Last Modified: 08-21-2023 6.11:8.1.0 Doc ID: RM100000001RYKO
Model Year Start: 2021 Model: Avalon HV Prod Date Range: [08/2020 - 08/2021]
Title: AXLE AND DIFFERENTIAL: FRONT AXLE HUB: REMOVAL; 2021 MY Avalon Avalon HV [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 front axle hub sub-assembly removal/installation are shown below.

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
*: 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 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

Front 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

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

Front 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

for HV Model:

  • When removing or installing the front disc brake caliper assembly, pushing back the disc brake piston may cause a large clearance between the brake pads and brake disc. When the brake pedal is depressed with a large clearance between the brake pads and the brake disc, DTC C1214 related to abnormal brake fluid pressure may be stored. Make sure to clear any DTCs after performing this procedure.
  • While the auxiliary battery is connected, even if the power switch is off, the brake control system activates when the brake pedal is depressed or any door courtesy switch turns on. Therefore, when servicing the brake system components, do not operate the brake pedal or open/close the doors while the auxiliary battery is connected.

HINT:

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

PROCEDURE

1. PRECAUTION (for HV Model)

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

2. DISABLE BRAKE CONTROL (for HV Model)

Click here 2019 - 2021 MY Avalon Avalon HV [04/2018 - 08/2021]; BRAKE (FRONT): FRONT BRAKE (except 2-Pot Caliper): REMOVAL+

3. REMOVE FRONT WHEEL

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

4. REMOVE FRONT AXLE SHAFT NUT

for 2WD: Click here 2019 - 2021 MY Avalon Avalon HV [04/2018 - 08/2021]; DRIVE SHAFT / PROPELLER SHAFT: FRONT DRIVE SHAFT ASSEMBLY (for 2WD): REMOVAL+

for 4WD: Click here 2021 MY Avalon [08/2020 - 08/2021]; DRIVE SHAFT / PROPELLER SHAFT: FRONT DRIVE SHAFT ASSEMBLY (for AWD): REMOVAL+

5. SEPARATE FRONT SPEED SENSOR (w/o AVS)

(a) Remove the bolt and separate the front speed sensor and front flexible hose from the front shock absorber assembly.

NOTICE:

Be sure to separate the front speed sensor and front flexible hose from the front shock absorber assembly completely.

(b) Remove the bolt, disengage the clamp and separate the front speed sensor from the front shock absorber assembly and steering knuckle.

NOTICE:

  • Prevent foreign matter from contacting the sensor tip.
  • Be careful not to damage the front speed sensor.
  • Clean the speed sensor installation hole and the contact surfaces every time the front speed sensor is removed.

6. SEPARATE FRONT SPEED SENSOR (w/ AVS)

(a) Remove the bolt and separate the front speed sensor and front flexible hose from the front shock absorber assembly.

NOTICE:

Be sure to separate the front speed sensor and front flexible hose from the front shock absorber assembly completely.

(b) Disconnect the AVS connector from the absorber control actuator.

(c) Remove the 2 bolts and separate the front speed sensor from the front shock absorber assembly and steering knuckle.

NOTICE:

  • Prevent foreign matter from contacting the sensor tip.
  • Be careful not to damage the front speed sensor.
  • Clean the speed sensor installation hole and the contact surfaces every time the speed sensor is removed.

7. SEPARATE TIE ROD ASSEMBLY

for HV Model: Click here 2019 - 2021 MY Avalon HV [04/2018 - 08/2021]; STEERING GEAR / LINKAGE: STEERING GEAR (for HV Model): REMOVAL+

for Gasoline Model: Click here 2021 MY Avalon [08/2020 - 08/2021]; STEERING GEAR / LINKAGE: STEERING GEAR (for Gasoline Model): REMOVAL+

8. SEPARATE FRONT DISC BRAKE CALIPER ASSEMBLY

Click here 2020 - 2021 MY Avalon Avalon HV [08/2019 - 08/2021]; AXLE AND DIFFERENTIAL: FRONT AXLE HUB BOLT: REPLACEMENT+

9. REMOVE FRONT DISC

except 2-Pot Caliper: Click here 2019 - 2021 MY Avalon Avalon HV [04/2018 - 08/2021]; BRAKE (FRONT): FRONT BRAKE (except 2-Pot Caliper): REMOVAL+

for 2-Pot Caliper: Click here 2020 - 2022 MY Avalon Avalon HV [08/2019 -        ]; BRAKE (FRONT): FRONT BRAKE (for 2-Pot Caliper): REMOVAL+

10. SEPARATE FRONT LOWER NO. 1 SUSPENSION ARM SUB-ASSEMBLY

(a) Remove the bolt and 2 nuts and separate the front lower No. 1 suspension arm sub-assembly from the front lower ball joint assembly.

11. SEPARATE FRONT DRIVE SHAFT ASSEMBLY

(a) Put matchmarks on the front drive shaft assembly and the front axle hub sub-assembly.

*a

Matchmark

(b) Using a plastic hammer, separate the front drive shaft assembly from the front axle assembly.

NOTICE:

  • Do not damage the front drive shaft outboard joint boot.
  • Do not push the front axle assembly towards the outside of the vehicle any further than necessary.

HINT:

If it is difficult to separate the front drive shaft assembly from the front axle assembly, tap the end of the front drive shaft assembly using a brass bar and a hammer.

12. REMOVE FRONT AXLE ASSEMBLY

(a) Remove the 2 bolts, 2 nuts and front axle assembly from the front shock absorber assembly.

NOTICE:

When removing the nuts, keep the bolts from rotating.

13. REMOVE FRONT AXLE HUB SUB-ASSEMBLY

(a) Secure the front axle assembly between aluminum plates in a vise.

NOTICE:

Do not overtighten the vise.

(b) Remove the 4 bolts, front axle hub sub-assembly and front disc brake dust cover from the steering knuckle.

NOTICE:

  • Do not drop the front axle hub sub-assembly.
  • Be careful not to damage the speed sensor rotor or contact surfaces.
  • Do not allow foreign matter to contact the speed sensor rotor or contact surfaces.