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Service bulletins for the 2013 Ram 4500

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.

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

About P049D on the 2013 Ram 4500: what the code means, and the bulletins and recalls about the same components.

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Only bulletins with trouble code: P049D are shown. Show all

Bulletins, newest first
18-062-142022-08-22. Service bulletin. SERVICE BRAKES, HYDRAULIC; POWER TRAIN; FUEL SYSTEM, GASOLINE; BACK OVER PREVENTION; FUEL SYSTEM, DIESEL; EXTERIOR LIGHTING; ELECTRICAL SYSTEM. Flash: 6.7L Diagnostic and System Improvements This bulletin involves selectively erasing and reprogramming the Engine Control Module (ECM) with new software. Several software improvements are available for vehicles equipped with a Cummins 6.7L Turbo Diesel. These improvements are separated into the following categories.Prevent Or Reduce Unnecessary Malfunction Indicator Lamp (MIL) Illumination For The Following Diagnostic Trouble Codes (DTCs). These DTCs Are Currently Set As A One Trip Fault And Should Be A Two Trip Fault: P0201 - P0206 - Fuel Injector X Circuit/Open. U110E - Lost Ambient Temperature Message. P049D - EGR Control Position Exceeded Learning Limit.These DTCs Are Currently Set As A Two Trip Fault And Should Have Been A One Trip Fault: U12A4 - LOST COMMUNICATION WITH AMMONIA SENSOR Improvements To Prevent Or Reduce Unnecessary Malfunction Indicator Lamp (Mil) Illumination For: P2281 - Air Leak Between MAF and Throttle Body. U3017 - Control Module Timer/Clock Performance. U1421 - Implausible Ignition Key Off Time Received. P0128 - Thermostat Rationality. In cold ambient temperatures. P0087 - Fuel Rail Pressure Too Low. P0544 - Exhaust Gas Temperature Sensor Circuit - Bank 1 Sensor 1. P2002 - Diesel Particulate Filter Efficiency Below Threshold. P061A - Level 2 Torque Performance. P0234 - Turbocharger Over boost condition. P026A - Charge Air Cooler Efficiency Below Threshold. P0299 - Manifold Pressure Sensor Out of Range Low. P0544 - Exhaust Gas Temperature (EGT) Sensor Circuit - Bank 1 Sensor 1. P0562 - Battery Voltage Low. P20EE - SCR NOX Catalyst Efficiency Below Threshold - Bank 1. P2201 - Aftertreatment NOX Sensor Circuit Performance - Bank 1 Sensor 1. P24A5 - EGR Cooler Bypass Bank 1 Control Stuck. P2459 - Diesel Particulate Filter Regeneration Too Frequent. P249E - Closed Loop SCR Reductant Injection Control At Limit - Flow Too High.
18-078-152022-08-08. Service bulletin. BACK OVER PREVENTION; EXTERIOR LIGHTING; SERVICE BRAKES, HYDRAULIC; FUEL SYSTEM, DIESEL; FUEL SYSTEM, GASOLINE; ELECTRICAL SYSTEM. Flash: 6.7L Diagnostic and System Improvements This bulletin involves selectively erasing and reprogramming the Engine Control Module (ECM) with new software. Several software improvements are available for vehicles equipped with a Cummins 6.7L Turbo Diesel. These improvements are separated into the following categories. WARNING:There will be a choice between 2 calibrations. One for vehicles that utilize an ammonia sensor and one for vehicles that have had the ammonia sensor removed. Be sure to select the correct software based on vehicle configuration. Prevent Or Reduce Unnecessary Malfunction Indicator Lamp (MIL) Illumination For The Following Diagnostic Trouble Codes (DTCs). These DTCs Are Currently Set As A One Trip Fault And Should Be A Two Trip Fault: ? P0201 - P0206 - Fuel Injector X Circuit/Open. ? P049D - EGR Control Position Exceeded Learning Limit. These DTCs Are Currently Set As A Two Trip Fault And Should Have Been A One Trip Fault: ? U12A4 - Lost Communication With Ammonia Sensor. Improvements To Prevent Or Reduce Unnecessary Malfunction Indicator Lamp (Mil) Illumination For: ? 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. ? U3017 - Control Module Timer/Clock Performance. ? U1421 - Implausible Ignition Key Off Time Received. ? P0128 - Thermostat Rationality. In cold ambient temperatures. ? P0087 - Fuel Rail Pressure Too Low. ? P0544 - Exhaust Gas Temperature Sensor Circuit - Bank 1 Sensor 1. ? P2002 - Diesel Particulate Filter Efficiency Below Threshold. ? P061A - Level 2 Torque Performance. ? P0234 - Turbocharger Overboost condition. ? P026A - Charge Air Cooler Efficiency Below Threshold. ? P0299 - Manifold Pressure Sensor Out of Range Low. ? P0544 - Exhaust Gas Temperature (EGT
18-078-152022-07-25. Service bulletin. FUEL SYSTEM, GASOLINE; BACK OVER PREVENTION; FUEL SYSTEM, DIESEL; EXTERIOR LIGHTING; ELECTRICAL SYSTEM; SERVICE BRAKES, HYDRAULIC. Flash: 6.7L Diagnostic and System Improvements This bulletin involves selectively erasing and reprogramming the Engine Control Module (ECM) with new software. Several software improvements are available for vehicles equipped with a Cummins 6.7L Turbo Diesel. These improvements are separated into the following categories. WARNING:There will be a choice between 2 calibrations. One for vehicles that utilize an ammonia sensor and one for vehicles that have had the ammonia sensor removed. Be sure to select the correct software based on vehicle configuration. Prevent Or Reduce Unnecessary Malfunction Indicator Lamp (MIL) Illumination For The Following Diagnostic Trouble Codes (DTCs). These DTCs Are Currently Set As A One Trip Fault And Should Be A Two Trip Fault: ? P0201 - P0206 - Fuel Injector X Circuit/Open. ? P049D - EGR Control Position Exceeded Learning Limit. These DTCs Are Currently Set As A Two Trip Fault And Should Have Been A One Trip Fault: ? U12A4 - Lost Communication With Ammonia Sensor. Improvements To Prevent Or Reduce Unnecessary Malfunction Indicator Lamp (Mil) Illumination For: ? 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. ? U3017 - Control Module Timer/Clock Performance. ? U1421 - Implausible Ignition Key Off Time Received. ? P0128 - Thermostat Rationality. In cold ambient temperatures. ? P0087 - Fuel Rail Pressure Too Low. ? P0544 - Exhaust Gas Temperature Sensor Circuit - Bank 1 Sensor 1. ? P2002 - Diesel Particulate Filter Efficiency Below Threshold. ? P061A - Level 2 Torque Performance. ? P0234 - Turbocharger Overboost condition. ? P026A - Charge Air Cooler Efficiency Below Threshold. ? P0299 - Manifold Pressure Sensor Out of Range Low. ? P0544 - Exhaust Gas Temperature (EGT
18-078-152018-12-17. Service bulletin. SERVICE BRAKES, HYDRAULIC; ENGINE; FUEL SYSTEM, GASOLINE; ELECTRICAL SYSTEM. Flash: 6.7L Diagnostic and System Improvements This bulletin involves selectively erasing and reprogramming the Engine Control Module (ECM) with new software. Several software improvements are available for vehicles equipped with a Cummins 6.7L Turbo Diesel. These improvements are separated into the following categories. WARNING:There will be a choice between 2 calibrations. One for vehicles that utilize an ammonia sensor and one for vehicles that have had the ammonia sensor removed. Be sure to select the correct software based on vehicle configuration. Prevent Or Reduce Unnecessary Malfunction Indicator Lamp (MIL) Illumination For The Following Diagnostic Trouble Codes (DTCs). These DTCs Are Currently Set As A One Trip Fault And Should Be A Two Trip Fault: ? P0201 - P0206 - Fuel Injector X Circuit/Open. ? P049D - EGR Control Position Exceeded Learning Limit. These DTCs Are Currently Set As A Two Trip Fault And Should Have Been A One Trip Fault: ? U12A4 - Lost Communication With Ammonia Sensor. Improvements To Prevent Or Reduce Unnecessary Malfunction Indicator Lamp (Mil) Illumination For: ? 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. ? U3017 - Control Module Timer/Clock Performance. ? U1421 - Implausible Ignition Key Off Time Received. ? P0128 - Thermostat Rationality. In cold ambient temperatures. ? P0087 - Fuel Rail Pressure Too Low. ? P0544 - Exhaust Gas Temperature Sensor Circuit - Bank 1 Sensor 1. ? P2002 - Diesel Particulate Filter Efficiency Below Threshold. ? P061A - Level 2 Torque Performance. ? P0234 - Turbocharger Overboost condition. ? P026A - Charge Air Cooler Efficiency Below Threshold. ? P0299 - Manifold Pressure Sensor Out of Range Low. ? P0544 - Exhaust Gas Temperature (EGT
18-062-142018-06-11. Service bulletin. ENGINE AND ENGINE COOLING. Flash: 6.7L Diagnostic and System Improvements This bulletin involves selectively erasing and reprogramming the Engine Control Module (ECM) with new software. Several software improvements are available for vehicles equipped with a Cummins 6.7L Turbo Diesel. These improvements are separated into the following categories.Prevent Or Reduce Unnecessary Malfunction Indicator Lamp (MIL) Illumination For The Following Diagnostic Trouble Codes (DTCs). These DTCs Are Currently Set As A One Trip Fault And Should Be A Two Trip Fault: P0201 - P0206 - Fuel Injector X Circuit/Open. U110E - Lost Ambient Temperature Message. P049D - EGR Control Position Exceeded Learning Limit.These DTCs Are Currently Set As A Two Trip Fault And Should Have Been A One Trip Fault: U12A4 - LOST COMMUNICATION WITH AMMONIA SENSOR Improvements To Prevent Or Reduce Unnecessary Malfunction Indicator Lamp (Mil) Illumination For: P2281 - Air Leak Between MAF and Throttle Body. U3017 - Control Module Timer/Clock Performance. U1421 - Implausible Ignition Key Off Time Received. P0128 - Thermostat Rationality. In cold ambient temperatures. P0087 - Fuel Rail Pressure Too Low. P0544 - Exhaust Gas Temperature Sensor Circuit - Bank 1 Sensor 1. P2002 - Diesel Particulate Filter Efficiency Below Threshold P061A - Level 2 Torque Performance. P0234 - Turbocharger Overboost condition. P026A - Charge Air Cooler Efficiency Below Threshold. P0299 - Manifold Pressure Sensor Out of Range Low. P0544 - Exhaust Gas Temperature (EGT) Sensor Circuit - Bank 1 Sensor 1. P0562 - Battery Voltage Low. P20EE - SCR NOX Catalyst Efficiency Below Threshold - Bank 1. P2201 - Aftertreatment NOX Sensor Circuit Performance - Bank 1 Sensor 1. P24A5 - EGR Cooler Bypass Bank 1 Control Stuck. P2459 - Diesel Particulate Filter Regeneration Too Frequent. P249E - Closed Loop SCR Reductant Injection Control At Limit - Flow Too High.Other Updates:

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