Toyota Tacoma (2015-2018) Service Manual: System Description
SYSTEM DESCRIPTION
1. LIN COMMUNICATION SYSTEM DESCRIPTION
The LIN communication system is used for communication between the components in the tables below. If communication cannot be performed through LIN communication because of an open in the communication lines or other reasons, the master control ECU of the relevant system will store a DTC. Refer to the table below about the communication bus lines and connected components.
HINT:
- Each component has a fail-safe function which activates to maintain the minimum performance of the system and protect the system.
- In the following table, "â—‹" indicates that the function applies, and "-" indicates that it does not.
|
Component |
Master Control |
LIN Communication DTC Output Function |
|---|---|---|
|
Main Body ECU (Multiplex Network Body ECU) |
â—‹ |
â—‹ |
|
Front Power Window Regulator Motor Assembly LH*1 |
- |
- |
|
Front Power Window Regulator Motor Assembly RH*1 |
- |
- |
|
Power Window Regulator Master Switch Assembly*1 |
- |
- |
|
Sliding Roof ECU (Sliding Roof Drive Gear Sub-assembly)*2 |
- |
- |
- *1: w/ Jam Protection Function
- *2: w/ Sliding Roof
|
Component |
Master Control |
LIN Communication DTC Output Function |
|---|---|---|
|
Certification ECU (Smart Key ECU Assembly) |
â—‹ |
â—‹ |
|
Steering Lock ECU (Steering Lock Actuator or Upper Bracket Assembly) |
- |
- |
Parts Location
PARTS LOCATION
ILLUSTRATION
ILLUSTRATION
ILLUSTRATION
...
System Diagram
SYSTEM DIAGRAM
1. DOOR BUS LINES
2. CERTIFICATION BUS LINES (w/ Smart Key System)
...
Other materials:
Lost Communication with ECM/PCM "A" Missing Message (U010087)
DESCRIPTION
The engine control unit and the transmission control unit are located inside
the ECM. The engine control unit intercommunicates with the transmission control
unit with the Controller Area Network (CAN).
If there is a problem in this intercommunication, the ECM stores a DTC.
...
Problem Symptoms Table
PROBLEM SYMPTOMS TABLE
HINT:
If a problem occurs in certain locations or at certain times of day,
check for the possibility of wave interference.
When the electrical key transmitter sub-assembly is brought near the
electrical key and TPMS receiver assembly (RF band), front outs ...
Clock
Adjusts the hours
Adjusts the minutes
■The clock is displayed when
The engine switch is in the ACC or ON position.
■When disconnecting and reconnecting battery terminals
The time display will automatically be set to 1:00. ...
