ANTI-LOCK BRAKE SYSTEM FREEZE FRAME DATA


  1. FREEZE FRAME DATA


    1. Using the GTS, check the vehicle condition (ECU, sensor) when the brake system operates or a DTC is output.

  2. CHECK FREEZE FRAME DATA WHEN BRAKE SYSTEM OPERATES


    1. Freeze frame data is stored when the brake system operates. The freeze frame data is updated each time the system operates.

    2. Once freeze frame data is stored when the system operates, it is not cleared until the DTC is cleared.

    3. The number of times (maximum: 31) the ignition switch has been turned from off to ON since the last time the system was activated can be stored and displayed.

      Tech Tips


      • After turning the ignition switch from off to ON, if the vehicle is not driven (vehicle speed below 7 km/h (4.3 mph)), the value does not increase.

      • The value "31" is displayed when the ignition switch was turned to ON more than 31 times.

    4. Check freeze frame data when the system operates


      1. Turn the ignition switch off.

      2. Connect the GTS to the DLC3 and turn the ignition switch to ON.

      3. Enter the following menus: Chassis / ABS/VSC/TRC / Utility.

      4. Select "ABS History".

      5. Check the freeze frame data when the system operates.

  3. CHECK FREEZE FRAME DATA WHEN DTC WAS STORED


    1. Freeze frame data is stored when a DTC is output.

    2. Once freeze frame data is stored when a DTC is output, it is not updated or cleared until the DTC is cleared.

    3. The number of times (maximum: 31) the ignition switch has been turned from off to ON since a DTC was output can be stored and displayed.

      Tech Tips

      The value "31" is displayed when the ignition switch was turned to ON more than 31 times.

    4. Check freeze frame data when DTC is output


      1. Turn the ignition switch off.

      2. Connect the GTS to the DLC3 and turn the ignition switch to ON.

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

      4. Select a DTC to display the freeze frame data.

      5. Check the freeze frame data for the output DTC.

        ABS/VSC/TRC
        Tester Display Measurement Item/Range Normal Condition Diagnostic Note
        FR Speed Open Front speed sensor RH open detection / Error or Normal Normal Error: Momentary interruption
        FL Speed Open Front speed sensor LH open detection / Error or Normal Normal Error: Momentary interruption
        RR Speed Open Rear speed sensor RH open detection / Error or Normal Normal Error: Momentary interruption
        RL Speed Open Rear speed sensor LH open detection / Error or Normal Normal Error: Momentary interruption
        IG Voltage Value Decreased IG voltage value decrease detection / Error or Normal Normal Error: Momentary interruption
        IG Voltage Value Increased IG voltage value increase detection / Error or Normal Normal Error: Momentary interruption
        FR Speed Sensor Voltage Open Front speed sensor RH voltage open detection / Error or Normal Normal Error: Momentary interruption
        FL Speed Sensor Voltage Open Front speed sensor LH voltage open detection / Error or Normal Normal Error: Momentary interruption
        RR Speed Sensor Voltage Open Rear speed sensor RH voltage open detection / Error or Normal Normal Error: Momentary interruption
        RL Speed Sensor Voltage Open Rear speed sensor LH voltage open detection / Error or Normal Normal Error: Momentary interruption
        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 assembly / 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

        VSC: VSC activated*

        TRC: TRC activated*

        BA: BA activated*

        Fail: Fail safe mode activated*

        PBA: PBA activated*

        PB: PB activated*

        HA-CTRL: Hill-start assist control activated*

        TSC: Trailer sway control activated*

        Sys: System prohibit activated


        • *: Not supported
        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 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

  4. 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.