Flash: Powertrain Control Module (PCM) Updates Customers must experience a Malfunction Indicator Lamp...
Ram technical service bulletin 18-081-25 for 2023 Ram 2500.
- Bulletin number
- 18-081-25
- Component
- Electrical system
- 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.
Owners of these vehicles have filed 10 complaints in the electrical category.
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