Toyota Tundra Service Manual: System Diagram

SYSTEM DIAGRAM

1. 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 Monitoring Direction

-

-

Connected to

Code

ECU/Sensor Name

CAN DTC Storage

Note

-

CGW

Central Gateway ECU (Network Gateway ECU)

-

-

V Bus

DLC3

DLC3

-

-

Bus 1

F-CAM

Forward Recognition Camera

Available

w/ Pre-collision System

F-MR

Millimeter Wave Radar Sensor Assembly

Available

w/ Pre-collision System

BSM

Blind Spot Monitor Sensor RH

Available

w/ Blind Spot Monitor System

CAN J/C NO. 1

No. 1 CAN Junction Connector

-

-

CAN J/C NO. 2

No. 2 CAN Junction Connector

-

-

CAN J/C NO. 7

No. 7 CAN Junction Connector

-

-

ST NO. 1

No. 1 CAN Junction Terminal

-

-

Bus 2

ENG

ECM

Available

-

Bus 3

AV

Radio and Display Receiver Assembly

Available

w/ Audio and Visual System

Navigation Receiver Assembly

Available

w/ Navigation System

CAN J/C NO. 5

No. 5 CAN Junction Connector

-

-

Bus 4

TBC

Brake Control with Bracket Relay

Available

w/ Trailer Brake Control System

AWD

4 Wheel Drive Control ECU (4WD Control ECU)

Available

for 4WD

BRK

Brake Actuator Assembly (Skid Control ECU)

Available

-

STR

Spiral with Sensor Cable Sub-assembly (Steering Angle Sensor)

-

-

TPMS

Tire Pressure Warning ECU and Receiver

Available

-

SRS

Airbag Sensor Assembly

-

-

CAN J/C NO. 3

No. 3 CAN Junction Connector

-

-

CAN J/C NO. 4

No. 4 CAN Junction Connector

-

-

CAN J/C NO. 6

No. 6 CAN Junction Connector

-

-

Bus 5

MB

Main Body ECU (Multiplex Network Body ECU)

Available

The main body ECU (multiplex network body ECU) functions as a gateway between the bus 5 and sub bus 1

A/C

Air Conditioning Amplifier Assembly

Available

-

MET

Combination Meter Assembly

Available

-

CAN J/C NO. 5

No. 5 CAN Junction Connector

-

-

Sub Bus 1

MB

Main Body ECU (Multiplex Network Body ECU)

Available

The main body ECU (multiplex network body ECU) functions as a gateway between the bus 5 and sub bus 1

DST

Front Power Seat Switch LH (Power Seat Control ECU)

-

w/ Seat Memory

DFL

Outer Mirror Control ECU Assembly LH

Available

w/ Seat Memory

DFR

Outer Mirror Control ECU Assembly RH

Available

w/ Seat Memory

T&T

Multiplex Tilt and Telescopic ECU

Available

w/ Seat Memory

CAN J/C NO. 3

No. 3 CAN Junction Connector

-

-

CAN J/C NO. 4

No. 4 CAN Junction Connector

-

-

CAN J/C NO. 8

No. 8 CAN Junction Connector

-

-

ST NO. 2

No. 2 CAN Junction Terminal

-

-

    System Description

    Terminals Of Ecu

    See More:

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