{"nhtsa_id":11020219,"type":"service_campaign","type_name":"Service campaign","date_added":"2025-07-07","date":"2025-06-05","document_id":"C7122","mfr_campaign":"C7122","replaces":null,"component":"ENGINE","mfr_system":null,"summary":"This Warranty Field Campaign is being issued to address a potential concern relating the FC3386 (Specific Humidity Sensor - Data Erratic, Intermittent, or Incorrect) on certain MY2021, L9N CM2380 L142B engines. This Campaign authorizes certified service locations to recalibrate the engine's control module (ECM).","document":{"url":"https://static.nhtsa.gov/odi/tsbs/2025/MC-11020219-0001.pdf","alternate_url":"https://static.nhtsa.gov/odi/tsbs/2025/MC-11020219-9999.pdf","confirmed":false},"url":"https://open.wenmarpro.com/bulletins/11020219","components":[{"id":"engine","name":"Engine","parent":null}],"codes":[],"topics":[],"vehicles":[{"make":"CUMMINS","model":"L9N","year_from":null,"year_to":null,"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":[]}