{"nhtsa_id":10183320,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2020-12-01","date":"2020-10-13","document_id":"SS1034491","mfr_campaign":null,"replaces":null,"component":"ENGINE AND ENGINE COOLING","mfr_system":null,"summary":"Service Solution for False DEF Fault Codes on chassis with Cummins engines. Symptoms are various active and inactive fault codes for DEF Quality or DEF level. The issue could be caused by the coolant hoses swapped at the bulkhead fittings, thru the frame rail causing the coolant flow inside the header assembly to be reversed.","document":{"url":"https://static.nhtsa.gov/odi/tsbs/2020/MC-10183320-0001.pdf","alternate_url":"https://static.nhtsa.gov/odi/tsbs/2020/MC-10183320-9999.pdf","confirmed":false},"url":"https://open.wenmarpro.com/bulletins/10183320","components":[{"id":"engine","name":"Engine","parent":null}],"codes":[],"topics":[],"vehicles":[{"make":"FCCC","model":"S2C","year_from":2020,"year_to":2020,"match":null,"vehicle_ids":[]},{"make":"FCCC","model":"S2RV","year_from":2017,"year_to":2020,"match":null,"vehicle_ids":[]},{"make":"FCCC","model":"XBP","year_from":2014,"year_to":2020,"match":null,"vehicle_ids":[]},{"make":"FCCC","model":"XBR","year_from":2014,"year_to":2020,"match":null,"vehicle_ids":[]},{"make":"FCCC","model":"XBS","year_from":2014,"year_to":2020,"match":null,"vehicle_ids":[]},{"make":"FCCC","model":"XCL","year_from":2014,"year_to":2020,"match":null,"vehicle_ids":[]},{"make":"FCCC","model":"XCM","year_from":2014,"year_to":2020,"match":null,"vehicle_ids":[]},{"make":"FCCC","model":"XCP","year_from":2014,"year_to":2020,"match":null,"vehicle_ids":[]},{"make":"FCCC","model":"XCR","year_from":2014,"year_to":2020,"match":null,"vehicle_ids":[]},{"make":"FCCC","model":"XCS","year_from":2014,"year_to":2020,"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":[]}