BRAKE CONTROL / DYNAMIC CONTROL SYSTEMS: BRAKE ACTUATOR (for Gasoline Model): REMOVAL; 2023 - 2025 MY Corolla Corolla Hatchback GR Corolla [11/2022

Last Modified: 05-13-2024	6.11:8.1.0	Doc ID: RM1000000028J6A
Model Year Start: 2023	Model: GR Corolla	Prod Date Range: [11/2022 - ]
Title: BRAKE CONTROL / DYNAMIC CONTROL SYSTEMS: BRAKE ACTUATOR (for Gasoline Model): REMOVAL; 2023 - 2025 MY Corolla Corolla Hatchback GR Corolla [11/2022 - ]

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 actuator 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
Skid control ECU (brake actuator assembly)	Update ECU security key	Vehicle Control History (RoB) are stored
	Perform "Calibration"	VSC is disabled or malfunctions DTCs are output Slip indicator light illuminates ABS warning light illuminates	w/ Electric Parking Brake System w/o Electric Parking Brake System
	Operate the electric parking brake switch	Electric Parking Brake System
Tire	ECU Data Initialization (When performing tire replacement after RoB code X2104 is output)	Active Torque Split AWD System

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 (-) battery terminal.
When the cable is disconnected from the negative (-) 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 (-) battery terminal. (for Audio and Visual System (for Single Knob Type))

HINT:

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

Learning completes when vehicle is driven

Effect/Inoperative Function when Necessary Procedure not Performed	Necessary Procedure	Link
1: for GR Model 2: except GR Model
Front Camera System (for TMC Made)	Drive the vehicle straight ahead at 35 km/h (22 mph) or more for 5 seconds or more.1 Drive the vehicle straight ahead at 15 km/h (9 mph) or more for 1 second or more.2

Learning completes when vehicle is operated normally

Effect/Inoperative Function when Necessary Procedure not Performed	Effect/Inoperative Function when Necessary Procedure not Performed	Link
*1: for Hatchback
Power Door Lock Control System Back door opener*1	Perform door unlock operation with door control switch or electrical key transmitter sub-assembly switch.

PROCEDURE

1. PRECAUTION

NOTICE:

After turning the ignition 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.

2. DISCONNECT CABLE FROM NEGATIVE BATTERY TERMINAL

for M20A-FKS: Click here

for G16E-GTS: Click here

3. DRAIN BRAKE FLUID

NOTICE:

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

4. REMOVE WINDSHIELD WIPER MOTOR AND LINK ASSEMBLY

Click here

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

except G16E-GTS: Click here

for G16E-GTS: Click here

6. REMOVE OUTER COWL TOP PANEL SUB-ASSEMBLY

except G16E-GTS: Click here

for G16E-GTS: Click here

7. REMOVE NO. 1 ENGINE UNDER COVER ASSEMBLY (for M20A-FKS)

Click here

8. REMOVE DASH PANEL HEAT INSULATOR (for M20A-FKS)

(a) Remove the nut.

(b) Remove the 2 nuts and dash panel heat insulator.

9. REMOVE NO. 1 ENGINE UNDER COVER ASSEMBLY (for G16E-GTS)

Click here

10. REMOVE DASH PANEL HEAT INSULATOR (for G16E-GTS)

(a) Remove the nut.

(b) Remove the 2 nuts and dash panel heat insulator.

11. REMOVE BRAKE ACTUATOR WITH BRACKET

(a) except G16E-GTS:

(1) Release the lock lever and disconnect the connector from the brake actuator assembly.

NOTICE:

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

	Release the lock lever
	Disconnect the connector

(b) for G16E-GTS:

(1) Release the lock lever and disconnect the connector from the brake actuator assembly.

NOTICE:

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

	Release the lock lever
	Disconnect the connector

*a	From 1st Chamber of Brake Master Cylinder Sub-assembly
*b	From 2nd Chamber of Brake Master Cylinder Sub-assembly
*c	To Front Wheel Cylinder Assembly RH
*d	To Rear Wheel Cylinder Assembly LH
*e	To Rear Wheel Cylinder Assembly RH
*f	To Front Wheel Cylinder Assembly LH

(d) Using a union nut wrench, disconnect the 6 brake lines 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.

(e) Disengage the 5 clamps to remove the No. 1 brake tube clamp from the brake lines.

NOTICE:

Do not kink or damage the brake lines.

(f) Remove the 2 nuts.

(g) Remove the bolt and brake actuator with bracket.

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.
Be careful not to allow any brake fluid to enter the connector.
Do not hold the brake actuator assembly by the connector.
Do not drop the brake actuator with bracket when carrying it.

HINT:

Remove the brake actuator with bracket while avoiding the brake lines.

12. REMOVE BRAKE ACTUATOR ASSEMBLY (except G16E-GTS)

(a) Remove the 3 bolts and brake actuator assembly from the brake actuator bracket assembly.

NOTICE:

Do not hold the brake actuator assembly by the connector.
Be careful not to allow any brake fluid to enter the connector.
Do not drop the brake actuator assembly when carrying it.

13. REMOVE BRAKE ACTUATOR BRACKET CUSHION (except G16E-GTS)

(a) Remove the 3 nuts and separate the brake actuator bracket assembly.

*1	No. 1 Brake Actuator Case Collar
*2	Brake Actuator Bracket Cushion
*3	Brake Actuator Bracket Assembly

(b) Remove the 3 No. 1 brake actuator case collars from the brake actuator bracket cushion.

14. REMOVE BRAKE ACTUATOR BRACKET CUSHION (for G16E-GTS)

(a) Remove the 3 nuts and separate the brake actuator bracket assembly.

*1	No. 1 Brake Actuator Case Collar
*2	Brake Actuator Bracket Cushion
*3	Brake Actuator With Bracket

(b) Remove the 3 No. 1 brake actuator case collars from the brake actuator bracket cushion.

15. REMOVE BRAKE ACTUATOR ASSEMBLY (for G16E-GTS)

(a) Remove the 3 bolts and brake actuator assembly from the brake actuator bracket assembly.

NOTICE:

Do not hold the brake actuator assembly by the connector.
Be careful not to allow any brake fluid to enter the connector.
Do not drop the brake actuator assembly when carrying it.