Last Modified: 08-21-2023 6.11:8.1.0 Doc ID: RM100000001AYY0
Model Year Start: 2019 Model: Avalon HV Prod Date Range: [04/2018 - 08/2021]
Title: HEATING / AIR CONDITIONING: COMPRESSOR (for A25A-FXS): REMOVAL; 2019 - 2021 MY Avalon HV [04/2018 - 08/2021]

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 compressor with motor assembly removal/installation are shown below.

Necessary Procedure After Parts Removed/Installed/Replaced

Replaced Part or Performed Procedure

Necessary Procedures

Effect/Inoperative Function when Necessary Procedure not Performed

Link
*1: When performing learning using the Techstream.

Click here 2019 - 2022 MY Avalon HV [04/2018 -        ]; PARK ASSIST / MONITORING: INTELLIGENT CLEARANCE SONAR SYSTEM (for HV Model): CALIBRATION

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

Disconnect cable from negative auxiliary battery terminal

Perform steering sensor zero point calibration

Lane departure alert system (w/ Steering Control)

2019 - 2021 MY Avalon HV [04/2018 - 08/2021]; PRE-COLLISION: PRE-COLLISION SYSTEM (for HV Model): INITIALIZATION

Pre-collision system

Intelligent clearance sonar system*1

Lighting system (for Gasoline Model with Cornering Light)

Memorize steering angle neutral point

Parking assist monitor system

2019 - 2022 MY Avalon HV [04/2018 -        ]; PARK ASSIST / MONITORING: PARKING ASSIST MONITOR SYSTEM(for HV Model): INITIALIZATION

Panoramic view monitor system

2019 - 2022 MY Avalon HV [04/2018 -        ]; PARK ASSIST / MONITORING: PANORAMIC VIEW MONITOR SYSTEM (for HV Model): INITIALIZATION

Front television camera assembly, front bumper assembly or radiator grille
  • Television camera view adjustment
  • Television camera assembly optical axis adjustment (Back camera position setting)*2

Panoramic view monitor system

2019 - 2022 MY Avalon HV [04/2018 -        ]; PARK ASSIST / MONITORING: PANORAMIC VIEW MONITOR SYSTEM (for HV Model): INITIALIZATION for Initialization

2019 - 2022 MY Avalon HV [04/2018 -        ]; PARK ASSIST / MONITORING: PANORAMIC VIEW MONITOR SYSTEM (for HV Model): CALIBRATION for Calibration

Front bumper assembly
  • Measurement of ultrasonic sensor detection angle
  • Ultrasonic sensor detection angle registration
  • Intelligent clearance sonar system
  • Intuitive parking assist system

2019 - 2022 MY Avalon HV [04/2018 -        ]; PARK ASSIST / MONITORING: INTELLIGENT CLEARANCE SONAR SYSTEM (for HV Model): CALIBRATION

  • Headlight assembly
  • Headlight ECU sub-assembly

Synchronize the vehicle information

Lighting system (for HV Model with Cornering Light)

2019 - 2022 MY Avalon HV [04/2018 -        ]; LIGHTING (EXT): LIGHTING SYSTEM (for HV Model with Cornering Light): INITIALIZATION

  • Swing grill actuator assembly
  • Radiator shutter sub-assembly

Change grille shutter control mode and/or perform initialization

Grille Shutter System

2019 - 2021 MY Avalon Avalon HV [04/2018 - 08/2021]; EXTERIOR PANELS / TRIM: GRILLE SHUTTER SYSTEM: INITIALIZATION

CAUTION:

  • Orange wire harnesses and connectors indicate high-voltage circuits. To prevent electric shock, always follow the procedure described in the repair manual.

    Click here 2019 - 2020 MY Avalon HV [04/2018 - 08/2020]; HYBRID / BATTERY CONTROL: HYBRID CONTROL SYSTEM (for NICKEL METAL HYDRIDE BATTERY): PRECAUTION 2021 MY Avalon HV [08/2020 - 08/2021]; HYBRID / BATTERY CONTROL: HYBRID CONTROL SYSTEM (for LITHIUM-ION BATTERY): PRECAUTION

  • To prevent electric shock, wear insulated gloves when working on wire harnesses and components of the high voltage system.

NOTICE:

After turning the power switch off, waiting time may be required before disconnecting the cable from the negative (-) auxiliary battery terminal. Therefore, make sure to read the disconnecting the cable from the negative (-) auxiliary battery terminal notices before proceeding with work.

Click here 2019 - 2022 MY Avalon Avalon HV [04/2018 -        ]; INTRODUCTION: REPAIR INSTRUCTION: PRECAUTION

PROCEDURE

1. RECOVER REFRIGERANT FROM REFRIGERATION SYSTEM

Click here 2019 - 2022 MY Avalon Avalon HV [04/2018 -        ]; HEATING / AIR CONDITIONING: REFRIGERANT: REPLACEMENT+

2. REMOVE SERVICE PLUG GRIP

Click here 2019 - 2020 MY Avalon HV [04/2018 - 08/2020]; HYBRID / BATTERY CONTROL: SERVICE PLUG GRIP: REMOVAL 2021 MY Avalon HV [08/2020 - 08/2021]; HYBRID / BATTERY CONTROL: SERVICE PLUG GRIP: REMOVAL

3. CHECK TERMINAL VOLTAGE

(a) Disconnect the engine room main wire.

Click here 2019 - 2020 MY Avalon HV [04/2018 - 08/2020]; HYBRID / BATTERY CONTROL: FRAME WIRE: REMOVAL+ 2021 MY Avalon HV [08/2020 - 08/2021]; HYBRID / BATTERY CONTROL: FRAME WIRE: REMOVAL+

(b) Remove the connector cover assembly.

Click here 2019 - 2020 MY Avalon HV [04/2018 - 08/2020]; HYBRID / BATTERY CONTROL: INVERTER WITH CONVERTER: REMOVAL+ 2021 MY Avalon HV [08/2020 - 08/2021]; HYBRID / BATTERY CONTROL: INVERTER WITH CONVERTER: REMOVAL+

(c) Check the terminal voltage.

Click here 2019 - 2020 MY Avalon HV [04/2018 - 08/2020]; HYBRID / BATTERY CONTROL: INVERTER WITH CONVERTER: REMOVAL+ 2021 MY Avalon HV [08/2020 - 08/2021]; HYBRID / BATTERY CONTROL: INVERTER WITH CONVERTER: REMOVAL+

(d) Install the connector cover assembly.

Click here 2019 - 2020 MY Avalon HV [04/2018 - 08/2020]; HYBRID / BATTERY CONTROL: HV BATTERY (for NICKEL METAL HYDRIDE BATTERY): REMOVAL+ 2021 MY Avalon HV [08/2020 - 08/2021]; HYBRID / BATTERY CONTROL: HV BATTERY (for LITHIUM-ION BATTERY): REMOVAL+

(e) Connect the engine room main wire.

Click here 2019 - 2020 MY Avalon HV [04/2018 - 08/2020]; HYBRID / BATTERY CONTROL: FRAME WIRE: INSTALLATION+ 2021 - 2022 MY Avalon HV [08/2020 -        ]; HYBRID / BATTERY CONTROL: FRAME WIRE: INSTALLATION+

4. REMOVE RADIATOR ASSEMBLY

Click here 2019 - 2021 MY Avalon HV [04/2018 - 08/2021]; A25A-FXS (COOLING): RADIATOR: REMOVAL

5. DISCONNECT SUCTION HOSE SUB-ASSEMBLY

(a) Remove the bolt and disconnect the suction hose sub-assembly from the compressor with motor assembly.

(b) Remove the O-ring from the suction hose sub-assembly.

NOTICE:

Seal the openings of the disconnected parts using vinyl tape to prevent moisture and foreign matter from entering them.

6. DISCONNECT NO. 1 COOLER REFRIGERANT DISCHARGE HOSE SUB-ASSEMBLY

(a) Remove the bolt and disconnect the No. 1 cooler refrigerant discharge hose sub-assembly from the compressor with motor assembly.

(b) Remove the O-ring from the No. 1 cooler refrigerant discharge hose sub-assembly.

NOTICE:

Seal the openings of the disconnected parts using vinyl tape to prevent moisture and foreign matter from entering them.

7. REMOVE COMPRESSOR WITH MOTOR ASSEMBLY

(a) Using a screwdriver, slide the green-colored lock of the connector (A) as shown in the illustration to release it and disconnect the connector.

*a

Connector (A)

*b

Connector (B)

*c

Green-colored Lock

Slide

CAUTION:

Make sure to wear insulated gloves.

NOTICE:

Insulate the disconnected terminals and connector with insulating tape.

(b) Disconnect the connector (B).

(c) Remove the bolt and 2 nuts.

Bolt

Nut

(d) Using an E8 "TORX" socket wrench, remove the 2 stud bolts and compressor with motor assembly.