1805114

NUMBER:
GROUP:
DATE:
18-051-14 REV. A
Vehicle Performance
December 04, 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 BULLETIN SUPERSEDES SERVICE BULLETIN 18-051-14, DATED OCTOBER
01, 2014, WHICH SHOULD BE REMOVED FROM YOUR FILES. ALL REVISIONS ARE
HIGHLIGHTED WITH **ASTERISKS** AND INCLUDE AND INCLUDES THE ADDITION
OF MY12 AND MY13 VEHICLES.
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 15.01 OR HIGHER TO
PERFORM THIS PROCEDURE.
SUBJECT:
Flash: J8 Mining Vehicle Speed Limiting
OVERVIEW:
This bulletin involves selectively erasing and reprogramming the Powertrain Control
Module (PCM) with new software.
MODELS:
**2012-2014**
(J8)
Jeep Wrangler
SYMPTOM/CONDITION:
A small number of J8 Vehicles built as over-the-road units for non-reg BUX markets and
sold to US-based mining operations with the intent of re-programming the diesel PCM to
limit vehicle-speed in the mining environment. The discretion of which mining flash is to be
used is left to the discretion of the operator.
DIAGNOSIS:
Using a Scan Tool (wiTECH) with the appropriate Diagnostic Procedures available in
TechCONNECT, verify all engine systems are functioning as designed. If DTCs 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.
18-051-14 REV. A
-2-
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: 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:
18-19-04-9N
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:
FM
Flash Module