{"vehicle":{"id":"2019_subaru_impreza","year":2019,"make":"Subaru","model":"Impreza"},"code":"U0284","generic":true,"description":null,"bulletins":{"as_of":"2026-10-19","count":2,"bulletins":[{"nhtsa_id":10150933,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2018-12-10","date":"2018-10-09","document_id":"07-140-18","mfr_campaign":null,"component":"ELECTRICAL SYSTEM","summary":"This bulletin announces an additional troubleshooting step to follow when diagnosing a DTC U0284: ?LOST COMMUNICATIONWITH ACTIVE GRILLE SHUTTER MODULE ?A?. Water intrusion into the harness wiring leading to connector B63 for the Active Grille Shutter (AGS) may lead to corrosion of the harness wiring and / or connector terminals and result in a communication loss with the ECM.","document":{"url":"https://static.nhtsa.gov/odi/tsbs/2018/MC-10150933-9999.pdf","alternate_url":"https://static.nhtsa.gov/odi/tsbs/2018/MC-10150933-0001.pdf","confirmed":false},"url":"https://open.wenmarpro.com/bulletins/10150933"},{"nhtsa_id":10150908,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2018-12-10","date":"2018-10-09","document_id":"07-140-18","mfr_campaign":null,"component":"ELECTRICAL SYSTEM","summary":"This bulletin announces an additional troubleshooting step to follow when diagnosing a DTC U0284: ?LOST COMMUNICATIONWITH ACTIVE GRILLE SHUTTER MODULE ?A?. Water intrusion into the harness wiring leading to connector B63 for the Active Grille Shutter (AGS) may lead to corrosion of the harness wiring and/or connector terminals and result in a communication loss with the ECM.","document":{"url":"https://static.nhtsa.gov/odi/tsbs/2018/MC-10150908-9999.pdf","alternate_url":"https://static.nhtsa.gov/odi/tsbs/2018/MC-10150908-0001.pdf","confirmed":false},"url":"https://open.wenmarpro.com/bulletins/10150908"}],"url":"https://open.wenmarpro.com/makes/subaru/impreza/2019/bulletins?code=U0284"},"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/subaru/impreza/2019/codes/U0284","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."]}