Vehicle Stability Control System (W/O Vdim) Freeze Frame Data

Brake. Lexus Is250, Is220D. Gse20 Ale20
Brake Control. Lexus Is250, Is220D. Gse20 Ale20
  1. FREEZE FRAME DATA

Vehicle Stability Control System (W/O Vdim) -- Freeze Frame Data



FREEZE FRAME DATA
  1. Whenever an ABS DTC is detected, 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 engine switch has been turned from off to on (IG) since the last time the ABS was activated.

    HINT:
    1. However, if the vehicle is stopped or at low speed (4.3 mph (7 km/h) or less), or if a DTC is detected, the skid control ECU will stop counting the number.
    2. 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.
    3. 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 the intelligent tester to the DLC3.

  3. Turn the engine switch on (IG).

  4. From the display on the tester, select the Freeze Frame Data.

    Item (Display)
    Measurement Item
    Reference Value
    Vehicle Speed
    Vehicle speed reading
    Min.: 0 mph (0 km/h), Max.: 202 mph (326.4 km/h)
    Stop Lamp SW
    Stop light switch signal
    Stop light switch ON: ON, OFF: OFF
    Number of IG ON
    Number of operations of engine switch on (IG) after storing Freeze Frame Data
    0 to 31
    Master Cylinder Sensor
    Master cylinder pressure sensor reading
    Brake pedal released: 0.3 to 0.5 V
    M/C Sensor Grade
    Master cylinder pressure sensor change
    Min.: -30 MPa/s, Max.: 225 MPa/s
    Yaw Rate Sensor
    Yaw rate sensor reading
    Min.: -128 deg/s, Max.: 127 deg/s
    Steering Angle Sensor
    Steering angle sensor reading
    Left turn: Increase
    Right turn: Drop
    Forward and Rearward G
    Forward and backward G
    Min.: -25.11 m/s2, Max.: 24.91 m/s2
    Vehicle Speed Grade
    Vehicle speed grade
    Min.: -25.11 m/s2, Max.: 24.91 m/s2
    Buzzer
    Skid control buzzer signal
    Skid control buzzer ON: ON, OFF: OFF
    Accelerator Opening Angle %
    Accelerator opening angle %
    Min.: 0 %, Max.: 128 %
    Parking Brake SW
    Parking brake switch signal
    Parking brake switch ON: ON, OFF: OFF
    FR Wheel Direction
    FR wheel direction signal
    Front right wheel direction
    FORWARD: Forward, BACK: Back
    FL Wheel Direction
    FL wheel direction signal
    Front left wheel direction
    FORWARD: Forward, BACK: Back
    RR Wheel Direction
    RR wheel direction signal
    Rear right wheel direction
    FORWARD: Forward, BACK: Back
    RL Wheel Direction
    RL wheel direction signal
    Rear left wheel direction
    FORWARD: Forward, BACK: Back
    Real Engine Torque
    Real engine torque
    Min.: -1024 Nm, Max.: 1023 Nm
    FR Wheel Speed
    FR wheel speed
    Min.: 0 mph (0 km/h), Max.: 202 mph (326.4 km/h)
    FL Wheel Speed
    FL wheel speed
    Min.: 0 mph (0 km/h), Max.: 202 mph (326.4 km/h)
    RR Wheel Speed
    RR wheel speed
    Min.: 0 mph (0 km/h), Max.: 202 mph (326.4 km/h)
    RL Wheel Speed
    RL wheel speed
    Min.: 0 mph (0 km/h), Max.: 202 mph (326.4 km/h)
    Lateral G
    Lateral G
    Min.: -25.11 m/s2, Max.: 24.91 m/s2
    Gear Position
    Gear position information
    FAIL
    1st
    2nd
    3rd
    4th
    5th
    6th
    P, N
    R
    NOT R
    Shift Lever Position
    Shift lever position information
    FAIL
    1st
    2nd
    3rd
    4th
    5th
    6th/B
    D/M
    P, N
    R
    TRC (TRAC) /VSC OFF SW
    Traction OFF switch signal
    Traction OFF switch ON: OFF, OFF: ON
    Brake Pedal Load Sensing SW
    Brake pedal load sensing switch signal
    Brake pedal load sensing switch ON: ON, OFF: OFF
    Operated System
    Operated system status
    ABS activated: ABS
    VSC activated: VSC
    TRC activated: TRC
    BA activated: BA
    HAB activated: HAB
    PBA activated: PBA
    PB activated: PB
    HAC activated: HAC
    Fail safe mode activated: FAIL
    No system activated: NON
    System prohibited: SYS
    Elapsed Time after Freeze Trigger
    Elapsed time after freeze trigger
    Min.: 0 ms, Max.: 500 ms
    Inspection Mode
    Inspection mode
    Inspection mode OTHER: Normal,
    INSPECT: Service