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Freeze Frame Data

  1. FREEZE FRAME DATA 
    1. Whenever a DTC is detected or the ABS 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 ignition switch has been turned from off to the ON position since the last time the ABS was activated.

      HINT:

      • However, if the vehicle was stopped or at low speed (7 km/h (4.3 mph) or less), or if a DTC is detected, the skid control ECU will not count the number since then.
      • 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 when the ABS operated 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. Connect Techstream to the DLC3.
    3. Turn the ignition switch to the ON position.
    4. On the tester display, select the the following menu items:

      ABS/VSC/TRAC 

      Chassis/ABS/VSC/TRAC/Utility/ABS History.

      MEASUREMENT ITEM CHART

      Tester Display Measurement Item Reference Value
      Freeze DTC Freeze DTC (Trouble code) 0 to 65535
      Stop Light SW Stop light switch signal Stop light switch ON. ON, OFF. OFF
      Shift Lever Position Shift lever position FAIL
      P, N
      R
      D/M
      4
      3
      2
      L
      Operated System System status ABS activated ABS
      VSC/TRAC activated VSC/TRAC
      BA activated BA
      No system activated NO SYS
      Number of IG ON Number of operations of ignition switch ON after memorizing freeze frame data 0 to 31
      Vehicle Speed Vehicle speed reading min 0 km/h (0 mph), max 326 4 km/h (202 mph)
      Steering Angle Sensor Steering angle sensor reading min -1152
      max 1143
      Yaw Rate Sensor Yaw rate sensor reading min -128 °/s, max. 127 °/s
      Master Cylinder Sensor Master cylinder pressure sensor reading Brake pedal released 0 3 to 0 9 V
      Brake pedal depressed 0 8 to 4 5 V
      Master Cylinder Grade Master cylinder pressure sensor change min -30 MPa/s, max 225 MPa/s
      Right and left G Right and left G min -1 869 G, max 1 869 G
      Back and forth G Back and forth G min -1 869 G, max 1 869 G
      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
      Throttle sensor Throttle position sensor reading Accelerator pedal released approx 0%
      Accelerator pedal depressed approx 100%
      Buzzer Skid control buzzer signal Skid control buzzer ON ON, OFF OFF
      Reservoir Warning SW Brake fluid level warning switch signal Brake fluid level warning switch ON ON, OFF OFF
      Parking Brake SW Parking brake switch signal Parking brake switch ON ON, OFF OFF
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