Toyota Corolla Cross Owners & Service Manuals

Toyota Corolla Cross: System Diagram

SYSTEM DIAGRAM

OVERALL CAN BUS DIAGRAM

*A

w/ Parking Assist Monitor System

*B

w/o Parking Assist Monitor System

CAN Main Bus Line

Terminating Resistor

CAN Branch Line

*

Gateway Function Equipped ECU

Bus Monitoring Direction

-

-

*A

w/ AFS

*B

w/o AFS

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

CS

Clearance Warning ECU Assembly

Clearance Warning (Intuitive Parking Assist)

w/ Intuitive Parking Assist System

F-CAM

Forward Recognition Camera

Front Camera Module

Installed on all vehicles

F-MR

Millimeter Wave Radar Sensor Assembly

Front Radar

Installed on all vehicles

BSM

Blind Spot Monitor Sensor LH (B)

Blind Spot Monitor "B"

w/ Blind Spot Monitor System

R-CA

Rear Television Camera Assembly

Parking Assist Monitor System / Rear Camera

w/ Parking Assist Monitor System

CAN Global J/C NO. 14

No. 14 Global CAN Junction Connector

-

Installed on all vehicles

CAN Global J/C NO. 17

No. 17 Global CAN Junction Connector

-

Installed on all vehicles

CAN Global J/C NO. 18

No. 18 Global CAN Junction Connector

-

w/ Parking Assist Monitor System

ST NO. 2

No. 2 CAN Junction Terminal

-

Installed on all vehicles

Bus 2

TCM

TCM

TCM

Installed on all vehicles

S&S

Engine Stop and Start ECU

Stop and Go/Start

Installed on all vehicles

ENG

ECM

ECM (Engine)

Installed on all vehicles

CAN Global J/C NO. 21

No. 21 Global CAN Junction Connector

-

Installed on all vehicles

Bus 3

AV

Radio and Display Receiver Assembly

Display and Navigation (AVN)

Installed on all vehicles

DCM

DCM (Telematics Transceiver)

DCM

w/ Telematics Transceiver

MET

Combination Meter Assembly

Combination Meter

Installed on all vehicles

CAN Global J/C NO. 15

No. 15 Global CAN Junction Connector

-

Installed on all vehicles

Bus 4

BRK

Brake Actuator Assembly

Skid Control (ABS/VSC/TRAC)

Installed on all vehicles

SRS

Airbag ECU Assembly

Airbag

Installed on all vehicles

STR

Steering Sensor

Spiral Cable (Steering Angle Sensor)

Installed on all vehicles

EPS

Power Steering ECU Assembly

Power Steering (EPS)

Installed on all vehicles

CAN Global J/C NO. 9

No. 9 Global CAN Junction Connector

-

Installed on all vehicles

CAN Global J/C NO. 11

No. 11 Global CAN Junction Connector

-

Installed on all vehicles

Bus 5

LITM

Headlight ECU Sub-assembly LH

Headlight Control

w/ AFS

LITS

Headlight ECU Sub-assembly RH

Headlight Control (Sub)

w/ AFS

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

BKD

Multiplex Network Door ECU

Back Door

w/ Power Back Door

MB

Main Body ECU (Multiplex Network Body ECU)

Main Body

Installed on all vehicles

CAN Global J/C NO. 13

No. 13 Global CAN Junction Connector

-

Installed on all vehicles

CAN Global J/C NO. 16

No. 16 Global CAN Junction Connector

-

Installed on all vehicles

CAN Global J/C NO. 20

No. 20 Global CAN Junction Connector

-

w/ AFS

Bus 6

TPMS

Tire Pressure Warning ECU and Receiver

Tire Pressure

Installed on all vehicles

FWD

4WD ECU Assembly

Four Wheel Drive Control

for AWD

CAN Global J/C NO. 22

No. 22 Global CAN Junction Connector

-

Installed on all vehicles

Bus 7

YGW

Option Connector (Bus Buffer ECU)

Accessory Gateway

Installed on all vehicles

Chassis Local Bus

BRK

Brake Actuator Assembly

-

Installed on all vehicles

S&S

Engine Stop and Start ECU

-

Installed on all vehicles

ENG

ECM

-

Installed on all vehicles

CAN Global J/C NO. 9

No. 9 Global CAN Junction Connector

-

Installed on all vehicles

    READ NEXT:

     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

     How To Proceed With Troubleshooting

    CAUTION / NOTICE / HINT PRECAUTIONS WHEN TROUBLESHOOTING NOTICE: Because the order of diagnosis is important to allow correct diagnosis, make sure to begin troubleshooting using How to Procee

     Utility

    UTILITY INITIALIZE THE CONNECTION INFORMATION OF A GATEWAY FUNCTION EQUIPPED ECU (BUS MONITOR ECU) (a) Initialize the ECU. Body Electrical > Central Gateway > Utility Tester Dis

    SEE MORE:

     CAN Register Fixing Internal Electronic Failure (U100049)

    DESCRIPTION The headlight ECU sub-assembly LH or headlight ECU sub-assembly RH stores this DTC if it detects an internal malfunction related to the CAN communication system. DTC No. Detection Item DTC Detection Condition Trouble Area U100049 CAN Register Fixing Internal Electro

     Driver Side Door Entry Unlock Function does not Operate

    DESCRIPTION If the entry unlock function does not operate for the driver door only, but the entry lock function operates, the request code is being transmitted properly from the driver door. In this case, there may be a problem related to the unlock sensor (connection between the certification ECU (

    © 2020-2024 Copyright www.tcorollacross.com