P0456 · Manufacturer communications
Source wording can vary by vehicle and suffix. It is shown as written, not as a universal diagnosis.
JEEP
Reported code forms P0456
Flash: Powertrain Control Module (PCM) Updates *Customers must experience a Malfunction Indicator Lamp (MIL) illumination and the vehicle must exhibit/set one or more of the following Diagnostic Trouble Codes (DTCs): ●…
Read communication ↗
JEEP
Reported code forms P0456
"Fuel Tube Replacement **Customers must experience a Malfunction Indicator Lamp (MIL) illumination. Upon further investigation the technician may find the following DTC has been set:** ● P0456 - EVAP System Small Leak."
Read communication ↗
JEEP
Reported code forms P0456
Flash: Powertrain Control Module (PCM) Updates Customers may experience a Malfunction Indicator Lamp (MIL) illumination. Upon further investigation the technician may find one or more of the following Diagnostic Trouble…
Read communication ↗
JEEP
Reported code forms P0456
Fuel Tank Filler Tube Customers may experience a Malfunction Indicator Lamp (MIL) illumination. Upon further investigation the technician may find the following DTC has been set: ? P0456 - EVAP System Small Leak. This…
Read communication ↗
JEEP
Reported code forms P0456
Flash: Powertrain Control Module (PCM) Updates Customers may experience a Malfunction Indicator Lamp (MIL) illumination. Upon further investigation the technician may find one or more of the following Diagnostic Trouble…
Read communication ↗
DODGE, JEEP
Reported code forms P0456
Fuel Vapor Hose Not Connected This bulletin involves inspecting and connecting a loose fuel vapor hose. Customers may experience a Malfunction Indicator Lamp (MIL) illumination. Upon further investigation the technician…
Read communication ↗
JEEP
Reported code forms P0456
Flash: Powertrain Control Module (PCM) and Transmission Control Module (TCM) Updates This is a coordinated bulletin that involves reprogramming the PCM and TCM,at the same time, with the latest available software.Both…
Read communication ↗
JEEP
Reported code forms P0456
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…
Read communication ↗
JEEP
Reported code forms P0456
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…
Read communication ↗
JEEP
Reported code forms P0456
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…
Read communication ↗
JEEP
Reported code forms P0456
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…
Read communication ↗
JEEP
Reported code forms P0456
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…
Read communication ↗
JEEP
Reported code forms P0456
Flash: Powertrain Diagnostic And System Enhancements This bulletin involves reprogramming the PCM with the latest available software. Customers may experience a Malfunction Indicator Lamp (MIL) illumination. Upon…
Read communication ↗
JEEP
Reported code forms P0456
Flash: Transmission Shift And Drivability Enhancements Flash: Transmission Shift And Drivability Enhancements Customers may experience a Malfunction Indicator Lamp (MIL) illumination. Upon further investigation the…
Read communication ↗
DODGE, JEEP
Reported code forms P0456
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)…
Read communication ↗
DODGE, JEEP
Reported code forms P0456
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…
Read communication ↗
DODGE, JEEP
Reported code forms P0456
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…
Read communication ↗
DODGE, JEEP
Reported code forms P0456
Flash: Powertrain Diagnostic And System Improvements This bulletin involves selectively erasing and reprogramming the Powertrain Control Module (PCM) with new software. The customer may describe a Malfunction Indicator…
Read communication ↗
DODGE, JEEP
Reported code forms P0456
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…
Read communication ↗
DODGE, JEEP
Reported code forms P0456
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…
Read communication ↗
DODGE, JEEP
Reported code forms P0456
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…
Read communication ↗
DODGE, JEEP
Reported code forms P0456
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…
Read communication ↗
DODGE, JEEP
Reported code forms P0456
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…
Read communication ↗
CHRYSLER, DODGE, JEEP, PLYMOUTH
Reported code forms P0456
MALFUNCTION INDICATOR LAMP (MIL) ILLUMINATION, DIAGNOSTIC TROUBLE CODE (DTC) P0442, P0455, OR P0456 - LEAK DETECTION PUMP (LDP), LEAK DETECTED. THIS BULLETIN SUPERSEDES 25-001-02 DATED FEB 11, 2002. *TT
Read communication ↗
CHRYSLER, DODGE, EAGLE, JEEP, PLYMOUTH
Reported code forms P0456
SUBJECT REGARDING MISDIAGNOSED LEAK DETECTION PUMP SYSTEMS WITH DIAGNOSTIC TROUBLE CODES P1494, P0442 P0455, OR P0456. *TT
Read communication ↗