{"nhtsa_id":11003225,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2024-07-04","date":"2024-06-13","document_id":"09-028-24a","mfr_campaign":null,"replaces":null,"component":"UNKNOWN OR OTHER; ELECTRICAL SYSTEM","mfr_system":"Warning Message","summary":"Some customers may experience a warning message for the approaching vehicle audible system (AVAS) right after the ignition is turned on (POWER ON) while a loud noise, such as a horn, occurs close to the vehicle. Upon inspection, DTC B1A03:2B [ISB_AMP] (AVAS device circuit malfunction) is stored in memory. This may be caused by an internal initial diagnosis in the notification and warning amplifier detecting a false malfunction under this particular situation. To eliminate this concern, the control software of the notification and warning amplifier has been modified.","document":{"url":"https://static.nhtsa.gov/odi/tsbs/2024/MC-11003225-0001.pdf","alternate_url":"https://static.nhtsa.gov/odi/tsbs/2024/MC-11003225-9999.pdf","confirmed":false},"url":"https://open.wenmarpro.com/bulletins/11003225","components":[{"id":"electrical","name":"Electrical system","parent":null}],"codes":["B1A03"],"topics":[],"vehicles":[{"make":"MAZDA","model":"CX-70","year_from":2025,"year_to":2025,"match":"exact","vehicle_ids":["2025_mazda_cx-70"]},{"make":"MAZDA","model":"CX-90","year_from":2024,"year_to":2024,"match":"exact","vehicle_ids":["2024_mazda_cx-90"]}],"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":[]}