CAN COMMUNICATION SYSTEM SYSTEM DIAGRAM
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OVERALL CAN BUS DIAGRAM (LHD)
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The CAN communication system is composed of 6 buses.
CAN Main Bus Line 
Terminating Resistor 
CAN Branch Line * Gateway Function Equipped ECU 
Bus Monitoring Direction - - Connected to Code ECU/Sensor Name CAN DTC Storage Note - CGW Central Gateway ECU (Network Gateway ECU) - - V Bus DLC3 DLC3 - - Bus 2 ENG ECM Available - MET Combination Meter Assembly Available - EPS Power Steering ECU Assembly Available - A/C Air Conditioning Amplifier Assembly Available - SMT Certification ECU (Smart Key ECU Assembly) Available - MB Main Body ECU (Multiplex Network Body ECU) Available
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Gateway between the bus 2 and sub bus 1.
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Connected to the LIN communication system.
ASC Stereo Component Equalizer Assembly Available w/ ASC System BRK Skid Control ECU Assembly Available - YGS Yaw Rate Sensor - - SRS Airbag ECU assembly Available - STR Steering Sensor - - HV Hybrid Vehicle Control ECU Assembly Available - LIT Headlight Leveling ECU Assembly Available for Single Beam Headlight CAN J/C NO. 1 No. 1 CAN Junction Connector - - CAN J/C NO. 2 No. 2 CAN Junction Connector - - Bus 3 AV Radio Receiver Assembly Available - CAN J/C NO. 5 No. 5 CAN Junction Connector - - Bus 5 HV Hybrid Vehicle Control ECU Assembly Available - CS Clearance Warning ECU Assembly Available w/ LEXUS Parking Assist-sensor System SUS Absorber Control ECU Available w/ AVS System DS Driving Support ECU Assembly Available w/ Lexus Safety System + F-CAM Forward Recognition Camera Available w/ Lexus Safety System + F-MR Millimeter Wave Radar Sensor Assembly - w/ Lexus Safety System + BSM Blind Spot Monitor Sensor LH Available w/ Blind Spot Monitor System R-CA Rear Television Camera Assembly Available w/ Parking Assist Monitor System CAN J/C NO. 11 No. 11 CAN Junction Connector - - CAN J/C NO. 15 No. 15 CAN Junction Connector - - CAN J/C NO. 17 No. 17 CAN Junction Connector - - Sub Bus 1 MB Main Body ECU (Multiplex Network Body ECU) Available
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Gateway between the bus 2 and sub bus 1.
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Connected to the LIN communication system.
MIR-L Outer Mirror Control ECU Assembly (for Driver Side) Available w/ Seat Position Memory System MIR-R Outer Mirror Control ECU Assembly (for Front Passenger Side) Available w/ Seat Position Memory System T&T Multiplex Tilt and Telescopic ECU Available w/ Power Tilt and Power Telescopic System DST Position Control ECU and Switch Assembly LH - - PST Position Control ECU and Switch Assembly RH - - LITM Headlight ECU Sub-assembly Available for Triple Beam Headlight ST No. 1 CAN Junction Terminal - - CAN J/C NO. 5 No. 5 CAN Junction Connector - - CAN J/C NO. 14 No. 14 CAN Junction Connector - - Sub Bus 15 ENG ECM Available - BRK Skid Control ECU Assembly Available - HV Hybrid Vehicle Control ECU Assembly Available - CAN J/C NO. 13 No. 13 CAN Junction Connector - - -
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OVERALL CAN BUS DIAGRAM (RHD)
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The CAN communication system is composed of 6 buses.
CAN Main Bus Line Terminating Resistor CAN Branch Line * Gateway Function Equipped ECU Bus Monitoring Direction - - Connected to Code ECU/Sensor Name CAN DTC Storage Note - CGW Central Gateway ECU (Network Gateway ECU) - - V Bus DLC3 DLC3 - - Bus 2 ENG ECM Available - MET Combination Meter Assembly Available - EPS Power Steering ECU Assembly Available - A/C Air Conditioning Amplifier Assembly Available - SMT Certification ECU (Smart Key ECU Assembly) Available - MB Main Body ECU (Multiplex Network Body ECU) Available
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Gateway between the bus 2 and sub bus 1.
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Connected to the LIN communication system.
ASC Stereo Component Equalizer Assembly Available w/ ASC System BRK Skid Control ECU Assembly Available - YGS Yaw Rate Sensor - - SRS Airbag ECU Assembly Available - STR Steering Sensor - - HV Hybrid Vehicle Control ECU Assembly Available - LIT Headlight Leveling ECU Assembly Available for Single Beam Headlight CAN J/C NO. 1 No. 1 CAN Junction Connector - - CAN J/C NO. 2 No. 2 CAN Junction Connector - - Bus 3 AV Radio Receiver Assembly Available - CAN J/C NO. 6 No. 6 CAN Junction Connector - - Bus 5 HV Hybrid Vehicle Control ECU Assembly Available - CS Clearance Warning ECU Assembly Available w/ LEXUS Parking Assist-sensor System SUS Absorber Control ECU Available w/ AVS System DS Driving Support ECU Assembly Available w/ Lexus Safety System + F-CAM Forward Recognition Camera Available w/ Lexus Safety System + F-MR Millimeter Wave Radar Sensor Assembly - w/ Lexus Safety System + BSM Blind Spot Monitor Sensor LH Available w/ Blind Spot Monitor System R-CA Rear Television Camera Assembly Available w/ Parking Assist Monitor System CAN J/C NO. 12 No. 12 CAN Junction Connector - - CAN J/C NO. 15 No. 15 CAN Junction Connector - - CAN J/C NO. 16 No. 16 CAN Junction Connector - - Sub Bus 1 MB Main Body ECU (Multiplex Network Body ECU) Available
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Gateway between the bus 2 and sub bus 1.
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Connected to the LIN communication system.
MIR-L Outer Mirror Control ECU Assembly (for Front Passenger Side) Available w/ Seat Position Memory System MIR-R Outer Mirror Control ECU Assembly (for Driver Side) Available w/ Seat Position Memory System T&T Multiplex Tilt and Telescopic ECU Available w/ Power Tilt and Power Telescopic System DST Position Control ECU and Switch Assembly RH - - PST Position Control ECU and Switch Assembly LH - - LITM Headlight ECU Sub-assembly Available for Triple Beam Headlight ST No. 1 CAN Junction Terminal - - CAN J/C NO. 6 No. 6 CAN Junction Connector - - CAN J/C NO. 14 No. 14 CAN Junction Connector - - Sub Bus 15 ENG ECM Available - BRK Skid Control ECU Assembly Available - HV Hybrid Vehicle Control ECU Assembly Available - CAN J/C NO. 14 No. 14 CAN Junction Connector - - -
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