P0299 on the 2020 Ram 3500
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.
Nobody has written a description of this code yet.
| 09-003-26 | 2026-03-05. Service bulletin. Cummins 6.7L Air Filter Replacement DTC P0299 Customers must experience a Malfunction Indicator Lamp (MIL) illumination and the vehicle must SYMPTOM: exhibit/set the following Diagnostic Trouble Code (DTC): ● P0299-00 - Turbocharger Underboost. Customers may also comment on the following: ● Low power/acceleration or lag condition. This bulletin involves performing an Air Handling Performance Test (APT) and possibly replacing the air filter. |
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| 9100678 | 2025-11-05. Service bulletin. 1. General Parts Update The recommended air filter for 2019 Model Year (MY) and newer 6.7L Cummins equipped vehicles has been updated. New Part: 68645327AA (Non-Oiled Air Filter) Replaces: 53034051AA (Oiled Air Filter) - This part is superseded and should no longer be installed. The air filter for all other applications remains unchanged: Continue to use 68517554AA for: All 2018 MY and older 6.7L Cummins equipped vehicles. All 2019 MY and newer vehicles with non-6.7L engines. 2. Special Service Procedure for DTC P0299 Application: 2019-2024 MY HD Trucks with 6.7L Diesel (ETM/ETN) Condition: If DTC P0299 is active and the vehicle is equipped with the previous oiled air filter (PN# 53034051AA). Procedure: Replace the oiled air filter (53034051AA) with the new non-oiled filter (68645327AA). Service Catalog reflects these updated usages. |
| 1800824 | 2024-03-18. Service bulletin. Flash: Powertrain Control Module (PCM) Updates Customers may experience a Malfunction Indicator Lamp (MIL) illumination. Upon further investigation the technician may find one or more of the following Diagnostic Trouble Codes (DTCs) have been set: P0506-00 - Idle Control System RPM - Lower Than Expected.P0607-00 - ECU Internal Performance. P20E8-00 - Reductant Pressure Too Low. P0301-00 - Cylinder 1 Misfire. P0302-00 - Cylinder 2 Misfire. P0303-00 - Cylinder 3 Misfire. P0304-00 - Cylinder 4 Misfire. P0305-00 - Cylinder 5 Misfire. P0306-00 - Cylinder 6 Misfire. P0299-00 - Turbocharger Underboost. P1D73-00 - AGS Performance. P0626 - Generator Field Control Circuit High. P218F - Reductant No Flow Detected. P2002 - Diesel Particulate Filter Efficiency Below Threshold. P24A5 - EGR Cooler Bypass Bank 1 Control Stuck. P0191 - Fuel Rail Pressure Sensor Circuit Performance. P0461 - Fuel Level Sensor 1 Performance. P0401 - EGR System Performance. P20EE - SCR NOx Catalyst Efficiency Below Threshold - Bank 1. P061A - Level 2 Torque Performance. P061B - Internal Control Module Torque Calculation Performance. P061E - Internal Control Module Brake Signal Performance. P062C - ETC Level 2 MPH Performance. P0106 - Manifold Absolute Pressure Sensor Performance (In extreme cold ambient temperatures). P0116 - Engine Coolant Temperature Sensor Performance. P0420 - Catalyst System Efficiency Bank 1. P1507 - Crankcase Filter Restriction. P203F - Reductant Level Too Low. P226C - Turbocharger Boost Control ?A? Slow Response (In extreme cold ambient temperatures). P2579 - Turbocharger Speed Sensor Circuit. U0101 - Lost Communication with TCM. U02A3 - Lost of Communication with PM Sensor. U3017 - Control Module Timer/Clock Performance. Customers may also experience one or more of the following Power |
| S2018000007 | 2023-01-17. Service bulletin. Diagnostic Trouble Code (DTC) P0299 ? Turbocharger Underboost Additional Diagnostics |
| S2018000007 | 2023-01-17. Service bulletin. Diagnostic Trouble Code (DTC) P0299 ? Turbocharger Underboost Additional Diagnostics |
| 1810222REVA | 2023-01-09. Service bulletin. Flash: Powertrain Control Module (PCM) Updates This bulletin involves reprogramming the Engine Control Module/Powertrain ControlModule (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 moreof the following (DTCs) have been set: P0506 - Idle Control System RPM Lower Than Expected. P0299-00 - Turbocharger Underboost. P20EE-00 - NOx Catalyst Efficiency Below Threshold. P242F-00 - Diesel Particulate Filter Restriction - Ash Accumulation. P1451-00 - Diesel Particulate Filter System Performance. P2463-00 - Diesel Particulate Filter Restriction - Soot Accumulation Bank 1. P026B - Injection Timing Performance. P0607-00 - ECU Internal Performance. P20E8-00 - Reductant Pressure Too Low. P0301-00 - Cylinder 1 Misfire. P0302-00 - Cylinder 2 Misfire. P0303-00 - Cylinder 3 Misfire. P0304-00 - Cylinder 4 Misfire. P0305-00 - Cylinder 5 Misfire. P0306-00 - Cylinder 6 Misfire. P1C54-00 - SCR NOx Catalyst Missing. P2706-00 - MS Solenoid Circuit (68RFE Only). P1D73-00 - AGS Performance. P24A5-00 - EGR Cooler Bypass Bank 1 Control Stuck(Sales Code ETM). P0420-00 - Catalyst System Efficiency Below Threshold Bank 1(Sales Code ETM). P2002-00 - Diesel Particulate Filter Efficiency Below Threshold(Sales Code ETM). P0191-00 - Fuel Rail Pressure Sensor Circuit Performance(Sales Code ETM). P0461-00 - Fuel Level Sensor 1 Performance(Sales Code ETM). P0401-00 - EGR System Performance(Sales Code ETM). P208B-00 - Reductant Pump 1 Control Performance(Sales Code ETM). The customer may also notice one or more of the following: Idle Instability. Harsh downshift clunk during exhaust brake deceleration. Diesel Exhaust Fluid (DEF) gauge erratic when DEF level is low. Stall when putting in reverse in cold ambient temps. Engine stumble during engine warm up. Unstable idle when AC compressor cycles. Engine surge felt while driving(Sales Code ETM). Idle fluctuation. |
| 1810222REVA | 2022-10-31. Service bulletin. Flash: Powertrain Control Module (PCM) Updates This bulletin involves reprogramming the Engine Control Module/Powertrain ControlModule (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 moreof the following (DTCs) have been set: P0506 - Idle Control System RPM Lower Than Expected. P0299-00 - Turbocharger Underboost. P20EE-00 - NOx Catalyst Efficiency Below Threshold. P242F-00 - Diesel Particulate Filter Restriction - Ash Accumulation. P1451-00 - Diesel Particulate Filter System Performance. P2463-00 - Diesel Particulate Filter Restriction - Soot Accumulation Bank 1. P026B - Injection Timing Performance. P0607-00 - ECU Internal Performance. P20E8-00 - Reductant Pressure Too Low. P0301-00 - Cylinder 1 Misfire. P0302-00 - Cylinder 2 Misfire. P0303-00 - Cylinder 3 Misfire. P0304-00 - Cylinder 4 Misfire. P0305-00 - Cylinder 5 Misfire. P0306-00 - Cylinder 6 Misfire. P1C54-00 - SCR NOx Catalyst Missing. P2706-00 - MS Solenoid Circuit (68RFE Only). P1D73-00 - AGS Performance. P24A5-00 - EGR Cooler Bypass Bank 1 Control Stuck(Sales Code ETM). P0420-00 - Catalyst System Efficiency Below Threshold Bank 1(Sales Code ETM). P2002-00 - Diesel Particulate Filter Efficiency Below Threshold(Sales Code ETM). P0191-00 - Fuel Rail Pressure Sensor Circuit Performance(Sales Code ETM). P0461-00 - Fuel Level Sensor 1 Performance(Sales Code ETM). P0401-00 - EGR System Performance(Sales Code ETM). P208B-00 - Reductant Pump 1 Control Performance(Sales Code ETM). The customer may also notice one or more of the following: Idle Instability. Harsh downshift clunk during exhaust brake deceleration. Diesel Exhaust Fluid (DEF) gauge erratic when DEF level is low. Stall when putting in reverse in cold ambient temps. Engine stumble during engine warm up. Unstable idle when AC compressor cycles. Engine surge felt while driving(Sales Code ETM). Idle fluctuation. |
| 1810222REVA | 2022-10-31. Service bulletin. Flash: Powertrain Control Module (PCM) Updates This bulletin involves reprogramming the Engine Control Module/Powertrain ControlModule (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 moreof the following (DTCs) have been set: P0506 - Idle Control System RPM Lower Than Expected. P0299-00 - Turbocharger Underboost. P20EE-00 - NOx Catalyst Efficiency Below Threshold. P242F-00 - Diesel Particulate Filter Restriction - Ash Accumulation. P1451-00 - Diesel Particulate Filter System Performance. P2463-00 - Diesel Particulate Filter Restriction - Soot Accumulation Bank 1. P026B - Injection Timing Performance. P0607-00 - ECU Internal Performance. P20E8-00 - Reductant Pressure Too Low. P0301-00 - Cylinder 1 Misfire. P0302-00 - Cylinder 2 Misfire. P0303-00 - Cylinder 3 Misfire. P0304-00 - Cylinder 4 Misfire. P0305-00 - Cylinder 5 Misfire. P0306-00 - Cylinder 6 Misfire. P1C54-00 - SCR NOx Catalyst Missing. P2706-00 - MS Solenoid Circuit (68RFE Only). P1D73-00 - AGS Performance. P24A5-00 - EGR Cooler Bypass Bank 1 Control Stuck(Sales Code ETM). P0420-00 - Catalyst System Efficiency Below Threshold Bank 1(Sales Code ETM). P2002-00 - Diesel Particulate Filter Efficiency Below Threshold(Sales Code ETM). P0191-00 - Fuel Rail Pressure Sensor Circuit Performance(Sales Code ETM). P0461-00 - Fuel Level Sensor 1 Performance(Sales Code ETM). P0401-00 - EGR System Performance(Sales Code ETM). P208B-00 - Reductant Pump 1 Control Performance(Sales Code ETM). The customer may also notice one or more of the following: Idle Instability. Harsh downshift clunk during exhaust brake deceleration. Diesel Exhaust Fluid (DEF) gauge erratic when DEF level is low. Stall when putting in reverse in cold ambient temps. Engine stumble during engine warm up. Unstable idle when AC compressor cycles. Engine surge felt while driving(Sales Code ETM). Idle fluctuation. |
| S2018000008 | 2022-10-17. Service bulletin. Engine Surge Feel and/or Diagnostic Trouble Code P0299 ? Turbo Underboost Condition After Updating The Powertrain Control Module (PCM) Software. (ETL, ETM, ETN Engines) |
| S2018000007 | 2022-10-17. Service bulletin. Diagnostic Trouble Code (DTC) P0299 ? Turbocharger Underboost Additional Diagnostics |
33 on file from NHTSA, as of 2026-10-19. See them in the bulletin list. A bulletin lists model years: read the document for which vehicles it concerns.