Last Modified: 05-13-2024 6.11:8.1.0 Doc ID: RM10000000257II
Model Year Start: 2023 Model: Corolla Prod Date Range: [09/2022 -           ]
Title: NETWORKING: CAN COMMUNICATION SYSTEM (for HV Model): SYSTEM DIAGRAM; 2023 - 2025 MY Corolla Corolla HV [09/2022 -        ]

SYSTEM DIAGRAM

OVERALL CAN BUS DIAGRAM

*A

w/ Front Camera System

*B

w/o Front Camera System

CAN Main Bus Line

Terminating Resistor

CAN Branch Line

*

Gateway Function Equipped ECU

Bus Monitoring Direction

-

-

Connected to

Code

ECU/Sensor Name

GTS Display

Applicability

-

CGW

Central Gateway ECU (Network Gateway ECU)

-

Installed on all vehicles

-

DLC3

DLC3

-

Installed on all vehicles

Bus 1

F-CAM

Forward Recognition Camera

Front Camera Module

w/ Front Camera System

F-MR

Millimeter Wave Radar Sensor Assembly

Front Radar

w/ Front Camera System

BSM

Blind Spot Monitor Sensor LH (B)

Blind Spot Monitor "B"

w/ Blind Spot Monitor System

CAN J/C NO. 18

No. 18 CAN Junction Connector

-

Installed on all vehicles

CAN J/C NO. 19

No. 19 CAN Junction Connector

-

Installed on all vehicles

ST

CAN Junction Terminal

-

Installed on all vehicles

Bus 2

HVB

Battery ECU Assembly

HV Battery

Installed on all vehicles

HV

Hybrid Vehicle Control ECU

Hybrid Vehicle Control

Installed on all vehicles

F-MGC

Inverter with Converter Assembly

Motor Generator

Installed on all vehicles

ENG

ECM

ECM (Engine)

Installed on all vehicles

CAN J/C NO. 14

No. 14 CAN Junction Connector

-

Installed on all vehicles

Bus 3

DCM

DCM (Telematics Transceiver)

DCM

w/ Telematics Transceiver

AV

Radio and Display Receiver Assembly

Display and Navigation (AVN)

Installed on all vehicles

MET

Combination Meter Assembly

Combination Meter

Installed on all vehicles

CAN J/C NO. 15

No. 15 CAN Junction Connector

-

Installed on all vehicles

Bus 4

SRS

Airbag Sensor Assembly

Airbag

Installed on all vehicles

STR

Steering Sensor

Spiral cable (Steering Angle Sensor)

Installed on all vehicles

BRK1

Electric Brake Booster (Brake Booster with Master Cylinder Assembly)

Brake Booster

Installed on all vehicles

BRK2

Skid Control ECU (Brake Actuator Assembly)

Skid Control (ABS/VSC/TRAC)

Installed on all vehicles

EPS

Power Steering ECU with Motor Assembly

Power Steering (EPS)

Installed on all vehicles

CAN J/C NO. 10

No. 10 CAN Junction Connector

-

Installed on all vehicles

CAN J/C NO. 13

No. 13 CAN Junction Connector

-

Installed on all vehicles

Bus 5

A/C

Air Conditioning Amplifier Assembly

Air Conditioning Amplifier

Installed on all vehicles

SMT

Certification ECU (Smart Key ECU Assembly)

  • Certification (Smart)
  • Power Management

w/ Smart Key System

MB

Main Body ECU (Multiplex Network Body ECU)

Main Body

Installed on all vehicles

CAN J/C NO. 12

No. 12 CAN Junction Connector

-

Installed on all vehicles

CAN J/C NO. 17

No. 17 CAN Junction Connector

-

Installed on all vehicles

Bus 6

VAS

Vehicle Approaching Speaker Controller

Acoustic Vehicle Alerting System

w/ Acoustic Vehicle Alerting System

TPMS

Tire Pressure Warning ECU and Receiver

Tire Pressure

w/ Tire Pressure Warning System

CAN J/C NO. 16

No. 16 CAN Junction Connector

-

Installed on all vehicles

Bus 7

YGW

Option Connector (Bus Buffer ECU)

Accessory Gateway

w/ CAN Compatible Optional Devices

Battery Local Bus

HVB

Battery ECU Assembly

-

Installed on all vehicles

DC1

Inverter with Converter Assembly

-

Installed on all vehicles

HV

Hybrid Vehicle Control ECU

-

Installed on all vehicles

CAN J/C NO. 11

No. 11 CAN Junction Connector

-

Installed on all vehicles

Powertrain Local Bus

BRK2

Skid Control ECU (Brake Actuator Assembly)

-

Installed on all vehicles

ENG

ECM

-

Installed on all vehicles

F-MGC

Inverter with Converter Assembly

-

Installed on all vehicles

BRK1

Electric Brake Booster (Brake Booster with Master Cylinder Assembly)

-

Installed on all vehicles

HV

Hybrid Vehicle Control ECU

-

Installed on all vehicles

J/C NO. 33

No. 33 Junction Connector

-

Installed on all vehicles

J/C NO. 34

No. 34 Junction Connector

-

Installed on all vehicles