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:

Transmitter ID not Received in Main Mode (C2126/26)
DESCRIPTION After all transmitter IDs are registered, DTC C2126/26 is stored in the tire pressure warning ECU and receiver and the tire pressure warning light blinks for 1 minute and then illuminates. When the tire pressure warning ECU and receiver successfully receives radio waves from all ...

Open or Short in Front Speed Sensor RH Circuit (C1405,C1406)
DESCRIPTION Refer to DTCs C1401 and C1402 (See page ). DTC Code DTC Detection Condition Trouble Area C1405 C1406 Either condition is met: An open in the speed sensor signal circuit continues for 0.5 seconds or mor ...

Removal
REMOVAL CAUTION / NOTICE / HINT CAUTION: Some of these service operations affect the SRS airbag system. Read the precautionary notices concerning the SRS airbag system before servicing (See page ). If the side airbag was deployed, replace the front seat assembly with a ne ...