{"nhtsa_id":11022004,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2025-08-21","date":"2025-08-15","document_id":"08-252-25 REV. A","mfr_campaign":null,"replaces":null,"component":"ELECTRICAL SYSTEM","mfr_system":null,"summary":"Flash: Radio Frequency Hub Module (RFHM) Updates Technicians may experience the following Diagnostic Trouble Code (DTC): ● B22A9-00 - ECU Internal Performance. NOTE: This DTC will be Active and there are no customer symptoms with this DTC This bulletin involves inspecting and possibly updating the RFHM with the latest available software and also possibly replacing the RFHM","document":{"url":"https://static.nhtsa.gov/odi/tsbs/2025/MC-11022004-0001.pdf","alternate_url":"https://static.nhtsa.gov/odi/tsbs/2025/MC-11022004-9999.pdf","confirmed":false},"url":"https://open.wenmarpro.com/bulletins/11022004","components":[{"id":"electrical","name":"Electrical system","parent":null}],"codes":["B22A9"],"topics":[],"vehicles":[{"make":"RAM","model":"2500","year_from":2025,"year_to":2025,"match":"exact","vehicle_ids":["2025_ram_2500"]}],"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":[]}