Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
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HOMESERVICE MANUALSTOYOTA2009YARIS S, 4D HATCHBACKREPAIR AND DIAGNOSISRESTRAINTSAIR BAG, SRSSUPPLEMENTAL RESTRAINT SYSTEMOCCUPANT CLASSIFICATION SYSTEMPRECAUTION
2009 Toyota Yaris S, 4D Hatchback
Occupant Classification System: Precaution
2009 Toyota Yaris S, 4D HatchbackSECTION Precaution
- INSPECTION PROCEDURE FOR VEHICLE INVOLVED IN ACCIDENT
- Perform the zero point calibration and sensitivity check if any of the following conditions apply.
- The occupant classification ECU is replaced.
- Accessories (seatback tray and seat cover, etc.) are installed.
- The front passenger seat is removed from the vehicle.
- The passenger airbag ON/OFF indicator (OFF) comes on when the front passenger seat is not occupied.
- The vehicle is brought to the workshop for repair due to an accident or a collision.
NOTE: When an accident vehicle is brought into the workshop for repair, check the flatness of the floor where the front passenger seat is mounted. If the flatness is not within +- 3.0 mm (0.118 in.), adjust it to the specified range.
- Perform the zero point calibration and sensitivity check if any of the following conditions apply.
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.