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:

Removal
REMOVAL PROCEDURE 1. REMOVE FRONT CONSOLE BOX (See page ) 2. DISCONNECT TRANSMISSION CONTROL CABLE ASSEMBLY (a) Move the shift lever to N. (b) Disconnect the end of the transmission control cable assembly from the transmission floor shift assembly. Text in Illustration ...

Removal
REMOVAL PROCEDURE 1. REMOVE FRONT FENDER SEAL LH (a) Remove the 5 clips and front fender seal LH. 2. REMOVE FRONT FENDER SEAL RH HINT: Use the same procedure as for the LH side. 3. REMOVE FRONT EXHAUST PIPE ASSEMBLY (a) Disengag ...

Removal
REMOVAL PROCEDURE 1. REMOVE FUEL PUMP ASSEMBLY (for High Pressure) (See page ) 2. REMOVE NO. 2 FUEL PIPE SUB-ASSEMBLY (a) Loosen the 2 union nuts and remove the No. 2 fuel pipe sub-assembly from the fuel delivery pipe RH and fuel delivery pipe sub-assembly LH. Text in Illustration ...