REPAIR INSTRUCTION INITIALIZATION

PROCEDURES NECESSARY WHEN BATTERY TERMINAL IS DISCONNECTED/RECONNECTED

Necessary Procedures	Effect/Inoperative Function When Necessary Procedures are not Performed	Link
Memorize steering angle neutral point	LKA/LDA System	Click here
	Pre-crash safety system
	Lighting system (EXT) Cornering lights
	Adaptive high beam system
Drive the vehicle until stop and start control is permitted (approximately 15 to 60 minutes)	Stop and start system	Click here
Memorize steering angle neutral point	Parking assist monitor system (w/ Parallel parking assist function)	Click here
	Parking assist monitor system (w/o Parallel parking assist function)	Click here
	Panoramic view monitor system	Click here
Initialize back door lock	Power door lock control system	Click here
Reset back door close position	Power back door system	Click here

Note

After the engine switch is turned off, the radio receiver assembly records various types of memory and settings. As a result, after turning the engine switch off, make sure to wait at least 60*1 seconds or 90*2 seconds before disconnecting the cable from the negative (-) battery terminal. (for Audio and Visual System)
After the engine switch is turned off, the radio receiver assembly records various types of memory and settings. As a result, after turning the engine switch off, make sure to wait at least 60 seconds before disconnecting the cable from the negative (-) battery terminal. (for Navigation System)

*1: for 12.3 Inch Display
*2: for 8 Inch Display

PROCEDURES NECESSARY WHEN ECU OR OTHER PARTS ARE REPLACED

Replacement Part		Necessary Procedure	Effect/Inoperative Function when Necessary Procedures are not Performed	Link
ECM		Perform Vehicle Identification Number (VIN) or frame number registration	MIL illuminates / - DTC P063051 is stored	Click here for 8AR-FTS Click here for 2GR-FKS (w/ Canister Pump Module) Click here for 2GR-FKS (w/o Canister Pump Module)
ECM		ECU Communication ID Registration (Immobiliser system)	Engine start function	See Service Bulletin for the registration method.
for 8AR-FTS Piston ring		Clear Heavy Knock History	-	Click here
for 8AR-FTS Throttle body with motor assembly Cleaning the deposits from the 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 assembly (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 Air leaks from intake system Gas leaks from exhaust system Knock control sensor		Inspection After Repair	Poor idle, etc. Engine start function, etc.	Click here
for 2GR-FKS (w/ Canister Pump Module) Throttle body with motor assembly Cleaning the deposits from the 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 (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 Air leaks from intake system Gas leaks from exhaust system Knock control sensor		Inspection After Repair	Poor idle, etc. Engine start function, etc.	Click here
for 2GR-FKS (w/o Canister Pump Module) Throttle body with motor assembly Cleaning the deposits from the 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 (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 Air leaks from intake system Gas leaks from exhaust system Knock control sensor		Inspection After Repair	Poor idle, etc. Engine start function, etc.	Click here
Millimeter wave radar sensor assembly		Adjust millimeter wave radar sensor assembly	Dynamic radar cruise control system Pre-crash safety system Forward recognition camera system LKA/LDA system	Click here
Forward recognition camera Windshield glass		Adjust forward recognition camera	Dynamic radar cruise control system Pre-crash safety system Forward recognition camera system LKA/LDA system Road sign assist system Adaptive high beam system Automatic high beam system	Click here
Engine stop and start ECU*1		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	Stop and start system	Click here
Air conditioning amplifier assembly*1		Reset Air Conditioning Information Learning Air Conditioning Information
Starter assembly*1 Note When the starter assembly is replaced, "ST relay" and "ST NO. 2 relay" must be also replaced.		Clear Number of Starter Operations
Yaw rate and acceleration sensor (airbag sensor assembly)12 Yaw rate and acceleration sensor13		Clear the Zero Point Calibration Data Deceleration Sensor Zero Point Calibration
Battery*1		Integrated Current Value Initialization Switch Battery Type
Automatic transaxle assembly1 Automatic transaxle fluid1		Bleed the oil pump assembly with motor (automatic transaxle assembly)
Automatic transaxle assembly		Perform the following procedures in the order shown: Reset Memory Input Transaxle Compensation Code into ECM Perform Road Test to Allow ECM to Learn	Large shift shock Deterioration of fuel efficiency	Click here for Initialization (U661E) Click here for Registration (U661E) Click here for Initialization (U661F) Click here for Registration (U661F)
Valve body assembly Shift solenoid valve SL3 and/or SL4		Perform the following procedures in the order shown: Reset Memory Reset Transaxle Compensation Code Perform Road Test to Allow ECM to Learn
Shift solenoid valve SL1 and/or SL2		Perform Road Test to Allow ECM to Learn
ECM (If possible, read the transaxle compensation code from the previous ECM)	Possible to read transaxle compensation code	Perform the following procedures in the order shown: Reset Memory Transfer Transaxle Compensation Code Perform Road Test to Allow ECM to Learn
	Impossible to read transaxle compensation code	Perform the following procedures in the order shown: Reset Memory Reset Transaxle Compensation Code Perform Road Test to Allow ECM to Learn
Automatic transaxle assembly		Perform the following procedures in the order shown: Input Transaxle Compensation Code into ECM Perform Road Test to Allow ECM to Learn	Large shift shock Deterioration of fuel efficiency	Click here for Initialization (U881E) Click here for Registration (U881E) Click here for Initialization (U881F) Click here for Registration (U881F)
Valve body assembly Shift solenoid valve SL3, SL4 and/or SL5		Perform the following procedures in the order shown: Reset Transaxle Compensation Code Perform Road Test to Allow ECM to Learn
Shift solenoid valve SL1 and/or SL2		Perform Road Test to Allow ECM to Learn
ECM (If possible, read the transaxle compensation code from the previous ECM)	Possible to read transaxle compensation code	Perform the following procedures in the order shown: Transfer Transaxle Compensation Code Perform Road Test to Allow ECM to Learn
	Impossible to read transaxle compensation code	Perform the following procedures in the order shown: Reset Transaxle Compensation Code Perform Road Test to Allow ECM to Learn
Engine assembly		Perform the following procedures in the order shown: Reset Memory Perform Road Test to Allow ECM to Learn
4WD ECU assembly		Clear zero point calibration data	Dynamic torque control AWD system	Click here
Acceleration sensor (airbag sensor assembly)2 Acceleration sensor (yaw rate sensor assembly)3		Clear zero point calibration data Perform yaw rate and acceleration sensor zero point calibration	Dynamic torque control AWD system	Click here
Absorber control ECU		Perform registration of vehicle identification information	Interrupts damping force control DTCs are stored	Click here
Tire pressure warning ECU and receiver (Electrical key and tire pressure monitoring system receiver assembly)7 Tire pressure warning ECU and receiver (Tire pressure monitoring system receiver assembly)8 Tire pressure warning valve and transmitter		Register Transmitter ID Initialize tire pressure warning system	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	Click here for Registration Click here for Initialization
Skid control ECU (brake actuator assembly)		Operate the electric parking brake switch assembly	Parking brake indicator light (red) blinks when the engine switch is first turned on (IG)	Click here
Skid control ECU (brake actuator assembly)		Perform yaw rate and acceleration sensor zero point calibration and store system information	VSC disabled or malfunctions DTCs are stored Slip indicator light illuminates ABS warning light illuminates Theft deterrent system (tilt sensor)*3	Click here
Yaw rate and acceleration sensor (airbag sensor assembly)2 Yaw rate and acceleration sensor3		Perform the following procedures in the order shown: Clear zero point calibration data and system information Perform yaw rate and acceleration sensor zero point calibration and store system information		Click here
Power steering ECU assembly		Perform Torque Sensor Zero Point Calibration Assist Map Writing	DTCs are stored Steering effort different between turning steering wheel left and right EPS warning light illuminates	Click here
Electric power steering column sub-assembly		Perform Torque Sensor Zero Point Calibration		Click here
Radio receiver assembly4 Telematics transceiver5		Vehicle contract setting	G-BOOK service Emergency call service	Click here for Initialization5 Click here for Initialization6
Radio receiver assembly*4		Download necessary data	Some G-BOOK service content will be unavailable.	Click here for Registration5 Click here for Registration6
Clearance warning ECU assembly		Registration of bumper type	LEXUS parking assist-sensor system	Click here
Ultrasonic sensor (front left sensor, front left center sensor, front right center sensor, front right sensor)		Initialization of ultrasonic sensors (front left sensor, front left center sensor, front right center sensor, front right sensor)
Ultrasonic sensor (rear left sensor, rear left center sensor, rear right center sensor, rear right sensor)		Initialization of ultrasonic sensors (rear left sensor, rear left center sensor, rear right center sensor, rear right sensor)
Radio receiver assembly		Parking assist monitor system initialization	Parking assist monitor system (w/ Parallel parking assist function)	Click here for Initialization Click here for Calibration
Steering sensor		Steering angle neutral point (Initialize parking assist monitor system) Steering angle setting
Suspension, tires, etc.*10 Rear television camera assembly		Rear television camera assembly optical axis (Back camera position setting)
Steering sensor		Steering angle neutral point (Initialize parking assist monitor system) Steering angle setting	Parking assist monitor system (w/o parallel parking assist function)	Click here for Initialization Click here for Calibration
Rear television camera assembly		Parking assist monitor system initialization Rear television camera assembly optical axis (Back camera position setting)
Suspension, tires, etc.*10		Rear television camera assembly optical axis (Back camera position setting)
Blind spot monitor sensor		Blind spot monitor beam axis inspection	DTCs are output	Click here
Steering sensor		Steering angle neutral point (Initialize panoramic view monitor system)	Panoramic view monitor system	Click here for Initialization Click here for Calibration
Parking assist ECU		Parking assist ECU initialization Adjust steering angle
Rear television camera assembly		Rear television camera view adjustment
Front television camera assembly Front bumper assembly Radiator grille		Front television camera view adjustment
Side television camera assembly LH Outer rear view mirror assembly LH Side television camera assembly RH Outer rear view mirror assembly RH		Side television camera view adjustment
Front television camera assembly, front bumper assembly or radiator grille Rear television camera assembly Side television camera assembly LH or outer rear view mirror assembly LH Side television camera assembly RH or outer rear view mirror assembly RH		Television camera view adjustment
Suspension, tires, etc.*10		Parking assist ECU initialization Adjust steering angle
Certification ECU (smart key ECU assembly) ID code box (immobiliser code ECU) Steering lock ECU (steering lock actuator or upper bracket assembly) Electrical key transmitter sub-assembly ECM Main body ECU (multiplex network body ECU) Telematics transceiver		Perform code registration (Immobiliser system)	Wireless door lock control system Entry and start system Engine start function Steering lock system Telematics system	See Service Bulletin for the registration method.
Occupant detection ECU12 Front passenger seat12		Zero point calibration (Occupant classification system)	Occupant classification system Passenger airbag ON/OFF indicator Airbag system (Front passenger side) Seat belt warning system (Front passenger)	Click here
Position control ECU and switch assembly (driver seat) Front seatback frame sub-assembly (driver seat) Front seat adjuster assembly (driver seat) Position control ECU and switch assembly (front passenger seat) Front seatback frame sub-assembly (front passenger seat) Front seat adjuster assembly (front passenger seat)		Initialize position control ECU	Front Power Seat Control System (w/ Memory)	Click here
Fold seat control ECU (for LH side) Fold seat control ECU (for RH side) Rear seatback frame sub-assembly LH Rear seatback frame sub-assembly RH		Initial position memorization	Rear power seat function	Click here
No. 1 air conditioning radiator damper servo sub-assembly No. 2 air conditioning radiator damper servo sub-assembly No. 3 air conditioning radiator damper servo sub-assembly No. 1 blower damper servo sub-assembly Air conditioning amplifier assembly		Initialize servo motor (Air conditioning system)	DTCs are stored	Click here
Door window regulator assembly Power window regulator motor sub-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 Catch protection function Window open warning function	Click here
Sliding roof ECU (sliding roof drive gear sub-assembly) Slide 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	Click here
Sliding roof ECU (sliding roof drive gear) Slide roof housing panel Slide roof rail sub-assembly Sliding roof glass sub-assembly		Initialize panoramic moon roof system (for Sliding Roof)	Auto operation function Jam protection function Key-off operation function Key-linked function Wireless transmitter linked function Sliding roof open warning function	Click here
Roof sunshade ECU (sliding roof drive gear assembly) Sunshade trim sub-assembly Slide roof rail sub-assembly		Initialize panoramic moon roof system (for Roof Sunshade)	Auto operation function Jam protection function Key-off operation function	Click here
Multiplex network door ECU*11		Reset Back Door Close Position	Power back door system	Click here
Headlight ECU sub-assembly LH		Synchronize vehicle information Initialize headlight ECU sub-assembly LH	Adaptive high beam system Automatic headlight beam level control system	Click here
Rear height control sensor sub-assembly RH		Initialize headlight ECU sub-assembly LH
Suspension, tires, etc.*10		Initialize headlight ECU sub-assembly LH

*1: w/ Stop and Start System
*2: w/ Optitron Meter Type
*3: w/ TFT Meter Type
*4: w/ G-BOOK System
*5: w/ Telematics Transceiver
*6: w/o Telematics Transceiver
*7: for Tire Pressure Warning ECU and Receiver Integrated with Electrical Key Receiver
*8: for Tire Pressure Warning ECU and Receiver (Stand Alone)
*9: w/ Panoramic View Monitor System
*10: The vehicle height changes because of suspension or tire replacement
*11: w/ Power Back Door System
*12: w/ Occupant Classification System