Occupant Classification System Data List / Active Test

Vehicle Interior. Corolla. Zre142 Aze141
Supplemental Restraint Systems. Corolla. Zre142 Aze141

  1. DATA LIST FOR OCCUPANT CLASSIFICATION ECU

Occupant Classification System -- Data List / Active Test


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.
NOTICE:
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.

DATA LIST FOR OCCUPANT CLASSIFICATION ECU

  1. Turn the ignition switch off.

  2. Connect the Techstream to the DLC3.

  3. Turn the ignition switch to ON 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
    		-