# P0456 on the 2014 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.
- [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.
- [10141279](https://open.wenmarpro.com/bulletins/10141279), 2018-06-18: 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.
- [10121701](https://open.wenmarpro.com/bulletins/10121701), 2017-11-03: Flash: Powertrain Diagnostic and System Improvements This bulletin involves reprogramming the 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 DTCs set in the PCM memory: · \*\*P0335 \- Crankshaft Position Sensor Circuit. · P0456 \- Evaporative System Small Leak \(applies to 2014 MY only\). · P2299 \- Brake Pedal Position/Accelerator Pedal Position Incompatible \(applies to 2015 MY only\).\*\* · 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.