# P0456 on the 2015 Dodge Durango

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
- [10228114](https://open.wenmarpro.com/bulletins/10228114), 2022-12-19: Flash: Powertrain Diagnostic and System Improvements This bulletin involves reprogramming the Powertrain Control Module \(PCM\) with the latest available software. The following powertrain system improvements/enhancements are included in this software release. These symptoms are broken down by vehicle: 2015 WK 3.0L engine \(Sales Code EHD\) · \*\* P0456 \- EVAP System Small Leak.\*\* · Enhancements to remote engine start. 2015 WK 5.7L engine \(Sales Code EZH\) · \*\* P0456 \- EVAP System Small Leak.\*\* · U0140\-00 \- Lost Communication with Body Control Module \(BCM\). · Enhancements to improve a slight lag or hesitation during Multi Displacement System \(MDS\) mode transitions. · Enhancements to improve a slight drop in engine RPM when the vehicle is shifted to reverse or drive within 3 seconds of a cold start. 2014 WD 5.7L engine \(Sales Code EZH\) · Enhancements to improve a slight drop in engine RPM when the vehicle is shifted to reverse or drive within 3 seconds of a cold start. 2015 WD 5.7L engine \(Sales Code EZH\) · \*\* P0456 \- EVAP System Small Leak.\*\* · Enhancements to remote engine start.
- [10228113](https://open.wenmarpro.com/bulletins/10228113), 2022-12-19: Flash: Powertrain Diagnostic and System Improvements This bulletin involves reprogramming the Powertrain Control Module \(PCM\) with the latest available software. A small number of customers may experience a Malfunction Indicator Lamp \(MIL\) illumination. Upon further investigation a technician may find the following Diagnostic Trouble Codes \(DTCs\) set in the PCM memory: · \*\* P0456 \- EVAP System Small Leak.\*\* · P0301\- Cylinder 1 Misfire. · P0302\- Cylinder 2 Misfire. · P0303\- Cylinder 3 Misfire. · P0304\- Cylinder 4 Misfire. · P0305\- Cylinder 5 Misfire. · P0306\- Cylinder 6 Misfire · P0300\- Multiple Cylinder Misfire. · P0513\- Invalid SKIM Key.
- [10220071](https://open.wenmarpro.com/bulletins/10220071), 2022-09-15: wiTECH Small Leak Verification Test \(SLVT\) \- P0456\-EVAP SYSTEM SMALL LEAK
- [10217423](https://open.wenmarpro.com/bulletins/10217423), 2022-08-08: P0455/P0456 Set In The Powertrain Control Module \(PCM\) This bulletin involves replacing the evaporative emissions purge valve hose due to a split in the hose that will prevent the system from sealing. The customer may experience a Malfunction Indicator Lamp \(MIL\) while driving. Upon further investigation the technician may find one or more of the following Diagnostic Trouble Codes \(DTCs\) set in the PCM memory: ? P0455 EVAP System Large Leak ? P0456 EVAP System Small Leak
- [10217384](https://open.wenmarpro.com/bulletins/10217384), 2022-08-08: P0455 And/Or P0456 Set In The PCM This bulletin involves replacing the evaporative emissions purge valve hose due to a split in the hose that will prevent the system from sealing. The customer may experience a Malfunction Indicator Lamp \(MIL\) while driving. Upon further investigation the technician may find one or more of the following Diagnostic Trouble Codes \(DTCs\) set in the PCM memory. ? P0455 EVAP System Large Leak ? P0456 EVAP System Small Leak
- [10216185](https://open.wenmarpro.com/bulletins/10216185), 2022-07-25: P0455/P0456 Set In The Powertrain Control Module \(PCM\) This bulletin involves replacing the evaporative emissions purge valve hose due to a split in the hose that will prevent the system from sealing. The customer may experience a Malfunction Indicator Lamp \(MIL\) while driving. Upon further investigation the technician may find one or more of the following Diagnostic Trouble Codes \(DTCs\) set in the PCM memory: ? P0455 EVAP System Large Leak ? P0456 EVAP System Small Leak
- [10216146](https://open.wenmarpro.com/bulletins/10216146), 2022-07-25: P0455 And/Or P0456 Set In The PCM This bulletin involves replacing the evaporative emissions purge valve hose due to a split in the hose that will prevent the system from sealing. The customer may experience a Malfunction Indicator Lamp \(MIL\) while driving. Upon further investigation the technician may find one or more of the following Diagnostic Trouble Codes \(DTCs\) set in the PCM memory. ? P0455 EVAP System Large Leak ? P0456 EVAP System Small Leak
- [10181479](https://open.wenmarpro.com/bulletins/10181479), 2020-10-26: Flash: Powertrain Diagnostic and System Improvements This bulletin involves reprogramming the Powertrain Control Module \(PCM\) with the latest available software. The following powertrain system improvements/enhancements are included in this software release. These symptoms are broken down by vehicle: 2015 WK 3.0L engine \(Sales Code EHD\) · \*\* P0456 \- EVAP System Small Leak.\*\* · Enhancements to remote engine start. 2015 WK 5.7L engine \(Sales Code EZH\) · \*\* P0456 \- EVAP System Small Leak.\*\* · U0140\-00 \- Lost Communication with Body Control Module \(BCM\). · Enhancements to improve a slight lag or hesitation during Multi Displacement System \(MDS\) mode transitions. · Enhancements to improve a slight drop in engine RPM when the vehicle is shifted to reverse or drive within 3 seconds of a cold start. 2014 WD 5.7L engine \(Sales Code EZH\) · Enhancements to improve a slight drop in engine RPM when the vehicle is shifted to reverse or drive within 3 seconds of a cold start. 2015 WD 5.7L engine \(Sales Code EZH\) · \*\* P0456 \- EVAP System Small Leak.\*\* · Enhancements to remote engine start.
- [10181478](https://open.wenmarpro.com/bulletins/10181478), 2020-10-26: Flash: Powertrain Diagnostic and System Improvements This bulletin involves reprogramming the Powertrain Control Module \(PCM\) with the latest available software. A small number of customers may experience a Malfunction Indicator Lamp \(MIL\) illumination. Upon further investigation a technician may find the following Diagnostic Trouble Codes \(DTCs\) set in the PCM memory: · \*\* P0456 \- EVAP System Small Leak.\*\* · P0301\- Cylinder 1 Misfire. · P0302\- Cylinder 2 Misfire. · P0303\- Cylinder 3 Misfire. · P0304\- Cylinder 4 Misfire. · P0305\- Cylinder 5 Misfire. · P0306\- Cylinder 6 Misfire · P0300\- Multiple Cylinder Misfire. · P0513\- Invalid SKIM Key.