CAN COMMUNICATION SYSTEM (for LHD) SYSTEM DIAGRAM

Overall CAN Bus Diagram

1. Control system CAN is composed of 6 buses.

   

   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 RH*4
   21	Blind spot monitor sensor LH*4
   22	Seat belt control ECU*5
   23	Telematics transceiver*13
   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*7 Power seat switch assembly*8
   30	Position control ECU assembly RH*9
   31	No. 10 junction connector
   32	Millimeter wave radar sensor assembly*1
   33	Lane recognition camera sensor assembly*10
   34	Driver monitor ECU assembly*11
   35	No. 1 night view ECU*12
   36	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

   • *13: w/ Telematics Transceiver

   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.

Overall CAN Bus Diagram

1. Control system CAN is composed of 8 buses.

   

   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 RH*4
   22	Blind spot monitor sensor LH*4
   23	Seat belt control ECU*5
   24	Telematics transceiver*10
   25	No. 8 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. 10 junction connector
   32	Rear steering control ECU
   33	No. 9 junction connector
   34	Millimeter wave radar sensor assembly*3
   35	Lane recognition camera sensor assembly*7
   36	Driver monitor ECU assembly*8
   37	No. 1 night view ECU*9
   38	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

   • *10: w/ Telematics Transceiver

   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.