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:

Listening to a USB memory device
Connecting a USB memory device enables you to enjoy music from the vehicle speakers. Select “USB” on the “Select Audio Source” screen. Connecting a USB memory device Audio control screen 1. “Select Audio Source” screen appears 2. Displaying the folder list 3. Random playback 4 ...

Stop Light Switch OFF Stuck Malfunction (C1426)
DESCRIPTION The skid control ECU (brake actuator assembly) inputs the stop light signal and brake operation condition. When the brake pedal is depressed and the stop light switch signal is not input, C1426 is output. DTC No. Detection Item DTC Detection Conditi ...

Diagnosis System
DIAGNOSIS SYSTEM CHECK DLC3 (a) Check the DLC3. Click here FUNCTION OF WARNING INDICATOR AND MESSAGE (a) If the pre-collision system is not functioning properly, the driver is warned by the PCS warning light and a warning message displayed on the multi-information display. Mas ...