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 B2277: Detecting Vehicle Submersion: Procedure
2010 Lexus LS 460L AWDSECTION Procedure
- CHECK WHETHER DTC OUTPUT RECURS
- Clear the DTCs. Refer to DTC CHECK / CLEAR .
- Check whether DTC B2277 recurs 30 seconds or more after the engine switch is turned on (IG).
OK
No DTC is output.
NG → REPLACE MAIN BODY ECU
OK → END (SYSTEM IS OK)
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.