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Freeze Frame Data

  1. FREEZE FRAME DATA 
    NOTE:
    • It is difficult to show the specified values (judgement values) clearly because freeze frame data values change significantly due to differences in measurement conditions, surroundings, or vehicle conditions. For this reason, there may be a problem even when the values are within specifications.
    • Turn the ignition switch on and park the vehicle on level ground. Check the freeze frame data by using the Techstream.
    1. Connect the Techstream to the DLC3.
    2. Turn the ignition switch on.
    3. Turn the Techstream on.
    4. Check the freeze Frame data. Enter the following menus: Chassis / EMPS / Utility / Freeze Frame data.

    EMPS: 

    TESTER DISPLAY REFERENCE

    Tester Display Measurement Item/Range Inspection Condition Reference Value
    Torque Sensor 1 Output Torque sensor 1 rotation angle/ Min.: 0 deg, Max.: 360 deg Steering wheel is turned Value changes from 0 to 360° every 45° of steering angle
    Torque Sensor 2 Output Torque sensor 2 rotation angle/ Min.: 0 deg, Max.: 360 deg Steering wheel is turned Value changes from 0 to 360° every 45° of steering angle
    Meter Vehicle Velocity Vehicle speed from meter/Min.: 0 km/h (0 mph), Max.: 255 km/h (158 mph)
    1. Vehicle is stopped
    2. Vehicle is driven at a constant speed
    1. 0 km/h (0 mph)
    2. No significant fluctuation
    Motor Actual Current Amount of current to motor/Min.: -128 A, Max.: 127 A Power steering is in operation Value changes in proportion to steering effort
    Command Value Current Demanded amount of current to motor/Min.: -128 A, Max.: 127 A Power steering is in operation Value changes in proportion to steering effort
    Steering Angle Velocity Steering angle speed/Min.: -4096 deg/s, Max.: 4064 deg/s Steering wheel is turned Value changes in proportion to steering speed
    Thermistor Temperature ECU substrate temperature/ Min.: -50°C, Max.: 205°C IG switch ON -
    IG Power Supply ECU power source voltage/Min.: 0 V, Max.: 25.5 V IG switch ON 10 to 14 V
    TRQ1 Zero Point Value Zero point value of torque sensor 1/Min.: 0 deg, Max.: 360 deg Steering wheel is not turned (without load) Values differ depending on vehicle
    TRQ2 Zero Point Value Zero point value of torque sensor 2/Min.: 0 deg, Max.: 360 deg Steering wheel is not turned (without load) Values differ depending on vehicle
    Steering Wheel Torque Steering torque/Min.: -7.0 N*m, Max.: 7.0 N*m Steering wheel is turned Value changes in proportion to steering effort
    Motor Rotation Angle Motor rotation angle/Min.: 0 deg, Max.: 360 deg Steering wheel is turned Value changes from 0 to 360° every 45° of steering angle
    Command Val Current 2 Demanded amount of current to motor 2/Min.: -128 A, Max.: 127 A - -
    Motor Voltage Motor power source voltage/Min.: 0 V, Max.: 64 V Power steering is in operation 42 to 51 V
    Motor Terminal Volt (U) Motor terminal voltage (U phase)/ Min.: 0 V, Max.: 64 V Power steering is in operation 2 to 51 V
    Motor Terminal Volt (V) Motor terminal voltage (V phase)/ Min.: 0 V, Max.: 64 V Power steering is in operation 2 to 51 V
    Motor Terminal Volt (W) Motor terminal voltage (W phase)/ Min.: 0 V, Max.: 64 V Power steering is in operation 2 to 51 V
    Battery Voltage Battery voltage/Min.: 0 V, Max.: 25.5 V IG switch ON 10 to 14 V
    DRDD Voltage Power source voltage to power steering converter/Min.: 0 V, Max.: 25.5 V IG switch ON 10 to 14 V
    HV Battery Voltage HV battery voltage/Min.: 0 V, Max.: 510 V IG switch ON 150 to 430 V
    Power Source OK Signal Power source OK signal/OK or NG IG switch ON OK
    Break Gate Request Signal Break gate request signal/OK or BREAK IG switch ON OK
    DC-DC Warning Signal Power steering converter warning signal/OK, NG(1), NG (2) or STOP((1)) IG switch ON OK
    PS Assist Signal Power steering assist signal/ON or OFF IG switch ON OK
    Ready Status Ready status/OFF or Ready - -
    (1) NG (1): Power steering converter has an internal failure./NG (2): Power steering converter has an external failure.
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