{"nhtsa_id":615506,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2001-01-17","date":"1998-12-01","document_id":"12249","mfr_campaign":null,"replaces":null,"component":"UNKNOWN OR OTHER","mfr_system":null,"summary":"SOME VEHICLES MAY EXHIBIT A MALFUNCTION INDICATOR LAMP ON CONCERN WITH DIAGNOSTIC TROUBLE CODE P1633. *TT","document":null,"url":"https://open.wenmarpro.com/bulletins/615506","components":[],"codes":["P1633"],"topics":[],"vehicles":[{"make":"FORD","model":"ZX2 (ESCORT)","year_from":1999,"year_to":1999,"match":"base","vehicle_ids":["1999_ford_zx2"]}],"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":[]}