{"vehicle":{"id":"2002_nissan_frontier","year":2002,"make":"Nissan","model":"Frontier"},"code":"P1491","generic":false,"description":null,"bulletins":{"as_of":"2026-10-19","count":3,"bulletins":[{"nhtsa_id":10000137,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2003-02-13","date":"2002-09-30","document_id":"02017B","mfr_campaign":null,"component":"INTERIOR LIGHTING","summary":"MALFUNCTION INDICATOR LAMP (MIL) ON WITH DIAGNOSTIC TROUBLE CODE (DTC) P1491. *TT","document":null,"url":"https://open.wenmarpro.com/bulletins/10000137"},{"nhtsa_id":635792,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2002-10-31","date":"2002-09-06","document_id":"NTB02017A","mfr_campaign":null,"component":"UNKNOWN OR OTHER","summary":"ON SOME VEHICLES, THE MALFUNCTION INDICATOR LAMP IS ON WITH DIAGNOSTIC TROUBLE CODE P1491 SET. *TT","document":null,"url":"https://open.wenmarpro.com/bulletins/635792"},{"nhtsa_id":629483,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2002-04-02","date":"2002-02-08","document_id":"NTB02017","mfr_campaign":null,"component":"UNKNOWN OR OTHER","summary":"SUBJECT REGARDING MALFUNCTION INDICATOR LIGHT ON WITH DTC P1491.*YD","document":null,"url":"https://open.wenmarpro.com/bulletins/629483"}],"url":"https://open.wenmarpro.com/makes/nissan/frontier/2002/bulletins?code=P1491"},"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/2002/codes/P1491","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."]}