{"nhtsa_id":10144819,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2018-09-24","date":"2015-02-06","document_id":"18-012-15","mfr_campaign":null,"replaces":null,"component":"FUEL SYSTEM, GASOLINE; ENGINE","mfr_system":null,"summary":"Flash: 6.7L Diagnostic And System Improvements This bulletin involves reprogramming the Engine Control Module (ECM) with the latest available software. Several software improvements are available for vehicles equipped with a Cummins 6.7L turbo diesel. Improvements To Prevent Or Reduce Malfunction Indicator Lamp (MIL) Illumination When No Defect Is Present For The Following Diagnostic Trouble Codes (DTCs): ? U3017 - Control Module Timer/Clock Performance. ? U1421 - Implausible Ignition Key Off Time Received. ? P2281 - Air Leak Between MAF And Throttle Body. Other Software Improvements: ? Fuel Filter Minder calibration changes. ? wiTECH Fuel Pressure Override and Fuel System Run Up test improvements. ? EGR system improvement to help prevent freeze up. ? Diesel Exhaust Fluid (DEF) system enhancement during stationary regeneration.","document":{"url":"https://static.nhtsa.gov/odi/tsbs/2015/MC-10144819-9999.pdf","alternate_url":"https://static.nhtsa.gov/odi/tsbs/2015/MC-10144819-0001.pdf","confirmed":false},"url":"https://open.wenmarpro.com/bulletins/10144819","components":[{"id":"engine","name":"Engine","parent":null},{"id":"fuel-system","name":"Fuel system","parent":null}],"codes":["P2281","U1421","U3017"],"topics":[],"vehicles":[{"make":"RAM","model":"3500","year_from":2015,"year_to":2015,"match":"exact","vehicle_ids":["2015_ram_3500"]},{"make":"RAM","model":"4500","year_from":2015,"year_to":2015,"match":"exact","vehicle_ids":["2015_ram_4500"]}],"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":[]}