ELECTRONICALLY CONTROLLED BRAKE SYSTEM FREEZE FRAME DATA


  1. FREEZE FRAME DATA


    1. If a DTC is detected when the ABS, BA, TR(A)C or VSC operates, the skid control ECU stores the current vehicle (sensor) state as freeze frame data.

      The skid control ECU stores the number of times (maximum: 31) the power switch has been turned from OFF to ON (IG) since the last time the ABS, BA, TR(A)C or VSC was activated.

      Tech Tips


      • The skid control ECU will not count the number of times the power switch is turned ON (IG) if the vehicle does not drive at a speed of at least 7 km/h (4.3 mph), or a DTC is detected.

      • Freeze frame data at the time the ABS, BA, TR(A)C or VSC operates:

        The skid control ECU stores and updates the data whenever the ABS, BA, TR(A)C or VSC system operates.

        When the ECU stores data at the time a DTC is detected, the data stored when the ABS, BA, TR(A)C or VSC operated may be erased.

      • Freeze frame data at the time a DTC is detected:

        When the skid control ECU stores data at the time a DTC is detected, no updates will be performed until the data is cleared.

    2. Connect the intelligent tester to the DLC3.

    3. Turn the power switch ON (IG).

    4. From the display on the tester, select the FREEZE FRAME DATA.

      Skid control ECU:
      Intelligent Tester Display Measurement Item Reference Value
      Detailed Freeze DTC Detailed code for freeze frame DTC Min.: 0, Max.: 65535
      Elapsed Time after Freeze Trigger Elapsed time after freeze trigger Min.: 0 msec, Max.: 500 msec
      Number of IG ON Number of operations of power switch ON (IG) after storing freeze frame data 0 to 31
      Elapsed Time Elapsed time after power switch on (IG) Min.: 0 sec, Max.: 100661 sec
      Buzzer Skid control buzzer signal Skid control buzzer ON: ON, OFF: OFF
      Stop Light SW Stop light switch signal Stop light switch ON: ON, OFF: OFF
      Parking Brake SW Parking brake switch signal Parking brake switch ON: ON, OFF: OFF
      TRC(TRAC)/VSC OFF SW VSC OFF switch signal VSC OFF switch ON: ON, OFF: OFF
      Reservoir Warning SW Brake fluid level warning switch signal Brake fluid level warning switch ON: ON, OFF: OFF
      Shift Lever Position Shift lever position information

      Fail

      1st

      2nd

      3rd

      4th

      5th

      6th/B

      D/M

      P,N

      R
      Operated System Operated system status

      ABS activated: ABS

      VSC activated: VSC

      TR(A)C activated: TRC

      BA activated: BA

      HAB activated: HAB

      Fail-safe mode activated: Fail

      PBA activated: PBA

      PB activated: PB

      Hill-start assist control activated: HA-CTRL

      TSC activated: TSC

      System prohibited: Sys

      No system activated: Non
      Master Cylinder Sensor Master cylinder pressure sensor reading Min.: 0.00 V, Max.: 5.00 V
      M/C Sensor Grade Master cylinder pressure sensor change Min.: -30 MPa/s, Max.: 255 MPa/s
      Master Cylinder Sensor2 Master cylinder pressure sensor reading Min.: 0.00 V, Max.: 5.00 V
      Stroke Sensor Stroke sensor reading Min.: 0.00 V, Max.: 5.00 V
      Stroke Sensor2 Stroke sensor 2 reading Min.: 0.00 V, Max.: 5.00 V
      Accumulator Sensor Accumulator pressure sensor reading Min.: 0.00 V, Max.: 5.00 V
      Yaw Rate Sensor Yaw rate sensor reading Min.: -128 °/s, Max.: 127 °/s
      FR W/C Sensor Front wheel cylinder pressure sensor RH reading Min.: 0.00 V, Max.: 5.00 V
      FL W/C Sensor Front wheel cylinder pressure sensor LH reading Min.: 0.00 V, Max.: 5.00 V
      RR W/C Sensor Rear wheel cylinder pressure sensor RH reading Min.: 0.00 V, Max.: 5.00 V
      RL W/C Sensor Rear wheel cylinder pressure sensor LH reading Min.: 0.00 V, Max.: 5.00 V
      Lateral G Lateral G

      Min.: -25.10 m/s2, Max.: 24.90 m/s2

      Forward and Rearward G Forward and rearward G

      Min.: -25.10 m/s2, Max.: 24.90 m/s2

      FR Wheel Speed Front right wheel speed reading Min.: 0 km/h (0 mph), Max.: 326 km/h (202 mph)
      FL Wheel Speed Front left wheel speed reading Min.: 0 km/h (0 mph), Max.: 326 km/h (202 mph)
      RR Wheel Speed Rear right wheel speed reading Min.: 0 km/h (0 mph), Max.: 326 km/h (202 mph)
      RL Wheel Speed Rear left wheel speed reading Min.: 0 km/h (0 mph), Max.: 326 km/h (202 mph)
      Vehicle Speed Vehicle speed reading Min.: 0 km/h (0 mph), Max.: 326 km/h (202 mph)
      FR Wheel Direction Front right wheel direction signal

      Front right wheel direction

      Forward: Forward, Back: Back
      FL Wheel Direction Front left wheel direction signal

      Front left wheel direction

      Forward: Forward, Back: Back
      RR Wheel Direction Rear right wheel direction signal

      Rear right wheel direction

      Forward: Forward, Back: Back
      RL Wheel Direction Rear left wheel direction signal

      Rear left wheel direction

      Forward: Forward, Back: Back
      Accelerator Opening Angle % Accelerator opening angle % Min.: 0.0%, Max.: 128.0%
      Electronically Controlled Brake System Motor Relay Electronically controlled brake system motor relay signal Electronically controlled brake system motor relay ON: ON, OFF: OFF
      Electronically Controlled Brake System Motor Relay2 Electronically controlled brake system motor relay 2 signal Electronically controlled brake system motor relay 2 ON: ON, OFF: OFF
      Electronically Controlled Brake System Main Relay Electronically controlled brake system main relay signal Electronically controlled brake system main relay ON: ON, OFF: OFF
      Electronically Controlled Brake System Main Relay2 Electronically controlled brake system main relay 2 signal Electronically controlled brake system main relay 2 ON: ON, OFF: OFF
      Electronically Controlled Brake System Solenoid (SMC1) Electronically controlled brake system solenoid (SMC1) signal Electronically controlled brake system solenoid (SMC1) ON: ON, OFF: OFF
      Electronically Controlled Brake System Solenoid (SMC2) Electronically controlled brake system solenoid (SMC2) signal Electronically controlled brake system solenoid (SMC2) ON: ON, OFF: OFF
      Electronically Controlled Brake System Solenoid (SCSS) Electronically controlled brake system solenoid (SCSS) signal Electronically controlled brake system solenoid (SCSS) ON: ON, OFF: OFF
      Capacitor Mode Capacitor mode Capacitor mode ON: ON, OFF: OFF
      IG1 Voltage Value IG1 voltage value Min.: 0.00 V, Max.: 20.00 V
      IG2 Voltage Value IG2 voltage value Min.: 0.00 V, Max.: 20.00 V
      BS1 Voltage Value BS1 voltage value Min.: 0.00 V, Max.: 20.00 V
      BS2 Voltage Value BS2 voltage value Min.: 0.00 V, Max.: 20.00 V
      VM1 Voltage Value VM1 voltage value Min.: 0.00 V, Max.: 20.00 V
      VM2 Voltage Value VM2 voltage value Min.: 0.00 V, Max.: 20.00 V
      +B1 Voltage Value +B1 voltage value Min.: 0.00 V, Max.: 20.00 V
      +B2 Voltage Value +B2 voltage value Min.: 0.00 V, Max.: 20.00 V
      Motor Relay Voltage Value Motor relay voltage value Min.: 0.00 V, Max.: 20.00 V
      SLAFR Solenoid Current SLAFR solenoid current Min.: 0.00 A, Max.: 1.50 A
      SLAFL Solenoid Current SLAFL solenoid current Min.: 0.00 A, Max.: 1.50 A
      SLARR Solenoid Current SLARR solenoid current Min.: 0.00 A, Max.: 1.50 A
      SLARL Solenoid Current SLARL solenoid current Min.: 0.00 A, Max.: 1.50 A
      SLRFR Solenoid Current SLRFR solenoid current Min.: 0.00 A, Max.: 1.50 A
      SLRFL Solenoid Current SLRFL solenoid current Min.: 0.00 A, Max.: 1.50 A
      SLRRR Solenoid Current SLRRR solenoid current Min.: 0.00 A, Max.: 1.50 A
      SLRRL Solenoid Current SLRRL solenoid current Min.: 0.00 A, Max.: 1.50 A
      FR Target Oil Pressure Front right wheel target oil pressure reading Min.: 0.00 MPa, Max.: 20.00 MPa
      FL Target Oil Pressure Front left wheel target oil pressure reading Min.: 0.00 MPa, Max.: 20.00 MPa
      RR Target Oil Pressure Rear right wheel target oil pressure reading Min.: 0.00 MPa, Max.: 20.00 MPa
      RL Target Oil Pressure Rear left wheel target oil pressure reading Min.: 0.00 MPa, Max.: 20.00 MPa
      Inspection Mode Inspection Mode

      Other: Normal

      Inspect: Abnormal
      Steering Angle Sensor Steering angle sensor reading Min.: -3276.8°, Max.: 3276.7°
      VCM1 Voltage Value VCM1 voltage value Min.: 0.00 V, Max.: 10.00 V
      VCM2 Voltage Value VCM2 voltage value Min.: 0.00 V, Max.: 10.00 V
      TRC/VSC Off Mode TR(A)C/VSC Off Mode

      Normal mode

      TR(A)C OFF mode

      VSC OFF mode
      Brake Hold Control Brake Hold Control Status

      OFF

      Hold

      Release

      Electric Parking Brake
      Voltage of Stroke Sensor Voltage of brake pedal stroke sensor Min.: -2.50 V, Max.: 2.49 V
      Voltage of Stroke Sensor2 Voltage of brake pedal stroke sensor 2 Min.: -2.50 V, Max.: 2.49 V