{"nhtsa_id":10227754,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2022-12-12","date":"2022-10-25","document_id":"1809422REVB","mfr_campaign":null,"replaces":null,"component":"POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE (TCM/PCM/TECM); ELECTRICAL SYSTEM; FUEL SYSTEM, DIESEL","mfr_system":null,"summary":"Flash: Powertrain Control Module (PCM) Updates This bulletin involves reprogramming the Engine Control Module/Powertrain Control Module (ECM/PCM) with the latest available software. Customers may experience a Malfunction Indicator Lamp (MIL) illumination. Upon further investigation the technician may find that one or more of the following DTCs have been set: P0299-00 - Turbocharger Underboost. P026B-00 - Injection Timing Performance. P061B-00 - Internal Control Module Torque Calculation Performance. P1451-00 - Diesel Particulate Filter System Performance. P0755-00 - Shift Solenoid \"B\"(DG7 Trans Sales Code). P0765-00 - Shift Solenoid \"D\"(DG7 Only). P0401-00 - EGR System Performance. The following improvements are also included in this update:Improvements to cold temperature engine rpm fluctuation. Reduce audible engine flare during upshifts(DG7 Only). Improvements to help prevent OD clutch premature wear (DG7 Only). 1-2-1 gear hunting on grades while operating under high loads in areas of low traction (e.g. rain, snow, ice or dirt)(DG7 Only) wiTECH Fuel System Run-Up Test routine Improvement. Idle stability Improvement. wiTECH PCM data improvements. wiTECH cylinder cut-out routine, improvement.","document":{"url":"https://static.nhtsa.gov/odi/tsbs/2022/MC-10227754-0001.pdf","alternate_url":"https://static.nhtsa.gov/odi/tsbs/2022/MC-10227754-9999.pdf","confirmed":false},"url":"https://open.wenmarpro.com/bulletins/10227754","components":[{"id":"electrical","name":"Electrical system","parent":null},{"id":"fuel-system","name":"Fuel system","parent":null},{"id":"powertrain","name":"Transmission and driveline","parent":null},{"id":"automatic-transmission","name":"Automatic transmission","parent":"powertrain"},{"id":"transmission-control-module","name":"Transmission control module","parent":"powertrain"}],"codes":["P026B","P0299","P0401","P061B","P0755","P0765","P1451"],"topics":[],"vehicles":[{"make":"RAM","model":"2500","year_from":2022,"year_to":2022,"match":"exact","vehicle_ids":["2022_ram_2500"]},{"make":"RAM","model":"3500","year_from":2022,"year_to":2022,"match":"exact","vehicle_ids":["2022_ram_3500"]}],"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":[]}