{"nhtsa_id":630454,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2002-04-17","date":"2001-11-01","document_id":"15432","mfr_campaign":null,"replaces":null,"component":"ELECTRICAL SYSTEM:IGNITION:MODULE","mfr_system":null,"summary":"SOME VEHICLES NOT EQUIPPED WITH SIDE AIR BAGS MAY EXHIBIT DIAGNOSTIC TROUBLE CODE B1998 (PASSENGER SIDE AIR BAG CIRCUIT RESISTANCE HIGH) IN THE RESTRAINTS CONTROL MODULE. *TT","document":null,"url":"https://open.wenmarpro.com/bulletins/630454","components":[{"id":"electrical","name":"Electrical system","parent":null},{"id":"ignition","name":"Ignition","parent":"electrical"}],"codes":["B1998"],"topics":[],"vehicles":[{"make":"FORD","model":"EXPEDITION","year_from":2000,"year_to":2002,"match":"exact","vehicle_ids":["2000_ford_expedition","2001_ford_expedition","2002_ford_expedition"]},{"make":"LINCOLN","model":"NAVIGATOR","year_from":2000,"year_to":2002,"match":"exact","vehicle_ids":["2000_lincoln_navigator","2001_lincoln_navigator","2002_lincoln_navigator"]}],"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":[]}