Toyota Avalon Service & Repair Manual: Initialization

INITIALIZATION

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

Necessary Procedures

Effect/Inoperative Function When Necessary Procedures are not Performed

Link

Perform steering sensor zero point calibration

Lane Departure Alert System (w/ Steering Control)

Pre-collision System

Intelligent Clearance Sonar System*

Lighting System (for HV Model with Cornering Light)

Memorize steering angle neutral point

Parking Assist Monitor System

Panoramic View Monitor System

*: When performing learning using the Techstream.

Click here

NOTICE:

  • After the power switch is turned off, the radio and display 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 and display 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)

Necessary Procedures

Effect/Inoperative Function When Necessary Procedures are not Performed

Link

Perform steering sensor zero point calibration

Lane Departure Alert System (w/ Steering Control)

Pre-collision System

Intelligent Clearance Sonar System*

Lighting System (for Gasoline Model with Cornering Light)

Memorize steering angle neutral point

Parking Assist Monitor System

Panoramic View Monitor System

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

*: When performing learning using the Techstream.

Click here

NOTICE:

  • After the engine switch is turned off, the radio and display 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 and display 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 or Performed Procedure

Necessary Procedure

Effect/Inoperative Function when Necessary Procedures are not Performed

Link

ECM

Perform Vehicle Identification Number (VIN) registration

MIL illuminates

  • Throttle body with motor assembly
  • Cleaning the deposits from the 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 leaks from intake system
  • Gas leaks from exhaust system
  • 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
  • Front Camera System
  • Lane Departure Alert System (w/ Steering Control)
  • Pre-collision System
  • Lighting System (EXT)

  • Forward recognition camera
  • Windshield glass

Adjust forward recognition camera

  • Dynamic Radar Cruise Control System
  • Front Camera System
  • Lane Departure Alert System (w/ Steering Control)
  • Pre-collision System
  • Lighting System (EXT)

  • 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 (electric parking brake switch assembly)

Parking brake indicator light 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 intelligent clearance sonar system)

  • Intelligent Clearance Sonar System
  • Intuitive Parking Assist System

  • 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 Initialization

for Calibration

Suspension, tires, etc.*1

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

Television camera assembly

  • Parking assist monitor system initialization
  • Television camera assembly optical axis adjustment (Back camera position setting)

Steering sensor

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

Panoramic View Monitor System

for Initialization

for Calibration

Parking assist ECU

  • Parking assist ECU initialization
  • Adjust steering angle

Television camera assembly

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

Suspension, tires, etc.*1

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

Blind spot monitor sensor

Blind spot monitor beam axis adjustment

  • Intelligent Clearance Sonar System
  • 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)
  • Electrical key transmitter sub-assembly
  • Hybrid vehicle control ECU assembly
  • Main body ECU (multiplex network body ECU)
  • DCM (telematics transceiver)

Code registration (Smart key System (for Start Function))

  • Wireless Door Lock Control System
  • Smart Key System (for Entry Function)
  • Smart Key System (for Start Function)
  • Steering lock function

  • 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)

  • Separate type front seat cushion spring assembly LH
  • Front seatback frame sub-assembly LH
  • Position control ECU assembly

Initialize position control ECU

Front Power Seat Control System

  • 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 glass sub-assembly
  • Sliding roof drive cable sub-assembly
  • Sliding roof drive gear 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 assembly LH
  • Headlight ECU sub-assembly LH

Synchronize the vehicle information

Lighting system (for HV Model with Cornering Light)

  • Swing grill actuator assembly
  • Radiator shutter sub-assembly

Change grille shutter control mode and/or perform initialization

Grille Shutter System

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

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

*3: w/ Garage Door Opener System

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

Replaced Part or Performed Procedure

Necessary Procedure

Effect/Inoperative Function when Necessary Procedures are not Performed

Link

ECM

Vehicle Identification Number (VIN) registration

MIL comes on

ECU communication ID registration (Immobiliser system)

Engine start function

  • 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.

Millimeter wave radar sensor assembly

Adjust millimeter wave radar sensor assembly

  • Dynamic Radar Cruise Control System
  • Front Camera System
  • Lane Departure Alert System (w/ Steering Control)
  • Pre-collision System
  • Lighting System (EXT)

  • Forward recognition camera
  • Windshield glass

Adjust forward recognition camera

  • Dynamic Radar Cruise Control System
  • Front Camera System
  • Lane Departure Alert System (w/ Steering Control)
  • Pre-collision System
  • Lighting System (EXT)

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

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)
  • Yaw rate and acceleration sensor (airbag sensor assembly)

Perform system variant learning and acceleration sensor zero point calibration

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

Skid control ECU (brake actuator assembly)

Operate the electric parking brake switch (electric parking brake switch assembly)

Parking brake indicator light 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 intelligent clearance sonar system)

  • Intelligent Clearance Sonar System
  • Intuitive Parking Assist System

  • 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 Initialization

for Calibration

Suspension, tires, etc.*2

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

Television camera assembly

  • Parking assist monitor system initialization
  • Television camera assembly optical axis adjustment (Back camera position setting)

Steering sensor

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

Panoramic View Monitor System

for Initialization

Calibration

Parking assist ECU

  • Parking assist ECU initialization
  • Adjust steering angle

Television camera assembly

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

Suspension, tires, etc.*2

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

Blind spot monitor sensor

Blind spot monitor beam axis adjustment

  • Intelligent Clearance Sonar System
  • 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)
  • Electrical key transmitter sub-assembly
  • ECM
  • Main body ECU (multiplex network body ECU)
  • DCM (telematics transceiver)

Code registration (Smart Key System (for Start Function))

  • Wireless Door Lock Control System
  • Smart Key System (for Entry Function)
  • Smart Key System (for Start Function)
  • Steering lock function

  • 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)

  • Separate type front seat cushion spring assembly LH
  • Front seatback frame sub-assembly LH
  • Position control ECU assembly

Initialize position control ECU

Front Power Seat Control System

  • 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 (for Automatic 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 glass sub-assembly
  • Sliding roof drive cable sub-assembly
  • Sliding roof drive gear 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 assembly LH
  • Headlight ECU sub-assembly LH

Synchronize the vehicle information

Lighting system (for Gasoline Model with Cornering Light)

  • *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 television camera assembly.
    Customize Parameters

    Inspection Mode Procedure

    See More:

    Toyota Avalon Service & Repair Manual > Safety Connect System(for Gasoline Model): Manual Button Malfunction (B15C5)
    DESCRIPTION This DTC is set when the DCM (Telematics Transceiver) detects an open or short circuit in the manual (SOS) switch. DTC No. Detection Item DTC Detection Condition Trouble Area B15C5 Manual Button Malfunction Open or short circuit in manual (SOS) switch is detected. DCM (Telematics Transce ...

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    Toyota Avalon Service & Repair Manual

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