Lexus ES manuals

Lexus ES: Initialization

INITIALIZATION

PROCEDURES NECESSARY WHEN CABLE IS DISCONNECTED/RECONNECTED TO NEGATIVE (-) AUXILIARY BATTERY TERMINAL (for HV Model)

Necessary Procedure

Effect/Inoperative Function when Necessary Procedure not Performed

Link

*: When performing learning using the Techstream.

Click here

Perform steering sensor zero point calibration

Lane Control System (for HV Model)

Pre-collision System (for HV Model)

Parking Support Brake System (for HV Model)*

Lighting System (for HV Model)

Memorize steering angle neutral point

Parking Assist Monitor System (for HV Model)

Panoramic View Monitor System (for HV Model)

Initialize power trunk lid system

Power Trunk Lid System (for HV Model)

NOTICE:

  • After the power switch is turned off, the radio receiver assembly records various types of memory and settings. As a result, after turning the power switch off, make sure to wait at least 85 seconds before disconnecting the cable from the negative (-) auxiliary battery terminal. (for Audio and Visual System)
  • After the power switch is turned off, the radio receiver assembly records various types of memory and settings. As a result, after turning the power switch off, make sure to wait at least 85 seconds before disconnecting the cable from the negative (-) auxiliary battery terminal. (for Navigation System)

PROCEDURES NECESSARY WHEN CABLE IS DISCONNECTED/RECONNECTED TO NEGATIVE (-) AUXILIARY BATTERY TERMINAL (for Gasoline Model)

Necessary Procedure

Effect/Inoperative Function when Necessary Procedure not Performed

Link

*: When performing learning using the Techstream.

Click here

Perform steering sensor zero point calibration

Lane Control System (for Gasoline Model)

Pre-collision System (for Gasoline Model)

Parking Support Brake System (for Gasoline Model)*

Lighting System (for Gasoline Model)

Memorize steering angle neutral point

Parking Assist Monitor System (for Gasoline Model)

Panoramic View Monitor System (for Gasoline Model)

Initialize power trunk lid system

Power Trunk Lid System (for Gasoline Model)

NOTICE:

  • 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 85 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 85 seconds before disconnecting the cable from the negative (-) battery terminal. (for Navigation System)

PROCEDURES NECESSARY WHEN ECU OR OTHER PARTS ARE REPLACED (for HV Model)

Replaced Part

Necessary Procedure

Effect/Inoperative Function when Necessary Procedure not Performed

Link

*1: If the vehicle height has changed due to suspension or tire replacement.

*2: Only necessary when rear television camera assembly has been removed/installed or replaced.

*3: w/ Garage Door Opener System

*4: for LED type turn signal light

*5: for TMC Made

*6: for TMMK Made

*7: One Time Recognition

*8: Sequential Recognition

ECM

Perform Vehicle Identification Number (VIN) registration

MIL illuminates

  • Throttle body with motor assembly
  • Cam timing control motor with EDU assembly
  • Camshaft timing gear assembly
  • Engine assembly
  • Cylinder head sub-assembly
  • Camshaft (for intake or exhaust camshaft)
  • 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)
  • No.2 fuel pressure sensor (for low pressure side)
  • Fuel pressure sensor (for high pressure side)
  • Air fuel ratio sensor (sensor 1)
  • Air fuel ratio sensor (sensor 2)
  • Engine coolant temperature sensor
  • Spark plug
  • Ignition coil assembly
  • EGR valve assembly
  • Air intake system parts
  • Exhaust system parts
  • Knock control sensor

Inspection after repair

  • Poor idle, etc.
  • Engine start function, etc.

Inverter with converter assembly

Resolver learning

  • DTCs are stored
  • Slight vibration at a vehicle speed of 5 km/h (3 mph) or less
  • Shock or vibration during acceleration

Hybrid vehicle transaxle assembly

  • Resolver learning
  • Initialize resolver

HV battery

Battery status info update

HV battery status information cannot be updated

Hybrid battery terminal block

High voltage fuse accumulated load history reset

DTCs are stored

Millimeter wave radar sensor assembly

Adjust millimeter wave radar sensor assembly

  • Dynamic Radar Cruise Control System (for HV Model)
  • Lane Control System (for HV Model)
  • Road Sign Assist System (for HV Model)
  • Front Radar Sensor System (for HV Model)
  • Pre-collision System (for HV Model)
  • Lighting System (EXT)

  • Forward recognition camera
  • Windshield glass

Adjust forward recognition camera

  • Dynamic Radar Cruise Control System (for HV Model)
  • Front Camera System (for HV Model)
  • Lane Control System (for HV Model)
  • Road Sign Assist System (for HV Model)
  • Pre-collision System (for HV Model)
  • Lighting System (EXT)

*7

or

*8

  • Tire pressure warning ECU and receiver (Electrical key and tire pressure monitoring system receiver assembly)
  • 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

for Registration

for Initialization

  • Skid control ECU (Brake booster with master cylinder assembly)
  • Brake actuator assembly
  1. Bleed air
  2. Clear the data stored during previous linear solenoid valve offset learning, ABS holding solenoid valve learning, brake pedal stroke sensor assembly zero point calibration and system information memorization
  3. Perform linear solenoid valve offset learning, ABS holding solenoid valve learning, brake pedal stroke sensor assembly zero point calibration and system information memorization
  • DTCs are stored
  • ABS warning light illuminates
  • Brake warning light / yellow (minor malfunction) illuminates
  • Slip indicator light illuminates
  • VSC disabled or malfunctions

for Initialization

for Calibration

  • Brake pedal stroke sensor assembly
  • Brake pedal
  1. Clear the data stored during previous linear solenoid valve offset learning, ABS holding solenoid valve learning, brake pedal stroke sensor assembly zero point calibration and system information memorization
  2. Perform linear solenoid valve offset learning, ABS holding solenoid valve learning, brake pedal stroke sensor assembly zero point calibration and system information memorization
  • Skid control ECU (Brake booster with master cylinder assembly)
  • Yaw rate and acceleration sensor (Airbag ECU assembly)
  1. Clear zero point calibration data
  2. Perform yaw rate and acceleration sensor zero point calibration

Parking Brake ECU (brake actuator assembly)

Operate the electric parking brake switch assembly

Parking brake indicator light (red) blinks when the power switch is first turned on (IG)

Rack and pinion power steering gear assembly

  • Perform torque sensor zero point calibration
  • Assist map writing
  • DTCs are output
  • Steering effort different between turning steering wheel left and right
  • EPS warning light illuminates

DCM (telematics transceiver)

DCM activation

Safety Connect System

Back-up battery

Perform the reset back-up battery condition

Steering sensor

Steering angle zero point learning (Initialize parking support brake system)

  • Parking Support Alert System (for HV Model)
  • Parking Support Brake System (for HV Model)

  • Suspension, tires, etc.*1
  • Front bumper assembly
  • Rear bumper assembly
  • Ultrasonic sensor
  • Measure ultrasonic sensor detection angle
  • Ultrasonic sensor detection angle registration

Clearance warning ECU assembly

  • Measure ultrasonic sensor detection angle
  • Steering angle zero point learning
  • Register bumper type
  • Register ultrasonic sensor detection angle

Steering sensor

  • Steering angle zero point learning (Initialize parking assist monitor system)
  • Steering angle setting

Parking Assist Monitor System (for HV Model)

for Initialization

for Calibration

Suspension, tires, etc.*1

Rear television camera assembly optical axis adjustment (Back camera position setting)

Rear television camera assembly

  • Parking assist monitor system initialization
  • Rear television camera assembly optical axis (Back camera position setting)

Steering sensor

Steering angle zero point learning (Initialize panoramic view monitor system)

Panoramic View Monitor System (for HV Model)

for Initialization

for Calibration

Parking assist ECU

  • Parking assist ECU initialization
  • Adjust steering angle

Rear television camera assembly

  • Rear television camera view adjustment
  • Rear television camera assembly optical axis (Back camera position setting)
  • 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
  • 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
  • Rear television camera assembly optical axis (Back camera position setting)*2

Suspension, tires, etc.*1

  • Parking assist ECU initialization
  • Adjust steering angle
  • Rear television camera assembly optical axis (Back camera position setting)

Blind spot monitor sensor

Blind spot monitor beam axis adjustment

  • Parking Support Brake System (for HV Model)
  • Blind Spot Monitor System (for HV Model)

Inner rear view mirror assembly*3

Register codes in the garage door opener system

Garage Door Opener System

  • Certification ECU (smart key ECU assembly)
  • Steering lock ECU (steering lock actuator or upper bracket assembly)
  • ID code box (immobiliser code ECU)
  • Electrical key transmitter sub-assembly
  • Hybrid vehicle control ECU
  • Main body ECU (multiplex network body ECU)
  • DCM (telematics transceiver)

Code registration (Smart access system with push-button start (for Start Function, HV Model))

  • Wireless Door Lock Control System
  • Smart Access System with Push-button Start (for Entry Function, HV Model)
  • Smart Access System with Push-button Start (for Start Function, HV Model)
  • Steering lock function
  • Telematics System

  • Occupant detection ECU
  • Front passenger seat

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)

  • Front seat adjuster assembly LH*5
  • Separate type front seat cushion spring assembly LH*6
  • Front seatback frame sub-assembly LH
  • Lifter motor (power seat lifter motor assembly LH)*5
  • Front vertical motor (power seat tilt motor assembly LH)*5
  • Position control ECU assembly

Initialize position control ECU

Front Power Seat Control System (w/ Memory)

  • 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

Servo motor initialization (Air conditioning system)

DTCs are stored

  • 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

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

Luggage closer motor assembly

Initialize power trunk lid system

Power Trunk Lid System

Headlight ECU sub-assembly LH

  • Synchronize the vehicle information
  • Perform headlight ECU sub-assembly LH initialization*4

Lighting system (for HV Model)

  • Rear height control sensor sub-assembly LH
  • Suspension, tires, etc.*1

Perform headlight ECU sub-assembly LH initialization*4

  • Swing grill actuator assembly
  • Radiator shutter sub-assembly

Change grille shutter control mode and/or perform initialization

Grille Shutter System

PROCEDURES NECESSARY WHEN ECU OR OTHER PARTS ARE REPLACED (for Gasoline Model)

Replaced Part

Necessary Procedure

Effect/Inoperative Function when Necessary Procedure not Performed

Link

*1: Not necessary when ECM replaced with new one.

*2: If the vehicle height has changed due to suspension or tire replacement.

*3: w/ Garage Door Opener System

*4: Applies only for when removing and installing or replacing the rear television camera assembly.

*5: for LED Type Turn Signal Light

*6: w/ Adaptive Variable Suspension System

*7: for TMC Made

*8: for TMMK Made

*9: One time Recognition

*10: Sequential Recognition

*11: for Bulb Type Turn Signal Light, TMMK Made

ECM

Vehicle Identification Number (VIN) registration

MIL comes on

ECU communication ID registration (Immobiliser system)

Engine start function

  • 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
  • Air 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 (for Gasoline Model)
  • Lane Control System (for Gasoline Model)
  • Road Sign Assist System (for Gasoline Model)
  • Front Radar Sensor System (for Gasoline Model)
  • Pre-collision System (for Gasoline Model)
  • Lighting System (EXT)

  • Forward recognition camera
  • Windshield glass

Adjust forward recognition camera

  • Dynamic Radar Cruise Control System (for Gasoline Model)
  • Front Camera System (for Gasoline Model)
  • Lane Control System (for Gasoline Model)
  • Road Sign Assist System (for Gasoline Model)
  • Pre-collision System (for Gasoline Model)
  • Lighting System (EXT)

*9

or

*10

Automatic transaxle assembly

  • Perform reset memory
  • Input transaxle compensation code into ECM
  • Perform road test to allow ECM to learn
  • Large shift shock
  • Deterioration of fuel efficiency

for Initialization

for Registration

  • Transmission valve body assembly
  • Solenoid (SL1, SL2, SL3, SL4, SL5 and/or SL6) valve
  • Perform reset memory
  • Reset transaxle compensation code
  • Perform road test to allow ECM to learn

ECM

(If transaxle compensation code read from ECM)

  • Perform reset memory*1
  • Transfer transaxle compensation code
  • Perform road test to allow ECM to learn

ECM

(If transaxle compensation code not read from ECM)

  • Perform reset memory*1
  • Reset transaxle compensation code
  • Perform road test to allow ECM to learn

Automatic transaxle fluid

ATF thermal degradation estimate reset

The value of the Data List item "ATF Thermal Degradation Estimate" is not estimated correctly

Absorber control ECU*6

Registration of Vehicle Identification Information

  • Interrupts damping force control
  • DTCs are stored

  • Tire pressure warning ECU and receiver (electrical key and tire pressure monitoring system receiver assembly)
  • 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

for Registration

for Initialization

Skid control ECU (brake actuator assembly)

Perform acceleration sensor zero point calibration and store system information memorization.

  • VSC is disabled or malfunctions
  • DTCs are output
  • Slip indicator light illuminates
  • ABS warning light illuminates

Yaw rate and acceleration sensor (airbag ECU assembly)

  • Perform "Reset Memory"
  • Perform acceleration sensor zero point calibration and store system information memorization

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)

Rack and pinion power steering gear assembly

  • Perform torque sensor zero point calibration
  • Assist map writing
  • DTCs are output
  • Steering effort different between turning steering wheel left and right
  • EPS warning light illuminates

DCM (telematics transceiver)

DCM activation

Safety Connect System

Back-up battery

Perform the reset back-up battery condition

Steering sensor

Steering angle zero point learning (Initialize parking support brake system)

  • Parking Support Alert System (for Gasoline Model)
  • Parking Support Brake System (for Gasoline Model)

  • Suspension, tires, etc.*2
  • Front bumper assembly
  • Rear bumper assembly
  • Ultrasonic sensor
  • Measure ultrasonic sensor detection angle
  • Ultrasonic sensor detection angle registration

Clearance warning ECU assembly

  • Measure ultrasonic sensor detection angle
  • Steering angle zero point learning
  • Register bumper type
  • Register ultrasonic sensor detection angle

Steering sensor

  • Steering angle zero point learning (Initialize parking assist monitor system)
  • Steering angle setting

Parking Assist Monitor System (for Gasoline Model)

for Initialization

for Calibration

Suspension, tires, etc.*2

Rear television camera assembly optical axis adjustment (Back camera position setting)

Rear television camera assembly

  • Parking assist monitor system initialization
  • Rear television camera assembly optical axis (Back camera position setting)

Steering sensor

Steering angle zero point learning (Initialize panoramic view monitor system)

Panoramic View Monitor System (for Gasoline Model)

for Initialization

Calibration

Parking assist ECU

  • Parking assist ECU initialization
  • Adjust steering angle

Rear television camera assembly

  • Rear television camera view adjustment
  • Rear television camera assembly optical axis (Back camera position setting)
  • 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
  • Rear television camera assembly optical axis (Back camera position setting)*4

Suspension, tires, etc.*2

  • Parking assist ECU initialization
  • Adjust steering angle
  • Rear television camera assembly optical axis (Back camera position setting)

Blind spot monitor sensor

Blind spot monitor beam axis adjustment

  • Parking Support Brake System (for Gasoline Model)
  • Blind Spot Monitor System

  • Inner rear view mirror assembly*3

Register codes in the garage door opener system

Garage Door Opener System

  • Certification ECU (smart key ECU assembly)
  • Steering lock ECU (steering lock actuator or upper bracket assembly)
  • ID code box (immobiliser code ECU)
  • Electrical key transmitter sub-assembly
  • ECM
  • Main body ECU (multiplex network body ECU)
  • DCM (telematics transceiver)

Code registration (Smart access system with push-button start (for Start Function, Gasoline Model))

  • Wireless Door Lock Control System
  • Smart Access System with Push-button Start (for Entry Function, Gasoline Model)
  • Smart Access System with Push-button Start (for Start Function, Gasoline Model)
  • Steering lock function
  • Telematics System

  • Occupant detection ECU
  • Front passenger seat

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)

  • Front seat adjuster assembly LH*7
  • Separate type Front seat cushion spring assembly LH*8
  • Front seatback frame sub-assembly LH
  • Lifter motor (power seat lifter motor assembly LH)*7
  • Front vertical motor (power seat tilt motor assembly LH)*7
  • Position control ECU assembly

Initialize position control ECU

Front Power Seat Control System (w/ Memory)

  • No. 1 air conditioning radiator damper servo sub-assembly
  • No. 2 air conditioning radiator damper servo sub-assembly
  • No. 1 blower damper servo sub-assembly
  • Air conditioning amplifier assembly

Servo motor initialization (Air conditioning system)

DTCs are output

  • Door window regulator sub-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

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

  • 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

  • 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)

  • Sliding roof open warning function
  • Auto operation function
  • Jam protection function
  • Key-off operation function

Luggage closer motor assembly

Initialize power trunk lid system

Power Trunk Lid System

  • Headlight ECU sub-assembly LH
  • Headlight assembly LH*11
  • Synchronize the vehicle information
  • Perform headlight ECU sub-assembly LH initialization*5

Lighting System (for Gasoline Model)

  • Rear height control sensor sub-assembly LH
  • Suspension, tires, etc.*2

Perform headlight ECU sub-assembly LH initialization*5

READ NEXT:

 Inspection Mode Procedure

INSPECTION MODE PROCEDURE INSPECTION MODE (for HV Model) NOTICE: When operating the vehicle in an inspection mode for an operation such as a speedometer test, a DTC may be stored. Therefore, if t

 Terms

 Abbreviations Used In Manual

ABBREVIATIONS USED IN MANUAL Abbreviation Meaning ABS Anti-Lock Brake System A/C Air Conditioner AC

SEE MORE:

 Components

COMPONENTS ILLUSTRATION *1 NO. 1 OIL NOZZLE SUB-ASSEMBLY *2 NO. 2 OIL NOZZLE SUB-ASSEMBLY *3 CRANKSHAFT *4 CRANKSHAFT THRUST WASHER *5 OIL SEPARATOR GASKET *6 CRANKSHAFT BEARING *7 CRANKSHAFT BEARING CAP SET BOLT *8 CONNECTING ROD BOLT *9 CONNECTING ROD

 Remote Control System does not Operate

DESCRIPTION The main body ECU (multiplex network body ECU) receives remote control signals from the driver door key cylinder or electrical key transmitter sub-assembly. Then, the main body ECU (multiplex network body ECU) activates the power window motor and sends the remote control signals to the s

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