# P0456 on the 2005 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.

## Bulletins for this model year that name P0456

- [10120566](https://open.wenmarpro.com/bulletins/10120566), 2017-10-25: 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.
- [10119249](https://open.wenmarpro.com/bulletins/10119249), 2017-10-15: 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.