{"nhtsa_id":613858,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2000-09-20","date":"2000-06-12","document_id":"00122","mfr_campaign":null,"replaces":null,"component":"UNKNOWN OR OTHER","mfr_system":null,"summary":"INOPERATIVE OR INACCURATE SPEEDOMETER, 4X4 LAMP ILLUMINATED, AND / OR DIAGNOSTIC TROUBLE CODES (DTCS) P1635 OR P1639 PRESENT AFTER A POWERTRAIN CONTROL MODULE (PCM) OR INSTRUMENT CLUSTER REPLACEMENT. *TT","document":null,"url":"https://open.wenmarpro.com/bulletins/613858","components":[],"codes":["P1635","P1639"],"topics":[],"vehicles":[{"make":"FORD","model":"ECONOLINE","year_from":2000,"year_to":2000,"match":null,"vehicle_ids":[]}],"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":[]}