ANTI-LOCK BRAKE SYSTEM FREEZE FRAME DATA

SST
A00YUPH 09843-18040 Diagnosis Check Wire No. 2

  1. FREEZE FRAME DATA


    1. Whenever a DTC is detected, the skid control ECU (brake actuator assembly) stores the current vehicle (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


      • However, if the vehicle is stopped or 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 of times the ignition switch has been turned from off to ON.

      • Freeze Frame Data at the time the ABS operates: The skid control ECU (brake actuator assembly) 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 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 / Trouble Codes.


      Chassis > ABS/VSC/TRC > Trouble Codes

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


      Chassis > ABS/VSC/TRC
      Tester Display Measurement Item Range Normal Condition Diagnostic Note
      Elapsed Time after Freeze Trigger Elapsed time after freeze trigger

      Min.: 0 msec

      Max.: 500 msec

      		 - -
      Number of IG ON Number of operations of ignition switch being turned to ON after storing Freeze Frame Data 0 to 31 - -
      Stop Light SW Stop light switch assembly 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

      		 -
      Operated System Operated system status Non, ABS, VSC, TRC, BA, HAB, Fail, PBA, PB, HA-CTRL, TSC or Sys Actual operated system

      Non: No operation activated

      ABS: ABS activated

      Fail: Fail safe mode activated

      Sys: System prohibit activated
      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

      for 2WD:

      The item is displayed on the GTS but not used.
      FR Wheel Speed FR wheel speed sensor reading

      Min.: 0 km/h (0 mph)

      Max.: 326.4 km/h (202 mph)

      		 Vehicle stopped: 0 km/h (0 mph) When driving at constant speed: No large fluctuations
      FL Wheel Speed FL wheel speed sensor reading

      Min.: 0 km/h (0 mph)

      Max.: 326.4 km/h (202 mph)

      		 Vehicle stopped: 0 km/h (0 mph) When driving at constant speed: No large fluctuations
      RR Wheel Speed RR wheel speed sensor reading

      Min.: 0 km/h (0 mph)

      Max.: 326.4 km/h (202 mph)

      		 Vehicle stopped: 0 km/h (0 mph) When driving at constant speed: No large fluctuations
      RL Wheel Speed RL wheel speed sensor reading

      Min.: 0 km/h (0 mph)

      Max.: 326.4 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.: 326.4 km/h (202 mph)

      		 Vehicle stopped: 0 km/h (0 mph) When driving at constant speed: No large fluctuations
      Vehicle Speed Grade Vehicle acceleration

      Min.: -25.10 m/s2

      Max.: 24.90 m/s2

      Vehicle stopped: 0 m/s2

      		During driving: Changes in proportion with vehicle acceleration/deceleration

  3. CLEAR FREEZE FRAME DATA

    Note

    Clearing the DTC will also clear the Freeze Frame Data.


    1. Connect the GTS to the DLC3.

    2. Turn the ignition switch to ON.

    3. Clear the DTC and Freeze Frame Data.

      Click here


      Chassis > ABS/VSC/TRC > Clear DTCs