Last Modified: 08-21-2023 6.11:8.1.0 Doc ID: RM100000001YN7E
Model Year Start: 2022 Model: Avalon Prod Date Range: [08/2021 -           ]
Title: BRAKE SYSTEM (OTHER): BRAKE BOOSTER (for Gasoline Model): REMOVAL; 2022 MY Avalon [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 brake booster assembly 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 [04/2018 -        ]; PARK ASSIST / MONITORING: INTELLIGENT CLEARANCE SONAR SYSTEM (for Gasoline Model): CALIBRATION

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 (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

NOTICE:

Make sure to release vacuum from the brake booster assembly before removing the brake master cylinder sub-assembly from the brake booster assembly.

PROCEDURE

1. PRECAUTION

NOTICE:

After turning the engine switch off, waiting time may be required before disconnecting the cable from the negative (-) battery terminal. Therefore, make sure to read the disconnecting the cable from the negative (-) battery terminal notices before proceeding with work.

Click here 2019 - 2022 MY Avalon Avalon HV [04/2018 -        ]; INTRODUCTION: REPAIR INSTRUCTION: PRECAUTION

2. REMOVE BRAKE MASTER CYLINDER SUB-ASSEMBLY

Click here 2022 MY Avalon [08/2021 -        ]; BRAKE SYSTEM (OTHER): BRAKE MASTER CYLINDER (for Gasoline Model): REMOVAL

3. REMOVE NO. 1 INSTRUMENT PANEL UNDER COVER SUB-ASSEMBLY

Click here 2022 MY Avalon Avalon HV [08/2021 -        ]; INTERIOR PANELS / TRIM: INSTRUMENT PANEL SAFETY PAD: REMOVAL+

4. REMOVE COWL TOP VENTILATOR LOUVER SUB-ASSEMBLY

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

5. REMOVE FRONT CENTER UPPER SUSPENSION BRACE SUB-ASSEMBLY

Click here 2022 MY Avalon [08/2021 -        ]; BRAKE CONTROL / DYNAMIC CONTROL SYSTEMS: BRAKE ACTUATOR (for Gasoline Model): REMOVAL+

6. REMOVE NO. 1 ENGINE COVER SUB-ASSEMBLY (for A25A-FKS)

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

7. REMOVE AIR CLEANER ASSEMBLY WITH AIR CLEANER HOSE (for A25A-FKS)

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

8. REMOVE AIR CLEANER ASSEMBLY WITH AIR CLEANER HOSE (for 2GR-FKS)

Click here 2022 MY Avalon [08/2021 -        ]; 2GR-FKS (ENGINE MECHANICAL): ENGINE ASSEMBLY: REMOVAL+

9. REMOVE BATTERY CLAMP SUB-ASSEMBLY

(a) for A25A-FKS:

(1) Disengage the 4 clamps from the battery clamp sub-assembly.

(2) Remove the 3 bolts, nut and battery clamp sub-assembly.

(b) for 2GR-FKS:

(1) Disengage the 5 clamps from the battery clamp sub-assembly.

(2) Remove the 3 bolts, nut and battery clamp sub-assembly.

10. DISCONNECT UNION TO CHECK VALVE HOSE

(a) Slide the clip and disconnect the union to check valve hose from the brake booster assembly.

11. LOOSEN LOCK NUT

(a) Loosen the lock nut of the brake master cylinder push rod clevis.

*1

Lock Nut

*2

Brake Master Cylinder Push Rod Clevis

12. REMOVE PUSH ROD PIN

Click here 2022 MY Avalon [08/2021 -        ]; BRAKE SYSTEM (OTHER): BRAKE PEDAL (for Gasoline Model): REMOVAL+

13. REMOVE BRAKE BOOSTER ASSEMBLY

(a) Disconnect the connector from the vacuum warning switch assembly.

(b) Remove the 4 nuts and push the brake booster assembly toward the engine compartment.

NOTICE:

Do not apply excessive force to the brake lines.

(c) Remove the brake master cylinder push rod clevis and lock nut from the brake booster assembly.

(d) Remove the brake booster assembly from the vehicle body.

NOTICE:

Do not apply excessive force to the brake lines.

14. REMOVE BRAKE BOOSTER GASKET