{"nhtsa_id":52583,"type":"service_bulletin","type_name":"Service bulletin","date_added":"1997-08-21","date":"1997-03-01","document_id":"776509","mfr_campaign":null,"replaces":null,"component":"ELECTRICAL SYSTEM:IGNITION:MODULE","mfr_system":null,"summary":"DTC P0400 SET (INSTALL FLASH CALIBRATION). *TW","document":null,"url":"https://open.wenmarpro.com/bulletins/52583","components":[{"id":"electrical","name":"Electrical system","parent":null},{"id":"ignition","name":"Ignition","parent":"electrical"}],"codes":["P0400"],"topics":[],"vehicles":[{"make":"CADILLAC","model":"FLEETWOOD","year_from":1996,"year_to":1996,"match":"exact","vehicle_ids":["1996_cadillac_fleetwood"]}],"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":[]}