{"vehicle":{"id":"2006_nissan_frontier","year":2006,"make":"Nissan","model":"Frontier"},"code":"P0420","generic":true,"description":null,"bulletins":{"as_of":"2026-10-19","count":1,"bulletins":[{"nhtsa_id":10033344,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2010-08-12","date":"2010-03-19","document_id":"NTB-10-045","mfr_campaign":null,"component":"ENGINE AND ENGINE COOLING:ENGINE; ENGINE AND ENGINE COOLING:EXHAUST SYSTEM:MANIFOLD/HEADER/MUFFLER/TAIL PIPE; ELECTRICAL SYSTEM:SOFTWARE","summary":"NISSAN: DTC P0420 (TW CATALYST SYS-BI) STORED IN THE ECM. CONFIRM THIS BULLETIN APPLIES-CHECK THE CURRENT ECM PART NUMBER; COMPARE YOUR CURRENT ECM PART NUMBER TO CHART A. REPLACE THE EXHAUST MANIFOLD CATALYST; REPROGRAM THE ECM. *PE","document":null,"url":"https://open.wenmarpro.com/bulletins/10033344"}],"url":"https://open.wenmarpro.com/makes/nissan/frontier/2006/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/nissan/frontier/2006/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."]}