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.
2011 Toyota Avalon BaseFACTORY OEM SERVICE PROCEDURE
Fail-Safe Chart
If any of the following codes is recorded, the power source control ECU enters the fail-safe mode.
POWER SOURCE CONTROL ECU
| DTC No. | Item | Fail-safe Function | Fail-safe Deactivation Condition |
|---|---|---|---|
| B2283 | Vehicle speed sensor circuit | Steering does not lock | "Pass" condition is detected |
CERTIFICATION ECU
| DTC No. | Item | Fail-safe Function | Fail-safe Deactivation Condition |
|---|---|---|---|
| B2781 | Steering lock ECU malfunction | Engine can not be started | "Pass" condition is detected |
| B2782 | Steering lock ECU IGE signal circuit | Engine can not be started | "Pass" condition is detected |
Factory Service Tools
Use the Manual With the Right Hardware
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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.