{"nhtsa_id":620486,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2001-08-10","date":"2000-01-01","document_id":"14741","mfr_campaign":null,"replaces":null,"component":"UNKNOWN OR OTHER","mfr_system":null,"summary":"MALFUNCTION INDICATOR LAMP ON WITH DIAGNOSTIC TROUBLE CODE P1633 AND / OR P1639 WITH NO DRIVEABILITY CONCERN PRESENT. *TT","document":null,"url":"https://open.wenmarpro.com/bulletins/620486","components":[],"codes":["P1633","P1639"],"topics":[],"vehicles":[{"make":"FORD","model":"EXPLORER","year_from":2002,"year_to":2002,"match":"exact","vehicle_ids":["2002_ford_explorer"]},{"make":"MERCURY","model":"MOUNTAINEER","year_from":2002,"year_to":2002,"match":"exact","vehicle_ids":["2002_mercury_mountaineer"]}],"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":[]}