VEHICLE STABILITY CONTROL 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


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

      • The value "31" is displayed when the ignition switch was turned 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".


        Chassis > ABS/VSC/TRC > Utility
        Tester Display
        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 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.


        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.


        Chassis > 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
        EFI Communication Open ECM communication open detection Error or Normal Normal Error: Momentary interruption
        Yaw Rate Open Yaw rate sensor open detection Error or Normal Normal Error: Momentary interruption
        Deceleration Open Acceleration sensor open detection Error or Normal Normal Error: Momentary interruption
        Steering Open Steering angle sensor open detection Error or Normal Normal Error: Momentary interruption
        Master Cylinder Open Master cylinder pressure sensor open 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
        M/C Pressure Sensor Noise Master cylinder pressure sensor noise detection Error or Normal Normal Error: Momentary interruption
        Yaw Rate Sensor Voltage Open Yaw rate sensor voltage open detection Error or Normal Normal Error: Momentary interruption
        EFI Communication Invalid ECM communication invalid detection Error or Normal Normal Error: Invalid
        Number of IG ON Number of operations of ignition switch being turned to ON after storing Freeze Frame Data 0 to 31 - -
        Elapsed Time Time elapsed after ignition switch turned ON

        Min.: 0 sec

        Max.: 100661.76 sec

        		 - -
        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

        		 -
        Gear Position Gear position information Fail, 1st-7th, "P, N", 8th, R or Not R Actual gear position -
        Shift Lever Position Shift lever position information Fail, 1st-5th, 6th/B, D/M, "P, N" or R Actual shift lever position -
        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

        HA-CTRL: Hill-start assist control activated

        TSC: Trailer sway control is activated

        Sys: System prohibit activated
        M/C Sensor Grade Master cylinder pressure sensor change

        Min.: -30 MPa/s

        Max.: 225 MPa/s

        		 0 MPa/s: When brake pedal is released or pedal held at constant position When brake pedal is being operated: Changes in proportion with pedal movement speed
        Yaw Rate Sensor Yaw rate sensor

        Min.: -128°/s

        Max.: 127°/s

        0°/s: Vehicle stopped

        -128 to 0°/s: Turning right

        0 to 127°/s: Turning left

        		 -
        Lateral G Lateral G

        Min.: -25.10 m/s2

        Max.: 24.90 m/s2

        		- During turning: Changes in proportion with 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 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
        Real Engine Torque Real engine torque

        Min.: -1024 Nm

        Max.: 1023 Nm

        		 - -
        Accelerator Opening Angle % Percentage of accelerator pedal opening angle

        Min.: 0%

        Max.: 127%

        		 Accelerator pedal released: 0% During accelerator pedal operation: Changes in proportion with the pedal movement
        BS1 Voltage Value +BS voltage value

        Min.: 0 V

        Max.: 20 V

        		 Ignition switch ON: 11 to 14 V Changes in proportion to battery voltage
        FR Target Oil Pressure Front wheel RH target oil pressure

        Min.: 0 MPa

        Max.: 20 MPa

        		 Different according to target oil pressure of each wheel -
        FL Target Oil Pressure Front wheel LH target oil pressure

        Min.: 0 MPa

        Max.: 20 MPa

        		 Different according to target oil pressure of each wheel -
        RR Target Oil Pressure Rear wheel RH target oil pressure

        Min.: 0 MPa

        Max.: 20 MPa

        		 Different according to target oil pressure of each wheel -
        RL Target Oil Pressure Rear wheel LH target oil pressure

        Min.: 0 MPa

        Max.: 20 MPa

        		 Different according to target oil pressure of each wheel -
        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°

        Turning left: Positive value increases

        Turning right: Negative value decreases

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

        Normal: Normal mode

        TRC OFF: TRC off mode

        VSC OFF: VSC off mode

        		 -
        Master Cylinder Pressure Master cylinder pressure sensor pressure

        Min.: 0.00 MPa

        Max.: 23.28 MPa

        Proportional to pedal force: Pedal operated

        0.00 MPa: Pedal released

        		 -
        Master Cylinder Sensor Temperature Master cylinder pressure sensor temperature

        Min.: -80°C (-112°F)

        Max.: 175°C (347°F)

        		 - -
        Vehicle Stop Time from IG ON Time vehicle stopped after ignition switch turned ON

        Min.: 0 s

        Max.: 1275 s

        		 - -
        Travel Distance from IG ON Driving time after ignition switch turned ON

        Min.: 0 s

        Max.: 1275 s

        		 - -
        Engine Revolutions Engine speed

        Min.: 0 rpm

        Max.: 25500 rpm

        		 - -
        Motor Power Supply Voltage Motor power supply voltage

        Min.: 0 V

        Max.: 20 V

        		 Ignition switch ON: 11 to 14 V Changes in proportion to battery voltage
        Solenoid Power Supply Voltage Solenoid power supply voltage

        Min.: 0 V

        Max.: 20 V

        		 Ignition switch ON: 11 to 14 V Changes in proportion to battery voltage
        MT Voltage Value Motor voltage value

        Min.: 0 V

        Max.: 20 V

        		 - Changes in proportion to battery voltage
        Stop Light Relay State for ECU Control Stop light control relay (STOP/CDS FAN Relay) status (for ECU control) ON or OFF

        OFF: Relay off

        ON: Relay on

        		 -
        Engine Stop by Stop and Start System Engine stopped by stop and start system status ON or OFF

        OFF: Engine not stopped by stop and start control

        ON: Engine stopped by stop and start control

        		 This item is displayed on the GTS but is not used
        Solenoid State for ECU Control Solenoid (for ECU control) status ON or OFF

        ON: Solenoid relay operating

        OFF: Solenoid relay not operating

        		 -
        Motor State for ECU Control Motor (for ECU control) status ON or OFF

        ON: Motor relay operating

        OFF: Motor relay not operating

        		 -
        Operation History of IG OFF while Vehicle is moving History of ignition switch turned off when vehicle is in motion ON or OFF

        ON: History of ignition switch turned off with vehicle speed 3 km/h (2 mph) or higher

        OFF: No history

        		 -
        Master Cylinder Pressure Sensor Power Supply Open Master cylinder pressure sensor power supply voltage status Error or Normal Normal Error: Momentary interruption
        Solenoid Power Supply Open Solenoid power supply voltage status Error or Normal Normal Error: Momentary interruption
        Motor Power Supply Open Motor power supply voltage status Error or Normal Normal Error: Momentary interruption
        Stop Switch Open Momentary interruption (open circuit) status in the wire harness between the skid control ECU (brake actuator assembly) and the stop light switch assembly Error or Normal Normal Error: Momentary interruption
        IG Switch Ignition switch status ON or OFF - -
        Elapsed Time after Freeze Trigger Elapsed time after storing freeze frame data

        Min.: 0 msec

        Max.: 1020 msec

        		 - -

  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


      Chassis > ABS/VSC/TRC > Clear DTCs