CAN COMMUNICATION SYSTEM(for LHD) SYSTEM DIAGRAM

Overall CAN Bus Diagram

1. Control system CAN is composed of 4 buses.

   

   No.	ECU/Sensor Name
   1	ECM
   2	Network gateway ECU*15
   3	Main body ECU (multiplex network body ECU)
   4	Brake actuator assembly (skid control ECU)
   5	Parking brake ECU assembly
   6	Power steering ECU assembly
   7	Air conditioning amplifier assembly
   8	Stereo component equalizer assembly*1
   9	Certification ECU (smart key ECU assembly)
   10	Spiral with sensor cable sub-assembly (steering angle sensor)
   11	DLC3
   12	Airbag ECU assembly
   13	Radio receiver assembly
   14	Engine stop and start ECU*2
   15	4WD ECU assembly*3
   16	Combination meter assembly
   17	Multiplex tilt and telescopic ECU*4
   18	Outer mirror control ECU assembly RH*5
   19	Outer mirror control ECU assembly LH*5
   20	Front power seat switch LH*5
   21	Headlight light control ECU sub-assembly LH
   22	Multiplex network door ECU*6
   23	No. 2 CAN junction terminal
   24	Clearance warning ECU assembly*7
   25	Driving support ECU assembly*8
   26	Lane departure warning camera*9
   27	Blind spot monitor sensor LH*10
   28	Absorber control ECU*11
   29	Parking assist ECU*12
   30	Telematics transceiver*13
   31	Bus buffer ECU*14
   32	No. 1 CAN junction terminal
   33	Millimeter wave radar sensor assembly*8

   *1: w/ ASC System

   *2: w/ Stop and Start System

   *3: for AWD

   *4: for Power Tilt and Power Telescopic Steering Column

   *5: w/ Memory

   *6: w/ Power Back Door System

   *7: w/ LEXUS Parking Assist-sensor System

   *8: w/ Pre-crash Safety System

   *9: w/ Lane Departure Alert System

   *10: w/ Blind Spot Monitor System

   *11: w/ Adaptive Variable Suspension System

   *12: w/ Panoramic View Monitor System

   *13: w/ Telematics Transceiver

   *14: w/ Bus Buffer ECU

   *15: w/ Network gateway ECU

   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.

   • Refer to the following bus wiring diagrams for details.