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Freeze Frame Data

  1. FREEZE FRAME DATA 

    HINT:

    • When 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 ON since the last time the ABS was activated. However, if the vehicle is stopped, the vehicle is driven at 7 km/h (4.3 mph) or less, or a DTC is detected, the ECU will not count the next time the ignition switch is turned from OFF to ON.
    • Freeze frame data at the time the ABS operates: The skid control ECU stores data or updates stored data when the ABS operates. This data is erased when the ECU stores data at the time a DTC is detected.
    • Freeze frame data at the time a DTC is detected: When the ECU stores data at the time a DTC is detected, the data will not be updated until the data is cleared.
    1. Connect the intelligent tester (with CAN VIM) to the DLC3.
    2. Turn the ignition switch ON.
    3. From the display on the tester, select FREEZE FRAME DATA.
      FREEZE FRAME DATA

      Intelligent Tester Display Measurement Item Reference Value
      VEHICLE SPD Wheel speed sensor reading Speed indicated on speedometer
      STOP LIGHT SW Stop light switch signal Stop light switch ON: ON Stop light switch OFF: OFF
      #IGON Number of operations of ignition switch ON after memorizing freeze frame data 0 to 31
      MAS CYL PRESS Master cylinder pressure sensor output voltage Release brake pedal: 0.3 to 0.9 V
      Depress brake pedal: 3.2 to 4.5 V
      MASS PRESS GRAD Master cylinder pressure sensor changing declivity -30 to 200 MPa/s
      SYSTEM Operate system ABS activated: ABS
      BA activated: BA
      VSC / TRAC activated: VSS / TRC
      No system activated: No SYS
      Fail-safe mode activated: FAIL SF
      YAW RATE Yaw rate angle sensor output value -100 to 100
      STEERING ANG Steering sensor output value Left turn: Increase
      Right turn: Drop
      THROTTLE Throttle position sensor output value Release accelerator pedal: Approx. 0 deg.
      Depress accelerator pedal: Approx. 90 deg.
      G (RIGHT & LEFT) Right and left G -1,869 to 1,869
      G (BACK & FORTH) Back and forth G -1,869 to 1,869
      VAC (TRC) OFF SW VSC OFF switch signal VSC OFF SW ON: ON OFF: OFF
      SHIFT POSITION Shift lever position P:P
      R:R
      N:N
      D:D
      4:4
      3:3
      2:2
      L:L
      THROTTLE Throttle sensor reading 0 to 125 deg.
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