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Service bulletins for the 2014 Ram 2500

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.

516 on file from NHTSA, as of 2026-10-19.

About P2002 on the 2014 Ram 2500: what the code means, and the bulletins and recalls about the same components.

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Only bulletins with trouble code: P2002 are shown. Show all

Bulletins, newest first
18054162022-12-19. Service bulletin. BACK OVER PREVENTION; EXTERIOR LIGHTING; SERVICE BRAKES, HYDRAULIC; POWER TRAIN; ELECTRICAL SYSTEM; ELECTRONIC STABILITY CONTROL:AUTOMATIC (ASC); FUEL SYSTEM, DIESEL; FUEL SYSTEM, GASOLINE. Flash: 6.7L Diagnostic And System Improvements 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, a technician may find one or more of the following Diagnostic Trouble Codes (DTCs) set in the PCM memory: · **P218F - Reductant No Flow Detected. · P242F - Diesel Particulate Filter Restriction - Ash Accumulation. · P2281 - Air Leak Between MAF And Throttle Body.** · P205E - (Diesel Exhaust Fluid) Reductant Tank Temperature Sensor Circuit Intermittent (setting when the block heater is plugged in). · U110E - Lost Ambient Temperature Message. · P20E8 - (Diesel Exhaust Fluid) Reductant Pressure Too Low. · P1477 - Intake Air Diverter Valve Position Sensor Circuit Shorted To Ground. · U3017 - Control Module Timer/Clock Performance. · P0087 - Fuel Rail Pressure Too Low. · P0544 - Exhaust Gas Temperature Sensor Circuit - Sensor 1/1. · P0128 - Thermostat Rationality. In cold ambient temperatures. · P214D - SCR NOx Catalyst Outlet Temperature Too High During Particulate Filter Regeneration. · P24A5 - Exhaust Gas Recirculation (EGR) Cooler Bypass Bank 1 Control Stuck. · P040B - Exhaust Gas Recirculation Temperature Sensor ?A? Circuit Performance. · U1421 - Implausible Ignition Key Off Time Received. · P0420 - Catalyst Efficiency Below Threshold. · P026B - Injection Timing Performance. · P04DB - Crankcase Ventilation System Disconnected. · P1C55 - NOx Sensor Intermittent - Bank 1 Sensor 1. · P202E - Diesel Exhaust Fluid (DEF) Reductant Injector Performance. · P20EE - SCR NOx Catalyst Efficiency Below Threshold - Bank 1. · P2002 - Diesel Particulate Filter Efficiency Below Threshold. · P0604 - Internal Control Module RAM. · P1451 - Diesel Particulate Filter System Performance.
1805314REVB2022-09-26. Service bulletin. FUEL SYSTEM, DIESEL; POWER TRAIN; BACK OVER PREVENTION; ELECTRICAL SYSTEM; FUEL SYSTEM, GASOLINE; SERVICE BRAKES, HYDRAULIC; EXTERIOR LIGHTING. Flash: 6.7L Diagnostic And System Improvements Bulletin involves reprogramming the Powertrain Control Module (PCM) with new software. Several software improvements are available for vehicles equipped with a Cummins 6.7L turbo diesel. They are as follows:Prevent Or Reduce Malfunction Indicator Lamp (MIL) Illumination When No Defect is Present Following Diagnostic Trouble Codes (DTCs). These Faults Have Been Changed From P0201 - P0206 - Fuel Injector X Circuit Open Fault Codes. U110E - Lost Ambient Temperature Message. P049D - EGR Control Position Exceeding Learning Limit. P226C - Turgocharger Boost Control ?A? Slow Response.The Following DTC Has Been Changed From A Two Trip Fault To One Trip Fault: U1A24 - Lost Communication With Ammonia Sensor.Improvements To Prevent/ Reduce Malfunction Indicator Lamp (MIL) Illumination When No Defect Is Present For: U3017 - Control Module Timer/Clock Performance. P0087 - Fuel Rail Pressure Too Low. P2281 - Air Leak Between MAF And Throttle Body. P0544 - Exhaust Gas Temperature Sensor Circuit - Sensor 1/1. P0128 - Thermostat Rationality. In cold ambient temperatures. P214D - SCR NOx Catalyst Outlet Temperature Too High During Particulate Filter Regeneration. P24A5 - EGR Cooler Bypass Bank 1 Control Stuck. P040B - Exhaust Gas Recirculation Temperature Sensor ?A? Circuit Performance. U1421 - Implausible Ignition Key Off Time Received. P0420 - Catalyst Efficiency Below Threshold. P026B - Injection Timing Performance. P04DB - Crankcase Ventilation System Disconnected. P1C55 - NOx Sensor Intermittent - Bank 1 Sensor 1. P202E - Diesel Exhaust Fluid (DEF) Reductant Injector Performance. P20EE - SCR NOx Catalyst Efficiency Below Threshold - Bank 1. P2002 - Diesel Particulate Filter Efficiency Below Threshold. P0604 - Internal Control Module RAM. P1451 - Diesel Particulate Filter System Performance.Other Updates Included: Urea system calibration changes. Fuel Filter Minder Calibrat
18-053-142022-08-22. Service bulletin. ELECTRICAL SYSTEM; BACK OVER PREVENTION; FUEL SYSTEM, GASOLINE; FUEL SYSTEM, DIESEL; EXTERIOR LIGHTING; SERVICE BRAKES, HYDRAULIC. Flash: 6.7L Diagnostic And System Improvements This bulletin involves reprogramming the Powertrain Control Module (PCM) with new software. Several software improvements are available for vehicles equipped with a Cummins 6.7L turbo diesel. They are as follows: Prevent Or Reduce Unnecessary Malfunction Indicator Lamp (MIL) Illumination For The Following DTCs. These Faults Have Been Changed From One Trip Faults To Two Trip Faults: ? P0201 - P0206 - Fuel Injector X Circuit Open Fault Codes. ? U110E - Lost Ambient Temperature Message. ? P049D - EGR Control Position Exceeding Learning Limit. ? P226C - Turgocharger Boost Control ?A? Slow Response. The Following DTC Has Been Changed From A Two Trip Fault To One Trip Fault: ? U1A24 - Lost Communication With Ammonia Sensor. Improvements To Prevent Or Reduce Unnecessary Malfunction Indicator Lamp (MIL) Illumination For: ? P0087 - Fuel Rail Pressure Too Low. ? P2281 - Air Leak Between MAF And Throttle Body. ? P0544 - Exhaust Gas Temperature Sensor Circuit - Sensor 1/1. ? P0128 - Thermostat Rationality. In cold ambient temperatures. ? P214D - SCR NOx Catalyst Outlet Temperature Too High During Particulate Filter Regeneration. ? P24A5 - EGR Cooler Bypass Bank 1 Control Stuck. ? P040B - Exhaust Gas Recirculation Temperature Sensor ?A? Circuit Performance. ? U3017 - Control Module Timer/Clock Performance. ? U1421 - Implausible Ignition Key Off Time Received. ? P0420 - Catalyst Efficiency Below Threshold. ? P026B - Injection Timing Performance. ? P04DB - Crankcase Ventilation System Disconnected. ? P1C55 - NOx Sensor Intermittent - Bank 1 Sensor 1. ? P202E - Diesel Exhaust Fluid (DEF) Reductant Injector Performance. ? P20EE - SCR NOx Catalyst Efficiency Below Threshold - Bank 1. ? P2002 - Diesel Particulate Filter Efficiency Below Threshold. ? P0604 - Internal Control Module RAM. ? P1451 - Diesel Particulate Filter System Performance. Other Updates Included: ? Urea system cali
90037792022-08-08. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE:OIL/LUBRICATION:FILTER/SCREEN. Diesel Particulate Filter (DPF) Assembly For Cummins equipped vehicles ONLY: If a customer comes in with a check engine light for P2002 which has led to replacing the DPF, please contact Dean Armstrong at cell (248) 202-8148. Cummins engineering is currently investigating the root cause to this condition. If you do not receive an answer or call back within 15 minutes, proceed with the repair.
90037792022-07-25. Service bulletin. FUEL SYSTEM, OTHER:FUEL FILTER; ENGINE AND ENGINE COOLING:ENGINE:DIESEL. Diesel Particulate Filter (DPF) Assembly For Cummins equipped vehicles ONLY: If a customer comes in with a check engine light for P2002 which has led to replacing the DPF, please contact Dean Armstrong at cell (248) 202-8148. Cummins engineering is currently investigating the root cause to this condition. If you do not receive an answer or call back within 15 minutes, proceed with the repair.
18-045-15 REV A2019-05-20. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE:DIESEL; POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE (TCM/PCM/TECM); ELECTRICAL SYSTEM. Flash: 6.7L Diagnostic And System Improvements This bulletin involves reprogramming the Engine Control Module/Powertrain Control Module (ECM/PCM) with the latest available software. A small number of customers may experience a Malfunction Indicator Lamp (MIL) Illumination. Upon further investigation, a technician may find one or more of the following Diagnostic Trouble Codes (DTCs) set in the PCM memory: ? P205E - (Diesel Exhaust Fluid) Reductant Tank Temperature Sensor Circuit Intermittent (setting when the block heater is plugged in). ? U110E - Lost Ambient Temperature Message. ? P20E8 - (Diesel Exhaust Fluid) Reductant Pressure Too Low. ? P2281 - Air Leak Between MAF And Throttle Body. ? P1477 - Intake Air Diverter Valve Position Sensor Circuit Shorted To Ground. ? U3017 - Control Module Timer/Clock Performance. ? P0087 - Fuel Rail Pressure Too Low. ? P0544 - Exhaust Gas Temperature Sensor Circuit - Sensor 1/1. ? P0128 - Thermostat Rationality. In cold ambient temperatures. ? P214D - SCR NOx Catalyst Outlet Temperature Too High During Particulate Filter Regeneration. ? P24A5 - EGR Cooler Bypass Bank 1 Control Stuck. ? P040B - Exhaust Gas Recirculation Temperature Sensor ?A? Circuit Performance. ? U1421 - Implausible Ignition Key Off Time Received. ? P0420 - Catalyst Efficiency Below Threshold. ? P026B - Injection Timing Performance. ? P04DB - Crankcase Ventilation System Disconnected. ? P1C55 - NOx Sensor Intermittent - Bank 1 Sensor 1. ? P202E - Diesel Exhaust Fluid (DEF) Reductant Injector Performance. ? P20EE - SCR NOx Catalyst Efficiency Below Threshold - Bank 1. ? P2002 - Diesel Particulate Filter Efficiency Below Threshold. ? P0604 - Internal Control Module RAM. ? P1451 - Diesel Particulate Filter System Performance. In addition to the above symptoms, the following software improvements are also included in this update: The Following DTCs Have Been Changed From A One Trip Fault To A Two Trip Fault: ? P0201 - P0206 - Fuel injector
18-045-152018-11-26. Service bulletin. ELECTRICAL SYSTEM. Flash: 6.7L Diagnostic And System Improvements This bulletin involves reprogramming the Engine Control Module/Powertrain Control Module (ECM/PCM) with the latest available software. A small number of customers may experience a Malfunction Indicator Lamp (MIL) Illumination. Upon further investigation, a technician may find one or more of the following Diagnostic Trouble Codes (DTCs) set in the PCM memory. ? P2281 - Air Leak Between MAF And Throttle Body. ? P1477 - Intake Air Diverter Valve Position Sensor Circuit Shorted To Ground. ? U3017 - Control Module Timer/Clock Performance. ? U110E - Lost Ambient Temperature Message. ? P0087 - Fuel Rail Pressure Too Low. ? P2281 - Air Leak Between MAF And Throttle Body. ? P0544 - Exhaust Gas Temperature Sensor Circuit - Sensor 1/1. ? P0128 - Thermostat Rationality. In cold ambient temperatures. ? P214D - SCR NOx Catalyst Outlet Temperature Too High During Particulate Filter Regeneration. ? P24A5 - EGR Cooler Bypass Bank 1 Control Stuck. ? P040B - Exhaust Gas Recirculation Temperature Sensor ?A? Circuit Performance. ? U1421 - Implausible Ignition Key Off Time Received. ? P0420 - Catalyst Efficiency Below Threshold. ? P026B - Injection Timing Performance. ? P04DB - Crankcase Ventilation System Disconnected. ? P1C55 - NOx Sensor Intermittent - Bank 1 Sensor 1. ? P202E - Diesel Exhaust Fluid (DEF) Reductant Injector Performance. ? P20EE - SCR NOx Catalyst Efficiency Below Threshold - Bank 1. ? P2002 - Diesel Particulate Filter Efficiency Below Threshold. ? P0604 - Internal Control Module RAM. ? P1451 - Diesel Particulate Filter System Performance. In addition to the above symptoms, the following software improvements are also included in this update. The Following DTCs Have Been Changed From A One Trip Fault To A Two Trip Fault: ? P0201 - P0206 - Fuel Injector X Circuit Open Fault Codes. ? P049D - EGR Control Position Exceeding Learning Limit. ? P226C - Turbocharger Boost Control
18-053-14 REV. B2018-06-11. Service bulletin. ELECTRICAL SYSTEM:SOFTWARE; POWER TRAIN. Flash: 6.7L Diagnostic And System Improvements This bulletin involves reprogramming the Powertrain Control Module (PCM) with new software. Several software improvements are available for vehicles equipped with a Cummins 6.7L turbo diesel. They are as follows:Prevent Or Reduce Malfunction Indicator Lamp (MIL) Illumination When No Defect is Present For The Following Diagnostic Trouble Codes (DTCs). These Faults Have Been Changed From A One Trip Fault To A Two Trip Fault: P0201 - P0206 - Fuel Injector X Circuit Open Fault Codes. U110E - Lost Ambient Temperature Message. P049D - EGR Control Position Exceeding Learning Limit. P226C - Turgocharger Boost Control ?A? Slow Response.The Following DTC Has Been Changed From A Two Trip Fault To One Trip Fault: U1A24 - Lost Communication With Ammonia Sensor.Improvements To Prevent Or Reduce Malfunction Indicator Lamp (MIL) Illumination When No Defect Is Present For: U3017 - Control Module Timer/Clock Performance P0087 - Fuel Rail Pressure Too Low P2281 - Air Leak Between MAF And Throttle Body P0544 - Exhaust Gas Temperature Sensor Circuit - Sensor 1/1 P0128 - Thermostat Rationality. In cold ambient temperatures P214D - SCR NOx Catalyst Outlet Temperature Too High During Particulate Filter Regeneration P24A5 - EGR Cooler Bypass Bank 1 Control Stuck P040B - Exhaust Gas Recirculation Temperature Sensor ?A? Circuit Performance U1421 - Implausible Ignition Key Off Time Received P0420 - Catalyst Efficiency Below Threshold P026B - Injection Timing Performance P04DB - Crankcase Ventilation System Disconnected P1C55 - NOx Sensor Intermittent - Bank 1 Sensor 1 P202E - Diesel Exhaust Fluid (DEF) Reductant Injector Performance P20EE - SCR NOx Catalyst Efficiency Below Threshold - Bank 1 P2002 - Diesel Particulate Filter Efficiency Below Threshold P0604 - Internal Control Module RAM P1451 - Diesel Particulate Filter System Performance.Other Updates Included:
18-053-14 REV. A2018-06-11. Service bulletin. POWER TRAIN; ELECTRICAL SYSTEM:SOFTWARE. Flash: 6.7L Diagnostic And System Improvements This bulletin involves reprogramming the Powertrain Control Module (PCM) with new software. Several software improvements are available for vehicles equipped with a Cummins 6.7L turbo diesel. They are as follows: Prevent Or Reduce Unnecessary Malfunction Indicator Lamp (MIL) Illumination For The Following DTCs. These Faults Have Been Changed From One Trip Faults To Two Trip Faults: * P0201 - P0206 - Fuel Injector X Circuit Open Fault Codes. * U110E - Lost Ambient Temperature Message. * P049D - EGR Control Position Exceeding Learning Limit. * P226C - Turgocharger Boost Control ?A? Slow Response. The Following DTC Has Been Changed From A Two Trip Fault To One Trip Fault: * U1A24 - Lost Communication With Ammonia Sensor. Improvements To Prevent Or Reduce Unnecessary Malfunction Indicator Lamp (MIL) Illumination For: * P0087 - Fuel Rail Pressure Too Low. * P2281 - Air Leak Between MAF And Throttle Body. * P0544 - Exhaust Gas Temperature Sensor Circuit - Sensor 1/1. * P0128 - Thermostat Rationality. In cold ambient temperatures. * P214D - SCR NOx Catalyst Outlet Temperature Too High During Particulate Filter Regeneration. * P24A5 - EGR Cooler Bypass Bank 1 Control Stuck. * P040B - Exhaust Gas Recirculation Temperature Sensor ?A? Circuit Performance. * U3017 - Control Module Timer/Clock Performance. * U1421 - Implausible Ignition Key Off Time Received. * P0420 - Catalyst Efficiency Below Threshold. * P026B - Injection Timing Performance. * P04DB - Crankcase Ventilation System Disconnected. * P1C55 - NOx Sensor Intermittent - Bank 1 Sensor 1. * P202E - Diesel Exhaust Fluid (DEF) Reductant Injector Performance. * P20EE - SCR NOx Catalyst Efficiency Below Threshold - Bank 1. * P2002 - Diesel Particulate Filter Efficiency Below Threshold. * P0604 - Internal Control Module RAM. * P1451 - Diesel Particulate Filter System Performance. Other Updates Included: * Urea system cali
18-053-142018-06-11. Service bulletin. EQUIPMENT; ENGINE AND ENGINE COOLING; ELECTRICAL SYSTEM. Flash: 6.7L Diagnostic And System Improvements This bulletin involves reprogramming the Powertrain Control Module (PCM) with new software. Several software improvements are available for vehicles equipped with a Cummins 6.7L turbo diesel. They are as follows: Prevent Or Reduce Unnecessary Malfunction Indicator Lamp (MIL) Illumination For The Following DTCs. These Faults Have Been Changed From One Trip Faults To Two Trip Faults: ? P0201 - P0206 - Fuel Injector X Circuit Open Fault Codes. ? U110E - Lost Ambient Temperature Message. ? P049D - EGR Control Position Exceeding Learning Limit. ? P226C - Turgocharger Boost Control ?A? Slow Response. The Following DTC Has Been Changed From A Two Trip Fault To One Trip Fault: ? U1A24 - Lost Communication With Ammonia Sensor. Improvements To Prevent Or Reduce Unnecessary Malfunction Indicator Lamp (MIL) Illumination For: ? P0087 - Fuel Rail Pressure Too Low. ? P2281 - Air Leak Between MAF And Throttle Body. ? P0544 - Exhaust Gas Temperature Sensor Circuit - Sensor 1/1. ? P0128 - Thermostat Rationality. In cold ambient temperatures. ? P214D - SCR NOx Catalyst Outlet Temperature Too High During Particulate Filter Regeneration. ? P24A5 - EGR Cooler Bypass Bank 1 Control Stuck. ? P040B - Exhaust Gas Recirculation Temperature Sensor ?A? Circuit Performance. ? U3017 - Control Module Timer/Clock Performance. ? U1421 - Implausible Ignition Key Off Time Received. ? P0420 - Catalyst Efficiency Below Threshold. ? P026B - Injection Timing Performance. ? P04DB - Crankcase Ventilation System Disconnected. ? P1C55 - NOx Sensor Intermittent - Bank 1 Sensor 1. ? P20EE - SCR NOx Catalyst Efficiency Below Threshold - Bank 1. ? P2002 - Diesel Particulate Filter Efficiency Below Threshold. ? P0604 - Internal Control Module RAM. ? P1451 - Diesel Particulate Filter System Performance. Other Updates Included: ? Fuel Filter Minder Calibration Changes ? Cruise control
90037792017-11-03. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE:DIESEL. Diesel Particulate Filter (DPF) Assembly If a customer comes in with a check engine light for P2002 which has led to replacing the DPF, please contact Dean Armstrong at cell (248)-202-8148. Cummins engineering is currently investigating the root cause to this condition. If you do not receive an answer or call back within 15 minutes, proceed with the repair.

The summaries are NHTSA's. Each bulletin's page links NHTSA's copy of the manufacturer's document.