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 Vehicle Identification Number (VIN) registration MIL comes on

    for 4GR-FSE (w/ canister pump module)

    for 4GR-FSE (w/o canister pump module)
    ECU communication ID registration (Immobiliser system) Engine start function See the Service Bulletin for the registration method.

    • Throttle body with motor assembly

    • Cleaning the deposits from the throttle body with motor assembly

    • Engine assembly

    • Cylinder head sub-assembly

    • Camshaft (for intake or exhaust camshaft)

    • Camshaft timing gear assembly

    • Camshaft timing exhaust gear assembly

    • Piston or piston ring

    • Mass air flow meter sub-assembly

    • Fuel injector assembly

    • Cold start fuel injector assembly*8

    • Fuel pump for low pressure side

    • Fuel pump for high pressure side

    • Air fuel ratio sensor

    • Heated oxygen sensor

    • Engine coolant temperature sensor

    • Spark plug

    • Ignition coil assembly

    • Air leaks from intake system

    • Gas leaks from exhaust system

    • Knock control sensor

    		 Inspection after repair Poor idle, engine start, etc. for 4GR-FSE (w/ canister pump module)
    Millimeter wave radar sensor assembly Adjust millimeter wave radar sensor assembly

    • Dynamic radar cruise control system

    • Pre-crash safety system

    		 -
    Lane departure warning camera Adjust lane departure warning camera Lane departure alert system -

    • Automatic transmission assembly

    • Engine assembly

    • ECM

    		 Reset memory

    • Large shift shock

    • Deterioration of fuel efficiency

    		 for A960E
    Automatic transmission fluid ATF thermal degradation estimate reset The value of the Data List item "ATF Thermal Degradation Estimate" is not estimated correctly.
    Automatic transmission assembly

    1. Set transmission compensation code (step 1)*1

    2. Perform road test to allow TCM to learn

    • Large shift shock

    • Deterioration of fuel efficiency

    		 -

    • Valve body assembly

    • Shift solenoid valve SL1, 2, 3, 4 and 5

    		 Perform road test to allow TCM to learn

    TCM

    (If possible, read the transmission compensation code from the previous TCM)

    1. Transfer transmission compensation code (step 2)*2

    2. Perform road test to allow TCM to learn

    TCM

    (If impossible, read the transmission compensation code from the previous TCM)

    1. Set transmission compensation code (step 1)*3

    2. Perform road test to allow TCM to learn

    • Engine assembly

    • ECM

    1. Reset memory

    2. Perform road test to allow TCM to learn
    Absorber control ECU Perform registration of vehicle identification information

    • Interrupts damping force control after moving to the 9th step.

    • DTCs are output

    		 -

    • Tire pressure warning ECU and receiver

    • Tire pressure warning valve and transmitter

    • Transmitter ID registration

    • 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

    for Initialization

    for Registration
    Skid control ECU (brake actuator assembly) Yaw rate and acceleration sensor zero point calibration and store system information.

    • VSC disabled or malfunctioning

    • DTCs are output

    • Slip indicator light illuminated

    • ABS warning light illuminated

    		 -
    Yaw rate and acceleration sensor

    1. Clearing zero point calibration data and system information.

    2. Yaw rate and acceleration sensor zero point calibration and store system information.

    • Power steering ECU assembly

    • Power steering link assembly

    		 Perform rotation angle sensor initialization and torque sensor zero point calibration

    • DTCs are output

    • Steering effort different between turning steering wheel left and right

    		 -
    Power steering ECU assembly Assist map writing

    • DTCs are output

    • EPS warning light illuminated

    • VGRS ECU (front steering control ECU)

    • Steering actuator assembly

    • Parts between the steering wheel and tires have been removed/installed, replaced or adjusted

    		 Perform actuator angle neutral point calibration and initialization

    • Variable gear ratio steering system

    • Steering wheel off-center

    • DTCs are output

    for Initialization

    for Calibration

    • Radio receiver assembly*6

    • Telematics transceiver*4

    		 Vehicle contract setting

    • G-BOOK service

    • Emergency call service

    *4

    *5
    Radio receiver assembly*6 Download necessary data Some G-BOOK service content will be unavailable.

    *4

    *5
    Radio receiver assembly Parking assist monitor system initialization Parking assist monitor system -
    Spiral cable with sensor sub-assembly

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

    • Steering angle setting

    		 Parking assist monitor system

    • Suspension, tires, etc.

    • Rear television camera assembly

    		 Rear television camera assembly optical axis (Back camera position setting) Parking assist monitor system
    Blind spot monitor sensor Blind spot monitor beam axis inspection DTCs are output -

    • Inner rear view mirror assembly

    • Garage door opener transmitter

    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)

    • Steering lock ECU (steering lock actuator assembly)

    • ECM

    • Main body ECU (multiplex network body ECU)

    • Electrical key transmitter sub-assembly

    • Telematics transceiver*4

    		 Code registration (Immobiliser system)

    • Wireless door lock control system

    • Entry and start system

    • Engine start

    • Steering lock system

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

    • No. 1 air conditioning radiator damper servo sub-assembly

    • No. 2 air conditioning radiator damper servo sub-assembly (driver side

    • No. 2 air conditioning radiator damper servo sub-assembly (front passenger side)

    • No. 3 air conditioning radiator damper servo sub-assembly

    • No. 4 air conditioning radiator damper servo sub-assembly

    • No. 5 air conditioning radiator damper servo sub-assembly

    • No. 1 blower damper servo sub-assembly

    		 Initialization servo motor (Air conditioning system) DTCs are output -

    • Door window regulator assembly

    • Power window regulator motor assembly

    • Door glass

    • Door glass run

    		 Initialize power window control system

    • Auto up and down function

    • Jam protection function

    • Remote control function

    • Key-linked function

    • Wireless transmitter-linked function*7

    • Key-off operation function

    • Window open warning function

    		 -

    • Sliding roof ECU (sliding roof drive gear sub-assembly)

    • Sliding roof glass sub-assembly

    • Sliding roof drive cable sub-assembly

    		 Initialize sliding roof system

    • Auto operation function

    • Jam protection function

    • Key-off operation function

    • Key-linked function

    • Wireless transmitter-linked function*7

    • Sliding roof open warning function

    		 -
    Headlight leveling ECU assembly

    • Synchronize the vehicle information

    • Perform headlight leveling ECU assembly initialization

    		 Headlight leveling function -
    Rear height control sensor sub-assembly Perform headlight leveling ECU assembly initialization Headlight leveling function

    • *1: New automatic transmission's compensation code.

    • *2: Read the compensation code from the previous TCM, then transfer it to the new TCM.

    • *3: Set the transmission compensation code of the current automatic transmission.

    • *4: for Single Beam Headlight

    • *5: for Triple Beam Headlight

    • *6: w/ Stop and Start System

    • *7: Read the compensation code from the previous ECM, then transfer it to the new ECM.

    • *8: w/ G-BOOK

    • *9: w/ Telematics Transceiver

    • *10: w/o Telematics Transceiver

    • *11: w/ Blocking System