Vehicle Stability Control System Freeze Frame Data

  1. FREEZE FRAME DATA

  1. CHECK FREEZE FRAME DATA

  1. CLEAR FREEZE FRAME DATA

Vehicle Stability Control System -- 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.

  2. 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.

    HINT:
    1. If the vehicle is stopped or driven at a low speed (7 km/h (4.3 mph) 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.

CHECK FREEZE FRAME DATA

  1. Turn the ignition switch off.

  2. Connect the intelligent tester to the DLC3.

  3. Turn the ignition switch to ON.

  4. Turn the intelligent tester on.

  5. Enter the following menus: Chassis / ABS/VSC/TRC / DTC.

  6. According to the display on the tester, select the DTC data display with Freeze Frame Data.

    ABS/VSC/TRC:
    Tester Display
    		Measurement Item
    		Reference Value
    Elapsed Time after Freeze Trigger
    		Elapsed time after freeze frame trigger
    		Min.: 0 msec
    Max.: 500 msec
    Number of IG ON
    		Number of operations of ignition switch being turned on after storing Freeze Frame Data
    		0 to 31
    Stop Light SW
    		Stop light switch signal
    		Stop light switch ON: ON
    Stop light switch OFF: OFF
    Parking Brake SW
    		Parking brake switch signal
    		Parking brake switch ON: ON
    Parking brake switch OFF: OFF
    Gear Position
    		Gear position information
    		Fail
    1st
    2nd
    3rd
    4th
    5th
    6th
    7th
    8th
    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: TRC activated
    BA: BA activated
    HAB: HAB activated
    PBA: PBA activated
    PB: PB activated
    HA-CTRL: Hill-start assist control activated
    Fail: Fail-safe mode activated
    Sys: System prohibit activated
    Non: No operation activated
    Master Cylinder Sensor
    		Master cylinder pressure sensor reading
    		Min.: 0 V
    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°/s
    Max.: 127°/s
    Lateral G
    		Lateral acceleration
    		Min.: -25.10 m/s2
    Max.: 24.90 m/s2
    Forward and Rearward G
    		Forward and backward acceleration
    		Min.: -25.10 m/s2
    Max.: 24.90 m/s2
    FR Wheel Speed
    		Front wheel RH speed
    		Min.: 0 km/h (0 mph)
    Max.: 326 km/h (202 mph)
    FL Wheel Speed
    		Front wheel LH speed
    		Min.: 0 km/h (0 mph)
    Max.: 326 km/h (202 mph)
    RR Wheel Speed
    		Rear wheel RH speed
    		Min.: 0 km/h (0 mph)
    Max.: 326 km/h (202 mph)
    RL Wheel Speed
    		Rear wheel LH speed
    		Min.: 0 km/h (0 mph)
    Max.: 326 km/h (202 mph)
    Vehicle Speed
    		Vehicle speed reading
    		Min.: 0 km/h (0 mph)
    Max.: 326 km/h (202 mph)
    Vehicle Speed Grade
    		Vehicle acceleration
    		Min.: -25.10 m/s2
    Max.: 24.90 m/s2
    Real Engine Torque
    		Real engine torque
    		Min.: -1024 Nm
    Max.: 1023 Nm
    Accelerator Opening Angle %
    		Throttle valve opening angle as a percentage
    		Min.: 0%
    Max.: 100%
    Brake Pedal Load Sensing SW
    		Brake pedal load sensing switch signal
    		Brake pedal load sensing switch ON: ON
    Brake pedal load sensing switch OFF: OFF
    Inspection Mode
    		Inspection mode
    		Other: Normal mode
    Inspect: Inspection mode
    Steering Angle Sensor
    		Steering angle sensor reading
    		Min.: -3276.8°
    Max.: 3276.7°
    TRC/VSC Off Mode
    		TRC/VSC off mode
    		Normal: Normal mode
    TRC OFF: TRC off mode
    VSC OFF: VSC off mode


CLEAR FREEZE FRAME DATA
NOTICE:
Clearing the DTCs will also clear the Freeze Frame Data.

  1. Turn the ignition switch off.

  2. Connect the intelligent tester to the DLC3.

  3. Turn the ignition switch to ON.

  4. Clear the DTCs and Freeze Frame Data (Toyota Fortuner RM000000XHV09NX.html).