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Service bulletin 25-002-13

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.

The communication, as NHTSA indexes it (as of 2026-10-19)
TypeService bulletin
NHTSA id10128966
Published by NHTSA2018-02-21
Manufacturer's number25-002-13
Manufacturer's date2013-02-28
NHTSA componentFUEL SYSTEM, DIESEL

NHTSA's summary

MIL Illumination Due To P1C56 - NOx Sensor Intermittent - Bank 1 Sensor 2 This bulletin involves verifying excessive Diesel Exhaust Fluid (DEF) deposits in the decomposition tube collected and if present, replacing the Catalytic Converter Shield with a ?clam shell? shield with a metal exterior.This repair is to be performed in addition to diagnostics available in DEALERCONNECT > Service > Repair Information > TechCONNECT > 28 - DTC-Based Diagnostics > MODULE, Powertrain Control (PCM), DD/DP - Chassis Cab > Diagnosis and Testing > P1C56 - NOx SENSOR INTERMITTENT - BANK 1 SENSOR 2 Customer may experience MIL illumination. Further investigation by the technician may find P1C56 - NOx Sensor Intermittent - Bank 1 Sensor 2 is set active or stored.This condition may be caused by insufficient heat retention in the exhaust at or near the DEF doser.

The document

The document is the manufacturer's. This site does not hold it. NHTSA files a document at one of these two addresses; we have not asked NHTSA which.

Components

Fuel system

Trouble codes named

P1C56

Vehicles listed
DODGE RAM 35002011 (the catalog's model; the bulletin names a series or trim of it)
DODGE RAM 45002011 (the catalog's model; the bulletin names a series or trim of it)

Listing a model year does not mean every vehicle of it is concerned: the document says which.

Recalls for the same vehicles and component
18V1600002018-03-08. FUEL SYSTEM, GASOLINE:STORAGE:TANK ASSEMBLY:MOUNTING
20144492014-10-09. Fuel System
14V6350002014-10-08. ENGINE AND ENGINE COOLING:ENGINE:DIESEL; FUEL SYSTEM, DIESEL

A recall listed here may apply to some of the same vehicles. Only the manufacturer can say whether it applies to one vehicle.

Other bulletins for the same vehicles and component
90042672022-10-17. Service bulletin. FUEL, Tank Please be advised, do not replace fuel tanks with a fuel tank that has a different capacity than the vehicle was equipped with from the factory. Please do not attempt to upfit vehicles at the dealer with increased capacity tanks, they are not compatible.
25005142022-09-26. Service bulletin. Diesel Exhaust Fluid This bulletin provides information regarding the Diesel Exhaust Fluid (DEF) vehicle delivery fill guidelines.
25001212022-09-26. Service bulletin. Dual EVAP System Extreme Duty Vapor Canister Filter Kit This informational bulletin is to make technicians aware that an EVAP dual vapor canister filter kit(Mopar part #68478013AA)is available in place of the OEM single vapor canister filter.This kit should not be installed on vehicles driven in normal conditions that are not subjected to the below symptom/conditions. Customers operating fleet or severe/extreme duty gasoline vehicles in continuous dusty driving conditions can plug the single OE filter system and may experience a Malfunction Indicator Lamp (MIL) illumination. Upon furtherinvestigation the technician may find that the following Diagnostic Trouble Codes (DTCs) have been set:P0441 - EVAP Purge System Performance. P062A - Fuel Pump Control Performance. Customers may also experience the following conditions:Hard to fill fuel tank with fuel. Premature shut-off of the gas nozzle when refueling. Flow back of fuel while refueling.
25-001-172022-08-08. Service bulletin. Diesel Exhaust Fluid This bulletin provides information regarding the Diesel Exhaust Fluid (DEF) vehicle delivery fill guidelines.
90036942022-08-08. Service bulletin. Oil Pump Assembly If error code P06DD present on any Pentastar V6 application, please inspect oil pump for relief valve failure. See photo attached. If valve is found out of place please call Bob Jackson (248) 944-0466 bob.jackson@fcagroup.com, or Joe Lovell (734) 309-6467 joe.lovell@fcagroup.com before proceeding. If unable to reach after 15 minutes record the following information and proceed with oil pump replacement and hold part for return to FCA via Fastrack system
18-013-132022-07-25. Service bulletin. FLASH: Engine Systems and PTO Enhancements This bulletin involves selectively erasing and reprogramming the Engine Control Module (ECM) with new software. Cab chassis trucks equipped with a 6.7L Cummins diesel have a number of software improvements available. This latest Service Bulletin (SB) will include:Improvements To Prevent Unnecessary Malfunction Indicator Lamp (MIL) Illumination For: P0524 - ENGINE OIL PRESSURE SENSOR CIRCUIT LOW P051B - CRANKCASE PRESSURE SENSOR CIRCUIT RANGE/PERFORMANCE P20EE - SCR NOx CATALYST EFFICIENCY BELOW THRESHOLD - BANK 1 U010E - LOST COMMUNICATION WITH DIESEL EXHAUST FLUID CONTROL UNIT P2609 - INTAKE AIR HEATER SYSTEM PERFORMANCE P061A - ETC LEVEL 2 TORQUE PERFORMANCE P1123 - POWER TAKE OFF SYSTEM MONITOR CONTROL ERROR P2579 - TURBOCHARGER SPEED SENSOR CIRCUIT PERFORMANCE P2453 - DIESEL PARTICULATE FILTER PRESSURE SENSOR A CIRCUIT PERFORMANCE U059F - INVALID DATA RECEIVED FROM NOx SENSOR "B" P20EE - SCR NOx CATALYST EFFICIENCY BELOW THRESHOLD - BANK 1 Vehicles with DTC P20EE set in conditions other than highway speed and/or high load drive cycles should have normal diagnostics performed Enhanced Diagnostics For: Variable Geometry Turbocharger. Fuel level sensor. Misfire without MIL illuminationOther Updates: Too frequent regeneration readiness improvement Correct CAC out voltage in WiTech Add ability to read EMP sensor value in WiTech Display correct crankcase pressure in WiTech Display correct EGR position in WiTech Display correct alternator voltage in WiTech Improve idle shutdown messages - extra message removed Low Diesel Exhaust Fluid (DEF) level EVIC messaging strategy changes. Diesel Exhaust Fluid (DEF) system tampering EVIC messaging strategy changes. Oil change monitor - updated for easier reset (same basic procedure, easier to reset).
08-010-132022-07-25. Service bulletin. Fluid Leak From Washer Reservoir (X44 Warranty Extension 5 Years/100,000 Miles (160,000 KMS)) This bulletin involves inspecting and/or replacing the washer reservoir. A customer may have a condition where fluid is leaking from the washer reservoir. On further inspection the technician may find cracks in the reservoir by the washer pump pocket.
25-002-132022-07-25. Service bulletin. MIL Illumination Due To P1C56 - NOx Sensor Intermittent - Bank 1 Sensor 2 This bulletin involves verifying excessive Diesel Exhaust Fluid (DEF) deposits in the decomposition tube collected and if present, replacing the Catalytic Converter Shield with a ?clam shell? shield with a metal exterior.This repair is to be performed in addition to diagnostics available in DEALERCONNECT > Service > Repair Information > TechCONNECT > 28 - DTC-Based Diagnostics > MODULE, Powertrain Control (PCM), DD/DP - Chassis Cab > Diagnosis and Testing > P1C56 - NOx SENSOR INTERMITTENT - BANK 1 SENSOR 2 Customer may experience MIL illumination. Further investigation by the technician may find P1C56 - NOx Sensor Intermittent - Bank 1 Sensor 2 is set active or stored.This condition may be caused by insufficient heat retention in the exhaust at or near the DEF doser.
25-004-122022-07-25. Service bulletin. Malfunction Indicator Lamp Illumination Due To Oxygen Sensor This bulletin involves replacement of the Oxygen Sensor Connectors for any Oxygen Sensor related DTC. Do NOT replace any parts prior to performing this bulletin and the Verifications test below. If the vehicle has any of the following DTC?s for O2 Sensors, Stored, Pending or Active, perform the Repair Procedure. ? P013A O2 Sensor 1/2 Slow Response - Rich To Lean (Soot related code, see note) ? P013B O2 Sensor 1/2 Slow Response - Lean To Rich (Soot related code, see note) ? P014C O2 Sensor 1/1 Slow Response - Rich To Lean (Soot related code, see note) ? P014D O2 Sensor 1/1 Slow Response - Lean To Rich (Soot related code, see note) ? P0030 O2 Sensor 1/1 Heater Circuit ? P0031 O2 Sensor 1/1 Heater Circuit Low ? P0032 O2 Sensor 1/1 Heater Circuit High ? P0036 O2 Sensor 1/2 Heater Circuit Malfunction ? P0037 O2 Sensor Heater Circuit Low 1/2 ? P0038 O2 Sensor Heater Circuit High 1/2 ? P0053 O2 Sensor Heater 1/1 Resistance ? P0054 O2 Sensor Heater 1/2 Resistance ? P064D Internal Control Module 02 Sensors Processor Performance - Bank 1 ? P0131 1/1 02 Sensor Shorted To Ground ? P0132 1/1 02 Sensor Shorted To Voltage ? P0135 O2 Sensor 1/1 Heater Performance ? P0137 1/2 02 Sensor Shorted To Ground ? P0138 1/2 02 Sensor Shorted To Voltage ? P0141 O2 Sensor 1/2 Heater Performance ? P113C O2 Sensor Power Supply Circuit Performance ? P2195 O2 Sensor 1/1 Out Of Range High ? P2196 O2 Sensor 1/1 Out Of Range Low ? P22AB O2 Sensor Positive Current Control Circuit/Open - Bank 1 Sensor 2 ? P22AE O2 Sensor Reference Voltage Circuit/Open - Bank 1 Sensor 2 ? P22B2 O2 Sensor Negative Current Control Circuit/Open - Bank 1 ? P22B5 O2 Sensor 1/2 Pump Cell Current Trim Circuit Open ? P2237 O2 Sensor 1/1 Pump Cell Current Circuit Low ? P2243 O2 Sensor 1/1 Reference Voltage Circuit Open ? P2251 O2 Sensor 1/1 Negative Current Control Circuit/Open ? P2270 O2 Sensor 1/2 Out Of R
14-005-122022-07-25. Service bulletin. Heavy Duty Filtration MOPAR Retrofit or Add On Parts Available