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

Refer to the TOYOTA Repair Manual for each work procedure.


  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*1 Vehicle Identification Number (VIN) registration MIL comes on -
    Millimeter wave radar sensor assembly Adjust millimeter wave radar sensor assembly (Dynamic radar cruise control system)

    • Dynamic radar cruise control system

    • Pre-crash safety system

    		 -

    • Tire pressure warning ECU and receiver

    • Tire pressure warning valve and transmitter

    • Code registration (Tire pressure warning system)

    • Initialization

    • When DTC detection conditions of "transmitter ID not received" DTC are met, TPWS indicator blinks for 1 minute, and then illuminates.

    • Tire pressure warning function

    		 -
    Brake booster with master cylinder (Skid control ECU, brake actuator or pressure sensor)

    1. Initialization and calibration of the linear solenoid valve

    2. Yaw rate and acceleration sensor zero point calibration

    • ABS warning light illumination

    • Slip indicator light illumination

    • Brake warning light / yellow (minor malfunction) illumination

    • VSC disabled or malfunctioning

    		 -

    • Brake pedal stroke sensor

    • Brake pedal

    1. Clearing stored linear solenoid valve calibration data

    2. Initialization and calibration of the linear solenoid valve

    • ABS warning light illumination

    • Slip indicator light illumination

    • Brake warning light / yellow (minor malfunction) illumination

    • VSC disabled or malfunctioning
    Yaw rate and acceleration sensor

    1. Clearing zero point calibration data

    2. Yaw rate and acceleration sensor zero point calibration

    • ABS warning light illumination

    • Slip indicator light illumination

    • Brake warning light / yellow (minor malfunction) illumination

    • VSC disabled or malfunctioning
    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

    • Radio receiver assembly*2

    • Telematics transceiver*2

    		 Vehicle contract setting

    • G-BOOK service

    • Emergency call service
    Radio receiver assembly*2 Download necessary data Some G-BOOK service content will be unavailable. -
    Radio receiver assembly*3

    • Vehicle contract setting

    • Download necessary data

    • G-BOOK service

    • Some G-BOOK service content will be unavailable.

    		 -
    Radio receiver assembly Parking assist monitor system initialization Parking assist monitor system (w/ Parallel Parking Assist Function) -
    Spiral cable with sensor sub-assembly

    1. Steering angle neutral point (Initialize parking assist monitor system)

    2. Steering angle setting

    • Rear television camera assembly

    • Suspension, tires, etc. (the vehicle height changes because of suspension or tires replacement)

    		 Rear television camera assembly optical axis (Back camera position setting)
    Spiral cable with sensor sub-assembly

    • Steering angle neutral point (Initialize parking assist monitor system)

    • Steering angle setting

    		 Parking Assist Monitor System (w/o Parallel Parking Assist Function) -
    Rear television camera assembly Parking assist monitor system initialization
    Suspension, tires, etc. (the vehicle height changes because of suspension or tires replacement) Television camera assembly optical axis (Back camera position setting)
    Inner rear view mirror assembly*4

    Re-registration of codes in the garage door opener system


    • Register transmitter code

    • Rolling code systems

    		 Garage door opener system -

    • Certification ECU (smart key ECU assembly)

    • ID code box (immobiliser code ECU)

    • Transmission control ECU assembly

    • Key

    		 Code registration (Engine immobiliser system)

    • Wireless door lock control system

    • Entry and start system

    • Push-button start system

    • Hybrid control system start

    		 See the Service Bulletin for the registration method.
    Telephone Transceiver Assembly Set the contract mode Blocking system -

    • Power window regulator motor assembly

    • Door window regulator

    • Door glass and/or door glass run etc

    		 Initialize power window control system

    • Automatic door glass open/ close function

    • Jam protection function

    • Operation function after power switch is turned off

    		 -

    • Sliding roof ECU (sliding roof drive gear assembly)

    • Sliding roof housing

    • Sliding roof glass

    		 Initialize sliding roof ECU (pulse sensor initial position setting)

    • Automatic function of sliding roof

    • Jam protection function

    • Operation function after power switch is turned off

    		 -

    • Headlight leveling ECU assembly

    • Rear height control sensor sub-assembly

    		 Perform headlight leveling ECU assembly initialization Automatic level function -

    • *1: for Brazil OBD

    • *2: w/ G-BOOK System (w/ Telematics Transceiver)

    • *3: w/ G-BOOK System (w/o Telematics Transceiver)

    • *4: w/ Garage Door Opener System