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Home >> Toyota >> 2020 >> Corolla L >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 45 (Electronically Controlled Brake System (HEV) - Diagnostics - Introduction (1 Of 2)) >> ELECTRONICALLY CONTROLLED BRAKE SYSTEM (for HV Model) >> Freeze Frame Data [09/2022 - ] >> Freeze Frame Data [09/2022 - ]

Freeze Frame Data [09/2022 - ]

WARNING: This page is about a different variant/trim than selected.
  1. FREEZE FRAME DATA/INFORMATION 
    1. Using the GTS, check the vehicle condition (ECU, sensor) when the brake system operates or a DTC is output.
  2. CHECK FREEZE FRAME DATA AND INFORMATION WHEN DTC WAS STORED 
    1. Freeze Frame Data is stored when a DTC is output.
    2. Once Freeze Frame Data is stored when a DTC is output, it is not updated or cleared until the DTC is cleared.
    3. 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. *1: for entering inspection mode: Refer to INSPECTION MODE PROCEDURE [06/2018 - ]

      *2: for performing Dealer Mode (Signal Check): Refer to TEST MODE PROCEDURE [09/2022 - ] 

      *3: for entering Dealer Mode (Calibration): Refer to UTILITY [09/2022 - ] 

  3. CLEAR FREEZE FRAME DATA 
    NOTE:

    Clearing the DTCs will also clear the Freeze Frame Data.

    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.

      Refer to DTC CHECK / CLEAR [09/2022 - ] 

      Chassis > Brake Booster > Clear DTCs 

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

      *: Electric Parking Brake System

      Refer to DTC CHECK / CLEAR [09/2022 - ] 

      Chassis > Brake/EPB > Clear DTCs 

    7. Press the DTC clear button.
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