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 Techstream.

    1. Turn the power switch off.

    2. Connect the Techstream to the DLC3.

    3. Turn the power switch on (IG).

    4. Turn the Techstream on.

    5. Check the freeze frame data on the Techstream.

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

      Vehicle speed from meter/

      Min.: 0.0 km/h (0.0 mph)

      Max.: 300.0 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

      		 The value rises 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 increases when turning left and decreases when turning right

      		 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 increases when turning left and decreases when turning right

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

      ECU substrate temperature/

      Min.: -40.0°C (-40.0°F)

      Max.: 150.0°C (302.0°F)

      		 -40°C to 150°C (-40°F to 302°F) Power switch on (READY)
      PIG Power Supply

      Power source voltage to active motor/

      Min.: 0.0000 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.: 0.0000 V

      Max.: 20.1531 V

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

      Steering wheel torque/

      Min.: -327.68 Nm

      Max.: 7.00 Nm

      Value changes in proportion to steering effort

      -The value increases when turning left and decreases when turning right

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

      Motor rotation angle/

      Min.: 0.000 deg

      Max.: 1441.770 deg

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

      Motor power supply voltage/

      Min.: 0.000 V

      Max.: 98.000 V

      		 9 to 16 V Power switch on (READY) and steering wheel being turned
      Motor Terminal Volt (U)

      Motor terminal voltage (A phase)/

      Min.: 0.000 V

      Max.: 98.000 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 (B phase)/

      Min.: 0.000 V

      Max.: 98.000 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 (C phase)/

      Min.: 0.000 V

      Max.: 98.000 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.: 0.0000 V

      Max.: 4.9725 V

      		 2.3 to 2.7 V Power switch on (READY) and steering wheel not being turned (without load)
      2.5 to 4.7 V Power switch on (READY) and steering wheel being turned to the right with vehicle stopped
      0.3 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.: 0.0000 V

      Max.: 4.9725 V

      		 2.3 to 2.7 V Power switch on (READY) and steering wheel not being turned (without load)
      0.3 to 2.5 V Power switch on (READY) and steering wheel being turned to the right with vehicle stopped
      2.5 to 4.7 V Power switch on (READY) and steering wheel being turned to the left with vehicle stopped
      Battery Voltage

      Auxiliary battery voltage/

      Min.: 0.0 V

      Max.: 25.5 V

      		 9 to 16 V Power switch on (IG)
      PS Assist Signal

      Power steering assist signal/

      ON or OFF

      		 OFF Power switch on (IG)
      ON Power switch on (READY)
      Ready Status

      Ready status/

      Ready or OFF

      		 Ready or OFF -