{"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,"replaces":null,"component":"UNKNOWN OR OTHER","mfr_system":null,"summary":"SUBJECT REGARDING MALFUNCTION INDICATOR LIGHT ON WITH DTC P1491.*YD","document":null,"url":"https://open.wenmarpro.com/bulletins/629483","components":[],"codes":["P1491"],"topics":[],"vehicles":[{"make":"NISSAN","model":"FRONTIER","year_from":2002,"year_to":2002,"match":"exact","vehicle_ids":["2002_nissan_frontier"]},{"make":"NISSAN","model":"XTERRA","year_from":2002,"year_to":2002,"match":"exact","vehicle_ids":["2002_nissan_xterra"]}],"as_of":"2026-10-19","note":"A bulletin is a manufacturer's communication to its dealers, as NHTSA indexes it. The summary is NHTSA's. The document is the manufacturer's: read it at NHTSA. A bulletin is not a recall, and listing a model year does not mean every vehicle of it is concerned.","attribution":[]}