Adult Judgment; Initial Check - Toyota 2006 PRIUS Manual

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Adult Judgment

When the judgment value is higher than criteria value "B", the occupant classification ECU judges that
the seat is being occupied by an adult.
If the power source mode is selected to IG-ON in this state, the system performs an initial check and
illuminates the AIRBAG ON indicator light, indicating that the front passenger airbag and front
passenger side airbag are active.
Front Passenger
Airbag
Front Passenger
Side Airbag
Front Passenger Seat
Belt Pretensioner
After the occupant classification ECU judges that the occupant is as adult, and if the judgment value is
determined as criteria value "B" or less according to occupant load movement, the ECU continues adult
judgment for approximately 10 seconds before switching the child judgment.

Initial Check

After the power source mode is selected to IG-ON, the airbag sensor assembly lights up the AIRBAG
ON/OFF indicator lights based on the timing chart below in order to check the indicator light circuits.
IG-ON
Power Source
Mode
OFF
ON
AIRBAG OFF
Indicator Light
OFF
ON
AIRBAG ON
Indicator Light
OFF
NEW FEATURES - SRS AIRBAG SYSTEM
Occupant Classification ECU
Adult: "B" < Judgment Value
Airbag
Sensor
Assembly
4 sec.
4 sec.
ON or OFF Signal
AIRBAG OFF Indicator Light
AIRBAG ON Indicator Light
2 sec.
2 sec.
ON/OFF condition depends on the
front passenger detection result.
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