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

    Procedures necessary when ECU or other parts are replaced
    Replacement Part Necessary Procedure Effect or Inoperative Function when Necessary Procedure is not Performed Note
    Fuel injector

    • Injector compensation code registration

    • Pilot quantity learning

    		 Injector fuel injection compensation amount is same as before replacement, affecting injector fuel injection volume -
    Fuel supply pump Supply pump initialization Engine startability is affected -
    ECM

    • Learning values save

    • Learning values write

    		 Engine starting -
    Engine assembly

    • Clear Crank Time Compensation Data

    • Input Injector Compensation Code

    • Pilot Quantity Learning

    		 Engine starting -
    Crankshaft position sensor plate Clear crank time compensation data Injector fuel injection compensation amount is same as before replacement, affecting injector fuel injection volume -
    catalyst*1 Clear DPNR/DPF thermal deterioration data Even if catalytic converter is replaced with new one, catalyst record of DPNR/DPF thermal deterioration stored in ECM is same as before replacement -
    Air fuel ratio sensor*1 Clear A/F sensor compensation data EGR volume is affected -
    Automatic transaxle assembly (for U660E)

    • Transaxle compensation code input

    • Road test

    • Rest memory

    		 Large shift shock -

    • Valve body assembly

    • Shift solenoid valve SL3 and/or 4

    • Transaxle compensation code initialize

    • Road test

    • Rest memory

    		 Large shift shock -
    Shift solenoid valve SL1 and/or 2 Road test Large shift shock -
    TCM (If possible, read the transaxle compensation code from the previous TCM) Possible

    • Transaxle compensation code input (Into the new TCM)

    • Reset memory

    • Road test

    		 Large shift shock -
    Impossible

    • Transaxle compensation code initialize

    • Reset memory

    • Road test

    		 Large shift shock
    Millimeter wave radar sensor assembly Adjust millimeter wave radar sensor assembly (Dynamic radar cruise control system)

    • Dynamic radar cruise control system

    • Lane-keeping assist system

    		 -
    Driving support ECU Driving support ECU initialization

    • Dynamic radar cruise control system

    • Lane-keeping assist system

    • Pre-crash safety system

    		 -
    Lane recognition camera sensor assembly Adjust lane recognition camera sensor assembly Lane-keeping assist system -

    for 1AD-FTV


    • Clutch cover assembly

    • Clutch disc assembly

    • Clutch release with bearing cylinder assembly

    • Brake pedal stroke sensor (Clutch pedal stroke sensor).

    • Clutch pedal sub-assembly

    • Clutch master cylinder

    		 Calibration The vehicle may not be able to start off smoothly due to a deviation in the timing of the electric parking brake release of the drive away release function. -

    for 2AD-FTV


    • Clutch cover assembly

    • Clutch disc assembly

    • Clutch release with bearing cylinder assembly

    • Brake pedal stroke sensor (Clutch pedal stroke sensor).

    • Clutch pedal sub-assembly

    • Clutch master cylinder

    		 Calibration The vehicle may not be able to start off smoothly due to a deviation in the timing of the electric parking brake release of the drive away release function. -

    for 2AD-FHV


    • Clutch cover assembly

    • Clutch disc assembly

    • Clutch release with bearing cylinder assembly

    • Brake pedal stroke sensor (Clutch pedal stroke sensor).

    • Clutch pedal sub-assembly

    • Clutch master cylinder

    		 Calibration The vehicle may not be able to start off smoothly due to a deviation in the timing of the electric parking brake release of the drive away release function. -

    • Tire pressure warning ECU and receiver

    • Tire pressure warning valve and transmitter

    • Transmitter ID registration

    • Initialization

    		 Tire pressure warning system -

    • Electric parking brake ECU (Parking brake with bracket actuator assembly)

    • Yaw rate sensor

    • Clutch pedal

    • Brake pedal stroke sensor (Clutch pedal stroke sensor)

    • Brake pedal stroke sensor (Clutch pedal stroke sensor) adjustment

    		 Calibration Electric parking brake system does not operate properly -
    Skid control ECU (Brake actuator assembly) Calibration DTC C1288/88 is output -
    Brake fluid Bleeding air from brake system Brake performance problem -
    Power steering ECU assembly Rotation angle sensor initialization and torque sensor zero point calibration

    • EPS warning light comes on

    • Power assist stops

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

    • Steering lock actuator assembly

    • Certification ECU

    • ID code box

    • Key

    		 Code registration

    • Wireless door lock control system

      (w/ Entry and Start System)

    • Entry operation

    • Engine start

      (w/ Entry and Start System)

    • Steering lock and unlock

    		 Refer to the Service Bulletin for the registration procedure.

    • Transponder key ECU

    • Key

    		 Code registration

    Engine start

    (w/o Entry and Start System)

    		 Refer to the Service Bulletin for the registration procedure.

    • AFS ECU

    • Rear height control sensor

    • AFS ECU registration

    • Rear height control sensor registration

    		 AFS function -

    • Door control receiver assembly

    • Key

    		 Code registration

    Wireless door lock control system

    (w/o Entry and Start System)

    		 -

    • Front door window regulator motor LH

    • Front door window regulator motor RH

    • Rear door window regulator motor LH*2

    • Rear door window regulator motor RH*2

    • Front Door Glass Sub-assembly LH

    • Front Door Glass Sub-assembly RH

    • Rear Door Glass Sub-assembly LH*2

    • Rear Door Glass Sub-assembly RH*2

    • Front Door Glass Run LH

    • Front Door Glass Run RH

    • Rear Door Glass Run LH*2

    • Rear Door Glass Run RH*2

    		 Motor initialization

    • Jam protection function

    • Power window control system

    		 -

    • Sliding roof drive gear

    • Roof shade trim

    		 Roof sunshade system initialization

    • Jam protection function

    • Auto operation

    		 -

    • *1: except CCo

    • *2: w/ Rear Door Power Window