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 ECUON-VEHICLE INSPECTION
2009 Toyota Yaris S, 4D Hatchback
On-Vehicle Inspection
2009 Toyota Yaris S, 4D HatchbackSECTION On-Vehicle Inspection
- INSPECT OCCUPANT CLASSIFICATION ECU (for Vehicle not Involved in Collision)
- Perform a diagnostic system check (See DTC CHECK / CLEAR ).
- REMOVE OCCUPANT CLASSIFICATION ECU (for Vehicle Involved in Collision)
- Perform a diagnostic system check (See DTC CHECK / CLEAR ).
- Even if the airbag was not deployed, check if there is any damage to the occupant classification ECU. If there are any defects as those mentioned below, replace the occupant classification ECU with a new one:
- Cracks, dents or chips in the case.
- Cracks or other damage to the connector.
CAUTION: Follow the correct removal and installation procedures.
RENDER: 1.0x
NO RELATED
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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.