Lexus RX (RX 350L, RX450h) 2016-2025 Repair Manual: System Diagram

Lexus RX (RX 350L, RX450h) 2016-2025 Repair Manual / Power Source & Network / Networking / Can Communication System / System Diagram

SYSTEM DIAGRAM

(a) The CAN communication system is composed of 7 buses.

CAN Main Bus Line

Terminating Resistor

CAN Branch Line

*

Gateway Function Equipped ECU

Bus Monitored Direction

-

-

CAN Main Bus Line

Terminating Resistor

CAN Branch Line

*

Gateway Function Equipped ECU

Bus

Code

ECU/Sensor Name

CAN DTC Storage

Note

-

CGW

Network Gateway ECU

-

-

V Bus

DLC3

DLC3

-

-

Bus 1

MAV

Parking Assist ECU

Available

w/ Panoramic View Monitor System

CSR

Clearance Warning ECU Assembly

Available

w/ Intuitive Parking Assist System

FCM

Forward Recognition Camera

Available

-

FRD

Millimeter Wave Radar Sensor Assembly

Available

-

CAA

Rear Television Camera Assembly

-

w/ Panoramic View Monitor System

Available

w/ Parking Assist Monitor System

BSR

Blind Spot Monitor Sensor LH

Available

w/ Blind Spot Monitor System

CAN J/C No.3

No. 3 CAN Junction Connector

-

-

CAN J/C No.10

No. 10 CAN Junction Connector

-

-

Bus 2

ENG

ECM

Available

-

Bus 3

AVN

Radio Receiver Assembly

Available

-

DCM

DCM (Telematics Transceiver)

Available

w/ Manual (SOS) Switch

CAN J/C No.6

No. 6 CAN Junction Connector

-

-

Bus 4

VSC

Skid Control ECU (Brake Actuator Assembly)

Available

-

FWD

4WD ECU ASSEMBLY

Available

for AWD

ODS

Occupant Detection ECU

-

-

EPS

Power Steering ECU Assembly

Available

-

STR

Steering Sensor

-

-

YGS

Yaw Rate Sensor Assembly

-

w/ TFT Meter Type Combination Meter Assembly

ABG

Airbag Sensor Assembly

Available

-

TPM

Tire Pressure Warning ECU and Receiver

Available

-

SCS

Absorber Control ECU

Available

w/ AVS

CAN J/C No.1

No. 1 CAN Junction Connector

-

-

CAN J/C No.7

No. 7 CAN Junction Connector

-

-

CAN J/C No.8

No. 8 CAN Junction Connector

-

-

CAN J/C No.9

No. 9 CAN Junction Connector

-

-

CAN J/C No.12

No. 12 CAN Junction Connector

-

-

Bus 5

ACN

Air Conditioning Amplifier Assembly

Available

-

MET

Combination Meter Assembly

Available

-

IDT

Certification ECU (Smart Key ECU Assembly)

Available

-

BDB

Main Body ECU (Multiplex Network Body ECU)

Available
  • The main body ECU (multiplex network body ECU) acts as a gateway between the bus 5 and sub bus 1.
  • The main body ECU (multiplex network body ECU) is also connected to the LIN communication system.

AFS

Headlight ECU Sub-assembly LH

Available

w/ Automatic Headlight Beam Level Control System

HUD

Combination Meter Mirror ECU (Headup Display)

Available

w/ Headup Display System

CAN J/C No.5

No. 5 CAN Junction Connector

-

-

Sub Bus 1

BDB

Main Body ECU (Multiplex Network Body ECU)

Available
  • The main body ECU (multiplex network body ECU) acts as a gateway between the bus 5 and sub bus 1.
  • The main body ECU (multiplex network body ECU) is also connected to the LIN communication system.

BKD

Multiplex Network Door ECU

Available

-

DFL

Outer Mirror Control ECU Assembly (for Driver Side)

Available

-

TAT

Multiplex Tilt and Telescopic ECU

Available

-

DST

Position Control ECU and Switch Assembly LH

-

w/ Seat Position Memory System

DFR

Outer Mirror Control ECU Assembly (for Front Passenger Side)

Available

-

ST1

No. 1 CAN Junction Terminal

-

-

CAN J/C No.11

No. 11 CAN Junction Connector

-

-

CAN J/C No.8

No. 8 CAN Junction Connector

-

-
    Precaution
    PRECAUTION NOTICE FOR INITIALIZATION NOTICE: When disconnecting the cable from the negative (-) battery terminal, initialize the following systems after the cable is reconnected. System See Proce ...

    System Description
    SYSTEM DESCRIPTION BRIEF DESCRIPTION (a) The Controller Area Network (CAN) is a serial data communication system for real time application. It is a vehicle multiplex communication system which has a h ...

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    Lexus RX (RX 350L, RX450h) 2016-{YEAR} Owners Manual

    Lexus RX (RX 350L, RX450h) 2016-{YEAR} Repair Manual

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