Last Modified: 08-21-2023 6.11:8.1.0 Doc ID: RM100000001YKOV
Model Year Start: 2022 Model: Avalon HV Prod Date Range: [08/2021 -           ]
Title: P710 (HYBRID TRANSMISSION / TRANSAXLE): OIL COOLER: REMOVAL; 2022 MY Avalon HV [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 motor cooling cooler removal/installation are shown below.

Necessary Procedures 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 HV [04/2018 -        ]; PARK ASSIST / MONITORING: INTELLIGENT CLEARANCE SONAR SYSTEM (for HV Model): CALIBRATION

Auxiliary battery terminal is disconnected/reconnected

Perform steering sensor zero point calibration

Lane Tracing Assist System

2022 MY Avalon Avalon HV [08/2021 -        ]; PRE-COLLISION: PRE-COLLISION SYSTEM: INITIALIZATION

Pre-collision System

Intelligent clearance sonar system*

Lighting system (w/ AFS)(EXT)

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

Replacement of ECM

Perform Vehicle Identification Number (VIN) registration

MIL illuminates

2019 - 2022 MY Avalon HV [04/2018 -        ]; A25A-FXS (ENGINE CONTROL): SFI SYSTEM: REGISTRATION

Replacement of 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

2021 - 2022 MY Avalon HV [08/2020 -        ]; HYBRID / BATTERY CONTROL: MOTOR GENERATOR CONTROL SYSTEM (for LITHIUM-ION BATTERY): UTILITY

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 2022 MY Avalon HV [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

  • If the ECM has been struck or dropped, replace it.
  • Perform Vehicle Identification Number (VIN) registration when replacing the ECM.

    Click here 2019 - 2022 MY Avalon HV [04/2018 -        ]; A25A-FXS (ENGINE CONTROL): SFI SYSTEM: REGISTRATION

PROCEDURE

1. REMOVE FRONT WHEEL OPENING EXTENSION PAD RH

Click here 2022 MY Avalon HV [08/2021 -        ]; A25A-FXS (ENGINE MECHANICAL): ENGINE ASSEMBLY: REMOVAL+

2. REMOVE FRONT WHEEL OPENING EXTENSION PAD LH

Click here 2022 MY Avalon HV [08/2021 -        ]; A25A-FXS (ENGINE MECHANICAL): ENGINE ASSEMBLY: REMOVAL+

3. REMOVE NO. 1 ENGINE UNDER COVER

Click here 2022 MY Avalon HV [08/2021 -        ]; A25A-FXS (ENGINE MECHANICAL): ENGINE ASSEMBLY: REMOVAL+

4. REMOVE NO. 2 ENGINE UNDER COVER ASSEMBLY

Click here 2022 MY Avalon HV [08/2021 -        ]; A25A-FXS (ENGINE MECHANICAL): ENGINE ASSEMBLY: REMOVAL+

5. REMOVE FRONT FENDER APRON SEAL LH

Click here 2022 MY Avalon HV [08/2021 -        ]; A25A-FXS (ENGINE MECHANICAL): ENGINE ASSEMBLY: REMOVAL+

6. REMOVE INVERTER WITH CONVERTER ASSEMBLY

Click here 2022 MY Avalon HV [08/2021 -        ]; HYBRID / BATTERY CONTROL: INVERTER WITH CONVERTER: REMOVAL

7. REMOVE NO. 1 INVERTER COOLING HOSE

(a) Slide the clip and remove the No. 1 inverter cooling hose from the motor cooling cooler.

8. DISCONNECT NO. 5 INVERTER COOLING HOSE

Click here 2022 MY Avalon HV [08/2021 -        ]; A25A-FXS (ENGINE MECHANICAL): ENGINE ASSEMBLY: REMOVAL+

9. REMOVE MOTOR COOLING COOLER

(a) Remove the oil cooler union bolt and gasket to disconnect the No. 2 motor cooling pipe from the hybrid vehicle transaxle assembly.

*1

Oil Cooler Union Bolt

*2

No. 1 Oil Cooler Tube Clamp

(b) Remove the bolt and No. 1 oil cooler tube clamp to disconnect the No. 2 motor cooling pipe from the hose bracket.

(c) Remove the 3 bolts to disconnect the motor cooling cooler from the No. 1 transmission control cable bracket.

(d) Slide the clip and disconnect the No. 1 motor cooling hose from the transaxle housing tube connector.

NOTICE:

Make sure not to remove the No. 1 motor cooling hose from the motor cooling cooler as the motor cooling cooler may be deformed.

10. REMOVE NO. 2 MOTOR COOLING PIPE

(a) Slide the clip and remove the No. 2 motor cooling pipe from the No. 2 motor cooling hose.

NOTICE:

Make sure not to remove the No. 2 motor cooling hose from the motor cooling cooler as the motor cooling cooler may be deformed.