# Service bulletin 18\-042\-15

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: 10159902
- Published by NHTSA: 2019\-05\-20
- Manufacturer's number: 18\-042\-15
- Manufacturer's date: 2015\-11\-04
- NHTSA component: ELECTRICAL SYSTEM; POWER TRAIN; EQUIPMENT; ENGINE

## NHTSA's summary

Flash: 6.4L Diagnostic And System Improvements This bulletin involves selectively erasing and reprogramming the Powertrain Control Module \(PCM\) with new software. 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: ? P0300 \- Multiple Cylinder Misfire, cold Idle misfire \(DJ,D2 or DD vehicles only\). ? P030X \- Cylinder Misfire \(any cylinder\) \(Additional improvements over the last software update\). ? P04D1 \- Cooled EGR Temperature Sensor Circuit High. ? P04D0 \- Cooled EGR Temperature Sensor Circuit Low. ? P2504 \- Charging System Output High. ? P0441 \- Evap Purge System Performance. ? P2066 \- Fuel Level Sensor 2 Performance. ? P0401 \- EGR System Performance \(DJ/D2 vehicles only\). ? P2096 \- Downstream Fuel Trim System 1 Lean \(DD/DP vehicles only\). ? P2098 \- Downstream Fuel Trim System 2 Lean \(DD/DP vehicles only\). ? P0740 \- TCC Out of Range \(DD vehicles equipped with a DFP automatic transmission\). Customers may also experience any of the following conditions: ? Slightly elevated idle speed noticed during engine warm\-up when in Reverse or Drive and when operating in cold ambient temperatures. ? PTO mobile mode cancels or deactivates when vehicle comes to a stop \(DD/DP vehicles only\). ? Engine cycles in and out of MDS mode too often when operating in PTO stationary mode \(DD/DP vehicles only\). ? PTO stationary mode cancels or deactivates when PTO up\-fit equipment loads fluctuate \(DD/DP vehicles only\) The following powertrain system improvements/enhancements are also included in this software release: ? Improve Idle at high altitudes \(DJ,D2 or DD vehicles only\). ? Spark knock on vehicle with low octane fuel \(DJ,D2 or DD vehicles only\). ? Operator idle speed control enhancements. ? Raise 4x4 low range minimum engine speed from 725 to 800 RPM. ? Raise minimum engine speed to allow MDS activa

## The document

- [NHTSA's copy of the document (PDF)](https://static.nhtsa.gov/odi/tsbs/2015/MC-10159902-0001.pdf)
- [If that address does not open, try this one](https://static.nhtsa.gov/odi/tsbs/2015/MC-10159902-9999.pdf)

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

## Components

Electrical system, Engine, Equipment and accessories, Transmission and driveline

## Trouble codes named

P0300, P0401, P0441, P04D0, P04D1, P0740, P2066, P2096, P2098, P2504

## Vehicles listed

- 2014 RAM 2500
- 2014 RAM 3500
- 2014 RAM 4500
- 2014 RAM 5500

## 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
- [2017659](/recalls/tc/2017659.md), 2017-12-21: Powertrain
- [17V824000](/recalls/nhtsa/17V824000.md), 2017-12-21: EQUIPMENT
- [17V821000](/recalls/nhtsa/17V821000.md), 2017-12-20: POWER TRAIN:AUTOMATIC TRANSMISSION:LEVER AND LINKAGE:COLUMN SHIFT
- [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

## 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/10159902](/v1/bulletins/10159902)

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