Tundra 2WD V6-4.0L (1GR-FE) (2005)
Seat Occupant Sensor: Description and Operation
OPERATION
CAUTION: Be sure to perform the initialization of the occupant classification ECU if any of the following conditions occur. If the initialization is not
performed, the SRS may not operate properly.
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The occupant classification ECU is replaced.
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Accessories (seatback tray, seat cover, etc.) are installed to the vehicle.
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The passenger seat is removed from the vehicle, and then reinstalled or replaced.
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The passenger airbag ON/OFF indicator light ("OFF") comes on when the passenger seat is not occupied.
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The vehicle is brought to the workshop for repair due to an accident or collision.
OCCUPANT CLASSIFICATION ECU
The occupant classification ECU is mounted in the passenger seat. Based on the information sent from the occupant classification ECU, the airbag sensor
assembly determines whether the SRS should be activated or not. The occupant classification ECU cannot be disassembled.