VEHICLE STABILITY CONTROL SYSTEM FREEZE FRAME DATA

  1. FREEZE FRAME DATA

    1. Whenever an ABS DTC is detected, the skid control ECU (brake actuator assembly) stores the current vehicle (ECU or sensor) state as Freeze Frame Data.

    2. The skid control ECU (brake actuator assembly) stores the number of times (maximum: 31) the ignition switch has been turned from off to ON since the last time the ABS was activated.

      Tip:

      • If the vehicle is stopped or driven at a low speed (7 km/h (4.3 mph) or less), or if a DTC is detected, the skid control ECU (brake actuator assembly) will stop counting the number.

      • Freeze Frame Data at the time the ABS operates:

        The skid control ECU (brake actuator assembly) stores and updates data whenever the ABS operates.

        When the ECU stores data at the time a DTC is detected, the data stored during ABS operation is cleared.

      • Freeze Frame Data at the time a DTC is detected:

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

  2. CHECK 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 / ABS/VSC/TRC / Trouble Codes.

      Chassis > ABS/VSC/TRC > Trouble Codes

    6. Select a DTC to display its Freeze Frame Data.

      Chassis > ABS/VSC/TRC

      Tester Display

      Measurement Item

      Range

      Normal Condition

      Diagnostic Note

      Elapsed Time after Freeze Trigger

      Elapsed time after freeze trigger

      Min.: 0 msec, Max.: 510 msec

      -

      -

      Number of IG ON

      Number of times ignition switch turned to ON after Freeze Frame Data stored

      0 to 31

      -

      -

      Stop Light SW

      Stop light switch

      ON or OFF

      ON: Brake pedal depressed

      OFF: Brake pedal released

      -

      Parking Brake SW

      Parking brake switch

      ON or OFF

      ON: Parking brake applied

      OFF: Parking brake released

      -

      Operated System

      Operated system status

      ABS, VSC, TRC, BA, HAB, PBA, PB, HA-CTRL, TSC, SCB, Fail, Sys or Non

      Actual operated system

      ABS: ABS activated.

      VSC: VSC activated.

      TRC: TRC activated.

      BA: BA activated.

      HAB: High power assist brake activated.*

      PBA: PBA activated.

      PB: PB activated.

      HA-CTRL: Hill-start assist control activated.

      TSC: Trailer sway control activated.*

      SCB: Secondary collision brake is activated.*

      Fail: Fail-safe mode activated.

      Sys: System prohibit activated.

      Non: No operation activated.

      Tip:

      *: Not supported

      Master Cylinder Sensor

      Master cylinder pressure sensor reading

      Min.: 0.00 V, Max.: 5.00 V

      Brake pedal released: 0.20 to 0.40 V

      Reading increases when brake pedal is depressed

      M/C Sensor Grade

      Master cylinder pressure sensor change

      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

      Yaw Rate Sensor

      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

      -

      Lateral G

      Lateral G

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

      -

      During turning: Changes in proportion with lateral acceleration

      Forward and Rearward G

      Forward and backward G

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

      -

      During acceleration/deceleration: Changes in proportion with acceleration

      FR Wheel Speed

      Front wheel speed sensor RH reading

      Min.: 0 km/h (0 mph), Max.: 326 km/h (202 mph)

      Vehicle stopped: 0 km/h (0 mph)

      When driving at constant speed: No large fluctuations

      FL Wheel Speed

      Front wheel speed sensor LH reading

      Min.: 0 km/h (0 mph), Max.: 326 km/h (202 mph)

      Vehicle stopped: 0 km/h (0 mph)

      When driving at constant speed: No large fluctuations

      RR Wheel Speed

      Rear wheel speed sensor RH reading

      Min.: 0 km/h (0 mph), Max.: 326 km/h (202 mph)

      Vehicle stopped: 0 km/h (0 mph)

      When driving at constant speed: No large fluctuations

      RL Wheel Speed

      Rear wheel speed sensor LH reading

      Min.: 0 km/h (0 mph), Max.: 326 km/h (202 mph)

      Vehicle stopped: 0 km/h (0 mph)

      When driving at constant speed: No large fluctuations

      Vehicle Speed

      Maximum wheel speed sensor reading

      Min.: 0 km/h (0 mph), Max.: 326 km/h (202 mph)

      Vehicle stopped: 0 km/h (0 mph)

      When driving at constant speed: No large fluctuations

      Vehicle Speed Grade

      Vehicle speed grade

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

      Vehicle stopped: 0 m/s2

      During driving: Changes in proportion with vehicle acceleration/deceleration

      Real Engine Torque

      Real engine torque

      Min.: -1024.0 Nm, Max.: 1023.0 Nm

      -

      -

      Accelerator Opening Angle %

      Percentage of accelerator pedal opening angle

      Min.: 0.0%, Max.: 127.5%

      The accelerator pedal released: 0%

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

      Inspection Mode

      Inspection mode

      Other or Inspect

      Other: Normal mode

      Inspect: Inspection mode

      -

      Steering Angle Sensor

      Steering angle sensor

      Min.: - 3276.8°, Max.: 3276.7°

      Turning left: Increase

      Turning right: Decrease

      -

      TRC/VSC Off Mode

      TRC/VSC off mode

      Normal, TRC OFF or VSC OFF

      Normal: Normal mode

      TRC OFF: TRC off mode

      VSC OFF: VSC off mode

      -

  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. Clear the DTCs and Freeze Frame Data.

      Click here

      Chassis > ABS/VSC/TRC > Clear DTCs