{"vehicle":{"id":"2021_ford_f-550","year":2021,"make":"Ford","model":"F-550"},"code":"P0504","generic":true,"description":null,"bulletins":{"as_of":"2026-10-19","count":4,"bulletins":[{"nhtsa_id":10233701,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2023-04-04","date":"2023-03-13","document_id":"SSM 51432","mfr_campaign":null,"component":"PARKING BRAKE","summary":"Some 2020-2022 F-Super Duty vehicles may exhibit a condition where the vehicle will not shift out of park (P). Diagnostic trouble codes (DTC) C0040 and/or P0504 may also be present. Reference TSB 22-2044 to make sure that no water or corrosion is present in the battery junction box (BJB). If Pinpoint Test A: Brake Shift Interlock in Workshop Manual (WSM), Section 307-05 leads to a concern with circuit SBP07 (white/red), remove the left side scuff plate from the floor and inspect circuit SBP07 for any damage. If damage is present, repair as necessary. Refer to Wiring Diagram, Cell 005. Submit a Report a Vehicle Concern form at the bottom of the OASIS screen and attach any available pictures to assist with the engineering investigation.","document":{"url":"https://static.nhtsa.gov/odi/tsbs/2023/MC-10233701-0001.pdf","alternate_url":"https://static.nhtsa.gov/odi/tsbs/2023/MC-10233701-9999.pdf","confirmed":false},"url":"https://open.wenmarpro.com/bulletins/10233701"},{"nhtsa_id":10214495,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2022-06-29","date":"2022-06-16","document_id":"SSM 50864","mfr_campaign":null,"component":"POWER TRAIN","summary":"Some 2020-2022 F-Super Duty vehicles may exhibit a condition where the vehicle will not shift out of park (P). Diagnostic trouble codes (DTC) C0040 and/or P0504 may also be present. Reference TSB 22-2044 to make sure that no water or corrosion is present in the battery junction box (BJB). If Pinpoint Test A: Brake Shift Interlock in Workshop Manual (WSM), Section 307-05 leads to a concern with circuit SBP07 (white/red), remove the left side scuff plate from the floor and inspect circuit SBP07 for any damage. If damage is present, repair as necessary. Refer to Wiring Diagram, Cell 005. Submit a Report a Vehicle Concern form at the bottom of the OASIS screen and attach any available pictures to assist with the engineering investigation.","document":{"url":"https://static.nhtsa.gov/odi/tsbs/2022/MC-10214495-0001.pdf","alternate_url":"https://static.nhtsa.gov/odi/tsbs/2022/MC-10214495-9999.pdf","confirmed":false},"url":"https://open.wenmarpro.com/bulletins/10214495"},{"nhtsa_id":10214488,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2022-06-29","date":"2022-06-14","document_id":"SSM 50848","mfr_campaign":null,"component":"POWER TRAIN","summary":"Some 2020-2022 F-Super Duty vehicles may exhibit a condition where the vehicle will not shift out of park (P). Diagnostic trouble codes (DTC) C0040 and/or P0504 may also be present. Reference TSB 22-2044 to make sure that no water or corrosion is present in the battery junction box (BJB). If Pinpoint Test A: Brake Shift Interlock in Workshop Manual (WSM), Section 307-05 leads to a concern with circuit SPB07 (white/red), remove the left side scuff plate from the floor and inspect circuit SPB07 for any damage. If damage is present, repair as necessary. Refer to Wiring Diagram, Cell 005. Submit a Report a Vehicle Concern form at the bottom of the OASIS screen and attach any available pictures to assist with the engineering investigation.","document":{"url":"https://static.nhtsa.gov/odi/tsbs/2022/MC-10214488-0001.pdf","alternate_url":"https://static.nhtsa.gov/odi/tsbs/2022/MC-10214488-9999.pdf","confirmed":false},"url":"https://open.wenmarpro.com/bulletins/10214488"},{"nhtsa_id":10208141,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2022-02-23","date":"2022-02-16","document_id":"TSB 22-2044","mfr_campaign":null,"component":"ELECTRICAL SYSTEM","summary":"Some 2020-2022 F-Super Duty vehicles may exhibit a condition where the engine will not turn off and/or have various electrical symptoms including a dead battery, horn stays on and no crank/no start. The vehicle may also have an illuminated anti-lock braking system (ABS) indicator with diagnostic trouble codes (DTCs) C0020 and U3003 in the ABS module. The vehicle may not shift out of park (P) and/or have continuously illuminated brake lamps with DTCs P0504 and/or C0040. This may be a result of water/moisture intrusion into the battery junction box (BJB). The BJB is located under the hood of the vehicle. This water/moisture intrusion may be related to the BJB cover not installed completely or broken cover tabs/locking fingers allowing water/moisture into the BJB. To correct the condition, follow the Service Procedure steps to inspect for water/moisture intrusion into the BJB and replace the BJB if water/moisture intrusion is found.","document":{"url":"https://static.nhtsa.gov/odi/tsbs/2022/MC-10208141-0001.pdf","alternate_url":"https://static.nhtsa.gov/odi/tsbs/2022/MC-10208141-9999.pdf","confirmed":false},"url":"https://open.wenmarpro.com/bulletins/10208141"}],"url":"https://open.wenmarpro.com/makes/ford/f-550/2021/bulletins?code=P0504"},"related":{"components":[],"bulletins":[],"recalls":{"may_apply":true,"recalls":[],"lookup":{"nhtsa":"https://www.nhtsa.gov/recalls","tc":"https://wwwapps.tc.gc.ca/Saf-Sec-Sur/7/VRDB-BDRV/search-recherche/menu.aspx?lang=eng","maker":null}}},"url":"https://open.wenmarpro.com/makes/ford/f-550/2021/codes/P0504","note":"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.","attribution":["Contains information licensed under the Open Government Licence – Canada."]}