Last Modified: 07-31-2024 6.11:8.1.0 Doc ID: RM10000000262LV
Model Year Start: 2023 Model: Corolla Prod Date Range: [09/2022 -           ]
Title: BRAKE SYSTEM (OTHER): BRAKE BOOSTER (for HV Model): REMOVAL; 2023 - 2025 MY Corolla Corolla HV [09/2022 -        ]

REMOVAL

CAUTION / NOTICE / HINT

The necessary procedures (adjustment, calibration, initialization, or registration) that must be performed after parts are removed, installed, or replaced during brake booster with master cylinder 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

Replacement of brake booster with master cylinder assembly

Update ECU security key

Vehicle Control History (RoB) are stored

2023 - 2025 MY Corolla Corolla HV [09/2022 -        ]; BRAKE CONTROL / DYNAMIC CONTROL SYSTEMS: ELECTRONICALLY CONTROLLED BRAKE SYSTEM (for HV Model): UTILITY

  1. Bleed air
  2. Perform "Reset Memory"
  3. Perform "Calibration"
  • DTCs are stored
  • ABS warning light illuminates
  • Brake system warning light (yellow indicator) illuminates
  • Slip indicator light illuminates
  • Electronically controlled brake system disabled or malfunctions

HINT:

When the cable is disconnected / reconnected to the auxiliary battery terminal, systems temporarily stop operating. However, each system has a function that completes learning the first time the system is used.

Items for which learning is completed by driving the vehicle

Effect/Inoperative Function when Necessary Procedure not Performed

Necessary Procedures

Link

Front Camera System

Drive the vehicle straight ahead at 15 km/h (9 mph) or more for 1 second or more.

2023 MY Corolla Corolla Hatchback Corolla HV GR Corolla [09/2022 - 11/2022]; ADVANCED DRIVER ASSISTANCE SYSTEM: FRONT CAMERA SYSTEM (for TMC Made): INITIALIZATION 2023 - 2025 MY Corolla Corolla Hatchback Corolla HV GR Corolla [11/2022 -        ]; ADVANCED DRIVER ASSISTANCE SYSTEM: FRONT CAMERA SYSTEM: INITIALIZATION

NOTICE:

  • After the ignition switch is turned off, the radio and display receiver assembly records various types of memory and settings. As a result, after turning the ignition switch off, make sure to wait at least 3 minutes before disconnecting the cable from the negative (-) auxiliary battery terminal.
  • When the cable is disconnected from the negative (-) auxiliary battery terminal and the security lock setting has been enabled, multi-display operations will be disabled upon next startup unless the password is entered. Be sure to check the security lock setting before disconnecting the cable from the negative (-) auxiliary battery terminal. (for Audio and Visual System (for 8 Inch Display Type (w/ Single Knob Type) or 10.5 Inch Display Type))

PROCEDURE

1. PRECAUTION

NOTICE:

After the ignition switch is turned off, there may be a waiting time before disconnecting the negative (-) auxiliary battery terminal.

Click here 2023 - 2025 MY Corolla Corolla Hatchback Corolla HV GR Corolla [09/2022 -        ]; SETUP: WHEN DISCONNECTING OR RECONNECTING BATTERY TERMINAL: BEFORE DISCONNECTING BATTERY

2. DISCONNECT CABLE FROM NEGATIVE AUXILIARY BATTERY TERMINAL

Click here 2023 MY Corolla Corolla HV [09/2022 - 11/2022]; MAINTENANCE: 2ZR-FXE AUXILIARY BATTERY: REMOVAL 2023 - 2025 MY Corolla Corolla HV [11/2022 -        ]; MAINTENANCE: 2ZR-FXE AUXILIARY BATTERY: REMOVAL

3. REMOVE FRONT WHEEL LH

Click here 2023 - 2025 MY Corolla Corolla Hatchback Corolla HV GR Corolla [09/2022 -        ]; MAINTENANCE: TIRE AND WHEEL: REMOVAL

4. REMOVE WINDSHIELD WIPER MOTOR AND LINK ASSEMBLY

Click here 2023 MY Corolla Corolla Hatchback Corolla HV GR Corolla [09/2022 - 11/2022]; WIPER / WASHER: FRONT WIPER MOTOR: REMOVAL 2023 - 2025 MY Corolla Corolla Hatchback Corolla HV GR Corolla [11/2022 -        ]; WIPER / WASHER: FRONT WIPER MOTOR: REMOVAL

5. REMOVE NO. 1 HEATER AIR DUCT SPLASH SHIELD SEAL

Click here 2023 MY Corolla Corolla Hatchback Corolla HV [09/2022 - 11/2022]; FRONT SUSPENSION: FRONT SHOCK ABSORBER (except G16E-GTS): REMOVAL+ 2023 - 2025 MY Corolla Corolla Hatchback Corolla HV [11/2022 -        ]; FRONT SUSPENSION: FRONT SHOCK ABSORBER (except G16E-GTS): REMOVAL+

6. REMOVE OUTER COWL TOP PANEL SUB-ASSEMBLY

Click here 2023 MY Corolla Corolla Hatchback Corolla HV [09/2022 - 11/2022]; FRONT SUSPENSION: FRONT SHOCK ABSORBER (except G16E-GTS): REMOVAL+ 2023 - 2025 MY Corolla Corolla Hatchback Corolla HV [11/2022 -        ]; FRONT SUSPENSION: FRONT SHOCK ABSORBER (except G16E-GTS): REMOVAL+

7. DRAIN BRAKE FLUID

NOTICE:

If brake fluid leaks onto any painted surface, immediately wash it off.

8. SEPARATE ENGINE ROOM MAIN WIRE

(a) Disconnect the connector (A) from the brake booster.

Push in this direction

Disconnect the connector in this direction

(b) Disengage the clamp from the brake master cylinder reservoir assembly.

(c) Disconnect the connector (B) from the brake master cylinder reservoir assembly as shown in the illustration.

(d) As shown in the illustration, lift the lock lever while pressing the lock and disconnect the connector from the brake booster.

Pressing the lock

Lift the lock lever

Disconnect the connector

NOTICE:

Be careful not to allow any brake fluid to enter the connector.

9. SEPARATE FRONT NO. 5 BRAKE TUBE

(a) Using a union nut wrench, disconnect the front No. 5 brake tube from the front flexible hose LH.

NOTICE:

  • Do not kink or damage the brake lines.
  • Do not allow any foreign matter such as dirt or dust to enter the brake lines from the connecting parts.

(b) Disconnect the front brake tube grommet from the vehicle body as shown in the illustration.

Disconnect in this Direction

(c) Using a union nut wrench, disconnect the front No. 5 brake tube from the brake actuator assembly.

NOTICE:

  • Do not kink or damage the brake lines.
  • Do not allow any foreign matter such as dirt or dust to enter the brake lines from the connecting parts.

(d) Disengage the 5 clamps and remove the No. 3 brake tube clamp from the brake lines.

NOTICE:

  • Do not kink or damage the brake lines.
  • Do not allow any foreign matter such as dirt or dust to enter the brake lines from the connecting parts.

(e) Disengage the 6 clamps and remove the No. 4 brake tube clamp from the brake lines.

NOTICE:

  • Do not kink or damage the brake lines.
  • Do not allow any foreign matter such as dirt or dust to enter the brake lines from the connecting parts.

(f) Disengage the 5 clamps and remove the No. 3 brake tube clamp from the brake lines.

NOTICE:

  • Do not kink or damage the brake lines.
  • Do not allow any foreign matter such as dirt or dust to enter the brake lines from the connecting parts.

(g) Disengage the 5 clamps and remove the No. 3 brake tube clamp from the brake lines.

NOTICE:

  • Do not kink or damage the brake lines.
  • Do not allow any foreign matter such as dirt or dust to enter the brake lines from the connecting parts.

10. SEPARATE BRAKE LINE

(a) Using a union nut wrench, disconnect the 2 brake lines from the brake master cylinder sub-assembly.

NOTICE:

  • Do not kink or damage the brake lines.
  • Do not allow any foreign matter such as dirt or dust to enter the brake lines from the connecting parts.

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

Click here 2023 MY Corolla Corolla Hatchback Corolla HV [09/2022 - 11/2022]; INTERIOR PANELS / TRIM: FRONT CONSOLE BOX (except G16E-GTS): REMOVAL+ 2023 - 2025 MY Corolla Corolla Hatchback Corolla HV [11/2022 -        ]; INTERIOR PANELS / TRIM: FRONT CONSOLE BOX (except G16E-GTS): REMOVAL+

12. REMOVE BRAKE PEDAL RETURN SPRING

Click here 2023 - 2025 MY Corolla Corolla HV [09/2022 -        ]; BRAKE SYSTEM (OTHER): BRAKE PEDAL (for HV Model): REMOVAL+

13. REMOVE PUSH ROD PIN

Click here 2023 - 2025 MY Corolla Corolla HV [09/2022 -        ]; BRAKE SYSTEM (OTHER): BRAKE PEDAL (for HV Model): REMOVAL+

14. REMOVE BRAKE BOOSTER WITH MASTER CYLINDER ASSEMBLY

(a) Remove the 4 nuts and brake booster with master cylinder assembly.

NOTICE:

  • Do not kink or damage the brake lines.
  • Do not carry the brake booster with master cylinder assembly by the parts shown in the illustration.
  • Be careful not to allow any brake fluid to enter the connector.

*a

Connectors

*b

Boot

*c

Brake Master Cylinder Push Rod Clevis

*d

Brake Master Cylinder Reservoir Assembly

15. REMOVE BRAKE BOOSTER GASKET

(a) Remove the brake booster gasket from the brake booster with master cylinder assembly.