P0504 on the 2021 Ford Ecosport
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.
| TSB 22-2011 | 2022-02-04. Service bulletin. Some 2021 EcoSport vehicles may exhibit a condition where the cruise control system is inoperative with an illuminated powertrain malfunction (wrench) indicator and illuminated brake warning indicator with diagnostic trouble code (DTC) P0504 stored in the powertrain control module (PCM). This may be due to the software in the PCM and/or an incorrectly installed stoplamp switch. To correct this condition, follow the Service Procedure to reprogram the PCM and check for the correct installation of the stoplamp switch. |
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| TSB 21-2422 | 2021-12-01. Service bulletin. Some 2021 EcoSport vehicles equipped with a 1.0L EcoBoost engine may exhibit a condition where the auto start/stop system is inoperative or cruise control disabled with an illuminated powertrain malfunction (wrench) and/or brake warning indicator with diagnostic trouble code (DTC) P164C or P0504 stored in the powertrain control module (PCM). The vehicle may also exhibit an engine stall while braking aggressively from low speed with an auto start/stop indicator lamp flashing and a battery indicator lamp on with a shift to park message in the instrumental panel cluster (IPC). This may be due to the software in the PCM. To correct this condition, follow the Service procedure to reprogram the PCM. |
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.