{"vehicle":{"id":"2022_ram_2500","year":2022,"make":"Ram","model":"2500"},"code":"P026B","generic":true,"description":null,"bulletins":{"as_of":"2026-10-19","count":3,"bulletins":[{"nhtsa_id":10231776,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2023-02-13","date":"2023-01-12","document_id":"18-005-23","mfr_campaign":null,"component":"FUEL SYSTEM, GASOLINE; ELECTRONIC STABILITY CONTROL:AUTOMATIC (ASC); FUEL SYSTEM, DIESEL; ELECTRICAL SYSTEM; EXTERIOR LIGHTING","summary":"Flash: Powertrain Control Module (PCM) Updates Customers may experience a Malfunction Indicator Lamp (MIL) illumination. Upon further investigation the technician may find that one or more of the following Diagnostic Trouble Codes (DTCs) have been set: **P0299 - 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 Customers may also experience the following: **Service Exhaust System message in the Electronic Vehicle Information Center (EVIC) with no MIL.** 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. This bulletin involves reprogramming the Engine Control Module/Powertrain Control Module (ECM/PCM) with the latest available software.","document":{"url":"https://static.nhtsa.gov/odi/tsbs/2023/MC-10231776-0001.pdf","alternate_url":"https://static.nhtsa.gov/odi/tsbs/2023/MC-10231776-9999.pdf","confirmed":false},"url":"https://open.wenmarpro.com/bulletins/10231776"},{"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,"component":"POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE (TCM/PCM/TECM); ELECTRICAL SYSTEM; FUEL SYSTEM, DIESEL","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"},{"nhtsa_id":10221398,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2022-09-26","date":"2022-06-02","document_id":"S2218000010","mfr_campaign":null,"component":"ENGINE AND ENGINE COOLING","summary":"Malfunction Indicator Lamp (MIL) Illumination, Diagnostic Trouble Code (DTC) P026B ? Injection Timing Performance, Set.","document":{"url":"https://static.nhtsa.gov/odi/tsbs/2022/MC-10221398-0001.pdf","alternate_url":"https://static.nhtsa.gov/odi/tsbs/2022/MC-10221398-9999.pdf","confirmed":false},"url":"https://open.wenmarpro.com/bulletins/10221398"}],"url":"https://open.wenmarpro.com/makes/ram/2500/2022/bulletins?code=P026B"},"related":{"components":[],"bulletins":[],"recalls":{"may_apply":true,"recalls":[],"lookup":{"nhtsa":"https://www.nhtsa.gov/recalls","tc":"https://wwwapps.tc.gc.ca/Saf-Sec-Sur/7/VRDB-BDRV/search-recherche/menu.aspx?lang=eng","maker":null}}},"url":"https://open.wenmarpro.com/makes/ram/2500/2022/codes/P026B","note":"The bulletins listed name this code in NHTSA's summary, or are about the same components. A bulletin or a recall listed here may apply to the model year. None of it is a diagnosis.","attribution":["Contains information licensed under the Open Government Licence – Canada."]}