{"nhtsa_id":616459,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2001-02-27","date":"1998-09-04","document_id":"9110","mfr_campaign":null,"replaces":null,"component":"ELECTRICAL SYSTEM:IGNITION:MODULE","mfr_system":null,"summary":"TECHNICAL INFORMATION PERTAINING TO THE PORSCHE COMMUNICATION MANAGEMENT (PCM) CONTROL UNIT AND CD-ROM EXCHANGE PROGRAM. *TT","document":null,"url":"https://open.wenmarpro.com/bulletins/616459","components":[{"id":"electrical","name":"Electrical system","parent":null},{"id":"ignition","name":"Ignition","parent":"electrical"}],"codes":[],"topics":[],"vehicles":[{"make":"PORSCHE","model":"911 CARRERA","year_from":1999,"year_to":1999,"match":"base","vehicle_ids":["1999_porsche_911"]}],"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":[]}