{"nhtsa_id":10187154,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2021-02-16","date":"2021-01-22","document_id":"TSB210013-012220","mfr_campaign":null,"replaces":null,"component":"FUEL SYSTEM, GASOLINE; FUEL SYSTEM, DIESEL","mfr_system":null,"summary":"This Technical Service Bulletin describes the verification and resolution of miswiring of the diesel exhaust fluid pump wiring harness. Harness is mis-wired such that the DEF pump return input at the controller is receiving continuous 24 VDC from an erroneous wire.","document":{"url":"https://static.nhtsa.gov/odi/tsbs/2021/MC-10187154-0001.pdf","alternate_url":"https://static.nhtsa.gov/odi/tsbs/2021/MC-10187154-9999.pdf","confirmed":false},"url":"https://open.wenmarpro.com/bulletins/10187154","components":[{"id":"fuel-system","name":"Fuel system","parent":null}],"codes":[],"topics":[],"vehicles":[{"make":"CUMMINS","model":"C","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":[]}