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.
2008 Lexus IS 350FACTORY OEM SERVICE PROCEDURE
Fail-Safe Chart
WARNING: This page is about a different car, the 2011 Toyota Avalon. However, it is still accessible from the selected car via links, so may be relevant.
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
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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.