NUMBER:
GROUP:
DATE:

18-018-14
Vehicle Performance
March 18, 2014

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 Chrysler Group LLC.

THIS SERVICE BULLETIN IS ALSO BEING RELEASED AS RAPID RESPONSE
TRANSMITTAL (RRT) 14-028. ALL APPLICABLE SOLD AND UN-SOLD RRT VIN's
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.
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 LEVEL MUST BE AT RELEASE 14.03 OR HIGHER TO
PERFORM THIS PROCEDURE.
SUBJECT:
Flash: MIL Illumination - Diagnostic and System Improvements
OVERVIEW:
This bulletin involves selectively erasing and reprogramming the Powertrain Control
Module (PCM) with new software.
MODELS:
2014

(WK)

Grand Cherokee

NOTE: This bulletin applies to WK vehicles equipped with a 3.0L engine (sales code
EXF) and 50 States Emissions (sales code NAS) built on or before 2/15/2014
(MDH 0215XX).
SYMPTOM/CONDITION:
Some customers may experience a Malfunction Indicator Lamp (MIL) illumination. Upon
further investigation the Technician may find that any of the following Diagnostic Trouble
Code(s) may have been set:
•
•
•
•
•

P0073 - AMBIENT AIR TEMPERATURE SENSOR CIRCUIT HIGH
P0088 - FUEL RAIL PRESSURE TOO HIGH
P016F - CLOSED LOOP FUEL PRESSURE CONTROL AT LIMIT - PRESSURE
TOO LOW
P0420 - CATALYST EFFICIENCY (BANK 1)
P0426 - CATALYST TEMPERATURE SENSOR CIRCUIT PERFORMANCE (BANK

18-018-14
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•

-2-

1 SENSOR 1)
P05F8 - REDUCTANT HEATER CONTROL MODULE PERFORMANCE
P061B - INTERNAL CONTROL MODULE TORQUE CALCULATION
PERFORMANCE
P062B - INTERNAL CONTROL MODULE FUEL INJECTOR CONTROL CIRCUIT
PERFORMANCE
P200A - INTAKE MANIFOLD RUNNER PERFORMANCE - BANK 1
P200B - INTAKE MANIFOLD RUNNER PERFORMANCE - BANK 2
P20BA - REDUCTANT HEATER 1 CONTROL CIRCUIT PERFORMANCE
P20EE - SCR NOX CATALYST EFFICIENCY BELOW THRESHOLD BANK 1
P203E - REDUCTANT LEVEL SENSOR 1 CIRCUIT INTERMITTENT/ERRATIC
P2080 - EXHAUST GAS TEMPERATURE SENSOR CIRCUIT PERFORMANCE
P2084 - EXHAUST GAS TEMPERATURE SENSOR CIRCUIT PERFORMANCE BANK 1 SENSOR 2
P242B - EXHAUST GAS TEMPERATURE SENSOR CIRCUIT PERFORMANCE BANK1 SENSOR 3
P2463 - DIESEL PARTICULATE FILTER - SOOT ACCUMULATION
P24C2 - EXHAUST GAS TEMPERATURE MEASUREMENT SYSTEM - MULTIPLE
SENSOR CORRELATION BANK 1
P24F2 - EGR TEMPERATURE/CHARGE AIR COOLER TEMPERATURE
CORRELATION
U12A3 - LOST COMMUNICATION WITH PM SENSOR

DIAGNOSIS:
Using a Scan Tool (wiTECH) with the appropriate Diagnostic Procedures available in
TechCONNECT, verify all engine systems are functioning as designed. If DTC's other than
the one listed above are present record them on the repair order and repair as necessary
before proceeding further with this bulletin.
If the vehicle is included on the RRT VIN list or if the technician finds the DTC, perform the
Repair Procedure.
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.
1. Reprogram the PCM with the latest software. Help using the wiTECH Diagnostic
Application for flashing control modules is available through the wiTECH Diagnostic
Application. For instructions select the “HELP” tab on upper portion of the wiTECH
window, then “HELP CONTENTS”. This will open the Welcome to wiTECH Help
screen where help topics can be selected.
2. After PCM reprogramming, the following must be performed:
a. Clear any DTC's that may have been set in other modules due to reprogramming.
The wiTECH application will automatically present all DTCs after the flash and allow
the tech to clear them.
b. Perform a Reset of SCR Long Term Adaptation Factor. From PCM View select
Misc. Functions > double click “Reset of SCR Long Term Adaptation Factor” > Click
Continue.

-3-

18-018-14

POLICY:
Reimbursable within the provisions of the warranty.
TIME ALLOWANCE:
Labor Operation
No:
18-19-04-AC

Description
Module, Powertrain Control (PCM) Reprogram (1 - Semi-Skilled)

Skill Category
8 - Engine
Performance

Amount
0.3 Hrs.

NOTE: The expected completion time for the flash download portion of this
procedure is approximately 6 minutes. Actual flash download times may be
affected by vehicle connection and network capabilities.
FAILURE CODE:
FM

Flash Module