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.
DTC B1794 Open in Occupant Classification ECU Battery Positive Line: Description
2009 Toyota Yaris S, 4D HatchbackSECTION Description
DTC B1794 is set when a malfunction is detected in the occupant classification ECU battery positive line.
DTC DETECTING CONDITION CHART
| DTC No. | DTC Detecting Conditions | Trouble Areas |
|---|---|---|
| B1794 |
|
|
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.