# P0456 on the 2019 Dodge Charger

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

- [10236933](https://open.wenmarpro.com/bulletins/10236933), 2023-05-30: wiTECH Small Leak Verification Test \(SLVT\) \- P0456\-EVAP SYSTEM SMALL LEAK
- [10229175](https://open.wenmarpro.com/bulletins/10229175), 2023-01-09: Flash: Powertrain Control Module \(PCM\) Updates This bulletin involves reprogramming the PCM with the latest available software. Customers may experience a Malfunction Indicator Lamp \(MIL\) illumination. Upon further investigation the technician may find that one or moreof the following DTCs have been set: P0452 \- EVAP Pressure Switch Stuck Closed. P0455 \- EVAP System Large Leak. P0440 \- General EVAP System Failure. P0456 \- EVAP System Small Leak.If DTC P0456 is present use the wiTECH Small Leak Verification Test \(SLVT\)to determine if a leak is present in the system. Customers may also experience one or more of the following: Vehicle will fail to start when cold at times. A noise heard from the drivetrain while stationary and vehicle is inSport/Track modes. Extended engine crank times.
- [10223213](https://open.wenmarpro.com/bulletins/10223213), 2022-10-17: Flash: Powertrain Control Module \(PCM\) Updates This bulletin involves reprogramming the PCM with the latest available software. Customers may experience a Malfunction Indicator Lamp \(MIL\) illumination. Upon further investigation the technician may find that one or moreof the following DTCs have been set: P0452 \- EVAP Pressure Switch Stuck Closed. P0455 \- EVAP System Large Leak. P0440 \- General EVAP System Failure. P0456 \- EVAP System Small Leak.If DTC P0456 is present use the wiTECH Small Leak Verification Test \(SLVT\)to determine if a leak is present in the system. Customers may also experience one or more of the following: Vehicle will fail to start when cold at times. A noise heard from the drivetrain while stationary and vehicle is inSport/Track modes. Extended engine crank times.
- [10221882](https://open.wenmarpro.com/bulletins/10221882), 2022-09-26: Flash: Powertrain Control Module \(PCM\) Updates This bulletin involves reprogramming the PCM with updated software. Customers may experience a Malfunction Indicator Lamp \(MIL\) illumination. Upon further investigation the technician may find that the followingDiagnostic Trouble Code \(DTC\) has been set:P0456 \- EVAP System Small Leak.If DTC P0456 is present use the wiTECH Small Leak Verification test \(SLVT\) to determine if a leak is present in the system. In addition, customers may experience the following concern: An unpleasant odor in the vehicle under certain extreme ambient conditions\(Police Group \(Sales Code AHB\) or Special Service Group \(Sales Code AHV\) only\).
- [10220831](https://open.wenmarpro.com/bulletins/10220831), 2022-09-26: Flash: Powertrain Control Module \(PCM\) Updates This bulletin involves reprogramming the PCM with the latest available software. Customers may experience a Malfunction Indicator Lamp \(MIL\) illumination. Upon further investigation the technician may find that one or moreof the following DTCs have been set: P0452 \- EVAP Pressure Switch Stuck Closed. P0455 \- EVAP System Large Leak. P0440 \- General EVAP System Failure. P0456 \- EVAP System Small Leak.If DTC P0456 is present use the wiTECH Small Leak Verification Test \(SLVT\)to determine if a leak is present in the system. Customers may also experience one or more of the following: Vehicle will fail to start when cold at times. A noise heard from the drivetrain while stationary and vehicle is inSport/Track modes. Extended engine crank times.
- [10220071](https://open.wenmarpro.com/bulletins/10220071), 2022-09-15: wiTECH Small Leak Verification Test \(SLVT\) \- P0456\-EVAP SYSTEM SMALL LEAK
- [10212435](https://open.wenmarpro.com/bulletins/10212435), 2022-05-31: Flash: Powertrain Control Module \(PCM\) Updates This bulletin involves reprogramming the PCM with the latest available software. Customers may experience a Malfunction Indicator Lamp \(MIL\) illumination. Upon further investigation the technician may find that one or moreof the following DTCs have been set: P0452 \- EVAP Pressure Switch Stuck Closed. P0455 \- EVAP System Large Leak. P0440 \- General EVAP System Failure. P0456 \- EVAP System Small Leak.If DTC P0456 is present use the wiTECH Small Leak Verification Test \(SLVT\)to determine if a leak is present in the system. Customers may also experience one or more of the following: Vehicle will fail to start when cold at times. A noise heard from the drivetrain while stationary and vehicle is inSport/Track modes. Extended engine crank times.
- [10180272](https://open.wenmarpro.com/bulletins/10180272), 2020-09-28: Flash: Powertrain Control Module \(PCM\) Updates This bulletin involves reprogramming the PCM with updated software. Customers may experience a Malfunction Indicator Lamp \(MIL\) illumination. Upon further investigation the technician may find that the followingDiagnostic Trouble Code \(DTC\) has been set:P0456 \- EVAP System Small Leak.If DTC P0456 is present use the wiTECH Small Leak Verification test \(SLVT\) to determine if a leak is present in the system. In addition, customers may experience the following concern: An unpleasant odor in the vehicle under certain extreme ambient conditions\(Police Group \(Sales Code AHB\) or Special Service Group \(Sales Code AHV\) only\).
- [10175734](https://open.wenmarpro.com/bulletins/10175734), 2020-05-26: Flash: Powertrain Control Module \(PCM\) Updates This bulletin involves reprogramming the PCM with the latest available software. Customers may experience a Malfunction Indicator Lamp \(MIL\) illumination. Upon further investigation the technician may find that the following Diagnostic Trouble Code \(DTC\) has been set:P0456 \- EVAP System Small Leak.If DTC P0456 is present use the wiTECH Small Leak Verification test \(SLVT\) to determine if a leak is present in the system. Customers may also experience one or more of the following:A noise heard from the drivetrain while stationary and vehicle is in Sport/Track modes. Extended engine crank times.
- [10175730](https://open.wenmarpro.com/bulletins/10175730), 2020-05-26: Flash: Powertrain Control Module \(PCM\) Updates This bulletin involves reprogramming the PCM with the latest available software. Customers may experience a Malfunction Indicator Lamp \(MIL\) illumination. Upon further investigation the technician may find that the followingDiagnostic Trouble Code \(DTC\) has been set:P0456 \- EVAP System Small Leak.If DTC P0456 is present use the wiTECH Small Leak Verification Test \(SLVT\) to determine if a leak is present in the system. Customers may also experience the following: Noise heard from the drivetrain while stationary and vehicle is in Sport/Trackmodes.