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 Perform Vehicle Identification Number (VIN) or frame number registration

    • MIL illuminates

    • DTC P0630 is stored

    		 -
    ECU Communication ID Registration (Immobiliser system) Engine start function See Service Bulletin for the registration method.

    • Throttle body with motor assembly

    • Cleaning 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

    • Fuel pump

    • Air fuel ratio 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, etc.

    • Engine start function, etc.

    		 for 2AR-FE

    • Throttle body with motor assembly

    • Cleaning 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

    • Fuel pump

    • Air fuel ratio 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, etc.

    • Engine start function, etc.

    		 for 2GR-FE
    Engine stop and start ECU*1

    • Upload the number of starter operations

    • Reset Air Conditioning Information

    • Learning Air Conditioning Information

    • Clear the Zero Point Calibration Data

    • Deceleration Sensor Zero Point Calibration

    		 Stop and start system -
    Air conditioning amplifier assembly*1

    • Reset Air Conditioning Information

    • Learning Air Conditioning Information
    Starter assembly*1 Clear Number of Starter Operations
    Airbag sensor assembly*1

    • Clear the Zero Point Calibration Data

    • Deceleration Sensor Zero Point Calibration

    • Continuously variable transaxle assembly*1

    • CVT fluid*1

    		 Bleed the oil pump assembly with motor (continuously variable transaxle assembly)
    Automatic transaxle assembly

    Perform the following procedures in the order shown:


    1. Reset Memory

    2. Input Transaxle Compensation Code into TCM

    3. Perform Road Test to Allow TCM to Learn

    • Large shift shock

    • Deterioration of fuel efficiency

    		 -

    • Valve body assembly

    • Shift solenoid valve SL3 and/or SL4

    Perform the following procedures in the order shown:


    1. Reset Memory

    2. Reset Transaxle Compensation Code

    3. Perform Road Test to Allow TCM to Learn
    Shift solenoid valve SL1 and/or SL2 Perform Road Test to Allow TCM to Learn

    TCM

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

    		 Possible to read transaxle compensation code

    Perform the following procedures in the order shown:


    1. Reset Memory

    2. Transfer Transaxle Compensation Code

    3. Perform Road Test to Allow TCM to Learn
    Impossible to read transaxle compensation code

    Perform the following procedures in the order shown:


    1. Reset Memory

    2. Reset Transaxle Compensation Code

    3. Perform Road Test to Allow TCM to Learn
    ECM

    Perform the following procedures in the order shown:


    1. Reset Memory

    2. Deceleration Sensor 0 Point Calibration

    3. CVT Oil Pressure Calibration

    • DTCs are stored

    • Neutral control is prohibited

    • Deterioration of fuel efficiency

    		 -

    • Continuously variable transaxle assembly

    • Oil pressure sensor

    Perform the following procedures in the order shown:


    1. Reset Memory

    2. Deceleration Sensor 0 Point Calibration

    3. CVT Oil pressure Calibration
    Airbag ECU assembly (Yaw rate and acceleration sensor)

    Perform the following procedures in the order shown:


    1. Reset Memory

    2. Deceleration Sensor 0 Point Calibration

    3. CVT Oil Pressure Calibration

    • Tire pressure warning ECU and receiver

    • Tire pressure warning valve and transmitter

    • Register Transmitter ID

    • Initialize tire pressure warning system

    • 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

    		 -
    Parking brake ECU assembly Operate the electric parking brake switch (combination switch assembly) Parking brake indicator light (red) blinks when the engine switch is first turned on (IG) -
    Skid control ECU (brake actuator assembly) Perform yaw rate and acceleration sensor zero point calibration and store system information

    • VSC disabled or malfunctions

    • DTCs are stored

    • Slip indicator light illuminates

    • ABS warning light illuminates

    		 -
    Yaw rate and acceleration sensor (airbag ECU assembly)

    Perform the following procedures in the order shown:


    1. Clear zero point calibration data and store system information

    2. Perform yaw rate and acceleration sensor zero point calibration and store system information
    Power steering ECU assembly

    • Perform Torque Sensor Zero Point Calibration

    • Assist Map Writing

    • DTCs are stored

    • Steering effort different between turning steering wheel left and right

    • EPS warning light illuminates

    		 -
    Electric power steering column sub-assembly Perform Torque Sensor Zero Point Calibration
    Navigation receiver assembly*2

    • Vehicle Contract Setting

    • Download Necessary Data

    • G-BOOK service

    • Some G-BOOK service content will be unavailable

    		 -
    Spiral cable with sensor sub-assembly Steering angle neutral point (Initialize panoramic view monitor system) Panoramic view monitor system -
    Navigation receiver assembly*3 Initialize Panoramic View Monitor System
    Parking assist ECU

    • Parking assist ECU initialization

    • Adjust steering angle
    Rear television camera assembly Rear television camera view adjustment
    Front television camera assembly Front television camera view adjustment

    • Side television camera assembly LH

    • Outer rear view mirror assembly LH

    • Side television camera assembly RH

    • Outer rear view mirror assembly RH

    		 Side television camera view adjustment

    • Front television camera assembly or radiator grille assembly

    • Rear television camera assembly

    • Side television camera assembly LH or outer rear view mirror assembly LH

    • Side television camera assembly RH or outer rear view mirror assembly RH

    		 Television camera view adjustment

    • Certification ECU (smart key ECU assembly)

    • ID code box (immobiliser code ECU)

    • Steering lock ECU (steering lock actuator or upper bracket assembly)

    • Electrical key transmitter sub-assembly

    • ECM

    • Main body ECU (multiplex network body ECU)

    		 Perform code registration (Immobiliser system)

    • Wireless door lock control system

    • Smart entry and start system

    • Engine start function

    • Steering lock system

    		 See Service Bulletin for the registration method.
    Position control ECU assembly Register the seat position Rear power seat function -

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

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

    • No. 2 rear cooling unit damper servo sub-assembly (Rear air mix)

    • No. 2 rear cooling unit damper servo sub-assembly (Rear mode)

    • No. 1 blower damper servo sub-assembly

    • Air conditioning amplifier assembly

    		 Initialize servo motor (Air conditioning system) DTCs are stored -

    • 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

    • Key-off operation function

    • Catch protection function

    • Window open warning function

    		 -

    • Sliding roof ECU (sliding roof drive gear assembly)

    • Rear slide roof glass sub-assembly

    • Sliding roof drive cable RH

    • Sliding roof drive cable LH

    		 Initialize Sliding Roof System

    • Auto operation function

    • Jam protection function

    • Key-off operation function

    • Key-linked function

    • Wireless transmitter-linked function

    • Sliding roof open warning function

    		 -
    Slide door motor unit Reset Slide Door Close Position Power slide door system -
    Back door motor unit Reset Back Door Close Position Power back door system -
    Headlight light control ECU sub-assembly LH

    • Synchronize vehicle information

    • Initialize headlight leveling ECU assembly

    		 Headlight leveling function -
    Rear height control sensor sub-assembly Initialize headlight light control ECU sub-assembly LH

    • *1: w/ Stop and Start System

    • *2: w/ G-BOOK

    • *3: w/ Panoramic View Monitor System