VEHICLE STABILITY CONTROL SYSTEM > FREEZE FRAME DATA

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FREEZE FRAME DATA

  1. Whenever a DTC is detected of 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 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 "FREEZE FRAME DATA".

    Intelligent Tester 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 0.9 V
    Brake pedal depressed: 0.8 to 4.5 V
    M/C Sensor Grade
    		Master cylinder pressure sensor change
    		Min.: -30 MPa/s, Max.: 200 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
    		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 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
    TR(A)C/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
    TR(A)C activated: TR(A)C
    BA activated: BA
    HAB activated: HAB
    PBA activated: PBA
    PB activated: PB
    HAC activated: HAC
    Fail safe mode activated: FAIL
    No system activated: SYS
    Elapsed Time after Freeze Trigger
    		Elapsed time after freeze trigger
    		Min.: 0 ms, Max.: 500 ms
    Frame Number
    		Frame number
    		Min.: 0, Max.: 255