Toyota Avalon (XX50) 2019-2022 Service & Repair Manual: Removal

REMOVAL

CAUTION / NOTICE / HINT

The necessary procedures (adjustment, calibration, initialization or registration) that must be performed after parts are removed and installed, or replaced during No. 1 cooler thermistor removal/installation are shown below.

Necessary Procedure After Parts Removed/Installed/Replaced (for Gasoline Model)

Replaced Part or Performed Procedure

Necessary Procedure

Effect/Inoperative Function when Necessary Procedure not Performed

Link

*: When performing learning using the Techstream.

Click here

Disconnect cable from negative battery terminal

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

Steering sensor

Steering angle zero point learning (Initialize intelligent clearance sonar system)

  • Intelligent Clearance Sonar System
  • Intuitive Parking Assist System

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

Parking Assist Monitor System

for Initialization

for Calibration

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

Panoramic View Monitor System

for Initialization

for Calibration

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)

CAUTION:

Some of these service operations affect the SRS airbag system. Read the precautionary notices concerning the SRS airbag system before servicing.

Click here

Necessary Procedure After Parts Removed/Installed/Replaced (for HV Model)

Replaced Part or Performed Procedure

Necessary Procedure

Effect/Inoperative Function When Necessary Procedures are not Performed

Link

*: When performing learning using the Techstream.

Click here

Disconnect cable from negative auxiliary battery terminal

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

Steering sensor

Steering angle zero point learning (Initialize intelligent clearance sonar system)

  • Intelligent Clearance Sonar System
  • Intuitive Parking Assist System

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

Parking Assist Monitor System

for Initialization

for Calibration

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

Panoramic View Monitor System

for Initialization

for Calibration

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)

CAUTION:

Some of these service operations affect the SRS airbag system. Read the precautionary notices concerning the SRS airbag system before servicing.

Click here

PROCEDURE

1. REMOVE BLOWER ASSEMBLY

Click here

2. REMOVE NO. 4 HEATER TO REGISTER DUCT SUB-ASSEMBLY

Click here

3. REMOVE NO. 2 AIR DUCT SUB-ASSEMBLY

Click here

4. REMOVE AIR CONDITIONING HARNESS ASSEMBLY

for 2GR-FKS:

Click here

for A25A-FXS:

Click here

5. REMOVE NO. 1 AIR CONDITIONING RADIATOR DAMPER SERVO SUB-ASSEMBLY

Click here

6. REMOVE HEATER PIPE GROMMET

Click here

7. REMOVE HEATER CLAMP

Click here

8. REMOVE HEATER RADIATOR UNIT SUB-ASSEMBLY

Click here

9. REMOVE COOLING UNIT PARTS

Click here

10. REMOVE COOLER EXPANSION VALVE

Click here

11. REMOVE NO. 1 COOLER EVAPORATOR SUB-ASSEMBLY

for 2GR-FKS:

Click here

for A25A-FXS:

Click here

12. REMOVE NO. 1 COOLER THERMISTOR

(a) for 2GR-FKS:

(1) Remove the No. 1 cooler thermistor.

(b) for A25A-FXS:

(1) Remove the No. 1 cooler thermistor.

    Installation

    Humidity Sensor

    See More:

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    DESCRIPTION There may be a short circuit between one of the CAN bus lines and +B when there is no resistance between terminal 18 (CA4H) of the central gateway ECU (network gateway ECU) and terminal 16 (BAT) of the DLC3, or terminal 17 (CA4L) of the central gateway ECU (network gateway ECU) and termi ...

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