WHEN REMOVING,INSTALLING,REPAIRING OR REPLACING PARTS PROCEDURES NECESSARY WHEN ECU OR OTHER PARTS ARE REPLACED

Each inspection procedure refers to the TOYOTA Repair Manual.


  1. PROCEDURES NECESSARY WHEN ECU OR OTHER PARTS ARE REPLACED

    Replacement Part Necessary Procedure Effect/Inoperative Function when Necessary Procedures are not Performed Note
    ECM Vehicle Identification Number (VIN) registration MIL comes on -
    ECU communication ID registration (Engine immobiliser system) Engine start Refer to the Service Bulletin for the registration method

    • TCM

    • Automatic transmission assembly

    • Valve body assembly

    • Transmission wire

    • Shift solenoid valve S1, S2, S3, S4, SL1, SL2, SLT, SLU, and/or SR

    • Engine assembly

    Reset memory
    • Large shift shock

    • The deterioration of fuel efficiency

    -

    • Brake actuator assembly (Skid control ECU)

    • Steering sensor

    • Steering column assembly

    • Rack and pinion power steering gear assembly

    • Adjust front wheel alignment

    VSC sensor neutral memorization VSC system does not operate normally (warning indicator light comes on). -
    Power steering ECU assembly Rotation angle sensor initialization and torque sensor zero point calibration
    • P/S warning light comes on

    • EPS control

    -
    Steering column assembly Rotation angle sensor initialization and torque sensor zero point calibration Steering effort is different between turning steering wheel to left and right

      w/ Entry and Start System

    • Electrical key transmitter sub-assembly

    • ID code box (immobiliser code ECU)*1

    • Certification ECU (smart key ECU assembly)

    Registration
    • Wireless door lock/unlock operation

    • Entry operation

    • Engine starting

    • Steering lock/unlock

    Refer to the Service Bulletin for the registration method

      w/ Entry and Start System

    • Steering lock ECU (steering lock actuator assembly)

    Registration Engine start Refer to the Service Bulletin for the registration method

      w/o Entry and Start System

    • Key

    • Main body ECU (network gateway ECU)

    • Combination meter assembly*2

    • Transponder key ECU assembly*3

    Code registration (Engine immobiliser system) Engine start Refer to the Service Bulletin for the registration method

      w/o Entry and Start System

    • Door control transmitter module set sub-assembly

    • Door control receiver

    Code registration (Wireless door lock system) Wireless door lock/unlock operation -

    • Height control sensor subassembly RR

    • Headlight leveling ECU assembly

    Perform headlight leveling ECU assembly initialization Headlight leveling function -

    • Power window regulator motor assembly

    • Door window regulator sub-assembly

    • Door glass

    • Front door frame sub-assembly rear lower

    • Front door sush

    • Front door opening trim weatherstrip

    Initialize power window control system
    • Auto up/down function

    • Jam protection function

    • Operation function after ignition switch is turned off

    -

    • *1: w/ ID Code Box

    • *2: w/o Transponder Key ECU Assembly

    • *3: w/ Transponder Key ECU Assembly