{"nhtsa_id":601553,"type":"service_bulletin","type_name":"Service bulletin","date_added":"1998-08-07","date":"1998-04-01","document_id":"985478","mfr_campaign":null,"replaces":null,"component":"ELECTRICAL SYSTEM:IGNITION:MODULE","mfr_system":null,"summary":"CONCERNS ABOUT INSTRUMENTATION CONTROL UNIT (ICU) IS SHORTING OUT AT THE RIGHT-HAND CIRCUIT BOARD (BLUE CONNECTOR SIDE). *YC","document":null,"url":"https://open.wenmarpro.com/bulletins/601553","components":[{"id":"electrical","name":"Electrical system","parent":null},{"id":"ignition","name":"Ignition","parent":"electrical"}],"codes":[],"topics":[],"vehicles":[{"make":"FREIGHTLINER","model":"CENTURY","year_from":null,"year_to":null,"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":[]}