Last Modified: 05-13-2024 6.11:8.1.0 Doc ID: RM100000001GOQI
Model Year Start: 2020 Model: Corolla Prod Date Range: [01/2019 - 09/2022]
Title: BRAKE SYSTEM (OTHER): BRAKE PEDAL (for HV Model): ADJUSTMENT; 2020 - 2022 MY Corolla Corolla HV [01/2019 - 09/2022]

ADJUSTMENT

PROCEDURE

1. INSPECT AND ADJUST BRAKE PEDAL HEIGHT

(a) Remove the front door scuff plate LH.

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(b) Remove the cowl side trim sub-assembly LH.

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(c) Turn back the front floor carpet assembly.

(d) Check the brake pedal height.

NOTICE:

  • Inspect and adjust the brake pedal height with the floor carpet folded back.
  • When performing the measurement, make sure that the measuring device is contacting the surface of the dash panel insulator assembly clip.

(1) Measure the shortest distance between the brake pedal pad surface and dash panel insulator assembly clip.

*1

Brake Pedal Pad

*2

Dash Panel Insulator Assembly Clip

*a

Brake Pedal Height

*b

30 mm (1.18 in.)

Brake Pedal Height from Dash Panel Insulator Assembly Clip:

171.3 to 185.3 mm (6.74 to 7.29 in.)

HINT:

If the pedal height is not as specified, adjust the brake pedal height according to the procedure below.

(e) Adjust the push rod length.

(1) Remove the stop light switch assembly.

Click here 2019 - 2025 MY Corolla Corolla Hatchback Corolla HV GR Corolla [06/2018 -        ]; LIGHTING (EXT): STOP LIGHT SWITCH: REMOVAL

*1

Lock Nut

*2

Stop Light Switch Assembly

*3

Dash Panel Insulator Assembly Clip

*a

Brake Pedal Height

(2) Loosen the lock nut.

(3) Adjust the brake pedal height by turning the push rod.

Brake Pedal Height from Dash Panel Insulator Assembly Clip:

171.3 to 185.3 mm (6.74 to 7.29 in.)

(4) Tighten the lock nut.

Torque:

25.5 N·m {260 kgf·cm, 19 ft·lbf}

(5) Install the stop light switch assembly.

Click here 2020 - 2025 MY Corolla Corolla Hatchback Corolla HV GR Corolla [01/2019 -        ]; LIGHTING (EXT): STOP LIGHT SWITCH: INSTALLATION

(f) Install the front floor carpet assembly to its original position.

(g) Install the cowl side trim sub-assembly LH.

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(h) Install the front door scuff plate LH.

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2. INSPECT AND ADJUST BRAKE PEDAL STROKE SENSOR ASSEMBLY

(a) Inspect the brake pedal stroke sensor assembly.

(1) Connect the Techstream to the DLC3 with the power switch off.

(2) Turn the power switch on (IG).

(3) Turn the Techstream on and enter the following menus: Chassis / ABS/VSC/TRAC / Data List / Stroke Sensor.

Chassis > ABS/VSC/TRAC > Data List

Tester Display

Stroke Sensor

(4) Read the stroke sensor value without the brake pedal depressed.

Standard Voltage (without the brake pedal depressed):

0.8 to 1.2 V

HINT:

If the stroke sensor value is not within the standard voltage, adjust the brake pedal stroke sensor assembly.

(b) Adjust the brake pedal stroke sensor assembly.

(1) Remove the No. 1 instrument panel under cover sub-assembly.

Click here 2020 - 2022 MY Corolla Corolla Hatchback Corolla HV [01/2019 - 09/2022]; INTERIOR PANELS / TRIM: FRONT CONSOLE BOX (except G16E-GTS): REMOVAL+

(2) Loosen the 2 nuts.

NOTICE:

Do not depress the brake pedal after turning the power switch on (IG).

(3) Read the stroke sensor value in the Data List, and turn the brake pedal stroke sensor assembly slowly to the right or left to adjust the output voltage so that it is within the following range.

Standard Voltage (without the brake pedal depressed):

0.8 to 1.2 V

(4) Tighten the 2 nuts.

Torque:

8.5 N·m {87 kgf·cm, 75 in·lbf}

(5) Turn the Techstream off and turn the power switch off.

(6) Disconnect the Techstream.

(7) Install the No. 1 instrument panel under cover sub-assembly.

Click here 2020 - 2022 MY Corolla Corolla Hatchback Corolla HV [01/2019 - 09/2022]; INTERIOR PANELS / TRIM: FRONT CONSOLE BOX (except G16E-GTS): INSTALLATION+

(c) Perform linear solenoid valve offset learning, ABS holding solenoid valve learning, brake pedal stroke sensor assembly zero point calibration and system information memorization.

Click here 2020 - 2022 MY Corolla Corolla HV [01/2019 - 09/2022]; BRAKE CONTROL / DYNAMIC CONTROL SYSTEMS: ELECTRONICALLY CONTROLLED BRAKE SYSTEM (for HV Model): INITIALIZATION

3. INSPECT BRAKE PEDAL FREE PLAY

(a) Depress the brake pedal until a slight resistance is felt. Measure the brake pedal free play as shown in the illustration.

Brake Pedal Free Play:

1.0 to 6.0 mm (0.0394 to 0.236 in.)

HINT:

  • If the pedal free play is not as specified, check the stop light switch clearance.

    Click here 2020 - 2025 MY Corolla Corolla Hatchback Corolla HV GR Corolla [01/2019 -        ]; LIGHTING (EXT): STOP LIGHT SWITCH: INSTALLATION+

  • If the pedal free play is as specified, proceed to the Inspect Brake Pedal Reserve Distance procedure.

*a

Brake Pedal Free Play

4. INSPECT BRAKE PEDAL RESERVE DISTANCE

(a) With the power switch on (READY), depress the brake pedal and measure the brake pedal reserve distance.

*1

Brake Pedal Pad

*2

Column Hole Cover Silencer Sheet

*a

Brake Pedal Reserve Distance

*b

30 mm (1.18 in.)

*c

70 mm (2.76 in.)

-

-

Measuring Plane of Column Hole Cover Silencer Sheet

-

-

Brake Pedal Reserve Distance from Column Hole Cover Silencer Sheet at 300 N (31 kgf, 67.4 lbf):

133 mm (5.24 in.) or more

HINT:

If the distance is not as specified, troubleshoot the brake system.

Click here 2020 - 2022 MY Corolla Corolla HV [01/2019 - 09/2022]; BRAKE SYSTEM (OTHER): BRAKE SYSTEM (for HV Model): PROBLEM SYMPTOMS TABLE