Last Modified: 08-21-2023 6.11:8.1.0 Doc ID: RM100000001AYBR
Model Year Start: 2019 Model: Avalon HV Prod Date Range: [04/2018 - 08/2019]
Title: HEATING / AIR CONDITIONING: AIR CONDITIONING UNIT (for HV Model): REMOVAL; 2019 MY Avalon HV [04/2018 - 08/2019]

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 Procedures are not Performed

Link
*: 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

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*

Lighting System (for HV 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

Steering sensor

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

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

Parking Assist Monitor System

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

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

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

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

PROCEDURE

1. PRECAUTION

NOTICE:

Make sure to select face mode before disconnecting the cable from the negative (-) auxiliary 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 2019 - 2020 MY Avalon [04/2018 - 08/2020]; BRAKE CONTROL / DYNAMIC CONTROL SYSTEMS: BRAKE ACTUATOR (for Gasoline Model): REMOVAL+

5. DISCONNECT OUTLET HEATER WATER HOSE

(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 INLET HEATER WATER HOSE

(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.

7. DISCONNECT SUCTION PIPE SUB-ASSEMBLY

(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.

8. DISCONNECT AIR CONDITIONING TUBE AND ACCESSORY ASSEMBLY

(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.

9. REMOVE FRONT SEAT ASSEMBLY LH

Click here 2019 - 2020 MY Avalon Avalon HV [04/2018 - 08/2020]; SEAT: FRONT SEAT ASSEMBLY: REMOVAL

10. REMOVE FRONT SEAT ASSEMBLY RH

HINT:

Use the same procedure as for the LH side.

11. REMOVE TRANSMISSION FLOOR SHIFT ASSEMBLY

Click here 2019 - 2022 MY Avalon HV [04/2018 -        ]; P710 (HYBRID TRANSMISSION / TRANSAXLE): SHIFT LEVER: REMOVAL

12. 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

13. 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

14. REMOVE ECU INTEGRATION BOX RH

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

15. REMOVE VEHICLE APPROACHING SPEAKER CONTROLLER

Click here 2019 - 2020 MY Avalon Avalon HV [04/2018 - 08/2020]; VEHICLE PROXIMITY NOTIFICATION SYSTEM: VEHICLE APPROACHING SPEAKER ECU: REMOVAL+

16. REMOVE DCM (TELEMATICS TRANSCEIVER) WITH BRACKET

Click here 2019 - 2020 MY Avalon Avalon HV [04/2018 - 08/2020]; CELLULAR COMMUNICATION: DCM(TELEMATICS TRANSCEIVER): REMOVAL+

17. 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+

18. REMOVE DRIVING SUPPORT ECU ASSEMBLY

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

19. REMOVE COOLER (ROOM TEMP. SENSOR) THERMISTOR

(a) Disconnect the connector and aspirator to remove the cooler (room temp. sensor) thermistor.

20. REMOVE ACCELERATOR PEDAL PAD

Click here 2019 - 2022 MY Avalon HV [04/2018 -        ]; HYBRID / BATTERY CONTROL: ACCELERATOR PEDAL SENSOR: REMOVAL+

21. REMOVE ACCELERATOR PEDAL

Click here 2019 - 2022 MY Avalon HV [04/2018 -        ]; HYBRID / BATTERY CONTROL: ACCELERATOR PEDAL SENSOR: REMOVAL+

22. REMOVE REAR NO. 2 AIR DUCT

(a) Remove the front floor carpet clip.

(b) Remove the 2 front floor carpet clips.

(c) Disengage the 2 guides and turn back the front floor carpet assembly as shown in the illustration.

(d) Disengage the 4 claws and remove the rear No. 2 air duct as shown in the illustration.

Remove in this Direction

23. REMOVE REAR NO. 1 AIR DUCT

(a) Disengage the 2 claws and remove the rear No. 1 air duct.

24. REMOVE REAR NO. 4 AIR DUCT

(a) Remove the front floor carpet clip.

(b) Remove the 2 front floor carpet clips.

(c) Disengage the 2 guides and turn back the front floor carpet assembly as shown in the illustration.

(d) Disengage the 4 claws and remove the rear No. 4 air duct as shown in the illustration.

Remove in this Direction

25. REMOVE REAR NO. 3 AIR DUCT

(a) Disengage the 2 claws and remove the rear No. 3 air duct.

26. REMOVE FLOOR CARPET BRACKET RH

(a) Remove the clip.

Remove in this Direction

(b) Disengage the claw to remove the floor carpet bracket RH as shown in the illustration.

27. REMOVE FLOOR CARPET BRACKET LH

(a) Remove the clip.

Remove in this Direction

(b) Disengage the claw to remove the floor carpet bracket LH as shown in the illustration.

28. REMOVE NO. 1 CONSOLE BOX DUCT

(a) Remove the No. 1 console box duct as shown in the illustration.

Remove in this Direction

29. REMOVE NO. 3 DASH PANEL INSULATOR PAD

(a) Cut each claw of the 2 clips and remove the No. 3 dash panel insulator pad.

NOTICE:

If the No. 3 dash panel insulator pad is damaged, replace it with a new one.

*a

Cut

(b) Remove the 2 clips.

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

(a) Remove the 2 bolts and disconnect the 2 earth wires.

*a

Earth Wire

(b) Disengage each clamp.

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

Bolt

Screw

Nut

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

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

*a

Earth Wire

*b

Relay Block Holder

Bolt (A)

Bolt (B)

(b) Remove the bolt (B).

(c) Disengage each clamp to separate the relay block holder.

(d) Remove the bolt, screw, nut and No. 2 instrument panel brace sub-assembly.

Bolt

Screw

Nut

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

(a) Disengage each clamp.

Bolt

Nut

(b) Remove the bolt, nut and No. 3 instrument panel to cowl brace sub-assembly.

33. REMOVE HYBRID VEHICLE CONTROL ECU

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

34. 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+

35. 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 2 connectors.

*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.

36. REMOVE AIR CONDITIONER UNIT ASSEMBLY

(a) Remove the 3 bolts.

(b) Disengage the 2 claws and remove the air conditioner unit assembly from the instrument panel reinforcement assembly.