 1)
      25

      Rear Steering Control ECU

      (w/ VGRS System)

      (for Sub Bus 19)

      		 26

      Absorber Control ECU

      (w/ AVS System)

      (for Sub Bus 2 (w/o VGRS System) or Sub Bus 18 (w/ VGRS System) and Sub Bus19 (w/ VGRS System))
      27

      No. 3 CAN Junction Terminal

      (w/ VGRS System)

      (for Sub Bus 19)

      		 28

      Driving Support ECU Assembly

      (w/ Pre-crash Safety System)

      (for Sub Bus 2 (w/o VGRS System) or Sub Bus 18 (w/ VGRS System) and Sub Bus 13)
      29

      Clearance Warning ECU Assembly

      (w/ LEXUS Parking Assist-sensor System)

      (for Sub Bus 2 (w/o VGRS System) or Sub Bus 18 (w/ VGRS System))

      		 30

      Lane Departure Warning Camera

      (w/ Lane Departure Alert System)

      (for Sub Bus 2 (w/o VGRS System) or Sub Bus 18 (w/ VGRS System))
      31

      Blind Spot Monitor Sensor LH

      (w/ Blind Spot Monitor System)

      (for Sub Bus 2 (w/o VGRS System) or Sub Bus 18 (w/ VGRS System))

      		 32

      No. 2 CAN Junction Terminal

      (for Sub Bus 2 (w/o VGRS System) or Sub Bus 18 (w/ VGRS System))
      33

      Millimeter Wave Radar Sensor Assembly

      (w/ Pre-crash Safety System)

      (for Sub Bus 13)

      		 - -

      Tech Tips


      • 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 (w/o VGRS System) or sub bus 18 (w/ VGRS System).

      • The network gateway ECU functions as a gateway between the V bus and sub bus 19.

      • The driving support ECU assembly functions as a gateway between the sub bus 2 (w/o VGRS System) or sub bus 18 (w/ VGRS System) and sub bus 13.

      • Refer to the following bus wiring diagrams for details.

  9. V BUS (for RHD)


    1. w/o Network Gateway ECU

      A01VSTOE01
      A01VS32E02

      Tech Tips

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

      Click here

    2. w/ Network Gateway ECU

      A01VTC1E01
      A01VSB1E01

      Tech Tips

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

      Click here

  10. SUB BUS 1 (for RHD with Seat Position Memory System, Power Tilt and Power Telescopic System or Triple Beam Headlight)

    A01VS1AE12
    A01VT48E02

  11. SUB BUS 2 (for RHD with Network Gateway ECU without VGRS System)

    A01VRBPE03
    A01VTA3E01

  12. SUB BUS 13 (for RHD with Pre-crash Safety System)

    A01VSGHE13

  13. SUB BUS 18 (for RHD with VGRS System)

    A01VR9ME03
    A01VTA3E01

  14. SUB BUS 19 (for RHD with VGRS System)

    A01VTAWE02