{"nhtsa_id":634519,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2002-10-03","date":"2002-07-01","document_id":"020847003","mfr_campaign":null,"replaces":null,"component":"ELECTRICAL SYSTEM:IGNITION:MODULE","mfr_system":null,"summary":"THIS BULLETIN IS BEING ISSUED TO REVISE DIAGNOSTIC TROUBLE CODES B1652, B1656 AND B1658. *TT","document":null,"url":"https://open.wenmarpro.com/bulletins/634519","components":[{"id":"electrical","name":"Electrical system","parent":null},{"id":"ignition","name":"Ignition","parent":"electrical"}],"codes":["B1652","B1656","B1658"],"topics":[],"vehicles":[{"make":"BUICK","model":"PARK AVENUE","year_from":2000,"year_to":2002,"match":"exact","vehicle_ids":["2000_buick_park-avenue","2001_buick_park-avenue","2002_buick_park-avenue"]}],"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":[]}