CAN COMMUNICATION SYSTEM (for LHD) SYSTEM DIAGRAM


  1. SYSTEM DIAGRAM (w/o Dynamic Rear Steering System)


    1. Overall CAN Bus Diagram


      1. Control system CAN is composed of 5 buses.

        A01FT4VE01
        No. ECU/Sensor Name
        1 ECM
        2 Parking brake ECU assembly
        3 Main body ECU (multiplex network body ECU)
        4 Combination meter assembly
        5 DLC3
        6 Spiral with sensor cable sub-assembly (steering angle sensor)
        7 Yaw rate sensor
        8 Network gateway ECU
        9 Air conditioning amplifier assembly
        10 Multi-media module receiver assembly
        11 Power steering ECU assembly
        12 Center airbag sensor assembly
        13 Skid control ECU assembly
        14 Certification ECU (smart key ECU assembly)
        15 Power management control ECU
        16 Driving support ECU assembly*1
        17 Clearance warning ECU assembly*2
        18 Headlight swivel ECU assembly (AFS ECU)
        19 Absorber control ECU*3
        20 Blind spot monitor sensor LH*4
        21 Blind spot monitor sensor RH*4
        22 Seat belt control ECU*5
        23 No. 8 junction connector
        24 Luggage closer motor assembly*6
        25 Front multiplex network door ECU LH
        26 Front multiplex network door ECU RH
        27 Multiplex tilt and telescopic ECU
        28

        • Position control ECU assembly LH*7

        • Power seat switch assembly*8
        29 Position control ECU assembly RH*9
        30 No. 10 junction connector
        31 Millimeter wave radar sensor assembly*1
        32 Lane recognition camera sensor assembly*10
        33 Driver monitor ECU assembly*11
        34 No. 1 night view ECU*12
        35 No. 11 junction connector

        • *1: w/ Dynamic Radar Cruise Control System

        • *2: w/ LEXUS Parking Assist-sensor System

        • *3: w/ Adaptive Variable Suspension System

        • *4: w/ Blind Spot Monitor System

        • *5: w/ Pre-crash Safety System

        • *6: w/ Power Trunk Lid System

        • *7: except Standard Seat Type

        • *8: for Standard Seat Type

        • *9: for Luxury Seat Type

        • *10: w/ Lane-keeping Assist System

        • *11: w/ Driver Monitor Camera

        • *12: w/ Night View System

        Tech Tips


        • The network gateway ECU functions as a gateway between the V bus and sub bus 2.

        • The main body ECU (multiplex network body ECU) functions as a gateway between the V bus and sub bus 1.

        • The driving support ECU assembly functions as a gateway between the sub bus 2 and sub bus 13.

        • The ECM functions as a gateway between the V bus and sub bus 15.

        • Refer to the following bus wiring diagrams for details.

    2. V Bus

      A01FQJGE01
      A01FVCRE03

      Tech Tips

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

    3. Sub Bus 2

      A01FVJ9E03
      A01FS8CE03

    4. Sub Bus 1

      A01FV77E03

      Tech Tips

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

    5. Sub Bus 13 (w/ Dynamic Radar Cruise Control System)

      A01FT7OE06

    6. Sub Bus 15

      A01FQQLE01

      Tech Tips

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

  2. SYSTEM DIAGRAM (w/ Dynamic Rear Steering System)


    1. Overall CAN Bus Diagram


      1. Control system CAN is composed of 7 buses.

        A01FU1FE01
        No. ECU/Sensor Name
        1 ECM
        2 Skid control ECU assembly
        3 Main body ECU (multiplex network body ECU)
        4 Power steering ECU assembly
        5 Parking brake ECU assembly
        6 Front steering control ECU
        7 Certification ECU (smart key ECU assembly)
        8 Network gateway ECU
        9 Yaw rate sensor
        10 Spiral with sensor cable sub-assembly (steering angle sensor)
        11 Center airbag sensor assembly
        12 Air conditioning amplifier assembly
        13 Combination meter assembly
        14 DLC3
        15 Multi-media module receiver assembly
        16 Power management control ECU
        17 Absorber control ECU*1
        18 Clearance warning ECU assembly*2
        19 Driving support ECU assembly*3
        20 Headlight swivel ECU assembly (AFS ECU)
        21 Blind spot monitor sensor LH*4
        22 Blind spot monitor sensor RH*4
        23 Seat belt control ECU*5
        24 No. 8 junction connector
        25 Luggage closer motor assembly*6
        26 Front multiplex network door ECU LH
        27 Front multiplex network door ECU RH
        28 Multiplex tilt and telescopic ECU
        29 Position control ECU assembly LH
        30 No. 10 junction connector
        31 Rear steering control ECU
        32 No. 9 junction connector
        33 Millimeter wave radar sensor assembly*3
        34 Lane recognition camera sensor assembly*7
        35 Driver monitor ECU assembly*8
        36 No. 1 night view ECU*9
        37 No. 11 junction connector

        • *1: w/ Adaptive Variable Suspension System

        • *2: w/ LEXUS Parking Assist-sensor System

        • *3: w/ Dynamic Radar Cruise Control System

        • *4: w/ Blind Spot Monitor System

        • *5: w/ Pre-crash Safety System

        • *6: w/ Power Trunk Lid System

        • *7: w/ Lane-keeping Assist System

        • *8: w/ Driver Monitor Camera

        • *9: w/ Night View System

        Tech Tips


        • The network gateway ECU functions as a gateway between the V bus and sub bus 18.

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

        • The main body ECU (multiplex network body ECU) functions as a gateway between the V bus and sub bus 1.

        • The driving support ECU assembly functions as a gateway between the sub bus 13 and sub bus 19.

        • The ECM functions as a gateway between the V bus and sub bus 15.

        • Refer to the following bus wiring diagrams for details.

    2. V Bus

      A01FR9PE01
      A01FVO2E01

    3. Sub Bus 18

      A01FS0LE01
      A01FVCIE01

    4. Sub Bus 19

      A01FT6TE01

    5. Sub Bus 1

      A01FR3UE02

    6. Sub Bus 13 (w/ Dynamic Radar Cruise Control System)

      A01FT7OE07

    7. Sub Bus 15

      A01FQC2E02

    8. Local Bus

      A01FTMPE01