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Home >> Lexus >> 2007 >> RX 400h AWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 334 (Power Steering) >> Electronic Power Steering System >> Freeze Frame Data
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Freeze Frame Data

WARNING: This page is about a different car, the 2008 Toyota RAV4. However, it is still accessible from the selected car via links, so may be relevant.
  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 ignition switch ON and park the vehicle on level ground. Check the freeze frame data by using the Techstream.
    1. Connect the Techstream (with CAN VIM) 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 

      MEASUREMENT ITEM CHART

      Tester Display Measurement Item/Range Inspection Condition Reference Value
      Meter Vehicle Velocity Vehicle speed from meter:
      Min.: 0 km/h (0 mph)
      Max.: 300 km/h (187.5 mph)      		 Vehicle stopped 0 km/h (mph)
      Vehicle driven at constant speed No significant fluctuation
      Engine Revolution Show the engine revolution:
      Min.: 0 rpm
      Max.: 12800 rpm      		 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      		 Power steering is in operation Value changes in proportion to steering effort
      Command Value Current Demanded amount of current to motor:
      Min.: -327.68 A
      Max.: 327.67 A      		 Power steering is in operation Value changes in proportion to steering effort
      Steering Angle Velocity Steering angle speed:
      Min.: -32768 deg/s
      Max.: 32767 deg/s      		 Steering wheel is turned Value changes in proportion to steering effort
      Thermistor Temperature ECU substrate temperature:
      Min.: -40°C
      Max.: 150°C      		 Ignition switch ON -
      PIG Power Supply Power source voltage to activate motor:
      Min.: 0 V
      Max.: 20.1531 V      		 Power steering in operation 10 to 14 V
      IG Power Supply ECU power source voltage:
      Min.: 0 V
      Max.: 20.1531 V      		 Ignition switch ON 10 to 14 V
      Steering Wheel Torque Steering wheel torque:
      Min.: -327.68 Nm
      Max.: 7 Nm      		 - -
      Motor Rotation Angle Motor rotation angle:
      Min.: 0 deg
      Max.: 1441.77 deg      		 Power steering in operation During steering operation, motor rotation angle value changes from 0 to 1441.77 deg
      Motor Voltage Motor power supply voltage: 0 V
      Max.: 45.955 V      		 Power steering in operation -
      Motor Terminal Volt (U) Motor terminal voltage (U phase):
      Min.: 0 V
      Max.: 46.667 V      		 Steering wheel is turned While turning the steering wheel, a value within the range of 1 V to approximately 0.7 V less than the battery voltage is displayed. (The value changes according to the steering load.)
      Motor Terminal Volt (V) Motor terminal voltage (V phase):
      Min.: 0 V
      Max.: 46.667 V      		 Steering wheel is turned While turning the steering wheel, a value within the range of 1 V to approximately 0.7 V less than the battery voltage is displayed. (The value changes according to the steering load.)
      Motor Terminal Volt (W) Motor Terminal voltage (W phase):
      Min.: 0 V
      Max.: 46.667 V      		 Steering wheel is turned While turning the steering wheel, a value within the range of 1 V to approximately 0.7 V less than the battery voltage is displayed. (The value changes according to the steering load.)
      Battery Voltage Battery voltage:
      Min.: 0 V
      Max.: 25.5 V      		 - 10 to 14 V
      PS Assist Signal Power steering assist signal:
      ON or OFF      		 - -
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