Source wording can vary by vehicle and suffix. It is shown as written, not as a universal diagnosis.
CHRYSLER, DODGE
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): ●…
CHRYSLER, DODGE, JEEP
Reported code forms P0456
Fuel Tank and Fuel Evap System Components 1) For JK MIL On ? P0441: Before replacing this part due to fault code P0441, check for restriction due to plastic over-flash in the Purge Hose Port of the Intake Manifold. If…
CHRYSLER, DODGE
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. SYMPTOM/CONDITION: A SMALL NUMBER OF CUSTOMERS…
CHRYSLER, DODGE
Reported code forms P0456
VEHICLE WITH PROPERLY FUNCTIONING EVAPORATIVE EMISSIONS SYSTEM REPEATEDLY SETS DIAGNOSTIC TROUBLE CODE P0456 WHEN CUSTOMER REGULARLY COMMUTES ON A STEEP GRADE. *TT
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
CHRYSLER, DODGE
Reported code forms P0456
SUBJECT REGARDING MALFUNCTION INDICATOR LAMP ILLUMINATION, ERRONOUS DIAGNOSTIC TROUBLE CODE (DTC) P0456, EVAP LEAK MONITOR 0.020 LEAK DETECTED. *SLC
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