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18-021-15 REV. C
Vehicle Performance
June 09, 2015

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 18-021-15 REV. B, DATED May
28, 2015, WHICH SHOULD BE REMOVED FROM YOUR FILES. ALL REVISIONS ARE
HIGHLIGHTED WITH **ASTERISKS** AND INCLUDE ADDITIONAL SYMPTOM
ENHANCEMENTS AND NEW LABOR OPS.
THIS SERVICE BULLETIN IS ALSO BEING RELEASED AS RAPID RESPONSE
TRANSMITTAL (RRT) 14-108. ALL APPLICABLE UN-SOLD RRT VIN's HAVE BEEN
LOADED. TO VERIFY THAT THIS RRT SERVICE ACTION IS APPLICABLE TO THE
UN-SOLD VEHICLE, USE VIP OR PERFORM A VIN SEARCH IN TECHCONNECT. FOR
VEHICLES NOT INCLUDED IN THE RRT VIN LIST, APPLICATION OF THIS SERVICE
BULLETIN TO SOLD UNITS IS BASED UPON THE CUSTOMER EXPERIENCING THE
SYMPTOM/CONDITIONS. ALL REPAIRS ARE REIMBURSABLE WITHIN THE
PROVISIONS OF WARRANTY.
HELP USING THE wiTECH DIAGNOSTIC APPLICATION FOR FLASHING AN ECU IS
AVAILABLE BY SELECTING “HELP” THEN “HELP CONTENTS” AT THE TOP OF
THE wiTECH DIAGNOSTIC APPLICATION WINDOW.
THE wiTECH SOFTWARE IS REQUIRED TO BE AT THE LATEST RELEASE BEFORE
PERFORMING THIS PROCEDURE.
SUBJECT:
Flash: 3.0L Powertrain Diagnostic And System Enhancements
OVERVIEW:
This bulletin involves reprogramming the Powertrain Control Module (PCM) with the latest
available software. It also involves replacement of the Oxygen (O2) Sensor and cleaning
or replacement of the Exhaust Gas Temperature (EGT) Sensor 1/2 if necessary depending
on Diagnostic Trouble Codes (DTC) that may have set.
MODELS:
2014

(DS)

RAM 1500 Pickup

NOTE: This bulletin applies to vehicles equipped with a 3.0L diesel engine (sales
code EXF).

18-021-15 REV. C

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SYMPTOM/CONDITION:
A small number of customers may experience an intermittent engine shudder or vibration
which may not set a Diagnostic Trouble Code (DTC). In addition other customers may
experience a Malfunction Indicator Lamp (MIL) illumination upon which the technician may
find one or more of the following DTCs have been set:
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**P20C2-00 - Reductant Heater 3 Control Circuit Performance.**
**P204F-00 - Reductant System Performance.**
**P20E9-00 - Reductant Pressure Too High.**
**P249C-00 - Excessive Time To Enter Closed Loop Reductant Injection Timing
Control.**
**P1288-00 - NOX Sensor 1/2 Zero Offset Too High.**
**P2002-00 - Diesel Particulate Filter Efficiency Below Threshold.**
**P2299-00 - Brake Pedal Position / Accelerator Pedal Position Incompatible.**
**P241D-00 - Scr Inducement - Forced Engine Shutdown.**
P016A-00 - Excessive Time To Enter Closed Loop Air/Fuel Ratio Control.
P2459-00 - Diesel Particulate Filter Regeneration Frequency.
P0133-00 - O2 Sensor 1/1 Slow Response.
P2084-00 - Exhaust Gas Temperature Sensor Circuit Performance - (1/2).
P0171-00 - Fuel System 1/1 Lean.
P0426-00 - Catalyst Temperature Sensor Circuit Performance (1/1).
P0045-00 - Turbocharger Boost Control Circuit/Open.
P0087-00 - Fuel Rail Pressure Too Low.
P009A-00 - Intake Air Temperature/Ambient Air Temperature Correlation.
P0128-00 - Thermostat Rationality.
P0234-00 - Turbocharger Overboost Condition.
P0420-00 - Catalyst Efficiency (Bank 1).
P05F8-00 - Reductant Heater Control Module Performance.
P050E-00 - Cold Start Engine Exhaust Temperature Too Low.
P200A-00 - Intake Manifold Runner Performance - (Bank 1).
P200B-00 - Intake Manifold Runner Performance - (Bank 2).
P202E-00 - Reductant Injection Valve Circuit Performance.
P2080-00 - Exhaust Gas Temperature Sensor Circuit Performance.
P20BA-00 - Reductant Heater 1 Control Circuit Performance.
P20BE-00 - Reductant Pressure Line Heater Control Circuit Performance.
P20C2-00 - Reductant Heater 3 Control Circuit Performance.
P225C-00 - NOX Sensor 1/1 Performance - Signal Stuck High.
P225D-00 - NOX Sensor 1/1 Performance - Signal Stuck Low.
P2453-00 - Diesel Particulate Filter Differential Pressure Sensor Circuit
Performance.
P24C2-00 - Exhaust Gas Temperature Measurement System - Multiple Sensor
Correlation (Bank 1).
P24F2-00 - EGR Temperature/Charge Air Cooler Temperature Correlation.
P2564-00 - Turbocharger Position Sensor Circuit Low.
P2565-00 - Turbocharger Position Sensor Circuit High.
U029D-00 - Lost Communication With NOX Sensor Module "A".
U029E-00 - Lost Communication With NOX Sensor Module "B".

The following powertrain system improvements/enhancements are also included in this
software release.
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Enhancements to improve A/C compressor relay duty cycle operation to prevent
ignition off battery draw.
Powertrain system improvements to enable EGR cleaning routine.

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18-021-15 REV. C

DIAGNOSIS:
Using a Scan Tool (wiTECH) with the appropriate Diagnostic Procedures available in
TechCONNECT, verify all vehicle 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 or if a technician finds any of the DTCs
listed above, perform the Repair Procedure.
PARTS REQUIRED:
Qty.

Part No.

Description

1 (AR)

68171190AA

Sensor, Oxygen

1 (AR)

68231738AA

Sensor, Exhaust Gas Temperature (EGT)

REPAIR PROCEDURE:
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.
CAUTION: Do not interrupt the software update process in any way once it has
begun. It may cause permanent damage to the PCM which will require
replacement.
1. Using wiTECH, check for any codes setting in the PCM and record them on the repair
order. If necessary, perform a vehicle scan report and save it for your records.
2. Reprogram the PCM with the latest available software. Detailed instructions for
flashing control modules using the wiTECH Diagnostic Application are available by
selecting the “HELP” tab on the upper portion of the wiTECH window, then “HELP
CONTENTS.” This will open the Welcome to wiTECH Help screen where help topics
can be selected.
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 allow them
to be cleared.
4. Under the PCM “System Tests” perform the “SCR DEF Tank Fluid Level Reset”
procedure.
5. Turn the ignition off for 35 seconds to complete the flash. Proceed to Step #6.
6. With the ignition key off, test for voltage on fuse F62 (10 amp red) located in the under
hood Power Distribution Center (PDC) using a volt meter connected to ground. Was
12 volts measured at the fuse with the ignition off?
a. Yes>>>Further diagnosis and repair is required. Refer to all applicable published
TSBs or service information in DealerCONNECT/TechCONNECT regarding ignition
off battery draw. Proceed to Step #7.
b. No>>> Proceed to Step #7.

18-021-15 REV. C

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7. Refer back to the codes recorded in Step #1. Were DTCs, P0171-00 - Fuel System 1/1
Lean and/or P0133-00 - O2 Sensor 1/1 Slow Response found setting in the PCM
memory?
a. Yes>>> Proceed to Step #8.
b. No>>> The bulletin is now complete. No further action is required. Use Labor Op
18-19-04-B3 to close out the RRT portion of this service action.
8. Visually inspect all Air Induction and Charge Air Cooler (CAC) connections for proper
installation and torque. Repair as necessary and proceed to Step #9.
NOTE: Care must be taken not to drop or strike the new O2 sensor during
installation. If dropped, the sensor must be discarded and another sensor
installed.
9. Replace the O2 sensor. Refer to detailed repair procedures available in
DealerCONNECT> TechCONNECT> Service Info Section 14 - Fuel System> Fuel
Injection, Diesel> Sensor, Oxygen> Removal/Installation. Proceed to Step #10.
10. Remove the EGT Sensor 1/2 located in the inlet of the Diesel Particulate Filter
(DPF)/Diesel Oxidation Catalyst (DOC) assembly. Refer to detailed removal
procedures available in DealerCONNECT> TechCONNECT> Service Info Section 11 Exhaust System> Sensor, Exhaust Temperature> Removal> Exhaust Gas
Temperature Sensor 1/2.
11. Inspect the sensor body and probe for any signs of damage or excessive soot. See
(Fig. 1).

Fig. 1 EGT Sensor Bank 1 Sensor 1
1 - Excessive soot blocking sensor ports

12. Was excessive soot found on the sensor?
a. Yes>>> Proceed to Step #13.
b. No>>> Proceed to Step #14.
13. Using shop air set to a maximum of 80 psi, clean all excessive soot from the sensor
probe.

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18-021-15 REV. C

14. Using a suitable multi-meter with appropriate test probes, test the resistance between
the sensor connector terminals 1 and 2. With the sensor at room temperature, 65-75
°F (18-25 °C), the resistance should measure between 200 and 240 ohms.
15. Is the temperature sensor resistance within specifications?
a. Yes>>> Install the original EGT sensor 1/2. Refer to detailed installation procedures
available in DealerCONNECT> TechCONNECT> Service Info Section 11 - Exhaust
System> Sensor, Exhaust Temperature> Installation> Exhaust Gas Temperature
Sensor 1/2.
b. No>>> Install a new EGT sensor 1/2. Refer to detailed installation procedures
available in DealerCONNECT> TechCONNECT> Service Info Section 11 - Exhaust
System> Sensor, Exhaust Temperature> Installation> Exhaust Gas Temperature
Sensor 1/2.
16. Verify all engine systems are operating as designed. The bulletin is now complete.
POLICY:
Reimbursable within the provisions of the warranty.
TIME ALLOWANCE:
Labor Operation
No:

Description

Skill Category

Amount

18-19-04-B3

Module, Powertrain Control (PCM) Inspect Only, Software up to date.
(Includes fuse voltage check)
(2 - Skilled)

10 - Diesel

0.2 Hrs.

18-19-04-B4

Module, Powertrain Control (PCM) Inspect, Software up to date. Replace
O2 sensor, and clean or replace EGT
sensor. (Includes fuse voltage check)
(2 - Skilled)

10 - Diesel

0.8 Hrs.

**18-19-04-B7**

Module, Powertrain Control (PCM) Reprogram Only, (Includes fuse
voltage check)
(2 - Skilled)

10 - Diesel

0.4 Hrs.

**18-19-04-B8**

Module, Powertrain Control 10 - Diesel
Reprogram, Replace O2 sensor, and
clean or replace EGT sensor, (includes
fuse voltage check)
(2 - Skilled)

1.0 Hrs.

NOTE: The expected completion time for the flash download portion of this
procedure is approximately 7 minutes. Actual flash download times may be
affected by vehicle connection and network capabilities.

18-021-15 REV. C

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FAILURE CODE:
The dealer must choose which failure code to use. If the customer came in with an
issue and the dealer found updated software 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, than 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