Last Modified: 05-13-2024 6.11:8.1.0 Doc ID: RM1000000025DSO
Model Year Start: 2023 Model: Corolla Prod Date Range: [09/2022 -           ]
Title: BRAKE CONTROL / DYNAMIC CONTROL SYSTEMS: ELECTRONICALLY CONTROLLED BRAKE SYSTEM (for HV Model): FREEZE FRAME DATA; 2023 - 2025 MY Corolla Corolla HV [09/2022 -        ]

FREEZE FRAME DATA

FREEZE FRAME DATA/INFORMATION

(a) Using the GTS, check the vehicle condition (ECU, sensor) when the brake system operates or a DTC is output.

CHECK FREEZE FRAME DATA AND INFORMATION WHEN DTC WAS STORED

(a) Freeze Frame Data is stored when a DTC is output.

(b) Once Freeze Frame Data is stored when a DTC is output, it is not updated or cleared until the DTC is cleared.

(c) Check the Freeze Frame Data when a DTC is output.

(1) Turn the ignition switch off.

(2) Connect the GTS to the DLC3.

(3) Turn the ignition switch to ON.

(4) Turn the GTS on.

(5) Enter the following menus: Chassis / Brake Booster / Trouble Codes.

Chassis > Brake Booster > Trouble Codes

(6) Enter the following menus: Chassis / Brake/EPB* / Trouble Codes.

*: Electric Parking Brake System

Chassis > Brake/EPB > Trouble Codes

(7) Select a DTC to display the Freeze Frame Data.

(8) Check the Freeze Frame Data for the output DTC.

Chassis > Brake Booster

Tester Display

Measurement Item

Range

Normal Condition

Diagnostic Note

Total Distance Traveled - Unit

Total Distance Traveled unit

km / mile

-

-

Total Distance Traveled

Total distance traveled

Min.: 0, Max.: 16777215

-

-

Master Cylinder Sensor 1

Master cylinder pressure sensor pressure (value detected by ECU)

Min.: -1.00 MPa, Max.: 23.99 MPa

Brake pedal released: -1.00 to 0.00 MPa

Reading increases when brake pedal is depressed

ECB Motor Relay

Motor relay operation request

OFF / ON

OFF: Relay off

ON: Relay on

ECB: Electronically Controlled Brake System

ECB Motor Relay2

Motor relay 2 operation request

OFF / ON

OFF: Relay off

ON: Relay on

ECB: Electronically Controlled Brake System

Quantity of Brake Pedal Stroke

Brake pedal stroke amount

Min.: 0 mm, Max.: 255 mm

Brake pedal released: 0 mm

Reading increases when brake pedal is depressed

Brake Pedal Stroke Change Speed

Brake pedal stroke rate of change

Min.: -2560 mm/s, Max.: 2540 mm/s

Brake pedal released or depressed and held: 0 mm/s

Brake pedal is being moved: Changes in proportion to the operation speed of the brake pedal

VCSK Voltage Value

VCSK voltage value

Min.: 0.000 V, Max.: 5.500 V

4.800 to 5.200 V

-

+BS Voltage

+BS voltage value

Min.: 0.0 V, Max.: 25.5 V

-

Changes in proportion to auxiliary battery voltage

Stroke Sensor (DTS) CH1 SENT

Relative displacement sensor (brake booster with master cylinder assembly) CH1 SENT value

Min.: 0, Max.: 4095

-

-

Stroke Sensor (DTS) CH2 PWM

Relative displacement sensor (brake booster with master cylinder assembly) CH2 PWM value

Min.: 0 %, Max.: 100 %

-

-

The Number of Capacitor Operation

The Number of Capacitor Operation

Min.: 0 Times, Max.: 255 Times

-

-

Chassis > Brake/EPB

Tester Display

Measurement Item

Range

Normal Condition

Diagnostic Note

Total Distance Traveled - Unit

Total Distance Traveled unit

km / mile

-

-

Total Distance Traveled

Total distance traveled

Min.: 0, Max.: 16777215

-

-

FR Wheel Speed

Front wheel speed sensor RH reading

Min.: 0.0 km/h (0 mph), Max.: 6553.5 km/h (4072 mph)

Vehicle stopped: 0.0 km/h (0.0 mph)

When driving at constant speed: No large fluctuations

FL Wheel Speed

Front wheel speed sensor LH reading

Min.: 0.0 km/h (0 mph), Max.: 6553.5 km/h (4072 mph)

Vehicle stopped: 0.0 km/h (0.0 mph)

When driving at constant speed: No large fluctuations

RR Wheel Speed

Rear wheel speed sensor RH reading

Min.: 0.0 km/h (0 mph), Max.: 6553.5 km/h (4072 mph)

Vehicle stopped: 0.0 km/h (0.0 mph)

When driving at constant speed: No large fluctuations

RL Wheel Speed

Rear wheel speed sensor LH reading

Min.: 0.0 km/h (0 mph), Max.: 6553.5 km/h (4072 mph)

Vehicle stopped: 0.0 km/h (0.0 mph)

When driving at constant speed: No large fluctuations

Master Cylinder Sensor 1

Master cylinder pressure sensor pressure (value detected by ECU)

Min.: -1.00 MPa, Max.: 23.99 MPa

Brake pedal released: -1.00 to 0.00 MPa

Reading increases when brake pedal is depressed

M/C Sensor Grade

Master cylinder pressure sensor change (value detected by ECU)

Min.: -30 MPa/s, Max.: 225 MPa/s

Brake pedal released or pedal held at constant position: 0 MPa/s

When brake pedal is being operated: Changes in proportion with the pedal movement speed

Lateral G

Lateral G

Min.: -25.105 m/s2, Max.: 24.908 m/s2

Turning right: -25.105 to 0.000 m/s2

Turning left: 0.000 to 24.908 m/s2

During turning: Changes in proportion with lateral acceleration

Forward and Rearward G

Forward and rearward G

Min.: -25.105 m/s2, Max.: 24.908 m/s2

During deceleration: -25.105 to 0.000 m/s2

During acceleration: 0.000 to 24.908 m/s2

During acceleration/deceleration: Changes in proportion with acceleration

Yaw Rate Sensor Value

Yaw rate sensor

Min.: -128°/s, Max.: 127°/s

Vehicle stopped: 0°/s

Turning right: -128 to 0°/s

Turning left: 0 to 127°/s

-

Steering Angle Value

Steering angle sensor

Min.: -3276.8°, Max.: 3276.7°

Turning left: 0.0 to 3276.7°

Turning right: -3276.8 to 0.0°

-

Zero Point of Steering Angle

Memorized zero point value of steering angle sensor

Min.: -3276.8°, Max.: 3276.7°

-

-

MT Voltage Value

ABS motor drive voltage value

Min.: 0.0 V, Max.: 25.5 V

-

Changes in proportion to auxiliary battery voltage

HINT:

This is the voltage output (which supplies power to the ABS motor) from the skid control ECU (brake actuator assembly) to the ABS motor relay

Solenoid Power Supply Voltage

Solenoid power supply voltage value

Min.: 0.0 V, Max.: 25.5 V

-

Changes in proportion to auxiliary battery voltage

HINT:

This is the voltage output (which supplies power to each solenoid) from the skid control ECU (brake actuator assembly) to the ABS solenoid relay

Accelerator Opening Angle %

Percentage of accelerator pedal opening angle

Min.: 0.0%, Max.: 127.5%

Accelerator pedal released: 0.0%

During accelerator pedal operation: Changes in proportion with the pedal movement

Shift Lever Position

Shift lever position information

fail / 1st / 2nd / 3rd / 4th / 5th / 6th / B / D/M / N / P / R / No input

Actual shift lever position

-

TRC(TRAC)/VSC OFF Mode

TRAC/VSC off mode

Normal mode (TRC(TRAC) ON/VSC ON) /

TRC(TRAC) OFF mode (TRC(TRAC) OFF/VSC ON) /

VSC expert mode (VSC expert mode MID ON) /

VSC OFF mode (TRC(TRAC) OFF/VSC OFF)

Normal mode (TRC(TRAC) ON/VSC ON): Normal mode

TRC(TRAC) OFF mode (TRC(TRAC) OFF/VSC ON): TRAC off mode

VSC expert mode (VSC expert mode MID ON): VSC expert mode

VSC OFF mode (TRC(TRAC) OFF/VSC OFF): VSC off mode

-

Brake Hold Control Mode

Brake hold control mode

Out of control mode /

Pressure hold mode /

Pressure release mode /

EPB lock mode

Out of control mode: Brake hold control system is off or brake hold control system is stand-by mode (brake hold standby indicator light is illuminated)

Pressure hold mode: Brake hold control is operating (brake hold operated indicator light is illuminated)

Pressure release mode: Brake hold control is released (brake hold standby indicator light not illuminated)

EPB lock mode: Parking brake is engaged during brake hold control

HINT:

  • EPB: Electric Parking Brake System
  • If the brake pedal is not depressed for 3 minutes or more after entering pressure hold mode, the system automatically changes to EPB lock mode

FR Target Oil Pressure

The value of the target oil pressure applied to the front brake RH

Min.: 0.0 MPa, Max.: 20.0 MPa

-

Operating the brake pedal: Varies depending on the target oil pressure

FL Target Oil Pressure

The value of the target oil pressure applied to the front brake LH

Min.: 0.0 MPa, Max.: 20.0 MPa

-

Operating the brake pedal: Varies depending on the target oil pressure

RR Target Oil Pressure

The value of the target oil pressure applied to the rear brake RH

Min.: 0.0 MPa, Max.: 20.0 MPa

-

Operating the brake pedal: Varies depending on the target oil pressure

RL Target Oil Pressure

The value of the target oil pressure applied to the rear brake LH

Min.: 0.0 MPa, Max.: 20.0 MPa

-

Operating the brake pedal: Varies depending on the target oil pressure

Vehicle Speed

Vehicle speed (vehicle speed used for each control)

Min.: 0.0 km/h (0 mph), Max.: 6553.5 km/h (4072 mph)

Vehicle stopped: 0.0 km/h (0.0 mph)

When driving at constant speed: No large fluctuations

Vehicle Speed Grade

Vehicle speed grade

Min.: -25.105 m/s2, Max.: 24.908 m/s2

Vehicle stopped: 0.000 m/s2

During deceleration: -25.105 to 0.000 m/s2

During acceleration: 0.000 to 24.908 m/s2

During deceleration/acceleration: Changes continuously

Vehicle Stop Time from IG ON

Time vehicle stopped after ignition switch turned to ON

Min.: 0 s, Max.: 1275 s

-

-

Travel Distance from IG ON

Driving time after ignition switch turned to ON

Min.: 0 s, Max.: 1275 s

-

-

Stop Light SW

Stop light switch assembly (STP terminal input)

OFF / ON

OFF: Brake pedal released

ON: Brake pedal depressed

HINT:

The brake pedal state is determined using the voltage at terminal STP

Parking Brake SW

Parking brake status

OFF / ON

OFF: Parking brake released

ON: Parking brake applied

-

Brake Hold Switch

Brake hold switch (electric parking brake switch assembly) (HZRI terminal input)

OFF / ON

OFF: Brake hold switch (electric parking brake switch assembly) OFF

ON: Brake hold switch (electric parking brake switch assembly) ON

HINT:

The brake hold switch (electric parking brake switch assembly) state is determined using the voltage at terminal HZRI

Stop Light Relay

Stop light control relay (Stop light switch assembly)

(STP2 terminal input)

OFF / ON

OFF: Stop light control relay (Stop light switch assembly) OFF

ON: Stop light control relay (Stop light switch assembly) ON

HINT:

The stop light state is determined using the voltage at terminal STP2

Inspection Mode

Inspection mode

OFF / ON

OFF: Normal mode

ON: Inspection mode

HINT:

Refer to utility for details on how to enter inspection mode*1

TRC(TRAC) Control

TRAC control status

Out of controlling / Under Controlling

Out of controlling: During not control

Under Controlling: During control

-

TRC(TRAC) Engine Control

TRAC engine control status

Out of controlling / Under Controlling

Out of controlling: During not control

Under Controlling: During control

-

TRC(TRAC) Brake Control

TRAC brake control status

Out of controlling / Under Controlling

Out of controlling: During not control

Under Controlling: During control

-

FR Wheel VSC Ctrl Status

Front wheel RH VSC control status

Out of controlling / Under Controlling

Out of controlling: During not control

Under Controlling: During control

-

FL Wheel VSC Ctrl Status

Front wheel LH VSC control status

Out of controlling / Under Controlling

Out of controlling: During not control

Under Controlling: During control

-

RR Wheel VSC Ctrl Status

Rear wheel RH VSC control status

Out of controlling / Under Controlling

Out of controlling: During not control

Under Controlling: During control

-

RL Wheel VSC Ctrl Status

Rear wheel LH VSC control status

Out of controlling / Under Controlling

Out of controlling: During not control

Under Controlling: During control

-

FR Wheel ABS Ctrl Status

Front wheel RH ABS control status

Out of controlling / Under Controlling

Out of controlling: During not control

Under Controlling: During control

-

FL Wheel ABS Ctrl Status

Front wheel LH ABS control status

Out of controlling / Under Controlling

Out of controlling: During not control

Under Controlling: During control

-

RR Wheel ABS Ctrl Status

Rear wheel RH ABS control status

Out of controlling / Under Controlling

Out of controlling: During not control

Under Controlling: During control

-

RL Wheel ABS Ctrl Status

Rear wheel LH ABS control status

Out of controlling / Under Controlling

Out of controlling: During not control

Under Controlling: During control

-

Fail Status

Fail Status

OFF / ON

OFF: Fail Status off

ON: Fail Status on

Not used

Fail Control

Fail Control Status

OFF / ON

OFF: Fail Control off

ON: Fail Control on

Not used

BA Ctrl Status

BA control status

OFF / ON

OFF: During not control

ON: During control

-

PBA Ctrl Status

PBA control status

OFF / ON

OFF: During not control

ON: During control

w/ Pre-collision System

Stop Light Relay State for ECU Control

Stop light control relay (Stop light switch assembly) status (STPO terminal output) (for ECU control)

OFF / ON

OFF: Stop light control relay (Stop light switch assembly) off (Stop light off)

ON: Stop light control relay (Stop light switch assembly) on (Stop light on)

-

Solenoid State for ECU Control

ABS solenoid relay status (for ECU control)

OFF / ON

OFF: ABS solenoid relay not operating

ON: ABS solenoid relay operating

-

Motor State for ECU Control

ABS motor relay status (for ECU control)

OFF / ON

OFF: ABS motor relay not operating

ON: ABS motor relay operating

-

Operation History of IG OFF while Vehicle is moving

History of ignition switch turned off when vehicle is in motion

OFF / ON

OFF: No history

ON: History of ignition switch turned off with vehicle speed 3 km/h (2 mph) or higher

-

Dealer Mode

Dealer Mode (Signal Check mode or Calibration mode) status

OFF / ON

OFF: Normal mode

ON: Dealer Mode (Signal Check mode or Calibration mode)

HINT:

  • for details on Dealer Mode (Signal Check), refer to test mode procedure*2
  • for details on Dealer Mode (Calibration), refer to utility*3

Zero Point Memory State of Steering Angle Sensor

Steering angle sensor zero point memorization status

Zero point is not memorized / Zero point is memorized

-

HINT:

The steering angle sensor zero point is acquired when the vehicle is being driven in a straight line at a speed of 15 km/h (9 mph) or more for approximately 1 second

Regenerative Cooperation

Regenerative cooperation

OFF / ON

OFF: Not operating

ON: Operating

-

TRC(TRAC)/VSC OFF SW

VSC OFF switch (CSW terminal input)

OFF / ON

OFF: VSC OFF switch OFF

ON: VSC OFF switch ON

HINT:

The VSC OFF switch state is determined using the voltage at terminal CSW

Reservoir Warning SW

Brake fluid level warning switch

OFF / ON

OFF: Reservoir level normal

ON: Reservoir level low

-

IGP_PT2

IGP_PT2 status

OFF / ON

OFF: IGP_PT2 OFF

ON: IGP_PT2 ON

-

Yaw Rate Open

Yaw rate sensor (airbag sensor assembly) open detection

Normal / Under intermittent

Normal: Normal

Under intermittent: Momentary interruption

-

Deceleration Open

Acceleration sensor (airbag sensor assembly) open detection

Normal / Under intermittent

Normal: Normal

Under intermittent: Momentary interruption

-

Steering Open

Steering angle sensor open detection

Normal / Under intermittent

Normal: Normal

Under intermittent: Momentary interruption

-

Quantity of Brake Pedal Stroke

Brake pedal stroke amount

Min.: 0 mm, Max.: 255 mm

Brake pedal released: 0 mm

Reading increases when brake pedal is depressed

FR Regenerative Request

FR regenerative request torque

Min.: 0 Nm, Max.: 1048560 Nm

-

Changes according to brake pedal force (When depressing the brake pedal lightly after reaching 30 km/h (19 mph) or more, avoiding sudden braking.)

FR Regenerative Operation

FR regenerative operation torque

Min.: 0 Nm, Max.: 1048560 Nm

-

Changes according to brake pedal force (When depressing the brake pedal lightly after reaching 30 km/h (19 mph) or more, avoiding sudden braking.)

VCSK Voltage Value

VSK2 voltage value

Min.: 0.000 V, Max.: 5.500 V

4.800 to 5.200 V

-

IGR Voltage

IGR voltage value (value detected by ECU)

Min.: 0.0 V, Max.: 25.5 V

Ignition switch ON: 11.0 to 14.0 V

Changes in proportion to auxiliary battery voltage

+BS Voltage

+BS voltage value

Min.: 0.0 V, Max.: 25.5 V

Ignition switch ON: 11.0 to 14.0 V

Changes in proportion to auxiliary battery voltage

+BM Voltage

BM voltage value

Min.: 0.0 V, Max.: 25.5 V

Ignition switch ON: 11.0 to 14.0 V

Changes in proportion to auxiliary battery voltage

Stroke Sensor (APS) CH1 PWM

Brake pedal stroke sensor assembly CH1 PWM value

Min.: 0%, Max.: 100%

-

-

Stroke Sensor (APS) CH2 PWM

Brake pedal stroke sensor assembly CH2 PWM value

Min.: 0%, Max.: 100%

-

-

Yaw Rate Sensor 1 Higher Resolution Signal

Yaw rate sensor 1 higher resolution signal

Min.: -327.68 deg/sec

Max.: 327.67 deg/sec

Turning right: -327.68 to 0.00 deg/sec

Turning left: 0.00 to327.67 deg/sec

-

Yaw Rate Sensor 2 Higher Resolution Signal

Yaw rate sensor 2 higher resolution signal

Min.: -327.68 deg/sec

Max.: 327.67 deg/sec

Turning right: -327.68 to 0.00 deg/sec

Turning left: 0.00 to327.67 deg/sec

-

GL1 GX Sensor Higher Resolution Signal

GL1 GX sensor higher resolution signal

Min.: -32768 mG

Max.: 32767 mG

During deceleration:-32768 to 0 mG

During acceleration:0 to 32767 mG

-

GL2 GY Sensor Higher Resolution Signal

GL2 GY sensor higher resolution signal

Min.: -32768 mG

Max.: 32767 mG

Turning right: -32768 to 0 mG

Turning left: 0 to 32767 mG

-

ECU Memory Code1

ECU Memory Code1

Min.: 0, Max.: 65534

-

-

Brakes Specifications Change by C-BEST

Brakes specifications change by C-BEST

None / Exist

-

-

  • *1: for entering inspection mode: Click here 2019 - 2025 MY Corolla Corolla Hatchback Corolla HV GR Corolla [06/2018 -        ]; INTRODUCTION: REPAIR INSTRUCTION: INSPECTION MODE PROCEDURE

    *2: for performing Dealer Mode (Signal Check): Click here 2023 - 2025 MY Corolla Corolla HV [09/2022 -        ]; BRAKE CONTROL / DYNAMIC CONTROL SYSTEMS: ELECTRONICALLY CONTROLLED BRAKE SYSTEM (for HV Model): TEST MODE PROCEDURE

    *3: for entering Dealer Mode (Calibration): Click here 2023 - 2025 MY Corolla Corolla HV [09/2022 -        ]; BRAKE CONTROL / DYNAMIC CONTROL SYSTEMS: ELECTRONICALLY CONTROLLED BRAKE SYSTEM (for HV Model): UTILITY

CLEAR FREEZE FRAME DATA

NOTICE:

Clearing the DTCs will also clear the Freeze Frame Data.

(a) Turn the ignition switch off.

(b) Connect the GTS to the DLC3.

(c) Turn the ignition switch to ON.

(d) Turn the GTS on.

(e) Enter the following menus: Chassis / Brake Booster / Trouble Codes.

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

Chassis > Brake Booster > Clear DTCs

(f) Enter the following menus: Chassis / Brake/EPB* / Trouble Codes.

*: Electric Parking Brake System

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

Chassis > Brake/EPB > Clear DTCs

(g) Press the DTC clear button.