P0456 on the 2018 Fiat 500X
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.
| 1804823 | 2023-05-30. Service bulletin. wiTECH Small Leak Verification Test (SLVT) - P0456-EVAP SYSTEM SMALL LEAK |
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| 1808919 | 2022-09-15. Service bulletin. wiTECH Small Leak Verification Test (SLVT) - P0456-EVAP SYSTEM SMALL LEAK |
| 18-089-19 | 2019-12-16. Service bulletin. wiTECH Small Leak Verification Test (SLVT) - P0456-EVAP SYSTEM SMALL LEAK |
| 18-042-19 | 2019-07-15. Service bulletin. Flash: Powertrain Control Module (PCM) Update This bulletin involves reprogramming the PCM with the latest software. Customers may experience a Malfunction Indicator Lamp (MIL) illumination. Upon further investigation the technician may find that one or more of the following Diagnostic Trouble Codes (DTCs) have been set:P0456 - EVAP System Small Leak. P0340 - Camshaft Position Sensor Circuit - Bank 1 Sensor 1. P0016 - Crankshaft/Camshaft Timing Misalignment - Bank 1 Sensor 1. P0606 - Control Module Processor. |
4 on file from NHTSA, as of 2026-10-19. See them in the bulletin list. A bulletin lists model years: read the document for which vehicles it concerns.