# Service bulletin 18\-053\-14

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.

- Type: Service bulletin
- NHTSA id: 10139778
- Published by NHTSA: 2018\-06\-11
- Manufacturer's number: 18\-053\-14
- Manufacturer's date: 2014\-10\-07
- NHTSA component: EQUIPMENT; ENGINE AND ENGINE COOLING; ELECTRICAL SYSTEM

## NHTSA's summary

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

## The document

- [NHTSA's copy of the document (PDF)](https://static.nhtsa.gov/odi/tsbs/2014/MC-10139778-9999.pdf)
- [If that address does not open, try this one](https://static.nhtsa.gov/odi/tsbs/2014/MC-10139778-0001.pdf)

The document is the manufacturer's. This site does not hold it.

## Components

Electrical system, Engine, Equipment and accessories

## Trouble codes named

P0087, P0128, P0201, P0206, P026B, P040B, P0420, P049D, P04DB, P0544, P0604, P1451, P1C55, P2002, P20EE, P214D, P226C, P2281, P24A5, U110E, U1421, U1A24, U3017

## Vehicles listed

- 2014 RAM 2500
- 2014 RAM 3500

## Recalls for the same vehicles and component

- [2018269](/recalls/tc/2018269.md), 2018-05-17: Engine
- [18V332000](/recalls/nhtsa/18V332000.md), 2018-05-17: ELECTRICAL SYSTEM:SOFTWARE; VEHICLE SPEED CONTROL:CRUISE CONTROL; ELECTRICAL SYSTEM:WIRING
- [2018230](/recalls/tc/2018230.md), 2018-05-03: Accessories
- [2017663](/recalls/tc/2017663.md), 2017-12-22: Accessories
- [17V824000](/recalls/nhtsa/17V824000.md), 2017-12-21: EQUIPMENT
- [2017441](/recalls/tc/2017441.md), 2017-09-13: Engine
- [17V562000](/recalls/nhtsa/17V562000.md), 2017-09-12: ENGINE AND ENGINE COOLING:ENGINE:DIESEL
- [2016214](/recalls/tc/2016214.md), 2016-05-12: Accessories
- [15V461000](/recalls/nhtsa/15V461000.md), 2015-07-23: EQUIPMENT:ELECTRICAL:RADIO/TAPE DECK/CD ETC.
- [14V635000](/recalls/nhtsa/14V635000.md), 2014-10-08: ENGINE AND ENGINE COOLING:ENGINE:DIESEL; FUEL SYSTEM, DIESEL

## Other bulletins for the same vehicles and component

- [9100923](/bulletins/11037599.md), 2026-09-30, Service bulletin: ELECTRICAL SYSTEM; ENGINE. AIR CLEANER \- NONE Instruction to Dealers while ordering the PN\# 68137142AD. 1. If the Air Cleaner Assembly is functional and only the MAF Sensor has failed, the dealer should order and replace only the MAF Sensor\(68002441AC\). 2. If the Air Cleaner Assembly has failed and the MAF Sensor remains functional, the dealer should order the new Air Cleaner Assembly PN\(68137142AD\) and reuse the existing MAF Sensor\(68002441AC\) from the failed assembly. 3. If both the Air Cleaner Assembly and the MAF Sensor have failed, the dealer should order both the New Air Cleaner Assembly\(68137142AD\) and the MAF Sensor\(68002441AC\) as separate service parts.
- [112906](/bulletins/11034373.md), 2026-07-02, Service bulletin: ENGINE. BEARING \- CRANKSHAFT THRUST and KIT
- [112906](/bulletins/11034337.md), 2026-07-02, Service bulletin: ENGINE. BEARING \- CRANKSHAFT THRUST and KIT
- [S1623000028 Rev. K](/bulletins/11033975.md), 2026-06-18, Service bulletin: ELECTRICAL SYSTEM; STRUCTURE:BODY. Outside Power Fold Rearview Mirror Noise Or Loose At Pivot. Mirror Contacts Door Window Glass In The Folded Position.
- [S1623000028 REV.I](/bulletins/11033308.md), 2026-06-03, Service bulletin: ELECTRICAL SYSTEM; STRUCTURE:BODY. Outside Power Fold Rearview Mirror Noise Or Loose At Pivot. Mirror Contacts Door Window Glass In The Folded Position.
- [110603](/bulletins/11030026.md), 2026-03-13, Service bulletin: ELECTRICAL SYSTEM. SPEAKER \- NONE
- [110604](/bulletins/11030025.md), 2026-03-13, Service bulletin: ELECTRICAL SYSTEM. SPEAKER \- NONE
- [9100735](/bulletins/11026651.md), 2025-12-17, Service bulletin: ELECTRICAL SYSTEM. Verify "Z" part number availability. Order a "Z" part number for all Exchange Orders: Warranty, Mopar, Customer pay and Service contract. Order"68" part number for New unsold units only
- [S2503000004](/bulletins/11025513.md), 2025-11-13, Service bulletin: ELECTRICAL SYSTEM. Front Axle Disconnect \(FAD\) Electrical Connector Design Change On Replacement Axle Assemblies.
- [106241](/bulletins/11021585.md), 2025-08-06, Service bulletin: ELECTRICAL SYSTEM. LAMP \- DOME

JSON: [/v1/bulletins/10139778](/v1/bulletins/10139778)

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