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POWER STEERING SYSTEM FREEZE FRAME DATA

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  1. FREEZE FRAME DATA

    Note:
    • Freeze frame data values will vary depending on the measurement conditions, surroundings, or vehicle conditions. For this reason, there may be a problem even when the values are within specifications.

    • Turn the engine switch on (IG) and park the vehicle on level ground. Check the freeze frame data by using the intelligent tester.


    1. Turn the engine switch off.

    2. Connect the intelligent tester to the DLC3.

    3. Turn the engine switch on (IG).

    4. Turn the intelligent tester on.

    5. Check the freeze frame data on the intelligent tester.

      Table 1. EMPS
      Tester Display Measurement/Range Inspection Condition Reference Value
      Engine Speed

      Vehicle speed from meter/

      Min.: 0 km/h (0 mph)

      Max.: 300 km/h (186.4 mph)

      Vehicle is stopped 0 km/h (0 mph)
      Vehicle is driven at a constant speed No significant fluctuation
      Engine Rev

      Engine speed/

      Min.: 0 rpm

      Max.: 12800 rpm

      Engine is running at a constant speed No significant fluctuation
      Motor Actual

      Amount of current to motor/

      Min.: -327.68 A

      Max.: 327.67 A

      Engine running, steering is being turned Value changes in proportion to steering effort
      Command Value

      Demanded amount of current to motor/

      Min.: -327.68 A

      Max.: 327.67 A

      Engine running, steering is being turned Value changes in proportion to steering effort
      Str Angl Vel

      Steering angle speed/

      Min.: -32768 deg/s

      Max.: 32767 deg/s

      Engine running, steering wheel is being turned Value changes in proportion to steering effort
      Thermistor Temp

      ECU substrate temperature/

      Min.: -40°C (-40°F)

      Max.: 150°C (302°F)

      Engine switch on (IG) -
      PIG Supply

      Power source voltage to activate motor/

      Min.: 0 V

      Max.: 20.1531 V

      Engine running, power steering is operating 11 to 14 V
      IG Supply

      ECU power source voltage/

      Min.: 0 V

      Max.: 20.1531 V

      Engine switch on (IG) 11 to 14 V
      Steering Torque

      Steering wheel torque/

      Min.: -7.0 Nm

      Max.: 7.0 Nm

      Engine running, steering is being turned Value changes in proportion to steering effort
      Motor Rotate

      Motor rotation angle/

      Min.: 0 deg

      Max.: 360 deg

      Engine running, steering is being turned During steering operation, motor rotation angle value changes from 0 to 360°
      Command Val 2

      Amount of current demanded by motor 2/

      Min.: -327.68 A

      Max.: 327.67 A

      Engine running, steering is being turned Value changes in proportion to steering effort
      PIG2 Voltage

      Coil rear pressurization voltage/

      Min.: 0 V

      Max.: 45.955 V

      Engine running, steering wheel is not being turned Approximately 33 V
      Engine running, steering wheel is being turned Value changes within 16 to 46 V range
      Motor Voltage

      Motor power supply voltage/

      Min.: 0 V

      Max.: 45.955 V

      Engine running, steering wheel is not being turned Approximately 33 V
      Engine running, steering wheel is being turned Value changes within 4 to 46 V range
      Mtr Terminal(U)

      Motor terminal voltage (U phase)/

      Min.: 0 V

      Max.: 46.667 V

      Engine running, steering wheel is being turned Value changes within 4 to 46 V range
      Mtr Terminal(V)

      Motor terminal voltage (V phase)/

      Min.: 0 V

      Max.: 46.667 V

      Engine running, steering wheel is being turned Value changes within 4 to 46 V range
      Mtr Terminal(W)

      Motor terminal voltage (W phase)/

      Min.: 0 V

      Max.: 46.667 V

      Engine running, steering wheel is being turned Value changes within 4 to 46 V range
      Trq1

      Torque sensor 1 output value/

      Min.: 0 V

      Max.: 5 V

      Engine running, steering wheel is not turned (without load) 2.3 to 2.7 V
      Engine running, steering wheel is turned to right with vehicle stopped 2.5 to 3.8 V
      Engine running, steering wheel is turned to left with vehicle stopped 1.2 to 2.5 V
      Trq2

      Torque sensor 2 output value/

      Min.: 0 V

      Max.: 5 V

      Engine running, steering wheel is not turned (without load) 2.3 to 2.7 V
      Engine running, steering wheel is turned to right with vehicle stopped 1.2 to 2.5 V
      Engine running, steering wheel is turned to left with vehicle stopped 2.5 to 3.8 V
      Trq1 Zero Val

      Zero point value of torque sensor 1/

      Min.: 0 V

      Max.: 5 V

      Engine running, steering wheel is not being turned Values differ depending on vehicle
      Trq2 Zero Val

      Zero point value of torque sensor 2/

      Min.: 0 V

      Max.: 5 V

      Engine running, steering wheel is not being turned Values differ depending on vehicle