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
    ECM*1,*2

    • Learning values save

    • Learning values write

    		 - -
    Injector Assembly*1,*2 Injector Compensation - -
    Fuel Supply Pump Assembly*1,*2 Supply Pump Learning Value Reset - -
    Exhaust Manifold Converter Sub-assembly (Catalytic Converter)*1,*2

    • DPF History Information Reset

    • NOx Storage Catalyst Learning Value Reset

    		 - -
    Air Fuel Ratio Sensor*1,*2 O2 Sensor Learning Value Reset - -
    Mass Air Flow Meter*1,*2 Air Flow Meter Learning Value Reset - -
    EGR Valve Assembly*1,*2 EGR Learning Value Reset - -
    Differential Pressure Sensor*1,*2 Differential Pressure Learning Value Reset - -
    Swirl Control Valve*1,*2 Swirl Valve Learning Value Reset - -
    Pressure Discharge Valve*1,*2 Fuel PCV Compensation Value Reset - -
    Turbo Pressure Sensor Assembly*1,*2 Upstream Turbine Pressure Learning Value Reset - -
    Engine assembly*1,*2 Injector Compensation - -
    Engine stop and start ECU

    • Upload the number of starter operations

    • Reset air conditioning information

    • Clear the deceleration sensor zero point calibration data

    • Perform zero point calibration of the deceleration sensor

    		 Stop and start system -

    Starter assembly

    Note

    When the starter assembly is replaced, "ST relay" must be also replaced.

    		 Clear the number of the starter operations Stop and start system -
    Air conditioning amplifier assembly

    • Reset air conditioning information

    • Learning of the air conditioning information

    		 Stop and start system -

    • 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) Perform system variant learning and acceleration sensor zero point calibration

    • VSC disabled or malfunctioning

    • DTCs are output

    • Slip indicator light illuminates

    • ABS warning light illuminates

    		 -
    Yaw rate and acceleration sensor (yaw rate sensor)

    1. Clear zero point calibration data

    2. Perform system variant learning and acceleration sensor zero point calibration

    		 -
    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.

    • Door control receiver assembly

    • Key

    		 Code registration

    Wireless door lock control system

    (w/o Entry and Start System)

    		 -
    Pre-crash safety city sensor

    • Preparation for pre-crash safety city sensor camera axis learning

    • Perform pre-crash safety city sensor camera axis learning

    • Lane departure alert system

    • Pre-crash safety system

    • Automatic high beam system

    • Road sign assist system

    		 -

    • Sliding roof drive gear

    • Roof shade trim

    		 Roof sunshade system initialization

    • Jam protection function

    • Auto operation

    		 -

    • Front door window regulator motor LH

    • Front door window regulator motor RH

    • Rear door window regulator motor LH*3

    • Rear door window regulator motor RH*3

    • Front Door Glass Sub-assembly LH

    • Front Door Glass Sub-assembly RH

    • Rear Door Glass Sub-assembly LH*3

    • Rear Door Glass Sub-assembly RH*3

    • Front Door Glass Run LH

    • Front Door Glass Run RH

    • Rear Door Glass Run LH*3

    • Rear Door Glass Run RH*3

    		 Motor initialization

    • Jam protection function

    • Power window control system

    		 -

      w/ AFS:

    • Headlight Leveling ECU Assembly

    • The vehicle height changes due to replacement of suspension components or after performing such operations as removal and reinstallation or replacement of the rear height control sensor sub-assembly

    		 Headlight leveling ECU assembly initialization Headlight leveling function -

      w/o AFS:

    • Headlight Swivel ECU Assembly

    • The vehicle height changes due to replacement of suspension components or after performing such operations as removal and reinstallation or replacement of the rear height control sensor sub-assembly

    		 Headlight swivel ECU assembly initialization Headlight swivel function -

    • *1: for 1WW

    • *2: for 2WW

    • *3: w/ Rear Door Power Window