WenmarOpen by Wenmar Pro

Service bulletin 18-015-17 REV. A

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 id10140028
Published by NHTSA2018-06-11
Manufacturer's number18-015-17 REV. A
Manufacturer's date2017-03-10
NHTSA componentENGINE AND ENGINE COOLING:ENGINE:DIESEL; POWER TRAIN

NHTSA's summary

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. The following Diagnostic Trouble Codes (DTCs) have been changed from a one trip fault to a two trip fault: P0421 - Catalyst 1 Efficiency Below Threshold Bank 1. P2280 - Air Flow Restriction / Leak Between Air Cleaner And MAF. P203C - (Diesel Exhaust Fluid) Reductant Level Sensor Circuit Low. P208D - (Diesel Exhaust Fluid) Reductant Pump Control Circuit High.A small number of customers may experience a Malfunction Indicator Lamp (MIL) illumination. Upon further investigation a technician may find the following DTCs set in the PCM memory: P1451 - Diesel Particulate Filter System Performance. P229E - NOx Sensor Circuit - Bank 1 Sensor 2. P0128 - Thermostat Rationality Improvements. P2281 - Air Leak Between MAF and Throttle Body. P218F - Reductant No Flow Detected. P0218 - Transmission High Temperature Operation Activated (68RFE Only). P0868 - Line Pressure Low, MIL Action (68RFE Only). U110E - Lost Ambient Temperature Message. P205E - (Diesel Exhaust Fluid) Reductant Tank Temperature Sensor Circuit Intermittent (setting when the block heater is plugged in).In addition to addressing the above DTCs, the following powertrain system improvements/enhancements are also included in this software release: Improvement to correct engine feels like low or reduced power. Engine Noise Improvements. Engine Hesitation Improvement. Improved Engine Fuel Economy. Reduction in engine noise during regeneration at idle. 68RFE Transmission Overall Shift Quality Improvements. Test results fix for partial range misfire (68RFE Only). Ambient Air Temperature Improvements. Stationary Desoot with wiTECH Fix. OBD Misfire Monitoring Improvement (68RFE Only).

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

Engine, Transmission and driveline

Trouble codes named

P0128, P0218, P0421, P0868, P1451, P203C, P205E, P208D, P218F, P2280, P2281, P229E, U110E

Vehicles listed
RAM 25002016
RAM 35002016

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

Recalls for the same vehicles and component
20182692018-05-17. Engine
20176592017-12-21. Powertrain
17V8210002017-12-20. POWER TRAIN:AUTOMATIC TRANSMISSION:LEVER AND LINKAGE:COLUMN SHIFT
20174412017-09-13. Engine
17V5620002017-09-12. ENGINE AND ENGINE COOLING:ENGINE:DIESEL
16V4950002016-07-01. POWER TRAIN:TRANSFER CASE (4-WHEEL DRIVE)
20163372016-06-29. Powertrain
15V5920002015-09-23. ELECTRICAL SYSTEM:IGNITION:MODULE; ENGINE AND ENGINE COOLING:ENGINE

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
91009232026-09-30. Service bulletin. 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.
1129062026-07-02. Service bulletin. BEARING - CRANKSHAFT THRUST and KIT
1129062026-07-02. Service bulletin. BEARING - CRANKSHAFT THRUST and KIT
1023072025-01-06. Service bulletin. GEAR - REACTION SUN
1023872025-01-04. Service bulletin. SEAL - OUTPUT SHAFT
1023892025-01-04. Service bulletin. SEAL - OUTPUT SHAFT
1012322024-11-07. Service bulletin. Plate - Planetary
67A Rev 4 Combo2024-07-02. Service bulletin. Emission Recall 67A D Truck Engine Calibration
67A Rev 3 Combo2024-06-28. Service bulletin. EMISSION RECALL 67A D Truck Engine Calibration
S1625000004 REV.A2024-06-05. Service bulletin. On Board Diagnosis (OBD) Monitor Readiness Information