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

Toyota Tacoma (2015-2018) Service Manual / Multiplex Communication / Lin Communication System / 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, "○" indicates that the function applies, and "-" indicates that it does not.

Door Bus Lines

Component	Master Control	LIN Communication DTC Output Function
Main Body ECU (Multiplex Network Body ECU)	○	○
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

Certification Bus Lines (w/ Smart Key System)

Component	Master Control	LIN Communication DTC Output Function
Certification ECU (Smart Key ECU Assembly)	○	○
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:

Compressor Lock Sensor Circuit (B1422/22)
SYSTEM DESCRIPTION The ECM sends the engine speed signal to the air conditioning amplifier assembly via CAN communication. The air conditioning amplifier assembly reads the difference between compressor speed and engine speed. When the difference becomes too large, the air conditioning ampli ...

Front Speed Sensor RH Output Malfunction (C1413,C1414)
DESCRIPTION Refer to DTCs C1401 and C1402 (See page ). DTC No. Detection Item DTC Detection Condition Trouble Area C1413 Front Speed Sensor RH Output Malfunction Any of the following is detected: An o ...

Lost Communication with HMI-LAN (B150A)
DESCRIPTION The combination meter assembly receives a text data signal from the navigation receiver assembly or radio and display receiver assembly via local bus communication. Based on this signal, navigation system information is displayed on the multi-information display. This DTC is store ...