Toyota CH-R Service Manual: System Description

Toyota CH-R Service Manual / Networking / Lin Communication System / System Description

SYSTEM DESCRIPTION

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 such as when there is an open or short in a communication line, 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 operates in the event of a malfunction to protect the system and allow communication between other components to continue.
  • 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)

○

○

Power Window Regulator Motor Assembly (for Driver Door)

-

-

Power Window Regulator Motor Assembly (for Front Passenger Door)

-

-

Power Window Regulator Motor Assembly (for Rear LH Door)

-

-

Power Window Regulator Motor Assembly (for Rear RH Door)

-

-

Multiplex Network Master Switch Assembly

-

-

Double Lock Door Control Relay Assembly*1

-

-
  • *1: w/ Double Locking System
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)

-

-

ID Code Box (Immobiliser Code ECU)

-

-
    System Diagram
    SYSTEM DIAGRAM DOOR BUS LINES CERTIFICATION BUS LINES (w/ Smart Key System) ...

    How To Proceed With Troubleshooting
    CAUTION / NOTICE / HINT HINT: Use the following procedure to troubleshoot the LIN communication system. *: Use the Techstream. PROCEDURE 1. VEHICLE BROU ...

    Other materials:

    Toyota CH-R Service Manual > Occupant Classification System: Fail-safe Chart
    FAIL-SAFE CHART FAIL-SAFE FUNCTION (a) The following chart shows the status of the front passenger SRS items and passenger airbag ON/OFF indicator operation under each condition. The passenger airbag ON/OFF indicator ("ON" and "OFF") comes on for approximately 4 s ...

    Toyota CH-R Service Manual > Occupant Classification System: Rear Occupant Classification Sensor LH Collision Detection (B1787)
    DESCRIPTION DTC B1787 is stored when the occupant detection ECU receives a collision detection signal sent by the rear in weight detection sensor sub-assembly in the case of an accident. DTC B1787 is also stored when the front seat assembly RH is subjected to a strong impact, even if an actu ...

    Toyota CH-R Owners Manual

    Toyota CH-R Service Manual

    © 2017-2024 Copyright www.tochr.net
    0.0118