CAN COMMUNICATION SYSTEM (for LHD) SYSTEM DIAGRAM

Overall CAN Bus Diagram

1. Control system CAN is composed of 5 buses.

   

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

   
   

   • *1: w/ Network Gateway ECU

   • *2: w/ Dynamic Radar Cruise Control System

   • *3: w/ Adaptive Variable Suspension System

   • *4: for AWD

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

   • *6: w/ Blind Spot Monitor System

   • *7: w/ Pre-crash Safety System

   • *8: w/ Power Trunk Lid System

   • *9: except Standard Seat Type

   • *10: for Standard Seat Type

   • *11: for Luxury Seat Type

   • *12: w/ Lane-keeping Assist System

   • *13: w/ Driver Monitor Camera

   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 certification ECU (smart key ECU assembly) functions as a gateway between the V bus and sub bus 15.

   • Refer to the following bus wiring diagrams for details.

Overall CAN Bus Diagram

1. Control system CAN is composed of 7 buses.

   

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

   
   

   • *1: w/ Dynamic Radar Cruise Control System

   • *2: w/ Adaptive Variable Suspension System

   • *3: w/ LEXUS Parking Assist-sensor 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

   Tech Tips

   
   

   • The network gateway ECU functions as a gateway between the V bus and sub bus 18 or 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 18 or sub bus 13 and sub bus 19.

   • The certification ECU (smart key ECU assembly) functions as a gateway between the V bus and sub bus 15.

   • Refer to the following bus wiring diagrams for details.