Last Modified: 08-21-2023 6.11:8.1.0 Doc ID: RM100000001AFX2
Model Year Start: 2019 Model: Avalon HV Prod Date Range: [04/2018 - 08/2020]
Title: REAR SUSPENSION: REAR SHOCK ABSORBER: REMOVAL; 2019 - 2020 MY Avalon Avalon HV [04/2018 - 08/2020]

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 rear shock absorber assembly removal/installation are shown below.

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

Replaced Part or Performed Procedure

Necessary Procedure

Effect/Inoperative Function when Necessary Procedure not Performed

Link

Rear wheel alignment adjustment

Perform system variant learning and acceleration sensor zero point calibration.
  • VSC disabled or malfunctioning
  • DTCs are output
  • Slip indicator light illuminated
  • ABS warning light illuminated

2019 - 2021 MY Avalon [04/2018 - 08/2021]; BRAKE CONTROL / DYNAMIC CONTROL SYSTEMS: ELECTRONICALLY CONTROLLED BRAKE SYSTEM (for Gasoline Model): CALIBRATION

Suspension, tires, etc.

(The vehicle height changes because of suspension or tire replacement.)
  • Measure ultrasonic sensor detection angle
  • Ultrasonic sensor detection angle registration
  • 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

Rear television camera assembly optical axis adjustment (Back camera position 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
  • Parking assist ECU initialization
  • Adjust steering angle
  • Television camera assembly optical axis adjustment (Back camera position setting)

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

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

Replaced Part or Performed Procedure

Necessary Procedure

Effect/Inoperative Function when Necessary Procedure not Performed

Link

Rear wheel alignment adjustment
  1. Clear zero point calibration data.
  2. Perform yaw rate and acceleration sensor zero point calibration.
  • DTCs are stored
  • ABS warning light illuminates
  • Brake warning light / yellow (minor malfunction) illuminates
  • Slip indicator light illuminates
  • VSC disabled or malfunctions

2019 - 2021 MY Avalon HV [04/2018 - 08/2021]; BRAKE CONTROL / DYNAMIC CONTROL SYSTEMS: ELECTRONICALLY CONTROLLED BRAKE SYSTEM (for HV Model): CALIBRATION

Suspension, tires, etc.

(The vehicle height changes because of suspension or tire replacement.)
  • Measure 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

Rear television camera assembly optical axis adjustment (Back camera position 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
  • Parking assist ECU initialization
  • Adjust steering angle
  • Television camera assembly optical axis adjustment (Back camera position setting)

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

HINT:

  • Use the same procedure for the RH side and LH side.
  • The following procedure is for the LH side.

PROCEDURE

1. REMOVE REAR WHEEL

Click here 2019 - 2022 MY Avalon Avalon HV [04/2018 -        ]; MAINTENANCE: TIRE AND WHEEL: REMOVAL+

2. REMOVE NO. 2 FLOOR UNDER COVER (for Gasoline Model)

(a) for LH Side:

Click here 2019 - 2022 MY Avalon Avalon HV [04/2018 -        ]; REAR SUSPENSION: REAR STABILIZER BAR (for 2WD): REMOVAL+

3. REMOVE NO. 1 FLOOR UNDER COVER (for Gasoline Model)

(a) for RH Side:

Click here 2019 - 2022 MY Avalon Avalon HV [04/2018 -        ]; REAR SUSPENSION: REAR STABILIZER BAR (for 2WD): REMOVAL+

4. LOOSEN REAR SHOCK ABSORBER ASSEMBLY

(a) Loosen the nut of the rear shock absorber assembly.

NOTICE:

Hold the rear axle carrier pin while rotating the nut.

*1

Rear Axle Carrier Pin

5. SEPARATE NO. 2 PARKING BRAKE WIRE ASSEMBLY (w/ AVS)

(a) Disconnect the connector.

(b) Remove the nut.

(c) Disengage the clamp and separate the No. 2 parking brake wire assembly.

6. REMOVE REAR STABILIZER LINK ASSEMBLY

Click here 2019 - 2022 MY Avalon Avalon HV [04/2018 -        ]; REAR SUSPENSION: REAR STABILIZER BAR (for 2WD): REMOVAL+

7. SEPARATE REAR SHOCK ABSORBER ASSEMBLY

(a) Remove the 2 bolts and separate the rear shock absorber assembly from the vehicle.

8. SEPARATE REAR UPPER CONTROL ARM ASSEMBLY

(a) Using a jack and wooden block, support the rear No. 2 suspension arm assembly.

NOTICE:

  • When jacking up the rear No. 2 suspension arm assembly, be sure to jack it up slowly.
  • Make sure to perform this operation with the vehicle kept as low as possible.

*a

Wooden Block

*b

Jack

(b) Remove the bolt and nut, and separate the rear upper control arm assembly from the rear axle carrier sub-assembly.

NOTICE:

Because the nut has its own stopper, do not turn the nut. Loosen the bolt with the nut secured.

9. REMOVE REAR SHOCK ABSORBER ASSEMBLY

(a) Remove the nut, plate washer and rear shock absorber assembly from the rear axle carrier sub-assembly.

NOTICE:

Hold the rear axle carrier pin while rotating the nut.

*1

Rear Axle Carrier Pin

10. REMOVE REAR SHOCK ABSORBER CAP

(a) Using a screwdriver with its tip wrapped with protective tape, remove the rear shock absorber cap from the rear shock absorber assembly.

*a

Protective Tape

11. REMOVE REAR SUSPENSION SUPPORT ASSEMBLY

(a) Secure the rear shock absorber assembly in a vise using aluminum plates.

NOTICE:

Do not overtighten the vise.

*a

Turn

*b

Hold

(b) Using SST and a 6 mm hexagon socket wrench, hold the rear shock absorber rod and remove the rear support to rear shock absorber nut.

SST: 09729-97202

(c) Remove the rear suspension support assembly from the rear shock absorber assembly.