Toyota Tacoma 2015-2018 Service Manual: System Diagram
SYSTEM DIAGRAM
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:
Diagnosis System
DIAGNOSIS SYSTEM
DIAGNOSIS FUNCTION
(a) The diagnosis function turns off the cruise control indicator, illuminates
the master warning light and displays a warning message when a malfunction is detected.
When a malfunction is detected in the dynamic radar cruise control system, DTCs
are store ...
Removal
REMOVAL
CAUTION / NOTICE / HINT
HINT:
Use the same procedure for the RH side and LH side.
The following procedure is for the LH side.
PROCEDURE
1. PRECAUTION
NOTICE:
After turning the ignition switch off, waiting time may be required before disconnecting
the cable from the ...
Installation
INSTALLATION
PROCEDURE
1. INSTALL HEADLIGHT DIMMER SWITCH ASSEMBLY
(a) Engage the 3 claws to install the headlight dimmer switch assembly.
(b) Connect the connector.
2. INSTALL WINDSHIELD WIPER SWITCH ASSEMBLY
3. INSTALL SPIRAL CABLE WITH SENSOR SUB-ASSEMBLY
(See page ) ...