{"nhtsa_id":601788,"type":"service_bulletin","type_name":"Service bulletin","date_added":"1998-08-24","date":"1998-05-01","document_id":"TSI 04","mfr_campaign":null,"replaces":null,"component":"ELECTRICAL SYSTEM","mfr_system":null,"summary":"SOME COACHES BUILT BETWEEN JANUARY 1, 1998 AND MAY 23, 1998 MAY EXPERIENCE A CLICKING NOISE COMING FROM THE BI-DIRECTIONAL RELAY DELAY. *YC","document":null,"url":"https://open.wenmarpro.com/bulletins/601788","components":[{"id":"electrical","name":"Electrical system","parent":null}],"codes":[],"topics":[],"vehicles":[{"make":"MONACO COACH","model":"DIPLOMAT","year_from":1998,"year_to":1998,"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":[]}