{"nhtsa_id":635348,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2002-10-22","date":"2004-08-01","document_id":"54156","mfr_campaign":null,"replaces":"54156","component":"ELECTRICAL SYSTEM","mfr_system":null,"summary":"GENERAL INFORMATION ON ADDING CIRCUITS TO MULTIPLEXED ELECTRICAL SYSTEM. *TT THIS BULLETIN REPLACES PREVIOIS VERSION DATED JULY 2002 ADDING FEATURES TO THE MULTIPLEX ELECTRICAL SYSTEM. T","document":null,"url":"https://open.wenmarpro.com/bulletins/635348","components":[{"id":"electrical","name":"Electrical system","parent":null}],"codes":[],"topics":[],"vehicles":[{"make":"FREIGHTLINER","model":"BUSINESS CLASS","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":[]}