{"nhtsa_id":629674,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2002-04-04","date":"2002-01-09","document_id":"090102","mfr_campaign":null,"replaces":null,"component":"ELECTRICAL SYSTEM:IGNITION:MODULE","mfr_system":null,"summary":"CONCERNS WITH DIAGNOSTIC CODES P0420, CONVERTER EFFICIENCY, P0121 TPS PERFORMANCE AND P0133 AND P0153, O2 SENSOR SLOW RESPONSE. *TT","document":null,"url":"https://open.wenmarpro.com/bulletins/629674","components":[{"id":"electrical","name":"Electrical system","parent":null},{"id":"ignition","name":"Ignition","parent":"electrical"}],"codes":["P0121","P0133","P0153","P0420"],"topics":[],"vehicles":[{"make":"CADILLAC","model":"DEVILLE","year_from":2002,"year_to":2002,"match":"exact","vehicle_ids":["2002_cadillac_deville"]},{"make":"CADILLAC","model":"ELDORADO","year_from":2002,"year_to":2002,"match":"exact","vehicle_ids":["2002_cadillac_eldorado"]},{"make":"CADILLAC","model":"SEVILLE","year_from":2002,"year_to":2002,"match":"exact","vehicle_ids":["2002_cadillac_seville"]}],"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":[]}