VEHICLE STABILITY CONTROL SYSTEM FREEZE FRAME DATA


  1. FREEZE FRAME DATA


    1. Whenever an ABS DTC is detected, the skid control ECU (brake actuator assembly) stores the current vehicle (ECU or sensor) state as Freeze Frame Data.

    2. The skid control ECU (brake actuator assembly) 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.

      Tech Tips


      • 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 (brake actuator assembly) will stop counting the number.

      • Freeze Frame Data at the time the ABS operates:

        The skid control ECU (brake actuator assembly) stores and updates data whenever the ABS operates.

        When the ECU stores data at the time a DTC is detected, the data stored during ABS operation is cleared.

      • Freeze Frame Data at the time a DTC is detected:

        When the skid control ECU (brake actuator assembly) stores data at the time a DTC is detected, no updates will be performed until the data is cleared.

  2. CHECK FREEZE FRAME DATA


    1. Turn the ignition switch off.

    2. Connect the GTS to the DLC3.

    3. Turn the ignition switch to ON.

    4. Turn the GTS on.

    5. Enter the following menus: Chassis / ABS/VSC/TRC/EPB / Trouble Codes.


      Chassis > ABS/VSC/TRC/EPB > Trouble Codes

    6. Select a DTC to display its Freeze Frame Data.


      Chassis > ABS/VSC/TRC/EPB
      Tester Display Measurement Item Range Normal Condition Diagnostic Note
      Elapsed Time after Freeze Trigger Elapsed time after freeze trigger Min.: 0 msec, Max.: 510 msec - -
      Number of IG ON Number of times ignition switch turned to ON after Freeze Frame Data stored 0 to 31 - -
      Buzzer Meter buzzer ON or OFF OFF: Buzzer off No change
      Stop Light SW Stop light switch ON or OFF

      ON: Brake pedal depressed

      OFF: Brake pedal released

      		 -
      Parking Brake SW Parking brake switch ON or OFF

      ON: Parking brake applied

      OFF: Parking brake released

      		 -
      Gear Position Gear position information P/N, R, 1st-8th, Fail or Not R Actual gear position for Continuously Variable Transaxle
      Shift Lever Position Shift lever position information P/N, R, D/M, 1st-6th/B or Fail Actual shift lever position for Continuously Variable Transaxle
      Operated System Operated system status Non, ABS, VSC, TRC, BA, HAB, Fail, PBA, PB, HA-CTRL, TSC, MCB, Sys Actual operated system

      Non: No operation is activated.

      ABS: ABS is activated.

      VSC: VSC is activated.

      TRC: TRC is activated.

      BA: BA is activated.

      HAB: HAB is activated.*

      Fail: Fail safe mode is activated.

      PBA: PBA is activated.

      PB: PB is activated.*

      HA-CTRL: Hill-start assist control is activated.

      TSC: Trailer sway control activated*

      MCB: SCB is activated.*

      Sys: System prohibit is activated.
      Master Cylinder Sensor Master cylinder pressure sensor reading Min.: 0.00 V, Max.: 5.00 V Brake pedal released: 0.20 to 0.40 V Reading increases when brake pedal is depressed
      M/C Sensor Grade Master cylinder pressure sensor change Min.: -30 MPa/s, Max.: 225 MPa/s Brake pedal released or pedal held at constant position: 0 MPa/s When brake pedal is being operated: Changes in proportion with the pedal movement speed
      Yaw Rate Sensor Yaw rate sensor Min.: -128°/s, Max.: 127°/s

      Vehicle stopped: 0°/s

      Turning right: -128 to 0°/s

      Turning left: 0 to 127°/s

      		 -
      Lateral G Lateral G

      Min.: -25.10 m/s2, Max.: 24.90 m/s2

      		- During turning: Changes in proportion with lateral acceleration
      Forward and Rearward G Forward and backward G

      Min.: - 25.10 m/s2, Max.: 24.90 m/s2

      		- During acceleration/deceleration: Changes in proportion with acceleration
      FR Wheel Speed Front wheel speed sensor RH reading Min.: 0 km/h (0 mph), Max.: 326 km/h (202 mph) Vehicle stopped: 0 km/h (0 mph) When driving at constant speed: No large fluctuations
      FL Wheel Speed Front wheel speed sensor LH reading Min.: 0 km/h (0 mph), Max.: 326 km/h (202 mph) Vehicle stopped: 0 km/h (0 mph) When driving at constant speed: No large fluctuations
      RR Wheel Speed Rear wheel speed sensor RH reading Min.: 0 km/h (0 mph), Max.: 326 km/h (202 mph) Vehicle stopped: 0 km/h (0 mph) When driving at constant speed: No large fluctuations
      RL Wheel Speed Rear wheel speed sensor LH reading Min.: 0 km/h (0 mph), Max.: 326 km/h (202 mph) Vehicle stopped: 0 km/h (0 mph) When driving at constant speed: No large fluctuations
      Vehicle Speed Maximum wheel speed sensor reading Min.: 0 km/h (0 mph), Max.: 326 km/h (202 mph) Vehicle stopped: 0 km/h (0 mph) When driving at constant speed: No large fluctuations
      Vehicle Speed Grade Vehicle speed grade

      Min.: -25.10 m/s2, Max.: 24.90 m/s2

      Vehicle stopped: 0 m/s2

      		During driving: Changes in proportion with vehicle acceleration/deceleration
      FR Wheel Direction Front wheel RH direction signal Forward or Back

      Forward: Forward

      Back: Backward

      		 -
      FL Wheel Direction Front wheel LH direction signal Forward or Back

      Forward: Forward

      Back: Backward

      		 -
      RR Wheel Direction Rear wheel RH direction signal Forward or Back

      Forward: Forward

      Back: Backward

      		 -
      RL Wheel Direction Rear wheel LH direction signal Forward or Back

      Forward: Forward

      Back: Backward

      		 -
      Real Engine Torque Actual engine torque Min.: -1024.0 Nm, Max.: 1023.0 Nm - -
      Accelerator Opening Angle % Percentage of accelerator pedal opening angle Min.: 0.0%, Max.: 127.5% The accelerator pedal released: 0% During accelerator pedal operation: Changes in proportion with the pedal movement
      Brake Pedal Load Sensing SW Brake pedal load sensing switch ON or OFF

      ON: Brake pedal depressed

      OFF: Brake pedal released

      		 -
      Inspection Mode Inspection mode Other or Inspect

      Other: Normal mode

      Inspect: Inspection mode

      		 -
      Steering Angle Sensor Steering angle sensor Min.: - 3276.8°, Max.: 3276.7°

      Left turn: Increase

      Right turn: Decrease

      		 -
      TRC/VSC Off Mode TRC/VSC off mode Normal, TRC OFF, VSC Expert Mode, VSC OFF

      Normal: Normal mode

      TRC OFF: TRC off mode

      VSC OFF: VSC off mode

      		 -
      Vehicle Speed (Control Value)

      Vehicle speed

      (control value)

      Min.: 0.0 km/h (0.0 MPH)

      Max.: 326.4 km/h (202.8 MPH)

      		 - -
      ECU +B1 Voltage

      skid control ECU

      (brake actuator assembly) +B1 voltage

      		 0.00 to 20.00 V 11 to 14 V -
      RH Actuator Motor Input Voltage Parking brake motor RH (parking brake actuator assembly RH) input voltage 0.00 to 20.00 V - -
      RH Actuator Motor +Terminal Voltage Parking brake motor RH (parking brake actuator assembly RH) positive (+) terminal side voltage 0.00 to 20.00 V - -
      RH Actuator Motor -Terminal Voltage Parking brake motor RH (parking brake actuator assembly RH) negative (-) terminal side voltage 0.00 to 20.00 V - -
      LH Actuator Motor Input Voltage Parking brake motor LH (parking brake actuator assembly LH) input voltage 0.00 to 20.00 V - -
      LH Actuator Motor +Terminal Voltage Parking brake motor LH (parking brake actuator assembly LH) positive (+) terminal side voltage 0.00 to 20.00 V - -
      LH Actuator Motor -Terminal Voltage Parking brake motor LH (parking brake actuator assembly LH) negative (-) terminal side voltage 0.00 to 20.00 V - -
      EPB Switch Electric parking brake switch assembly input OFF, Lock, Release or Unknown

      OFF: Lock switch and release switch are off

      Lock: Lock switch on Release: Release switch on

      When not normal, electric parking brake switch assembly release side system may be malfunctioning

      Tech Tips

      EPB stands for electric parking brake.
      Auto Mode Request Auto mode request status OFF or ON - -
      Shift Position Position of shift lever P, N, R, D or Unknown

      P: Shift lever in P

      N: Shift lever in N

      R: Shift lever in R

      D: Shift lever in D or M

      		 for Continuously Variable Transaxle
      IG Switch IG power source status OFF or ON

      OFF: IG power source voltage is not input to skid control ECU (brake actuator assembly)

      ON: IG power source voltage is input to skid control ECU (brake actuator assembly)

      		 -
      Brake Hold Ready Brake hold control permission status OFF or ON - -
      Brake Hold Control Mode Brake hold control mode OFF, ON, Release or EPB

      OFF: Brake hold control is not operating

      ON: Brake hold control is operating

      Release: Brake hold control is released

      EPB: Parking brake is locked during brake hold control

      Tech Tips

      EPB stands for electric parking brake.
      RH Actuator Current Status Parking brake actuator assembly RH monitoring current condition Inval or Valid Valid -
      LH Actuator Current Status Parking brake actuator assembly LH monitoring current condition Inval or Valid Valid -
      RH Actuator Nut Stroke Parking brake actuator assembly RH nut stroke value 0.000 to 8.160 mm (0 to 0.321 in.) - -
      LH Actuator Nut Stroke Parking brake actuator assembly LH nut stroke value 0.000 to 8.160 mm (0 to 0.321 in.) - -
      RH Actuator Motor Actual Current Parking brake motor RH (parking brake actuator assembly RH) current value -5.0362 to 50.5000 A - -
      RH Actuator 0 load Current Parking brake motor RH (parking brake actuator assembly RH) current calibration value -5.0362 to 50.5000 A - -
      LH Actuator Motor Actual Current Parking brake motor LH (parking brake actuator assembly LH) current value -5.0362 to 50.5000 A - -
      LH Actuator 0 load Current Parking brake motor LH (parking brake actuator assembly LH) current value -5.0362 to 50.5000 A - -
      Counter of IG ON After EPB Control Cancel Number of times the ignition switch was turned to ON after EPB control was cancelled 0 to 255 Times - -
      RH Actuator Status Parking brake actuator assembly RH condition Default, Lock, Lock Dynamic, Release, Lock Faulty, Unexpected, Lock Standby, Release Standby, Lock Dynamic Standby, Release Dynamic Standby, Lock Dynamic Faulty, Lock Standard Control, Lock Dynamic Control, Lock Control for Prevention Loosen by High Temperature, Lock Control for Prevention Slipping Down, Re-Lock Control by Switch, Recovery Lock Control, Lock Control After Dynamic PKB, Release Standard Control, Release Dynamic Control, Full Release Control - -
      LH Actuator Status Parking brake actuator assembly LH condition Default, Lock, Lock Dynamic, Release, Lock Faulty, Unexpected, Lock Standby, Release Standby, Lock Dynamic Standby, Release Dynamic Standby, Lock Dynamic Faulty, Lock Standard Control, Lock Dynamic Control, Lock Control for Prevention Loosen by High Temperature, Lock Control for Prevention Slipping Down, Re-Lock Control by Switch, Recovery Lock Control, Lock Control After Dynamic PKB, Release Standard Control, Release Dynamic Control, Full Release Control - -
      Detailed Freeze DTC Number of detailed freeze DTCs 0 to 65535 - -
      RH Actuator Motor Gradient Current Parking brake motor RH (parking brake actuator assembly RH) current gradient -5.0362 to 50.5000 A - -
      LH Actuator Motor Gradient Current Parking brake motor LH (parking brake actuator assembly LH) current gradient -5.0362 to 50.5000 A - -
      RH Actuator Motor Relay1 Parking brake motor relay 1 RH condition OFF or ON - -
      RH Actuator Motor Relay2 Parking brake motor relay 2 RH condition OFF or ON - -
      RH Actuator Motor Relay3 Parking brake motor relay 3 RH condition OFF or ON - -
      RH Actuator Motor Relay4 Parking brake motor relay 4 RH condition OFF or ON - -
      LH Actuator Motor Relay1 Parking brake motor relay 1 LH condition OFF or ON - -
      LH Actuator Motor Relay2 Parking brake motor relay 2 LH condition OFF or ON - -
      LH Actuator Motor Relay3 Parking brake motor relay 3 LH condition OFF or ON - -
      LH Actuator Motor Relay4 Parking brake motor relay 4 LH condition OFF or ON - -
      RH Actuator Motor Current High Parking brake motor RH (parking brake actuator assembly RH) overcurrent OFF or ON - -
      RH Actuator Motor Driver Operation Status Parking brake motor RH (parking brake actuator assembly RH) driver status OK or NG - -
      LH Actuator Motor Current High Parking brake motor LH (parking brake actuator assembly LH) overcurrent status OFF or ON - -
      LH Actuator Motor Driver Operation Status Parking brake motor LH (parking brake actuator assembly LH) driver status OK or NG - -

      *: Not equipped

  3. CLEAR FREEZE FRAME DATA

    Note

    Clearing the DTCs will also clear the Freeze Frame Data.


    1. Turn the ignition switch off.

    2. Connect the GTS to the DLC3.

    3. Turn the ignition switch to ON.

    4. Clear the DTCs and Freeze Frame Data.

      Click here


      Chassis > ABS/VSC/TRC/EPB > Clear DTCs