Toyota Tacoma manuals

Toyota Tacoma (2015-2018) Service Manual: System Diagram

SYSTEM DIAGRAM

This is a detailed diagram related to the main body ECU (multiplex network body

This is a detailed diagram related to the main body ECU (multiplex network body ECU).

Component

Function

Front door outside handle assembly LH

Receives request signals from the certification ECU (smart key ECU assembly) via the built-in electrical key antenna (front door) and forms the vehicle exterior detection area.

Uses the built-in touch sensor (lock sensor/unlock sensor) to detect the operation of the front door outside handle assembly and sends signals to the certification ECU (smart key ECU assembly).

No. 1 indoor electrical key antenna assembly (front floor)

No. 2 indoor electrical key antenna assembly (rear floor)

Receives the request code from the certification ECU (smart key ECU assembly) and forms the vehicle interior detection area.

Electrical key and TPMS receiver assembly

Receives the smart key system code/wireless code sent from the electrical key transmitter sub-assembly and sends it to the certification ECU (smart key ECU assembly).

Wireless door lock buzzer

Sounds when warning functions operate in accordance with certification ECU (smart key ECU assembly) control.

Electrical key transmitter sub-assembly

Sends the ID code upon receiving a request signal.

Certification ECU (smart key ECU assembly)

Sends request codes to each electrical key antenna.

Distinguishes and verifies the ID code from the electrical key transmitter sub-assembly and sends signals to each ECU in response to operated functions (controls entire system).

Performs encryption code communication with the steering lock ECU (steering lock actuator or UPR bracket assembly) when ignition operations are performed.

Precaution
PRECAUTION 1. CAUTION REGARDING INTERFERENCE WITH ELECTRONIC DEVICES CAUTION: People with implantable cardiac pacemakers, cardiac resynchronization therapy-pacemakers or implantable car ...

How To Proceed With Troubleshooting
CAUTION / NOTICE / HINT HINT: Use these procedures to troubleshoot the smart key system (for Entry Function). *: Use the Techstream. PROCEDURE 1. VEHIC ...

Other materials:

Operation Check
OPERATION CHECK 1. NOTICE WHEN CHECKING FOLLOWING (a) Wireless door lock/unlock function: This wireless door lock control function operates only when the following 3 conditions are met: (1) The engine switch is off. (2) All doors are closed. (3) The power door lock control system is operatin ...

System Diagram
SYSTEM DIAGRAM Communication Table Transmitting ECU Receiving ECU Signal Communication Method Power Window Regulator Master Switch Assembly Power Window Regulator Motor Assembly (for Driver Door) Power Window ...

Monitor Drive Pattern
MONITOR DRIVE PATTERN 1. TEST MONITOR DRIVE PATTERN FOR ECT CAUTION: Perform this drive pattern on a level surface and strictly observe the posted speed limits and traffic laws while driving. HINT: Performing this drive pattern is one method to simulate the ECM (ECT) malfunction detection c ...

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