POWER STEERING SYSTEM FREEZE FRAME DATA


  1. FREEZE FRAME DATA

    Note


    • It is difficult to show the specified values (judgment 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 power switch on (IG) and park the vehicle on level ground. Check the freeze frame data by using the intelligent tester.


    1. Turn the power switch off.

    2. Connect the intelligent tester to the DLC3.

    3. Turn the power switch on (IG).

    4. Turn the intelligent tester on.

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

      EMPS
      Tester Display Measurement Item/Range Normal Condition Diagnostic Note
      Meter Vehicle Velocity

      Vehicle speed from meter/

      Min.: 0 km/h (0 mph)

      Max.: 300 km/h (186.4 mph)

      		 0 km/h (0 mph) Power switch on (READY) and vehicle stopped
      No significant fluctuation Power switch on (READY) and vehicle driven at a constant speed
      Motor Actual Current

      Amount of current to motor/

      Min.: -327.68 A

      Max.: 327.67 A

      Value changes in proportion to steering effort

      - The value rises in left turn

      - The value descends in right turn

      		 Power switch on (READY) and steering wheel being turned
      Command Value Current

      Demanded amount of current to motor/

      Min.: -327.68 A

      Max.: 327.67 A

      Value changes in proportion to steering effort

      - The value rises in left turn

      - The value descends in right turn

      		 Power switch on (READY) and steering wheel being turned
      Steering Angle Velocity

      Steering angle speed/

      Min.: -32768 deg/s

      Max.: 32767 deg/s

      Value changes in proportion to steering speed

      - The value rises in left turn

      - The value descends in right turn

      		 Power switch on (READY) and steering wheel being turned
      Thermistor Temperature

      ECU substrate temperature/

      Min.: -50°C (-58°F)

      Max.: 150°C (302°F)

      		 -50°C to 150°C (-58°F to 302°F) Power switch on (READY)
      PIG Power Supply

      Power source voltage to active motor/

      Min.: 0 V

      Max.: 20.1531 V

      		 9 to 16 V Power switch on (READY) and steering wheel being turned
      IG Power Supply

      ECU power source voltage/

      Min.: 0 V

      Max.: 20.1531 V

      		 9 to 16 V Power switch on (IG)
      Steering Wheel Torque

      Steering wheel torque/

      Min.: -327.68 Nm

      Max.: 7 Nm

      Value changes in proportion to steering effort

      - The value rises in left turn

      - The value descends in right turn

      		 Power switch on (READY) and steering wheel being turned
      Motor Rotation Angle

      Motor rotation angle/

      Min.: 0 deg

      Max.: 1441.77 deg

      		 During steering operation, motor rotation angle value changes from 0 to 360° Power switch on (READY) and steering wheel being turned
      Command Val Current 2

      Demanded amount of current to motor/

      Min.: -327.68 A

      Max.: 327.67 A

      		 Value changes in proportion to steering effort Power switch on (READY) and steering wheel being turned
      PIG2 Voltage

      Coil rear pressurization voltage/

      Min.: 0 V

      Max.: 98 V

      		 9 to 16 V Power switch on (READY) and steering wheel not being turned
      Value changes within 4 to 35 V range Power switch on (READY) and steering wheel being turned
      Motor Voltage

      Motor power supply voltage/

      Min.: 0 V

      Max.: 98 V

      		 Approximately 30 V Power switch on (READY) and steering wheel not being turned
      Value changes within 4 to 35 V range Power switch on (READY) and steering wheel being turned
      Motor Terminal Volt (U)

      Motor terminal voltage (U phase)/

      Min.: 0 V

      Max.: 98 V

      		 Value changes within 4 to 35 V range Power switch on (READY) and steering wheel being turned
      Motor Terminal Volt (V)

      Motor terminal voltage (V phase)/

      Min.: 0 V

      Max.: 98 V

      		 Value changes within 4 to 35 V range Power switch on (READY) and steering wheel being turned
      Motor Terminal Volt (W)

      Motor terminal voltage (W phase)/

      Min.: 0 V

      Max.: 98 V

      		 Value changes within 4 to 35 V range Power switch on (READY) and steering wheel being turned
      Torque Sensor 1 Output

      Torque sensor voltage/

      Min.: 0 V

      Max.: 4.9725 V

      		 2.3 to 2.7 V Power switch on (READY) and steering wheel not turned (without load)
      2.5 to 3.8 V Power switch on (READY) and steering wheel being turned to the right with vehicle stopped
      1.2 to 2.5 V Power switch on (READY) and steering wheel being turned to the left with vehicle stopped
      Torque Sensor 2 Output

      Torque sensor voltage/

      Min.: 0 V

      Max.: 4.9725 V

      		 2.3 to 2.7 V Power switch on (READY) and steering wheel not turned (without load)
      1.2 to 2.5 V Power switch on (READY) and steering wheel being turned to the right with vehicle stopped
      2.5 to 3.8 V Power switch on (READY) and steering wheel being turned to the right with vehicle stopped
      TRQ1 Zero Point Value

      Torque sensor voltage/

      Min.: 0 V

      Max.: 4.9725 V

      		 Values differ depending on vehicle Power switch on (READY) and steering wheel not being turned
      TRQ2 Zero Point Value

      Torque sensor voltage/

      Min.: 0 V

      Max.:4.9725 V

      		 Values differ depending on vehicle Power switch on (READY) and steering wheel not being turned
      Ready Status

      Ready status/

      Ready or OFF

      		 Ready or OFF -