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

Refer to the TOYOTA Repair Manual for each inspection procedure.


  1. PROCEDURES NECESSARY WHEN ECU OR OTHER PARTS ARE REPLACED

    Procedures Necessary when ECU or Other Parts are Replaced
    Replacement Part Necessary Procedures Effects / Inoperative Functions When Necessary Procedures are not Performed Notes
    ECM (1UR-FE) Register VIN. DTC P0630 is output. -
    ECM (1VD-FTV, w/ DPF)

    • Learning values save

    • Learning values write

    		 Engine starting -
    Engine assembly (1VD-FTV, w/ DPF)

    • Clear Crank Time Compensation Data

    • Injector compensation code registration

    • Pilot quantity learning

    		 Engine starting -
    Crankshaft position sensor plate (1VD-FTV, w/ DPF) Clear crank time compensation data Crank time compensation data compensation amount is same as before replacement, affecting crank time compensation data -
    Air fuel ratio sensor (1VD-FTV, w/ DPF) Clear A/F sensor compensation data EGR volume is affected -
    Fuel supply pump (1VD-FTV, w/ DPF) Supply pump initialization Engine startability -

    1VD-FTV, w/ DPF


    • Front exhaust pipe assemblies (DPF catalytic converter)

    • Monolithic converter assemblies (CCo catalytic converter)

    • Clear DPF thermal deterioration data

    • Learning values write

    		 Even if catalytic converter is replaced with new one, catalyst record of DPF thermal deterioration stored in ECM is same as before replacement -
    Fuel injector (1VD-FTV, w/ DPF)

    • Injector compensation code registration

    • Pilot quantity learning

    		 DTC P062F is output -
    Fuel injector (1VD-FTV, w/o DPF) Injector compensation code registration DTC P1601 is output -
    Fuel supply pump (1VD-FTV, w/o DPF) ECM initialization Engine starting -
    ECM (1VD-FTV, w/o DPF) ECU communication ID registration Engine starting -
    Distance control ECU Initialization Cannot adjust millimeter wave radar sensor -
    Millimeter wave radar sensor assembly Adjusting the radar beam axis Dynamic radar cruise control system does not operate normally -
    Any of shift solenoid valves Reset memory Large shift shock -
    Transmission wire Add and adjust the ATF level Automatic transmission assembly damaged -
    Valve body assembly Add and adjust the ATF level Automatic transmission assembly damaged -
    Reset memory Large shift shock -
    Oil cooler and oil cooler tube Add and adjust the ATF level Large shift shock -
    Park/neutral position switch Adjust the park/neutral position switch

    1. Back-up light does not turn on

    2. Meter indicator display malfunction

    3. Vehicle undrivable

    4. Shifting not possible

    		 -
    Transmission floor shift assembly Adjust the shift lever position

    1. Back-up light does not turn on

    2. Meter indicator display malfunction

    3. Vehicle undrivable

    4. Shifting not possible

    		 -
    Automatic transmission assembly Add and adjust the ATF level Automatic transmission assembly damaged -
    Reset memory Large shift shock -
    Automatic transmission fluid (for AB60F, 3UR-FE) ATF thermal degradation estimate reset The value of the Data List item "ATF Thermal Degradation Estimate" is not estimated correctly. -

    • Clutch pedal (for LHD)

    • Clutch master cylinder (for LHD)

    		 Inspect and adjust clutch pedal

    • Clutch slips

    • Clutch dies not disengage

    		 -

    • Clutch pedal (for RHD)

    • Clutch master cylinder (for RHD)

    		 Inspect and adjust clutch pedal

    • Clutch slips

    • Clutch dies not disengage

    		 -
    Suspension control ECU Vehicle height offset calibration Vehicle height sensor date may be affected due to installation position, or vehicle height recognition may be erroneous After vehicle height offset calibration is performed, it is necessary to calibrate the yaw rate sensor
    Height control sensor Vehicle height offset calibration Vehicle height sensor date may be affected due to installation position, or vehicle height recognition may be erroneous After vehicle height offset calibration is performed, it is necessary to calibrate the yaw rate sensor

    • Suspension

    • Underbody components

    • Steering angle neutral point in memory

    • Yaw rate and G sensor zero point calibration

    • The brake control and dynamic control systems do not operate properly

    • VGRS system

    • Parking assist monitor system

    		 Removed/installed or replaced
    Tire pressure warning ECU and receiver

    1. Register transmitter IDs

    2. Initialize tire pressure warning system

    • When DTC detection conditions of "transmitter ID not received" DTC is met, tire pressure warning light blinks for 1 minute, and then illuminates

    • Tire pressure monitoring function

    		 -
    Tire pressure warning valve and transmitter

    1. Register transmitter IDs

    2. Initialize tire pressure warning system

    • When DTC detection conditions of "transmitter ID not received" DTC is met, tire pressure warning light blinks for 1 minute, and then illuminates

    • Tire pressure monitoring function

    		 Even if only one wheel is replaced, IDs for all 5 wheels must be registered.
    Skid control ECU (Master cylinder solenoid) Deceleration sensor zero point calibration The brake control system does not operate properly -
    Deceleration sensor

    1. Clearing zero point calibration data

    2. Deceleration sensor sensor zero point calibration

    		 The brake control system does not operate properly -
    Skid control ECU (Master cylinder solenoid)

    1. Clearing zero point calibration data

    2. Yaw rate and acceleration sensor zero point calibration

    		 The brake control and dynamic control systems do not operate properly -
    Yaw rate sensor assembly

    1. Clearing zero point calibration data

    2. Yaw rate and acceleration sensor zero point calibration

    		 The brake control and dynamic control systems do not operate properly -
    Vehicle height adjustment

    1. Clearing zero point calibration data

    2. Yaw rate and acceleration sensor zero point calibration

    3. Steering sensor initialization

    		 The brake control and dynamic control systems do not operate properly w/ active height control system

    • Brake pedal

    • Hydraulic brake booster

    		 Check brake pedal height

    • Brake performance problem

    • Delayed stop light illumination or continuous illumination

    		 -

    • Parking brake lever

    • Parking brake cable

    • Parking brake assembly

    		 Adjust parking brake lever travel

    • Brake drag

    • Brake performance problem

    • Delayed stop light illumination or continuous illumination

    		 -

    • Steering control ECU

    • Steering column

    • Steering intermediate shaft

    • Steering actuator assembly

    		 Calibration

    • VGRS system

    • DTC output

    		 -
    Steering angle sensor Initialization

    • VGRS system

    • Other related systems cannot operate properly

    		 -
    Steering column Steering off center adjustment Steering system does not operate normally -
    Multi-media module receiver assembly (w/ G-BOOK system) Vehicle contract setting G-BOOK service If the multi-media module receiver assembly is replaced on vehicles that do not have a contract for the G-BOOK service, perform the vehicle contract setting.
    Rear television camera Rear television camera optional axis (Camera position setting) Vehicle width extension lines and expected course are deviated Replace or installation angle of the rear television camera changes because of the removal and installation of the rear television camera
    Side television camera Side television camera optional axis (Camera position setting) Vehicle parallel lines and expected course are deviated Replace or installation angle of the side television camera changes because of the removal and installation of the side television camera
    Parking assist ECU

    • Steering angle neutral point in memory

    • Store the left and right maximum steering angles

    • Rear television camera optical axis (Camera position setting)

    • Side television camera optical axis (Camera position setting)

    		 Parking assist monitor system Replace or installation angle of the rear television camera changes because of the removal and installation of the rear television camera

    w/ Entry and Start System:


    • ID code box

    • Steering lock ECU

    • Key

    • Certification ECU

    		 Registration

    • Wireless door lock operation

    • Entry operation

    • Engine starting

    • Steering unlock

    		 Refer to the Service Bulletin for the registration procedure.

    w/o Entry and Start System:


    • Transponder key ECU

    • ECM

    • Key

    		 Registration Engine starting Refer to the Service Bulletin for the registration procedure.

    w/o Entry and Start System:


    • Door control transmitter

    • Door control receiver

    		 Register recognition code Wireless door lock operation -
    Servo motors Servomotors initialization Air conditioning system does not operate properly During initialization, the AUTO indicator light comes on, and then goes off when initialization has finished.

    for Models with Jam Protection Function on 4 Windows:


    • Front Power window regulator motor LH

    • Front Power window regulator motor RH

    • Rear Power window regulator motor LH

    • Rear Power window regulator motor RH

    		 Initialize the motor

    • Auto Operation

    • Jam protection function

    • Power window control system (for Models with Jam Protection Function on 4 Windows)

    		 -

    for Models with Jam Protection Function on Driver Door Window Only:


    • Front Power window regulator motor LH (for LHD)

    • Front Power window regulator motor RH (for RHD)

    		 Initialize the motor

    • Auto Operation

    • Jam protection function

    • Power window control system (for Models with Jam Protection Function on Driver Door Window Only)

    		 -
    Inner rear view mirror

    • Compass zone setting

    • Compass calibration

    • Register transmitter code

    		 Direction is not displayed correctly -

    • Sliding roof driver gear (Sliding roof ECU)

    • Sliding roof glass

    		 Initialize sliding roof system

    • Auto operation

    • Jam protection function

    • Sliding roof operation after engine switch OFF

    • Wireless door lock control function

    • Key-linked operation function (Driver side door only)

    • Entry lock switch-linked operation

    		 -

    • Power back door unit

    • Back door lock

    		 Initialize back door system Power back door system -

    w/ Static Headlight Auto Leveling


    • Headlight leveling ECU

    • Height control sensor LH

    		 Initialization Headlight leveling function -

    w/ Dynamic Headlight Auto Leveling, w/o Active Height Control Suspension


    • Headlight swivel ECU

    • Height control sensor LH

    		 Initialization Headlight leveling function -
    Headlight assembly Adjustment Beam axis deviation -
    Fog light assembly Adjustment Beam axis deviation -
    Front bumper Adjustment Beam axis deviation -