P0420 on the 2013 Lincoln MKT
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.
| 20M01 | 2020-04-02. Service bulletin. In the affected vehicles, it may be possible that certain driving maneuvers can result in an overheated catalytic converter, catalyst degradation, and an illuminated malfunction indicator light (MIL) with diagnostic trouble codes (DTCs) P0420 and/or P0430 stored in the powertrain control module (PCM). |
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| TSB-14-0102 | 2014-09-16. Service bulletin. FORD/LINCOLN: DIAGNOSTIC TROUBLE CODE (DTC) P0420 AND/OR P0430, THE MALFUNCTION INDICATOR LAMP (MIL), ON SOME VEHICLES, WILL BE ILLUMINATED AND THE POWERTRAIN CONTROL MODULE (PCM) WOULD BE REPROGRAM WITH LATEST CALIBRATION. MODEL 2013-2014 POLICE EXPLORER, TAURUS, MKT LIVERY, MKS. *PE |
2 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.