{"vehicle":{"id":"2021_ford_f-450","year":2021,"make":"Ford","model":"F-450"},"code":"U3003","generic":true,"description":null,"bulletins":{"as_of":"2026-10-19","count":5,"bulletins":[{"nhtsa_id":10235151,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2023-05-04","date":"2023-04-24","document_id":"TSB 23-2133","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. 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 to inspect for water/moisture intrusion into the BJB and replace the BJB and cover if water/moisture intrusion is found.","document":{"url":"https://static.nhtsa.gov/odi/tsbs/2023/MC-10235151-0001.pdf","alternate_url":"https://static.nhtsa.gov/odi/tsbs/2023/MC-10235151-9999.pdf","confirmed":false},"url":"https://open.wenmarpro.com/bulletins/10235151"},{"nhtsa_id":10226938,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2022-12-02","date":"2022-11-18","document_id":"TSB 22-2443","mfr_campaign":null,"component":"UNKNOWN OR OTHER; EQUIPMENT:ELECTRICAL; ELECTRICAL SYSTEM","summary":"This article supersedes TSB 22-2313 to update the Parts List, Service Procedure, and vehicle production fix dates. 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. 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 to inspect for water/moisture intrusion into the BJB and replace the BJB and cover if water/moisture intrusion is found.","document":{"url":"https://static.nhtsa.gov/odi/tsbs/2022/MC-10226938-0001.pdf","alternate_url":"https://static.nhtsa.gov/odi/tsbs/2022/MC-10226938-9999.pdf","confirmed":false},"url":"https://open.wenmarpro.com/bulletins/10226938"},{"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"},{"nhtsa_id":10206844,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2022-02-04","date":"2022-01-12","document_id":"TSB 22-2004","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 DTCs C0020 and U3003 in the ABS module. 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-10206844-0001.pdf","alternate_url":"https://static.nhtsa.gov/odi/tsbs/2022/MC-10206844-9999.pdf","confirmed":false},"url":"https://open.wenmarpro.com/bulletins/10206844"},{"nhtsa_id":10200732,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2021-09-02","date":"2021-08-16","document_id":"TSB 21-2176","mfr_campaign":null,"component":"ELECTRICAL SYSTEM","summary":"Some 2020-2021 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 DTCs C0020 and U3003 in the ABS module. 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/2021/MC-10200732-0001.pdf","alternate_url":"https://static.nhtsa.gov/odi/tsbs/2021/MC-10200732-9999.pdf","confirmed":false},"url":"https://open.wenmarpro.com/bulletins/10200732"}],"url":"https://open.wenmarpro.com/makes/ford/f-450/2021/bulletins?code=U3003"},"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-450/2021/codes/U3003","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."]}