{"nhtsa_id":11022175,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2025-08-27","date":"2025-08-23","document_id":"18-081-25","mfr_campaign":null,"replaces":null,"component":"ELECTRICAL SYSTEM","mfr_system":null,"summary":"Flash: Powertrain Control Module (PCM) Updates **Customers must experience a Malfunction Indicator Lamp (MIL) illumination and the vehicle must exhibit/set one or more of the following Diagnostic Trouble Codes (DTCs): ● P245D-00 - EGR Cooler Bypass Control Circuit High. ● P02E3-00 - Diesel Intake Air Flow Control Circuit High. ● P0490-00 - EGR Control Circuit High. ● P229F-00 - Aftertreatment NOX Sensor Circuit Performance - Bank 1 Sensor 2. ● P0299-00 - Turbocharger Underboost. ● P242F-00 - Diesel Particulate Filter Restriction - Ash Accumulation. ● P0128-00 - Thermostat Rationality. ● P0234-00 - Turbocharger Overboost Condition.** Customers may also comment on one or more of the following: ● **Engine speed unstable when vehicle is stationary, not in gear and running on high speed governor (max engine speed).** ● Longer crank time than normal. ● Transmission overheat conditions with a message displayed in the Instrument Panel Cluster (IPC) stating \"Transmission oil temperature is too hot\" This bulletin involves reprogramming the Engine Control Module (ECM/PCM) with the latest available software.","document":{"url":"https://static.nhtsa.gov/odi/tsbs/2025/MC-11022175-0001.pdf","alternate_url":"https://static.nhtsa.gov/odi/tsbs/2025/MC-11022175-9999.pdf","confirmed":false},"url":"https://open.wenmarpro.com/bulletins/11022175","components":[{"id":"electrical","name":"Electrical system","parent":null}],"codes":["P0128","P0234","P0299","P02E3","P0490","P229F","P242F","P245D"],"topics":[],"vehicles":[{"make":"RAM","model":"2500","year_from":2023,"year_to":2023,"match":"exact","vehicle_ids":["2023_ram_2500"]}],"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":[]}