{"nhtsa_id":10189827,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2021-04-05","date":"2021-03-12","document_id":"09-011-21-3789","mfr_campaign":null,"replaces":null,"component":"ELECTRICAL SYSTEM","mfr_system":null,"summary":"Some vehicles (equipped with the Electrical supply unit (ESU) BCKA-67-5Z0B) may exhibit that DTC B2002:49 [BODY CONTROL MODULE (BCM) - Electrical supply unit (ESU) internal malfunction (No warning/indicator light ON)] will not clear with the Mazda Modular Diagnostic System (M-MDS). This is caused by improper control software of the ESU. To eliminate this concern, the control software of the ESU has been modified.","document":{"url":"https://static.nhtsa.gov/odi/tsbs/2021/MC-10189827-0001.pdf","alternate_url":"https://static.nhtsa.gov/odi/tsbs/2021/MC-10189827-9999.pdf","confirmed":false},"url":"https://open.wenmarpro.com/bulletins/10189827","components":[{"id":"electrical","name":"Electrical system","parent":null}],"codes":["B2002"],"topics":[],"vehicles":[{"make":"MAZDA","model":"CX-30","year_from":2020,"year_to":2020,"match":"exact","vehicle_ids":["2020_mazda_cx-30"]},{"make":"MAZDA","model":"MAZDA3","year_from":2019,"year_to":2020,"match":"exact","vehicle_ids":["2019_mazda_mazda3","2020_mazda_mazda3"]}],"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":[]}