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 or Inoperative Function when Necessary Procedure is not Performed Note
    ECM

    • Learning values save

    • Learning values write

    • Vehicle Identification Number (VIN) registration

    • Engine starting

    • DTC P0630 is output

    		 -

      for RC61F:

    • Performing iMT installation information reset

    • iMT system

    • DTCs are output

    		 -
    Code registration (Immobiliser system) Engine start function See the Service Bulletin for the registration method.
    Injector assembly

    • Injector compensation code registration

    • Pilot quantity learning

    		 Engine starting -
    Engine assembly

    • Injector compensation code registration

    • Pilot quantity learning

    		 Engine starting -
    Clear Crank Time Compensation Data Engine starting -
    Crankshaft angle sensor plate 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 Clear A/F Sensor Compensation data - -
    Exhaust manifold converter sub-assembly Clear DPF Thermal Deterioration Data - -

    • Diesel throttle body assembly

    • Electric EGR control valve assembly

    • Turbocharger sub-assembly

    • Turbocharger nozzle vane control actuator

    		 Perform initialization - -

      AC60F:

    • Automatic transmission assembly

    • Transmission valve body assembly

    • Any of the shift solenoid valves

    		 Reset memory

    • Large shift shock

    • Engine overruns

    		 -

      AC60F:

    • Automatic transmission fluid

    		 ATF thermal degradation estimate reset The value of the Data List item "ATF Thermal Degradation Estimate" is not estimated correctly -
    Skid control ECU (Brake actuator assembly) Yaw rate and acceleration sensor zero point calibration and store system information

    • DTCs are output

    • ABS warning light illumination

    • Slip indicator light illumination

    • VSC disable or malfunctioning

    		 -
    Yaw rate and acceleration sensor (airbag sensor assembly)

    • Clearing zero point calibration data

    • Yaw rate and acceleration sensor zero point calibration
    Air conditioning amplifier assembly Servo motor initialization DTCs are output -

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

    • No. 1 blower damper servo sub-assembly

    		 Servo motor initialization DTCs are output -

      w/ Smart Entry and Start System:

    • Certification ECU (smart key ECU assembly)

    • Steering lock ECU (steering lock actuator assembly)

    • Electrical key transmitter sub-assembly

    		 Code registration

    • Wireless door lock control system

    • Smart entry and start system

    • Immobiliser system

    • Steering lock system

    		 Refer to the Service Bulletin for the registration procedure.

      w/o Smart Entry and Start System:

    • Key

    • Transponder key ECU assembly

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

      w/o Smart Entry and Start System:

    • Door control transmitter assembly

    • Door control receiver

    		 Recognition code registration Wireless door lock control system -

    • Power window regulator motor assembly

    • Door window regulator assembly

    • Door glass

    • Door glass run

    		 Initialize power window control system

    • Jam protection function

    • Power window control system

    • Auto up and down function

    • Remote control function

    • Key-off operation function

    • Catch protection function

    		 -
    Multiplex network door ECU Reset Back Door Close Position Power back door system -
    Body ECU Initialize automatic light control system Automatic light control system -

    • Headlight leveling ECU assembly

    • Rear height control sensor sub-assembly LH

    • The vehicle height changes due to replacement of suspension components or after performing such operations as removal and reinstallation

    		 Headlight leveling ECU assembly initialization Headlight leveling function -
    Front wheel alignment adjustment

    • Clearing zero point calibration data

    • Yaw rate and acceleration sensor zero point calibration

    		 VSC malfunctioning -