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P0456 on the 2011 Toyota Sienna

The bulletins listed name this code in NHTSA's summary, or are about the same components. A bulletin or a recall listed here may apply to the model year. None of it is a diagnosis.

Nobody has written a description of this code yet.

Bulletins for this model year that name P0456
SB-0130-102010-09-17. Service bulletin. TOYOTA: ENGINE/HYBRID SYSTEM. ENGINE CONTROL. SOME VEHICLES MAY EXHIBIT A MIL ON CONDITION WITH DIAGNOSTIC TROUBLE CODE (DTC) P0456 STORED IN THE ENGINE CONTROL MODULE OR ECM (SAE TERM:POWERTRAIN CONTROL MODULE/PCM). *PE

1 on file from NHTSA, as of 2026-10-19. See them in the bulletin list. A bulletin lists model years: read the document for which vehicles it concerns.