{"nhtsa_id":10004951,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2004-01-21","date":"2003-10-01","document_id":"17310","mfr_campaign":null,"replaces":null,"component":"ELECTRICAL SYSTEM","mfr_system":null,"summary":"MALFUNCTION INDICATOR LAMP (MIL) ON WITH DIAGNOSTIC TROUBLE CODES (DTCS) P0420 (CATALYST SYSTEM EFFICIENCY BELOW THRESHOLD - BANK 1) AND/OR P0430 (CATALYST SYSTEM EFFICIENCY BELOW THRESHOLD - BANK 2). *TT","document":null,"url":"https://open.wenmarpro.com/bulletins/10004951","components":[{"id":"electrical","name":"Electrical system","parent":null}],"codes":["P0420","P0430"],"topics":[],"vehicles":[{"make":"FORD","model":"CROWN VICTORIA","year_from":1997,"year_to":1997,"match":"exact","vehicle_ids":["1997_ford_crown-victoria"]},{"make":"LINCOLN","model":"TOWN CAR","year_from":1997,"year_to":1997,"match":"exact","vehicle_ids":["1997_lincoln_town-car"]},{"make":"MERCURY","model":"GRAND MARQUIS","year_from":1997,"year_to":1997,"match":"exact","vehicle_ids":["1997_mercury_grand-marquis"]}],"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":[]}