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18-028-16 REV. A
Vehicle Performance
August 19, 2016

This bulletin is supplied as technical information only and is not an authorization for repair. No part of this publication may be reproduced, stored in a retrieval system,
or transmitted, in any form or by any means, electronic, mechanical, photocopying, or otherwise, without written permission of FCA US LLC.

THIS BULLETIN SUPERSEDES SERVICE BULLETIN 18-028-16 DATED MARCH 19,
2016 WHICH SHOULD BE REMOVED FROM YOUR FILES. ALL REVISIONS ARE
HIGHLIGHTED WITH **ASTERISKS** AND INCLUDES AN ADDITIONAL DIAGNOSTIC
TROUBLE CODES, SOFTWARE ENHANCEMENTS AND NEW LOPS.
THIS SERVICE BULLETIN IS ALSO BEING RELEASED AS RAPID RESPONSE
TRANSMITTAL (RRT) 13-083. ALL APPLICABLE SOLD AND UN-SOLD RRT VINs
HAVE BEEN LOADED. TO VERIFY THAT THIS RRT SERVICE ACTION IS
APPLICABLE TO THE VEHICLE, USE VIP OR PERFORM A VIN SEARCH IN
TECHCONNECT. ALL REPAIRS ARE REIMBURSABLE WITHIN THE PROVISIONS OF
WARRANTY.
FOR HELP WITH USING wiTECH FOR ECU FLASH REPROGRAMMING, CLICK ON
THE APPLICATION’S “HELP” TAB.
THE wiTECH SOFTWARE IS REQUIRED TO BE AT THE LATEST RELEASE BEFORE
PERFORMING THIS PROCEDURE.
SUBJECT:
Flash: 6.7L Diagnostic And System Improvements
OVERVIEW:
This bulletin involves selectively erasing and reprogramming the Engine Control Module
(ECM) with new software.
MODELS:
2014

(DD)

Ram 3500 Cab Chassis

2014

(DP)

Ram 4500/5500 Cab Chassis

NOTE: This bulletin applies to vehicles equipped with a 6.7L Cummins Diesel engine
(Sales Code ETK).

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SYMPTOM/CONDITION:
Several software improvements are available for vehicles equipped with a Cummins 6.7L
turbo Diesel.
NOTE: 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 Malfunction Indicator Lamp (MIL) illumination when no defect is
present for the following Diagnostic Trouble Codes (DTCs). These faults have been
changed from a one trip fault to a two trip fault:
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P0201 - P0206 - Fuel Injector X Circuit/Open Fault Codes.
P049D - Exhaust Gas Recirculation (EGR) Control Position Exceeding Learning
Limit.
Improvements to prevent or reduce Malfunction Indicator Lamp (MIL) illumination
when no defect is present for:
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**P229E - NOx Sensor Circuit - Bank 1 Sensor 2 (For non-ammonia delete systems
only).
P229F - Aftertreatment NOx Sensor Circuit Performance - Bank 1 Sensor 2 (For
non-ammonia delete systems only).
P22A7 - NOx Sensor Heater Circuit Performance - Bank 1 Sensor 2 (For
non-ammonia delete systems only).
U059F - Invalid Data Received From NOx Sensor "B" (For non-ammonia delete
systems only).
P2459 - Diesel Particulate Filter Regeneration Too Frequent.
P218F - Reductant No Flow Detected.
P242F - Diesel Particulate Filter Restriction - Ash Accumulation.**
P1C55 - NOx Sensor Intermittent - Bank 1 Sensor 1 (For ammonia delete systems
only).
P205E - (Diesel Exhaust Fluid) Reductant Tank Temperature Sensor Circuit
Intermittent (setting when the block heater is plugged in).
P20E8 - (Diesel Exhaust Fluid) Reductant Pressure Too Low.
U110E - Lost Ambient Temperature Message.
U3017 - Control Module Timer/Clock Performance.
P0087 - Fuel Rail Pressure Too Low.
P0544 - Exhaust Gas Temperature Sensor Circuit - Sensor 1/1.
P2281 - Air Leak Between MAF And Throttle Body.
P0128 - Thermostat Rationality In low ambient temperatures.
U1421 - Implausible Ignition Key Off Time Received.
P202E - Diesel Exhaust Fluid (DEF) Reductant Injector Performance.
P20EE - SCR NOX Catalyst Efficiency Below Threshold - Bank 1.
P2002 - Diesel Particulate Filter Efficiency Below Threshold.
P0604 - Internal control Module RAM Error. This DTC may be caused by enabling
the remote throttle feature via the EVIC, and it will be accompanied by a “service
electronic throttle control” message in the EVIC.

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18-028-16 REV. A

Other Enhancements:
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**Ambient Air Temperature (AAT) improvements.
DEF Dosing Improvements In Cold Ambient Temperatures.**
Selective Catalytic Reduction (SCR) efficiency scan tool test improvement.
Urea system calibration changes.
Fuel filter minder calibration changes.
Cruise control system improvements.
Improvements in exhaust brake switch operation.
Charging system improvements for dual alternator applications.
Various wiTECH data and system test additions and improvements.
OBD template changes for P2453.
Dual fuel tank component update.
Inducement timer reset (Feature enable in wiTECH).
PTO denied status message update.
PTO horn request sent to Body Control Unit (BCU).
Wait To Start (WTS) bulb check timing improvements (1 second).
Frozen Charge Air Cooler (CAC) diagnostic improvement.

DIAGNOSIS:
Using a Scan Tool (wiTECH) with the appropriate Diagnostic Procedures available in
TechCONNECT, verify all related systems are functioning as designed. If DTCs or
symptom conditions, other than the ones listed above are present, record the issues on the
repair order and repair as necessary before proceeding further with this bulletin.
If a customer’s VIN is listed in VIP or your RRT VIN list, perform the repair. For all other
customers that describe the symptom/condition listed above or if the technician finds the
DTC, perform the Repair Procedure.
REPAIR PROCEDURE:
NOTE: 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.
NOTE: If DTC U1601 is present, the ECM P/N did not update, or the engine did not
start after the flash, then the flash may have been unsuccessful. Restart the
flash update.
NOTE: Install a battery charger to ensure battery voltage does not drop below 13.2
volts. Do not allow the charging voltage to climb above 13.5 volts during the
flash process.
NOTE: If this flash process is interrupted/aborted, the flash should be restarted.
1. Reprogram the ECM with the latest software. Detailed instructions for flashing control
modules using the wiTECH Diagnostic Application are available by selecting the
application’s “HELP” tab.
2. After reprogramming, turn the ignition off to power down the ECM. The key must
remain off for a minimum of 75 seconds.

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3. Clear all DTCs that may have been set in any module due to reprogramming. The
wiTECH application will automatically present all DTCs after the flash and allows them
to be cleared.
NOTE: If DTCs U05A5 - Implausible Data Received From Ammonia Sensor or U12A4
- Lost Communication With Ammonia Sensor are set after the repair then the
PCM has the incorrect calibration installed. Reprogram the PCM with the
correct calibration.
4. Perform the PCM Configuration routine in wiTECH located in the PCM “Misc
Functions” menu tab.
5. Verify the Dosing Control Unit (DCU) software is up to date in accordance with the
service procedures and labor times outlined in all applicable published service
bulletins.
POLICY:
Reimbursable within the provisions of the warranty.
TIME ALLOWANCE:
Labor Operation
No:

Description

Skill Category

Amount

**18-19-04-FF

Module, Engine Control (ECM) Reprogram, Without Ammonia
Sensor, (M/T and Aisin)
(1 - Semi-Skilled)

10 - DIESEL

0.4 Hrs.

18-19-04-FG

Module, Engine Control (ECM) Reprogram, With Ammonia
Sensor, (M/T and Aisin)
(1 - Semi-Skilled)

10 - DIESEL

0.4 Hrs.**

NOTE: The expected completion time for the flash download portion of this
procedure is approximately 14 minutes. Actual flash download times may be
affected by vehicle connection and network capabilities.
FAILURE CODE:
The dealer must choose which failure code to use. If the customer came in with an
issue and if the dealer finds a software update to correct that issue, use failure code
CC, for all other use failure code RF.
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If the customer’s concern matches the SYMPTOM/CONDITION identified in the
Service Bulletin, failure code CC is to be used.
If an available flash is completed while addressing a different customer concern,
failure code RF is to be used.

CC

Customer Concern

RF

Routine Flash