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Freeze Frame Data

  1. FREEZE FRAME DATA 
    1. If a DTC is stored when the brake control system 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 engine switch has been turned from off to on (IG) since the last time the brake control system was activated.

      HINT:

      • The skid control ECU will not count the number of times the engine switch is turned on (IG) if the vehicle does not drive at a speed of at least 7 km/h (4.3 mph) or a DTC is stored.
      • Freeze frame data at the time the brake control system operates: The skid control ECU stores and updates the data whenever the brake control system operates. When the ECU stores data at the time a DTC is stored, the data stored when the brake control system operated may be cleared.
      • Freeze frame data at the time a DTC is stored: When the skid control ECU stores data at the time a DTC is stored, no updates will be performed until the data is cleared.
    2. Connect the Techstream to the DLC3.
    3. Turn the engine switch on (IG).
    4. Turn the Techstream on.
    5. Enter the following menus: Chassis / ABS/VSC/ TRAC / Utility / ABS History.
    6. On the Techstream display, select the freeze frame data.

    ABS History 

    DATA LIST

    Tester Display Measurement Item Reference Value
    Elapsed Time after Freeze Trigger Elapsed time after freeze trigger Min.: 0 ms Max : 500 ms
    Number of IG ON Number of operations of engine switch on (IG) after storing freeze frame data 0 to 31
    Buzzer Skid control buzzer signal Skid control buzzer on: ON, off: OFF
    Stop Lamp SW Stop light switch signal Stop light switch on: ON, off: OFF
    Parking Brake SW Parking brake switch signal Parking brake switch on: ON, off: OFF
    Reservoir Warning SW Brake fluid level warning switch signal Brake fluid level warning switch on: ON, off: OFF
    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
    Operated System Operated system status ABS: ABS activated
    VSC: VSC activated
    TRC: A-TRAC 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
    SYS System prohibited
    NON: No system activated
    Master Cylinder Sensor Master cylinder pressure sensor reading Min.: 0V
    Max.: 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
    Lateral G Lateral G Min.: -25.11 m/s2 , Max.: 24.91 m/s2
    Forward and Rearward G Forward and rearward G Min.:
    -25.11 m/s2 , Max.: 24.91 m/s2
    FR Wheel Speed Front right wheel speed reading Min.: 0 km/h (0 mph), Max.: 326.4 km/h (202 mph)
    FL Wheel Speed Front left wheel speed reading Min.: 0 km/h (0 mph), Max.: 326.4 km/h (202 mph)
    RR Wheel Speed Rear right wheel speed reading Min.: 0 km/h (0 mph), Max.: 326.4 km/h (202 mph)
    RL Wheel Speed Rear left wheel speed reading Min.
    0 km/h (0 mph), Max.: 326.4 km/h (202 mph)
    Vehicle Speed Vehicle speed reading Min.: 0 km/h (0 mph), Max.: 326.4 km/h (202 mph)
    Vehicle Speed Grade Vehicle speed grade reading Min. -25.11 m/s2 , Max.: 24.91 m/s2
    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
    Real Engine Torque Real engine torque Min.: -1024 N*m, Max.: 1023 N*m
    Accelerator Opening Angle % Accelerator opening angle percentage Min.: 0%, Max. 128%
    Steering Angle Sensor Steering angle sensor reading Min.: -3276.8 deg Max. 3276.7 deg
    Pre Crash Brake OFF Switch - OFF
    TRAC/VSC Off Mode TRAC/VSC Off Mode Normal: Normal mode
    TRAC OFF: TRAC OFF mode
    VSC OFF: VSC OFF mode
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