Last Modified: 08-21-2023 6.11:8.1.0 Doc ID: RM100000001QM08
Model Year Start: 2021 Model: Avalon Prod Date Range: [08/2020 - 08/2021]
Title: HEATING / AIR CONDITIONING: AIR CONDITIONING UNIT (for Gasoline Model): REMOVAL; 2021 MY Avalon [08/2020 - 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 air conditioning unit removal/installation are shown below.

Necessary Procedure After Parts Removed/Installed/Replaced

Replaced Part or Performed Procedure

Necessary Procedure

Effect/Inoperative Function when Necessary Procedure not Performed

Link

*: When performing learning using the Techstream.

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

Disconnect cable from negative battery terminal

Perform steering sensor zero point calibration

Lane Departure Alert System (w/ Steering Control)

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

Pre-collision System

Intelligent Clearance Sonar System*

Lighting System (for Gasoline Model with Cornering Light)

Memorize steering angle neutral point

Parking Assist Monitor System

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

Panoramic View Monitor System

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

Steering sensor

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

  • Intelligent Clearance Sonar System
  • Intuitive Parking Assist System

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

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

Parking Assist Monitor System

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

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

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

Panoramic View Monitor System

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

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

2019 - 2022 MY Avalon [04/2018 -        ]; SUPPLEMENTAL RESTRAINT SYSTEMS: OCCUPANT CLASSIFICATION SYSTEM (for Gasoline Model): INITIALIZATION

CAUTION:

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

Click here 2021 - 2022 MY Avalon [08/2020 -        ]; SUPPLEMENTAL RESTRAINT SYSTEMS: AIRBAG SYSTEM (for Gasoline Model): PRECAUTION

PROCEDURE

1. PRECAUTION

NOTICE:

Make sure to select face mode before disconnecting the cable from the negative (-) battery terminal.

2. RECOVER REFRIGERANT FROM REFRIGERATION SYSTEM

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

3. REMOVE WINDSHIELD WIPER MOTOR AND LINK ASSEMBLY

Click here 2019 - 2022 MY Avalon Avalon HV [04/2018 -        ]; WIPER / WASHER: FRONT WIPER MOTOR: REMOVAL

4. REMOVE FRONT CENTER UPPER SUSPENSION BRACE SUB-ASSEMBLY

Click here 2021 MY Avalon [08/2020 - 08/2021]; BRAKE CONTROL / DYNAMIC CONTROL SYSTEMS: BRAKE ACTUATOR (for Gasoline Model): REMOVAL+

5. DISCONNECT OUTLET HEATER WATER HOSE (for 2GR-FKS)

(a) Using pliers, grip the claws of the clip and slide the clip to disconnect the outlet heater water hose.

NOTICE:

  • Do not apply excessive force to the outlet heater water hose.
  • Prepare a drain pan or cloth in case the coolant leaks.

6. DISCONNECT OUTLET HEATER WATER HOSE (for A25A-FKS)

(a) Using pliers, grip the claws of the clip and slide the clip to disconnect the outlet heater water hose.

NOTICE:

  • Do not apply excessive force to the outlet heater water hose.
  • Prepare a drain pan or cloth in case the coolant leaks.

7. DISCONNECT INLET HEATER WATER HOSE (for 2GR-FKS)

(a) Using pliers, grip the claws of the clip and slide the clip to disconnect the inlet heater water hose.

NOTICE:

  • Do not apply excessive force to the inlet heater water hose.
  • Prepare a drain pan or cloth in case the coolant leaks.

8. DISCONNECT INLET HEATER WATER HOSE (for A25A-FKS)

(a) Using pliers, grip the claws of the clip and slide the clip to disconnect the inlet heater water hose.

NOTICE:

  • Do not apply excessive force to the inlet heater water hose.
  • Prepare a drain pan or cloth in case the coolant leaks.

9. DISCONNECT NO. 2 AIR CONDITIONING TUBE AND ACCESSORY ASSEMBLY (for 2GR-FKS)

(a) Remove the bolt and rotate the hook connector as shown in the illustration.

(b) Disconnect the No. 2 air conditioning tube and accessory assembly.

(c) Remove the 2 O-rings from the No. 2 air conditioning tube and accessory assembly.

NOTICE:

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

10. DISCONNECT SUCTION PIPE SUB-ASSEMBLY (for A25A-FKS)

(a) Remove the bolt and rotate the hook connector as shown in the illustration.

(b) Disconnect the suction pipe sub-assembly.

(c) Remove the O-ring from the suction pipe sub-assembly.

NOTICE:

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

11. DISCONNECT AIR CONDITIONING TUBE AND ACCESSORY ASSEMBLY (for A25A-FKS)

(a) Disconnect the air conditioning tube and accessory assembly.

(b) Remove the O-ring from the air conditioning tube and accessory assembly.

NOTICE:

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

12. REMOVE FRONT SEAT ASSEMBLY LH

Click here 2021 MY Avalon Avalon HV [08/2020 - 08/2021]; SEAT: FRONT SEAT ASSEMBLY: REMOVAL

13. REMOVE FRONT SEAT ASSEMBLY RH

HINT:

Use the same procedure as for the LH side.

14. REMOVE TRANSMISSION FLOOR SHIFT ASSEMBLY

Click here 2019 - 2022 MY Avalon [04/2018 -        ]; UA80E (AUTOMATIC TRANSMISSION / TRANSAXLE): SHIFT LEVER: REMOVAL

15. REMOVE STEERING COLUMN ASSEMBLY

for Manual Tilt and Manual Telescopic Steering Column:

Click here 2019 - 2021 MY Avalon Avalon HV [04/2018 - 08/2021]; STEERING COLUMN: STEERING COLUMN ASSEMBLY (for Manual Tilt and Manual Telescopic Steering Column): REMOVAL

for Power Tilt and Power Telescopic Steering Column:

Click here 2019 - 2021 MY Avalon Avalon HV [04/2018 - 08/2021]; STEERING COLUMN: STEERING COLUMN ASSEMBLY (for Power Tilt and Power Telescopic Steering Column): REMOVAL

16. REMOVE INSTRUMENT PANEL SAFETY PAD SUB-ASSEMBLY

Click here 2019 - 2021 MY Avalon Avalon HV [04/2018 - 08/2021]; INTERIOR PANELS / TRIM: INSTRUMENT PANEL SAFETY PAD: REMOVAL

17. REMOVE ECU INTEGRATION BOX RH

Click here 2019 - 2021 MY Avalon Avalon HV [04/2018 - 08/2021]; NETWORKING: NETWORK GATEWAY ECU: REMOVAL+

18. REMOVE STEREO COMPONENT EQUALIZER ASSEMBLY (w/ Active Noise Control System)

Click here 2019 - 2021 MY Avalon Avalon HV [04/2018 - 08/2021]; AUDIO / VIDEO: ACTIVE NOISE CONTROL ECU: REMOVAL+

19. REMOVE DCM (TELEMATICS TRANSCEIVER) WITH BRACKET

Click here 2021 - 2022 MY Avalon Avalon HV [08/2020 -        ]; CELLULAR COMMUNICATION: DCM(TELEMATICS TRANSCEIVER): REMOVAL+

20. REMOVE NO. 1 CLEARANCE WARNING BUZZER (w/ Intelligent Parking Assist System)

Click here 2019 - 2022 MY Avalon Avalon HV [04/2018 -        ]; PARK ASSIST / MONITORING: CLEARANCE WARNING BUZZER (for Front): REMOVAL+

21. REMOVE DRIVING SUPPORT ECU ASSEMBLY

Click here 2019 - 2021 MY Avalon Avalon HV [04/2018 - 08/2021]; CRUISE CONTROL: DRIVING SUPPORT ECU: REMOVAL+

22. REMOVE COOLER (ROOM TEMP. SENSOR) THERMISTOR

Click here 2020 - 2021 MY Avalon HV [08/2019 - 08/2021]; HEATING / AIR CONDITIONING: AIR CONDITIONING UNIT (for HV Model): REMOVAL+

23. REMOVE ACCELERATOR PEDAL PAD

for 2GR-FKS:

Click here 2019 - 2022 MY Avalon [04/2018 -        ]; 2GR-FKS (ENGINE CONTROL): ACCELERATOR PEDAL: REMOVAL+

for A25A-FKS:

Click here 2021 - 2022 MY Avalon [08/2020 -        ]; A25A-FKS (ENGINE CONTROL): ACCELERATOR PEDAL: REMOVAL+

24. REMOVE ACCELERATOR PEDAL

for 2GR-FKS:

Click here 2019 - 2022 MY Avalon [04/2018 -        ]; 2GR-FKS (ENGINE CONTROL): ACCELERATOR PEDAL: REMOVAL+

for A25A-FKS:

Click here 2021 - 2022 MY Avalon [08/2020 -        ]; A25A-FKS (ENGINE CONTROL): ACCELERATOR PEDAL: REMOVAL+

25. REMOVE REAR NO. 2 AIR DUCT

Click here 2020 - 2021 MY Avalon HV [08/2019 - 08/2021]; HEATING / AIR CONDITIONING: AIR CONDITIONING UNIT (for HV Model): REMOVAL+

26. REMOVE REAR NO. 1 AIR DUCT

Click here 2020 - 2021 MY Avalon HV [08/2019 - 08/2021]; HEATING / AIR CONDITIONING: AIR CONDITIONING UNIT (for HV Model): REMOVAL+

27. REMOVE REAR NO. 4 AIR DUCT

Click here 2020 - 2021 MY Avalon HV [08/2019 - 08/2021]; HEATING / AIR CONDITIONING: AIR CONDITIONING UNIT (for HV Model): REMOVAL+

28. REMOVE REAR NO. 3 AIR DUCT

Click here 2020 - 2021 MY Avalon HV [08/2019 - 08/2021]; HEATING / AIR CONDITIONING: AIR CONDITIONING UNIT (for HV Model): REMOVAL+

29. REMOVE FLOOR CARPET BRACKET RH

Click here 2020 - 2021 MY Avalon HV [08/2019 - 08/2021]; HEATING / AIR CONDITIONING: AIR CONDITIONING UNIT (for HV Model): REMOVAL+

30. REMOVE FLOOR CARPET BRACKET LH

Click here 2020 - 2021 MY Avalon HV [08/2019 - 08/2021]; HEATING / AIR CONDITIONING: AIR CONDITIONING UNIT (for HV Model): REMOVAL+

31. REMOVE NO. 1 CONSOLE BOX DUCT

Click here 2020 - 2021 MY Avalon HV [08/2019 - 08/2021]; HEATING / AIR CONDITIONING: AIR CONDITIONING UNIT (for HV Model): REMOVAL+

32. REMOVE NO. 3 DASH PANEL INSULATOR PAD

Click here 2020 - 2021 MY Avalon HV [08/2019 - 08/2021]; HEATING / AIR CONDITIONING: AIR CONDITIONING UNIT (for HV Model): REMOVAL+

33. REMOVE NO. 1 INSTRUMENT PANEL BRACE SUB-ASSEMBLY

(a) Remove the bolt and disconnect the earth wire.

*a

Earth Wire

(b) Disengage each clamp.

(c) Remove the bolt, screw, nut and No. 1 instrument panel brace sub-assembly.

Bolt

Screw

Nut

34. REMOVE NO. 2 INSTRUMENT PANEL BRACE SUB-ASSEMBLY

Click here 2020 - 2021 MY Avalon HV [08/2019 - 08/2021]; HEATING / AIR CONDITIONING: AIR CONDITIONING UNIT (for HV Model): REMOVAL+

35. REMOVE NO. 3 INSTRUMENT PANEL TO COWL BRACE SUB-ASSEMBLY

Click here 2020 - 2021 MY Avalon HV [08/2019 - 08/2021]; HEATING / AIR CONDITIONING: AIR CONDITIONING UNIT (for HV Model): REMOVAL+

36. REMOVE 4WD ECU ASSEMBLY (for AWD)

Click here 2021 - 2022 MY Avalon [08/2020 -        ]; GF1A (TRANSFER / 4WD / AWD): 4WD CONTROL ECU: REMOVAL+

37. REMOVE INSTRUMENT PANEL JUNCTION BLOCK ASSEMBLY WITH MAIN BODY ECU

Click here 2019 - 2021 MY Avalon Avalon HV [04/2018 - 08/2021]; POWER DISTRIBUTION: MAIN BODY ECU: REMOVAL+

38. REMOVE INSTRUMENT PANEL REINFORCEMENT ASSEMBLY WITH AIR CONDITIONER UNIT ASSEMBLY

NOTICE:

  • Be sure to support the air conditioner unit assembly when removing it. Failure to do so may cause the bracket of the air conditioner unit assembly to break.
  • When disassembling the air conditioner unit assembly, eliminate static electricity by touching the vehicle body to prevent the components from being damaged.

(a) Disconnect the connector.

*a

Earth Wire

*b

Connector Holder

Connector

Bolt

Nut

-

-

(b) Remove the 3 bolts and disconnect the 3 earth wires.

(c) Remove the 2 nuts and disconnect the connector holder.

(d) Disengage each clamp.

(e) Push down the part (A) in the direction indicated by the arrow (1), to release the lock, and then move the lock lever in the direction indicated by the arrow (2) shown in the illustration to disconnect the connector.

Release (1)

Move in this Direction (2)

NOTICE:

When disconnecting any airbag connector, take care not to damage the airbag wire harness.

(f) Disconnect the connector.

(g) Disengage each clamp to separate the instrument panel wire.

(h) Turn back the front floor mat as shown in the illustration.

(i) Disconnect the drain cooler hose.

NOTICE:

If the drain cooler hose is disconnected from the cooler unit drain hose grommet, make sure to replace the cooler unit drain hose grommet with a new one. Failure to do so may lead to water ingress.

*1

Cooler Unit Drain Hose Grommet

(j) Remove the cooler unit drain hose grommet.

(k) Remove the 2 hole plugs.

(l) Remove the 3 bolts.

(m) Remove the 4 bolts (A).

Bolt (A)

Bolt (B)

Nut

-

-

(n) Remove the bolt (B) and disconnect the brake pedal assembly.

(o) Remove the nut.

(p) Disengage each clamp.

Remove in this Direction

-

-

(q) Disconnect each connector.

(r) Remove the instrument panel reinforcement assembly with air conditioner unit assembly as shown in the illustration.

39. REMOVE AIR CONDITIONER UNIT ASSEMBLY

Click here 2020 - 2021 MY Avalon HV [08/2019 - 08/2021]; HEATING / AIR CONDITIONING: AIR CONDITIONING UNIT (for HV Model): REMOVAL+