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:

Reporting safety defects for U.S. owners
If you believe that your vehicle has a defect which could cause a crash or could cause injury or death, you should immediately inform the National Highway Traffic Safety Administration (NHTSA) in addition to notifying Toyota Motor Sales, U.S.A., Inc. (Toll-free: 1-800-331-4331). If NHTSA rece ...

Entire Combination Meter does not Operate
DESCRIPTION This circuit is the power source circuit for the meter. This circuit provides two types of power sources, one is a constant power source mainly used as a backup power source, and the other is an IG power source mainly used for signal transmission. The constant power source is main ...

Bottle holders
Front Front console box (Separated type front seat) Rear (Double Cab models) ■Bottle holders Depending on their size or shape, some bottles may not fit in the holders. NOTICE ■Items that should not be stowed in the bottle holders Put the cap on before stowing a bottle. Do ...

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