{"vehicle":{"id":"1999_nissan_frontier","year":1999,"make":"Nissan","model":"Frontier"},"code":"P0400","generic":true,"description":null,"bulletins":{"as_of":"2026-10-19","count":2,"bulletins":[{"nhtsa_id":10015983,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2005-08-18","date":"2005-05-25","document_id":"05040","mfr_campaign":null,"component":"ENGINE AND ENGINE COOLING","summary":"MIL WITH DTC P0400, P0402, ROUGH IDLE, DRIVABILITY INCIDENTS, DIFFICULTY SETTING EGR SRT. *SC","document":null,"url":"https://open.wenmarpro.com/bulletins/10015983"},{"nhtsa_id":10015857,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2005-08-16","date":"2005-06-15","document_id":"05040A","mfr_campaign":null,"component":"ENGINE AND ENGINE COOLING","summary":"1998-2000 FRONTIER & XTERRA WITH KA24 ENGINE; MIL WITH DTC P0400, P0402, ROUGH IDLE, DRIVABILITY INCIDENTS, DIFFICULTY PASSING I/M TEST FOR NO X UPDATE *SC","document":null,"url":"https://open.wenmarpro.com/bulletins/10015857"}],"url":"https://open.wenmarpro.com/makes/nissan/frontier/1999/bulletins?code=P0400"},"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/nissan/frontier/1999/codes/P0400","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."]}