{"vehicle":{"id":"2021_ford_bronco-sport","year":2021,"make":"Ford","model":"Bronco Sport"},"code":"P0420","generic":true,"description":null,"bulletins":{"as_of":"2026-10-19","count":2,"bulletins":[{"nhtsa_id":10241542,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2023-09-01","date":"2023-08-16","document_id":"TSB 23-2259","mfr_campaign":null,"component":"ENGINE AND ENGINE COOLING; ENGINE AND ENGINE COOLING:EXHAUST SYSTEM:EMISSION CONTROL:CATALYTIC CONVERTOR","summary":"Some 2020-2022 Escape built and 2021-2023 Bronco Sport vehicles, built on or before 28-Sep-2022, equipped with a 1.5L Ecoboost engine and a 8F35 transmission may exhibit an illuminated malfunction indicator lamp (MIL) with diagnostic trouble code (DTC) P0420 stored in the powertrain control module (PCM). This may be due to the catalytic converter. To correct this condition, follow the Service Procedure to replace the catalytic converter.","document":{"url":"https://static.nhtsa.gov/odi/tsbs/2023/MC-10241542-0001.pdf","alternate_url":"https://static.nhtsa.gov/odi/tsbs/2023/MC-10241542-9999.pdf","confirmed":false},"url":"https://open.wenmarpro.com/bulletins/10241542"},{"nhtsa_id":10200984,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2021-09-04","date":"2021-08-03","document_id":"SSM 49996","mfr_campaign":null,"component":"ENGINE AND ENGINE COOLING","summary":"Some 2021 Bronco Sport vehicles equipped with a 1.5L EcoBoost engine may exhibit a no crank/no start start condition with an illuminated malfunction indicator lamp (MIL) and one or more of the following diagnostic trouble codes (DTC): P093B, P2282, P0420, P062B, P21D1, P21D0, P21CF, P0710, and/or P0712. This may be due to a damaged wiring harness at the transmission cover. If damage is found, repair as necessary. Refer to Wiring Diagram Cell 005.","document":{"url":"https://static.nhtsa.gov/odi/tsbs/2021/MC-10200984-0001.pdf","alternate_url":"https://static.nhtsa.gov/odi/tsbs/2021/MC-10200984-9999.pdf","confirmed":false},"url":"https://open.wenmarpro.com/bulletins/10200984"}],"url":"https://open.wenmarpro.com/makes/ford/bronco-sport/2021/bulletins?code=P0420"},"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/bronco-sport/2021/codes/P0420","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."]}