Last Modified: 05-13-2024 6.11:8.1.0 Doc ID: RM100000001N22Y
Model Year Start: 2021 Model: Corolla Prod Date Range: [04/2020 - 09/2022]
Title: NETWORKING: CAN COMMUNICATION SYSTEM (for HV Model): SYSTEM DIAGRAM; 2021 - 2022 MY Corolla Corolla HV [04/2020 - 09/2022]

SYSTEM DIAGRAM

(a) The CAN communication system is composed of 5 buses.

*A

w/ Blind Spot Monitor System

*B

w/o Blind Spot Monitor System

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)

-

-

-

DLC3

DLC3

-

-

Bus 1

F-CAM

Forward Recognition Camera

Available

w/ Toyota Safety Sense

F-MR

Millimeter Wave Radar Sensor Assembly

Available

w/ Toyota Safety Sense

GRS

Swing Grille Actuator Assembly

-

-

BSM

Blind Spot Monitor Sensor LH

Available

w/ Blind Spot Monitor System

CAN J/C NO. 1

No. 1 CAN Junction Connector

-

-

CAN J/C NO. 7

No. 7 CAN Junction Connector

-

w/ Blind Spot Monitor System

ST

CAN Junction Terminal

-

w/ Blind Spot Monitor System

Bus 2

HV

Hybrid Vehicle Control ECU

Available

-

F-MGC

Inverter with Converter Assembly

Available

-

BRK

Brake Booster with Master Cylinder Assembly

Available

-

ENG

ECM

Available

-

VAS

Vehicle Approaching Speaker Controller

Available

w/ Vehicle Proximity Notification System

HVB

Battery ECU Assembly

Available

for Lithium-ion Battery

CAN J/C NO. 2

No. 2 CAN Junction Connector

-

-

Bus 3

AV

Radio and Display Receiver Assembly

Available

-

DCM

DCM (Telematics Transceiver)

Available

w/ Telematics Transceiver

CAN J/C NO. 6

No. 6 CAN Junction Connector

-

-

Bus 4

BRK

Brake Booster with Master Cylinder Assembly

Available

-

EPS

Power Steering ECU with Motor Assembly

Available

-

PKB

Brake Actuator Assembly

Available

-

ENG

ECM

Available

-

HV

Hybrid Vehicle Control ECU

Available

-

STR

Steering Sensor

-

-

SRS

Airbag Sensor Assembly

Available

-

OCS

Occupant Detection ECU

Available

-

CAN J/C NO. 4

No. 4 CAN Junction Connector

-

-

CAN J/C NO. 5

No. 5 CAN Junction Connector

-

-

Bus 5

A/C

Air Conditioning Amplifier Assembly

Available

-

SMT

Certification ECU (Smart Key ECU Assembly)

Available

Connected to LIN communication system

MB

Main Body ECU (Multiplex Network Body ECU)

Available

Connected to LIN communication system

MET

Combination Meter Assembly

Available

-

CAN J/C NO. 3

No. 3 CAN Junction Connector

-

-