VEHICLE STABILITY CONTROL SYSTEM FREEZE FRAME DATA


  1. FREEZE FRAME DATA


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

    2. The skid control ECU 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.

      Tech Tips


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

      • Freeze Frame Data at the time the ABS operates:

        The skid control ECU stores and updates data whenever the ABS system operates.

        When the ECU stores data at the time a DTC is detected, the data stored during ABS operation is 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. CHECK FREEZE FRAME DATA


    1. Connect the GTS to the DLC3.

    2. Turn the ignition switch to ON.

    3. Turn the GTS on.

    4. Enter the following menus: Chassis / ABS/VSC/ TRC / Trouble Codes.

    5. According to the display on the GTS, select the trouble code data display with Freeze Frame Data.

      ABS/VSC/TRC
      GTS Display Measurement Item/Range Normal Condition Diagnostic Note
      Elapsed Time after Freeze Trigger

      Elapsed time after freeze trigger

      Min.: 0 msec

      Max.: 500 msec

      		 - -
      Number of IG ON

      Number of operations of ignition switch being turned to ON after storing Freeze Frame Data

      0 to 31

      		 - -
      Stop Light SW

      Stop light switch

      OFF or ON

      OFF: Brake pedal released

      ON: Brake pedal depressed

      		 -
      Parking Brake SW

      Parking brake switch

      OFF or ON

      OFF: Parking brake released

      ON: Parking brake applied

      		 -
      Shift Lever Position

      Shift lever position information

      Fail, 1st-6th/B, D/M, P,N or R

      		 Actual shift lever position -
      Operated System

      Operated system status

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

      		 -

      Non: No system activated

      ABS: ABS activated

      VSC: VSC activated

      TRC: TRC activated

      BA: BA activated

      HAB: HAB activated

      Fail: Fail safe mode activated

      PBA: PBA activated

      PB: PB activated

      HA-CTRL: Hill-start assist control activated

      TSC: TSC activated

      Sys: System prohibited
      Master Cylinder Sensor

      Master cylinder pressure sensor reading

      Min.: 0.00 V

      Max.: 5.00 V

      		 When brake pedal is released: 0.30 to 0.90 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

      		 When brake pedal is released or pedal held at constant position: 0 MPa/s When brake pedal is being operated: Changes in proportion with 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 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: 0.00 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 %

      The difference of a present accelerator

      Min.: 0.0%

      Max.: 128.0%

      		 When the accelerator pedal is released: 0.0% 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°

      Left turn: Increase

      Right turn: 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 DTC will also clear the Freeze Frame Data.


    1. Connect the GTS to the DLC3.

    2. Turn the ignition switch to ON.

    3. Clear the DTC and Freeze Frame Data Click here.