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Home >> Subaru >> 2020 >> BRZ Limited, Automatic Trans >> Repair and Diagnosis >> Steering >> Steering Control Systems >> Power Steering System (Diagnostics) >> Power Steering System >> Freeze Frame Data
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Freeze Frame Data

  1. Freeze frame data
    NOTE:
    • If an error diagnosis code is output, the freeze frame data at the time of the generation of the error code is recorded.
    • When an error diagnosis code is generated and the freeze frame data is recorded, data is not updated or deleted until the recorded data itself is deleted (diagnosis code deletion).
    1. Turn the ignition switch to OFF.
    2. Connect the SSM4 to the DLC3.
    3. Display the error code on the diagnostic code confirmation screen. (Refer to CHECKING/CLEARING DIAGNOSTIC CODES )
    4. Check the freeze frame data.
    FREEZE FRAME DATA

    Item name Description/display range Normal value Remarks
    Vehicle speed Indicates the vehicle speed input from the skid control computer.
    Display range: 0.0 to 300.0km/h    		 0km/h: When stopped -
    No significant fluctuation: When driving at a constant speed -
    Engine speed Indicates the engine speed.
    Display range: 0 to 12800rpm    		 No substantial fluctuations present: Engine speed is constant -
    Motor current Indicates the current flowing to the motor. Display range: -327.68 to 327.67A Changes in proportion to the steering force: During engine start, steering operation Left turn (+) Right turn (-)
    Motor current (requirement) Indicates the requirement for the current flowing to the motor.
    Display range: -327.68 to 327.67A    		 Changes in proportion to the steering force: During engine start, steering operation Left turn (+) Right turn (-)
    Steering angular speed Indicates the angular speed of steering operation.
    Display range: -32768 to 32767deg/s    		 Changes in proportion to the steering speed: During engine start, steering operation Left turn (+) Right turn
    Thermistor temperature Indicates the ECM board temperature.
    Display range: -50.0 to 150.0°C    		 - -
    PIG power supply voltage Indicates the power supply voltage to drive the motor.
    Display range: 0.0000 to 20.1531V    		 9 to 16V: Always -
    IG power supply voltage Indicates the ECM power supply state.
    Display range: 0.0000 to 20.1531V    		 9 to 16V: IG ON -
    Steering torque Indicates the steering torque.
    Display range: -7.00 to 7.00Nm    		 Changes in proportion to the steering force: During engine start, steering operation Left turn (+) Right turn
    Motor rotation angle Indicates the motor rotation angle.
    Display range: 0.000 to 360.000deg    		 Varies between 0 and 360 deg: During engine start, steering operation -
    Motor current (Command Value 2) Indicates the requirement for the current flowing to the motor.
    Display range: -327.68 to 327.67A    		 Changes in proportion to the steering force: During engine start, steering operation -
    Boost voltage after the coil. Indicates the boost voltage after the coil.
    Display range: 0.000 to 98.000V    		 Approx. 27V: During engine start, steering non-operation -
    Varies within 16 - 35 V: During engine start, steering operation -
    Motor power supply voltage Indicates the motor power supply voltage.
    Display range: 0.000 to 98.000V    		 Approx. 27 V: During engine start, steering non-operation -
    Varies within 4 - 35 V: During engine start, steering operation -
    Motor terminal voltage (U phase) Indicates the motor U terminal voltage.
    Display range: 0.000 to 98.000V    		 Varies within 4 - 35 V: During engine start, steering operation -
    Motor terminal voltage (V phase) Indicates the motor V terminal voltage.
    Display range: 0.000 to 98.000V    		 Varies within 4 - 35 V: During engine start, steering operation -
    Motor terminal voltage (W phase) Indicates the motor W terminal voltage.
    Display range: 0.000 to 98.000V    		 Varies within 4 - 35 V: During engine start, steering operation -
    Torque sensor 1 output Indicates the torque sensor 1 output.
    Display range: 0.0000 to 5.0000V    		 2.3 to 2.7V: During engine start, no steering load (neutral position) -
    2.3 to 3.8V: During engine start, steering to the right -
    1.2 to 2.7V: During engine start, steering to the left -
    Torque sensor 2 output Indicates the torque sensor 2 output.
    Display range: 0.0000 to 5.0000V    		 2.3 to 2.7V: During engine start, no steering load (neutral position) -
    1.2 to 2.7V: During engine start, steering to the right -
    2.3 to 3.8V: During engine start, steering to the left -
    Torque sensor 1 (zero point value) Indicates the torque sensor 1 output value at the zero point.
    Display range: 0.0000 to 5.0000V    		 - -
    Torque sensor 2 (zero point value) Indicates the torque sensor 2 output value at the zero point.
    Display range: 0.0000 to 5.0000V    		 - -
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