18-035-14

NUMBER:
GROUP:
DATE:
18-035-14
Vehicle Performance
July04 , 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.
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: Surge, Shudder or Pulsation at Highway Speeds
OVERVIEW:
This bulletin involves selectively erasing and reprogramming the Powertrain Control
Module (PCM) with new software.
NOTE: This is an optional software update that should only be used in situations
where the customer is specifically complaining of the condition described
below.
MODELS:
2012 - 2013
(WK)
Grand Cherokee
2012 - 2013
(WO)
Durango
NOTE: This bulletin applies to vehicles equipped with a 5.7L engine (sales code
EZH).
SYMPTOM/CONDITION:
A small number of customers may experience a surge, shudder or pulsation type
sensation when driving on smooth road surfaces at highway speeds of 40-80 mph (64-129
km/h). Some customers may also describe the sensation similar to that of a fish bitting on
a fishing line.
18-035-14
-2-
NOTE: This is an optional software update that should only be used in situations
where the customer is specifically complaining of the above condition. There
will be two separate software options displayed on the wiTECH flash tab. The
software file released for this SB contains the verbiage "REFERENCE SB
18-035-14. THIS FLASH TO BE USED ONLY FOR SHUDDER COMPLAINTS".
The other file is the standard software that does not contain improvements
for this complaint. If for some reason the customer finds this shudder
improvement objectionable, the PCM software may be returned/reflashed to
the standard version.
If the customer complains of the above condition , perform the Repair Procedure .
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 are
present record them on the repair order and repair as necessary before proceeding further
with this bulletin .
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.
2.
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 .
After PCM reprogramming, the following must be performed: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 .
POLICY:
Reimbursable within the provisions of the warranty.
TIME ALLOWANCE:
Labor Operation
No:
18-19-06-9K
Description
Module, Powertrain Control (PCM) Reprogram (1 - Semi-Skilled)
Skill Category
8 - Engine
Performance
Amount
0.2 Hrs .
NOTE: The expected completion time for the flash download portion of this
procedure is approximately 5 minutes. Actual flash download times may be
affected by vehicle connection and network capabilities.
FAILURE CODE:
-3-
IFlash Module
18-035-14