P0456 on the 2006 Nissan Titan
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.
| NTB17-082 | 2017-10-25. Service bulletin. NISSAN; DTC P0456 CAUSED BY EVAP LEAK AT VENT CONTROL VALVE O-RING IF YOU CONFIRM The MIL is ON in an APPLIED VEHICLE with DTC P0456 (EVAP VERY SML LEAK) AND - DTC P0456 is not caused by a loose fuel fill cap (refer to NTB13-097). - An EVAP leak has been detected where the vent control valve mounts to the canister. - The vent control valve O-ring seal is determined to be the cause. ACTION 1. DO NOT REPLACE the vent control valve. 2. Replace the vent control valve O-ring seal (O-ring). - Refer to SERVICE PROCEDURE on page 2. |
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| NTB17-082a | 2017-10-15. Service bulletin. NISSAN; DTC P0456 CAUSED BY EVAP LEAK AT VENT CONTROL VALVE O-RING This bulletin has been amended. The APPLIED VEHICLES and CLAIMS INFORMATION sections have been revised. No other changes have been made. Please discard previous versions of this bulletin. |
2 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.