P0456 on the 2008 Toyota Corolla
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.
| T-SB-0235-09 | 2010-04-07. Service bulletin. TOYOTA: ENGINE CONTROL. SOME MODEL VEHICLES MAY EXHIBIT A MIL ON CONDITION WITH DIAGNOSTIC TROUBLE CODE (DTC) P0456. EVAPORATIVE EMISSION CONTROL SYSTEM LEAK DETECTED (VERY SMALL LEAK). THE ENGINE CONTROL MODULE/ECM (SAE TERM: POWERTRAIN CONTROL MODULE/PCM) LOGIC HAS BEEN MODIFIED TO REDUCE THE POSSIBILITY OF THIS CONDITION OCCURRING. *PE |
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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.