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Home >> Lexus >> 2012 >> RX 350 FWD >> Repair and Diagnosis (Single Page) >> Steering >> Manual Steering >> Power Steering System (Diagnostics - Introduction) >> Power Steering System >> Freeze Frame Data >> Freeze Frame Data
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Freeze Frame Data

  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 Techstream.
    1. Turn the engine switch off.
    2. Connect the Techstream to the DLC3.
    3. Turn the engine switch on (IG).
    4. Turn the Techstream on.
    5. Check the freeze frame data on the Techstream.
      EMPS

      Tester Display Measurement/Range Inspection Condition Reference Value
      Meter Vehicle Velocity Vehicle speed from meter/
      Min.: 0 km/h (0 mph)
      Max.: 300 km/h (186.4 mph)
      The vehicle is stopped. 0 km/h (0 mph)
      The vehicle is driven at a constant speed. No significant fluctuation
      Engine Revolution Engine speed/
      Min.: 0 RPM
      Max.: 12800 RPM
      The engine is running at a constant speed. No significant fluctuation
      Motor Actual Current Amount of current to motor/
      Min.: -327.68 A
      Max.: 327.67 A
      The engine is running and steering wheel is being turned. Value changes in proportion to steering effort
      Command Value Current Demanded amount of current to motor/
      Min.: -327.68 A
      Max.: 327.67 A
      The engine is running and steering wheel is being turned. Value changes in proportion to steering effort
      Steering Angle Velocity Steering angle speed/
      Min.: -32768 deg/s
      Max.: 32767 deg/s
      The engine is running and steering wheel is being turned. Value changes in proportion to steering effort
      Thermistor Temperature ECU substrate temperature/
      Min.: -50°C (-58°F)
      Max.: 150°C (302°F)
      Engine switch on (IG) -
      PIG Power Supply Power source voltage to activate motor/
      Min.: 0 V
      Max.: 20.1531 V
      The engine is running and power steering is operating. 11 to 14 V
      IG Power Supply ECU power source voltage/
      Min.: 0 V
      Max.: 20.1531 V
      Engine switch on (IG) 11 to 14 V
      Steering Wheel Torque Steering wheel torque/
      Min.: -327.68 Nm
      Max.: 7.0 Nm
      The engine is running and steering wheel is being turned. Value changes in proportion to steering effort
      Motor Rotation Angle Motor rotation angle/
      Min.: 0 deg
      Max.: 360 deg
      The engine is running and steering wheel is being turned. During steering operation, motor rotation angle value changes from 0 to 360°
      Command Val Current 2 Amount of current demanded by motor 2/
      Min.: -327.68 A
      Max.: 327.67 A
      The engine is running and steering wheel is being turned. Value changes in proportion to steering effort
      PIG2 Voltage Coil rear pressurization voltage/
      Min.: 0 V
      Max.: 98.000 V
      The engine is running and steering wheel is not being turned. Approximately 35 V
      The engine is running and steering wheel is being turned. Value changes within 16 to 46 V range
      Motor Voltage Motor power supply voltage/
      Min.: 0 V
      Max.: 98.000 V
      The engine is running and steering wheel is not being turned. Approximately 35 V
      The engine is running and steering wheel is being turned. Value changes within 4 to 46 V range
      Motor Terminal Volt(U) Motor terminal voltage (U phase)/
      Min.: 0 V
      Max.: 98.000 V
      The engine is running and steering wheel is being turned. Value changes within 4 to 46 V range
      Motor Terminal Volt(V) Motor terminal voltage (V phase)/
      Min.: 0 V
      Max.: 98.000 V
      The engine is running and steering wheel is being turned. Value changes within 4 to 46 V range
      Motor Terminal Volt(W) Motor terminal voltage (W phase)/
      Min.: 0 V
      Max.: 98.000 V
      The engine is running and steering wheel is being turned. Value changes within 4 to 46 V range
      Torque Sensor 1 Output Torque sensor 1 output value/
      Min.: 0 V
      Max.: 5 V
      The engine is running and steering wheel is not turned (without load). 2.3 to 2.7 V
      The engine is running and steering wheel is turned to right with vehicle stopped. 2.5 to 3.8 V
      The engine is running and steering wheel is turned to left with vehicle stopped. 1.2 to 2.5 V
      Torque Sensor 2 Output Torque sensor 2 output value/
      Min.: 0 V
      Max.: 5 V
      The engine is running and steering wheel is not turned (without load). 2.3 to 2.7 V
      The engine is running and steering wheel is turned to right with vehicle stopped. 1.2 to 2.5 V
      The engine is running and steering wheel is turned to left with vehicle stopped. 2.5 to 3.8 V
      TRQ1 Zero Point Value Zero point value of torque sensor 1/
      Min.: 0 V
      Max.: 5 V
      The engine is running and steering wheel is not being turned. Values differ depending on vehicle
      TRQ2 Zero Point Value Zero point value of torque sensor 2/
      Min.: 0 V
      Max.: 5 V
      The engine is running and steering wheel is not being turned. Values differ depending on vehicle