2013 Toyota Prius TwoFACTORY OEM SERVICE PROCEDURE

System Description

WARNING: This page is about a different variant/trim than selected.
  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, "â—¦" 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) â—¦ â—¦
    Power Window Regulator Motor Assembly (for Driver Side) - -
    Power Window Regulator Motor Assembly (for Front Passenger Side) - -
    Power Window Regulator Motor Assembly (for Rear LH Side) - -
    Power Window Regulator Motor Assembly (for Rear RH Side) - -
    Multiplex Network Master Switch Assembly - -
    CERTIFICATION BUS LINES

    Component Master Control LIN Communication DTC Output Function
    Certification ECU (Smart Key ECU Assembly) â—¦ â—¦
    Power Management Control ECU - â—¦
    Transmission Control ECU Assembly - -
    ID Code Box (Immobiliser Code ECU)* - -
    • *: for Canada
    AIR CONDITIONING BUS LINES

    Component Master Control LIN Communication DTC Output Function
    Air Conditioning Amplifier Assembly â—¦ -
    Heater Control Panel Assembly - -
Factory Service Tools

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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • • You smell fuel, burning insulation, or see smoke.
  • • Brakes feel soft, pull hard to one side, or make grinding noises.
  • • The engine overheats, stalls repeatedly, or misfires under load.
  • • You are missing required tools, torque specs, or safe lifting equipment.
  • • You are not confident in the next step or safety outcome.