18-043-15

NUMBER:
GROUP:
DATE:
18-043-15
Vehicle Performance
May 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.
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 15.04 OR HIGHER TO PERFORM THIS
PROCEDURE.
SUBJECT:
Flash: 2.4L Powertrain Diagnostic And System Enhancements
OVERVIEW:
This bulletin involves reprogramming the Engine Control Module (ECM) with the latest
available software.
MODELS:
2015
(BU)
Jeep Renegade
NOTE: This bulletin applies to vehicles built on or before May 6, 2015 (MDH 0506XX)
equipped with a 2.4L engine (Sales Code ED6) and 948TE transmission
(Sales Code DFH).
SYMPTOM/CONDITION:
A small number of customers may experience a Malfunction Indicator Lamp (MIL)
illumination. Upon further investigation the technician may find Diagnostic Trouble Code
(DTC) P050D - Cold Start Rough Idle stored in the ECM memory.
In addition, customers may experience one or more of the following concerns:
•
•
•
RPM flare at cold start.
Less than desired idle performance.
Cold engine RPM surge with gear engagement.
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DIAGNOSIS:
Using a Scan Tool (wiTECH) with the appropriate Diagnostic Procedures available in
TechCONNECT, verify all engine 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 the customer describes the symptom/condition listed above or if the technician finds the
DTC, perform the Repair Procedure.
REPAIR PROCEDURE:
CAUTION: The Transmission Control Module (TCM) must be updated to the latest
available software at the conclusion of this repair procedure. Refer to all
applicable published service bulletins for detailed repair procedures and
labor times regarding updating the TCM software.
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 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.
2. 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.
3. Verify the TCM is programmed with the latest available software. Refer to all
applicable published service bulletins for detailed repair procedures and labor times
regarding updating the TCM software.
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POLICY:
Reimbursable within the provisions of the warranty.
TIME ALLOWANCE:
Labor Operation
No:
18-19-06-CW
Description
Module, Engine Control (ECM) Reprogram
(0 - Introduction)
Skill Category
8 - Engine
Performance
Amount
0.2 Hrs.
NOTE: The expected completion time for the flash download portion of this
procedure is approximately 2 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 the dealer found updated software to correct that issue, use failure code
CC, for all other use failure code RF.
•
•
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