Toyota Tacoma manuals

Toyota Tacoma 2015-2018 Service Manual: System Diagram

SYSTEM DIAGRAM

1. OVERALL CAN BUS DIAGRAM

(a) The CAN communication system is composed of 4 buses.

CAN Main Bus Line

Terminating Resistor

CAN Branch Line

*

Gateway Function Equipped ECU

Bus Monitoring Direction

-

-

Bus

Code

ECU/Sensor Name

CAN DTC Storage

Note

-

CGW

Central Gateway ECU (Network Gateway ECU)

-

-

V Bus

DLC3

DLC3

-

-

Bus 2

ENG

ECM

Available

-

MET

Combination Meter Assembly

Available

-

A/C

Air Conditioning Amplifier Assembly

Available

-

SMT

Certification ECU (Smart Key ECU Assembly)

Available

  • w/ Smart Key System
  • The certification ECU (smart key ECU assembly) is also connected to the LIN communication system.

MB

Main Body ECU (Multiplex Network Body ECU)

Available

The main body ECU (multiplex network body ECU) is also connected to the LIN communication system.

AWD

4 Wheel Drive Control ECU

Available

for 4WD

BRK

Brake Booster Assembly (Skid Control ECU)

Available

for Hydraulic Brake Booster

Brake Actuator Assembly (Skid Control ECU)

Available

for Vacuum Brake Booster

TPMS

Door Control and Tire Pressure Monitoring System Receiver Assembly

Available

w/ Tire Pressure Warning System and Tire Inflation Pressure Display Function

SRS

Airbag Sensor Assembly

-

-

STR

Spiral Cable with Sensor Sub-assembly

-

-

CAN J/C NO. 1

No. 1 CAN Junction Connector

-

-

CAN J/C NO. 2

No. 2 CAN Junction Connector

-

-

Bus 3

AV

Navigation Receiver Assembly

Available

for Navigation Receiver Type

Radio and Display Receiver Assembly

Available

for Radio and Display Type

CAN J/C NO. 6

No. 6 CAN Junction Connector

-

-

Bus 5

CS

Clearance Warning ECU Assembly

Available

w/ Intuitive Parking Assist System

F-CAM

Forward Recognition Camera

Available

w/ Toyota Safety Sense P

F-MR

Millimeter Wave Radar Sensor Assembly

-

w/ Toyota Safety Sense P

BSM

Blind Spot Monitor Sensor LH

Available

w/ Blind Spot Monitor System

CAN J/C NO. 4

No. 4 CAN Junction Connector

-

-

CAN J/C NO. 5

No. 5 CAN Junction Connector

-

-

CAN J/C NO. 6

No. 6 CAN Junction Connector

-

-

Precaution
PRECAUTION 1. EXPRESSIONS OF IGNITION SWITCH HINT: The type of ignition switch used on this model differs according to the specifications of the vehicle. The expressions listed in the table below ...

Problem Symptoms Table
PROBLEM SYMPTOMS TABLE HINT: Use the table below to help determine the cause of problem symptoms. If multiple suspected areas are listed, the potential causes of the symptoms are lis ...

Other materials:

Lost Communication with ECM / PCM "A" (U0100,U0125,U0126,U0129)
DESCRIPTION These DTCs are stored when a communication malfunction occurs between ECUs that perform pre-collision system control. DTC No. Detection Item DTC Detection Condition Trouble Area U0100 Lost Communication with ECM ...

Engine Coolant Temperature Sensor
Components COMPONENTS ILLUSTRATION Inspection INSPECTION PROCEDURE 1. INSPECT ENGINE COOLANT TEMPERATURE SENSOR (a) Partially immerse the engine coolant temperature sensor in water and warm up the water. (b) Measure the resistance according to the value(s) in the table bel ...

ABS Warning Light Remains ON
DESCRIPTION The skid control ECU (brake actuator assembly) is connected to the combination meter assembly via CAN communication. If any of the following is detected, the ABS warning light remains on: The skid control ECU (brake actuator assembly) connectors are disconnected from the ...

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