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Data List / Active Test

WARNING: This page is about a different car, the 2009 Lexus IS F. However, it is still accessible from the selected car via links, so may be relevant.

HINT: 

Using the Techstream to read the Data List allows the values or states of switches, sensors, actuators and other items to be read without removing any parts. This non-intrusive inspection can be very useful because intermittent conditions or signals may be discovered before parts or wiring is disturbed. Reading the Data List information early in troubleshooting is one way to save diagnostic time.

NOTE:

In the table below, the values listed under "Normal Condition" are reference values. Do not depend solely on these reference values when deciding whether a part is faulty or not.

  1. DATA LIST FOR OCCUPANT CLASSIFICATION ECU 
    1. Turn the engine switch off.
    2. Connect the Techstream to the DLC3.
    3. Turn the engine switch on (IG) and turn the Techstream on.
    4. Enter the following menus: Body Electrical / Occupant Detection / Data List.
    5. Check the values by referring to the table below.

      HINT: 

      The Specified Condition for Zero Point Calibration in the table below must be satisfied when the zero point calibration is performed.

      DATA LIST

      Tester Display Measurement Item/Range Normal Condition Specified Condition for Zero Point Calibration Diagnostic Note
      Passenger Classification Passenger classification/
      NG: Data is not determined
      AM50: Adult is seated and seat is in rear position
      AF05: Adult is seated and seat is in front position
      CHILD: Child is seated
      OFF: Vacant      		 AM50/AF05/CHILD/OFF OFF -
      Passenger Buckle SW Buckle switch (Passenger side)/
      Set: Passenger side seat belt is fastened
      Unset: Passenger side seat belt is unfastened
      NG: Data is not determined      		 Unset/Set Unset -
      Pressure Sensor Output Pressure sensor output/
      Min.: 0
      Max.: 255      		 0 to 210 0 to 2 -
      Filtered Pressure Sensor Output Filtered pressure sensor output/
      Min.: 0
      Max.: 255      		 38 to 240 38 to 75 If value is outside range of Specified Condition for Zero Point Calibration, check whether any objects placed on seat cushion and that seat cushion fitted correctly.
      Thermistor Temperature Output Thermistor temperature output/
      Min.: -40°C (-40°F)
      Max.: 90°C (194°F)      		 -40 to 85°C (-40 to 185°F) 3 to 40°C (37 to 104°F) If value is outside range of Specified Condition for Zero Point Calibration, adjust temperature to proper range by using air conditioner, etc.
      Weight Threshold Weight threshold/
      Min.: 0
      Max.: 255      		 36 to 67
      (reference value)      		 36 to 67
      (reference value)      		 -
      Filtered Belt Tension Output Filtered belt tension output/
      Min.: 0
      Max.: 255      		 39 to 229 39 to 64
      (no load)      		 -
      Empty Threshold Value from the Seat Factory Empty threshold value from seat factory/
      Min.: 0
      Max.: 255      		 38 to 75 38 to 75 -
      Allow Threshold Threshold value for adult passenger or not from seat factory/
      Min.: 0
      Max.: 255      		 43 to 64
      (reference value)      		 43 to 64
      (reference value)      		 -
      Number of Present DTC Number of present trouble codes/
      Min.: 0
      Max.: 255      		 0 0 -
      Number of Past DTC Number of past trouble codes/
      Min.: 0
      Max.: 255      		 0 0 -
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