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Freeze Frame Data Of Abs

  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. If the maximum of 31 is exceeded, the display will remain at 31.
    • Freeze frame data at the time the ABS operates:

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

    1. Connect the intelligent tester II to the DLC3.
    2. Turn the ignition switch ON.
    3. From the display on the tester, select the FREEZE FRAME DATA.
      REFERENCE VALUE

      Hand-held tester display Measurement Item Reference Value
      VEHICLE SPD Wheel speed sensor reading Speed indicated on speedometer
      STOP LIGHT SW Stop lamp switch signal Stop lamp switch ON: ON, OFF: OFF
      #IG ON Number of operations of ignition switch ON after memorizing freeze frame data 0 to 31
      MAS CYL PRESS Master cylinder pressure sensor reading Brake pedal released : 0.3 to 0.9 V
      Brake pedal depressed: 0.8 to 4.5 V
      MASS PRESS GRADE Master cylinder pressure sensor change -30 to 200 MPa/s
      SYSTEM System status ABS activated: ABS
      VSCATRAC activated: VSCATRAC
      BA activated: BA
      Fail-safe mode activated: FAIL SF
      No system activated: NO SYS
      YAW RATE Yaw rate sensor reading -100 to 100
      STEERING ANG Steering sensor reading Left turn: Increase
      Right turn: Decrease
      THROTTLE Throttle position sensor reading 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
      VSC (TRAC) OFF SW VSC OFF switch signal TRAC OFF SW ON: ON
      TRAC OFF SW OFF: OFF
      SHIFT POSITION Shift lever position FAIL
      P(1), N(1)
      R
      D
      2
      L
      (1) The A/C switch is OFF and all accessory switches are OFF.
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