{"nhtsa_id":11031461,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2026-04-22","date":"2026-04-14","document_id":"9100799","mfr_campaign":null,"replaces":null,"component":"ELECTRICAL SYSTEM","mfr_system":null,"summary":"WARNING: Shorting the 48V output stud to the 12V output stud can cause immediate and irreversible damage to the power pack unit. Always use insulated tools and protective stud covers when performing service operations. NOTE: A loose or high resistance ground connection may result in abnormal voltage behavior and can increase the risk of electrical component damage. Always verify ground integrity before system power up. For P0AFA repair: Please follow the Service library steps 1 through 7 without fail. Only replace PPU or MGU after verifying the final step of the procedure.","document":{"url":"https://static.nhtsa.gov/odi/tsbs/2026/MC-11031461-0001.pdf","alternate_url":"https://static.nhtsa.gov/odi/tsbs/2026/MC-11031461-9999.pdf","confirmed":false},"url":"https://open.wenmarpro.com/bulletins/11031461","components":[{"id":"electrical","name":"Electrical system","parent":null}],"codes":["P0AFA"],"topics":[],"vehicles":[{"make":"RAM","model":"1500","year_from":2019,"year_to":2026,"match":"exact","vehicle_ids":["2019_ram_1500","2020_ram_1500","2021_ram_1500","2022_ram_1500","2023_ram_1500","2024_ram_1500","2025_ram_1500","2026_ram_1500"]}],"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":[]}