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 Vehicle Identification Number (VIN) registration MIL comes on

    for 8AR-FTS (w/ Canister Pump Module)

    for 2GR-FSE (w/ Canister Pump Module)

    for 2GR-FSE (w/o Canister Pump Module)
    Vehicle Identification Number (VIN) registration MIL comes on / - for 8AR-FTS (w/o Canister Pump Module)
    Heavy Knock History -

    for 8AR-FTS (w/ Canister Pump Module)

    for 8AR-FTS (w/o Canister Pump Module)
    ECU communication ID registration (Immobiliser system) Engine start function See Service Bulletin for the registration method.

      for 8AR-FTS (w/ Canister Pump Module)

    • Piston ring

    		 Clear Heavy Knock History - -

      for 8AR-FTS (w/ Canister Pump Module)

    • 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

    • Port fuel injector assembly

    • Direct fuel injector assembly

    • Fuel pump (for low pressure side)

    • Fuel pump assembly (for high pressure side)

    • Fuel pressure sensor (for low pressure side)

    • Fuel pressure sensor (for high pressure side)

    • Air fuel ratio sensor

    • Heated oxygen sensor

    • Engine coolant temperature sensor

    • Spark plug

    • Ignition coil assembly

    • Intake system parts

    • Exhaust system parts

    • Knock control sensor

    		 Inspection after repair

    • Poor idle, etc.

    • Engine start function, etc.

      for 8AR-FTS (w/o Canister Pump Module)

    • Piston ring

    		 Clear Heavy Knock History - -

      for 8AR-FTS (w/o Canister Pump Module)

    • 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

    • Port fuel injector assembly

    • Direct fuel injector assembly

    • Fuel pump (for low pressure side)

    • Fuel pump assembly (for high pressure side)

    • Fuel pressure sensor (for low pressure side)

    • Fuel pressure sensor (for high pressure side)

    • Air fuel ratio sensor

    • Engine coolant temperature sensor

    • Spark plug

    • Ignition coil assembly

    • Intake system parts

    • Exhaust system parts

    • Knock control sensor

    		 Inspection after repair

    • Poor idle, etc.

    • Engine start function, etc.

      for 2GR-FKS (w/ Canister Pump Module)

    • 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 (for port injection)

    • Fuel injector assembly (for direct injection)

    • Fuel pump (for low pressure side)

    • Fuel pump assembly (for high pressure side)

    • Fuel pressure sensor (Fuel delivery pipe with sensor assembly) (for low pressure side)

    • Fuel pressure sensor (Fuel delivery pipe with sensor assembly LH) (for high pressure side)

    • Air fuel ratio sensor

    • Heated oxygen sensor

    • Engine coolant temperature sensor

    • Spark plug

    • Ignition coil assembly

    • Intake system parts

    • Exhaust system parts

    • Knock control sensor

    		 Inspection after repair

    • Poor idle, etc.

    • Engine start function, etc.

    		 -

      for 2GR-FKS (w/o Canister Pump Module)

    • 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 (for port injection)

    • Fuel injector assembly (for direct injection)

    • Fuel pump (for low pressure side)

    • Fuel pump assembly (for high pressure side)

    • Fuel pressure sensor (Fuel delivery pipe with sensor assembly) (for low pressure side)

    • Fuel pressure sensor (Fuel delivery pipe with sensor assembly LH) (for high pressure side)

    • Air fuel ratio sensor

    • Engine coolant temperature sensor

    • Spark plug

    • Ignition coil assembly

    • Intake system parts

    • Exhaust system parts

    • Knock control sensor

    		 Inspection after repair

    • Poor idle, etc.

    • Engine start function, etc.

    		 -
    Millimeter wave radar sensor assembly Adjust millimeter wave radar sensor assembly

    • Dynamic radar cruise control system

    • Pre-collision system

    • Forward recognition camera system

    • Lane departure alert system (w/ Steering Control)

    • Road sign assist system

    		 -

    • Forward recognition camera

    • Windshield glass

    		 Adjust forward recognition camera

    • Dynamic radar cruise control system

    • Lane departure alert system (w/ Steering Control)

    • Pre-collision system

    • Forward recognition camera system

    • Road sign assist system

    • Automatic high beam system

    		 -
    Engine stop and start ECU*5

    • 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

    • Check oil pump assembly solenoid

    		 Stop and start system -
    Air conditioning amplifier assembly*5

    • Reset Air Conditioning Information

    • Learning Air Conditioning Information

    Starter assembly*5

    Note

    When the starter assembly is replaced, "ST NO. 1 relay" and "ST NO. 2 relay" must be also replaced.

    		 Clear Number of Starter Operations
    Yaw rate and acceleration sensor*5

    • Clear the Zero Point Calibration Data

    • Deceleration Sensor Zero Point Calibration
    Battery*5

    • Integrated Current Value Initialization

    • Switch Battery Type
    Oil pump assembly with solenoid*5 Check oil pump assembly solenoid

      for 8AR-FTS

    • Automatic transmission assembly

    1. Set transmission compensation code (step 1)*1

    2. Perform road test to allow ECM to learn

    • Large shift shock

    • Deterioration of fuel efficiency

    for Initialization

    for Registration

      for 8AR-FTS

    • Transmission valve body assembly

    • Shift solenoid valve SL1, 2, 3, 4 and 5

    		 Perform road test to allow ECM to learn

      for 8AR-FTS

    • ECM

      (If possible, read the transmission compensation code from the previous ECM)

    1. Transfer transmission compensation code (step 2)*6

    2. Perform road test to allow ECM to learn

      for 8AR-FTS

    • ECM

      (If impossible, read the transmission compensation code from the previous ECM)

    1. Set transmission compensation code (step 1)*2

    2. Perform road test to allow ECM to learn

      for 8AR-FTS

    • Engine assembly

    1. Reset memory

    2. Perform road test to allow ECM to learn

      for 2GR-FKS

    • Automatic transmission assembly

    1. Set transmission compensation code (step 1)*1

    2. Perform road test to allow ECM to learn

    • Large shift shock

    • Deterioration of fuel efficiency

    for Initialization

    for Registration

      for 2GR-FKS

    • Transmission valve body assembly

    • Shift solenoid valve SL1, 2, 3, 4 and 5

    		 Perform road test to allow ECM to learn

      for 2GR-FKS

    • ECM

      (If possible, read the transmission compensation code from the previous ECM)

    1. Transfer transmission compensation code (step 2)*6

    2. Perform road test to allow ECM to learn

      for 2GR-FKS

    • ECM

      (If impossible, read the transmission compensation code from the previous ECM)

    1. Set transmission compensation code (step 1)*2

    2. Perform road test to allow ECM to learn

      for 2GR-FKS

    • Engine assembly

    1. Reset memory

    2. Perform road test to allow ECM to learn
    Absorber control ECU Perform registration of vehicle identification information

    • Interrupts damping force control after moving to the 9th step.

    • DTCs are output

    		 -

    • Tire pressure warning ECU and receiver

    • Tire pressure warning valve and transmitter

    • Transmitter ID registration

    • Initialization

    • 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

    for Initialization

    for Registration
    Skid control ECU (brake actuator assembly) Perform yaw rate and acceleration sensor zero point calibration and store system information.

    • VSC disabled or malfunctioning

    • DTCs are output

    • Slip indicator light illuminated

    • ABS warning light illuminated

    • Theft deterrent system (Tilt sensor)

    		 -
    Yaw rate and acceleration sensor

    1. Clearing zero point calibration data and system information.

    2. Perform yaw rate and acceleration sensor zero point calibration and store system information.

    • Power steering ECU assembly

    • Power steering link assembly

    		 Perform rotation angle sensor initialization and torque sensor zero point calibration

    • DTCs are output

    • Steering effort different between turning steering wheel left and right

    		 -
    Power steering ECU assembly Assist map writing

    • DTCs are output

    • EPS warning light illuminated

    • VGRS ECU (front steering control ECU)

    • Steering actuator assembly

    • Parts between the steering wheel and tires have been removed/installed, replaced or adjusted

    		 Perform actuator angle neutral point calibration and initialization

    • Variable gear ratio steering system

    • Steering wheel off-center

    • DTCs are output

    		 -
    DRS ECU (rear steering control ECU) Perform neutral position memorization and motor rotation angle sensor calibration

    • Dynamic rear steering system

    • Steering wheel off-center

    • DTCs are output

    		 -
    Rear steering link assembly or rear suspension have been removed/installed, replaced, or adjusted

    • Perform actuator calibration value initialization

    • Perform neutral position memorization and motor rotation angle sensor calibration

    		 Steering wheel off-center

    • Radio receiver assembly*9

    • Navigation ECU*8

    • Telematics transceiver*8

    		 Vehicle contract setting

    • G-BOOK service

    • Emergency call service

    *8

    *9

    • Radio receiver assembly*7

    • Navigation ECU*8

    		 Download necessary data Some G-BOOK service content will be unavailable.

    *8

    *9
    Telematics transceiver*10 Register vehicle information Emergency call service -
    Mobilephone battery*10 Reset mobilephone battery condition
    Spiral cable with sensor sub-assembly

    • Steering angle neutral point (Initialize parking assist monitor system)

    • Steering angle setting

    		 Parking assist monitor system (w/o Parallel parking assist function)

    for Initialization

    for Registration
    Rear television camera assembly

    • Parking assist monitor system initialization

    • Rear television camera assembly optical axis (Back camera position setting)
    Suspension, tires, etc. Rear television camera assembly optical axis (Back camera position setting)
    Blind spot monitor sensor Blind spot monitor beam axis adjustment DTCs are output -

    • Inner rear view mirror assembly

    • Garage door opener transmitter

    Re-registration of codes in the garage door opener system


    • Register transmitter code

    • Rolling code systems

    		 Garage door opener system -

    • Certification ECU (smart key ECU assembly)

    • ID code box (immobiliser code ECU)

    • Steering lock ECU (steering lock actuator assembly)

    • ECM

    • Main body ECU (multiplex network body ECU)

    • Electrical key transmitter sub-assembly

    		 Code registration (Immobiliser system)

    • Wireless door lock control system

    • Entry and start system

    • Engine start

    • Steering lock system

    		 See Service Bulletin for the registration method.

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

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

    • No. 2 air conditioning radiator damper servo sub-assembly (front passenger side)

    • No. 3 air conditioning radiator damper servo sub-assembly

    • No. 4 air conditioning radiator damper servo sub-assembly

    • No. 5 air conditioning radiator damper servo sub-assembly

    • No. 6 air conditioning radiator damper servo sub-assembly*5

    • No. 1 blower damper servo sub-assembly

    		 Initialization servo motor (Air conditioning system) DTCs are output -

    • Door window regulator assembly

    • Door 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

    • Window open warning function

    • Catch protection function

    • Door-linked window control

    		 -

    • Sliding roof ECU (sliding roof drive gear sub-assembly)

    • Sliding roof glass sub-assembly

    • Sliding roof drive cable sub-assembly

    		 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

    		 -
    Headlight leveling ECU assembly*3

    1. Synchronize the vehicle information

    2. Perform headlight leveling ECU assembly initialization

    		 Headlight leveling function -
    Headlight light control ECU sub-assembly LH*4

    1. Synchronize the vehicle information

    2. Perform headlight light control ECU sub-assembly LH initialization

    		 -
    Rear height control sensor sub-assembly Perform headlight leveling ECU assembly initialization*3 -
    Perform headlight light control ECU sub-assembly LH initialization*4 -