18-070-14

NUMBER:
GROUP:
DATE:
18-070-14
Vehicle Performance
November 27, 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 15.02 OR HIGHER TO PERFORM THIS
PROCEDURE.
SUBJECT:
Flash: MIL Illumination, P219A, P050B And Cold Start Improvements
OVERVIEW:
This bulletin involves selectively erasing and reprogramming the Powertrain Control
Module (PCM) with new software.
MODELS:
2015
(MK)
Jeep Compass/Patriot
NOTE: This bulletin applies to vehicles built on or before November 3, 2014 (MDH
1103XX).
SYMPTOM/CONDITION:
Some customers may see erroneous illuminated malfunction indicator lamps (MIL) and
have a hard start cold condition.
•
•
P219A Bank 1 Air Fuel Ratio Imbalance
P050B Cold Start Ignition Timing Performance
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.
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.
18-070-14
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NOTE: If this flash process is interrupted/aborted, the flash should be restarted.
1. Reprogram the PCM with the latest 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.
NOTE: After PCM reprogramming, the following must be performed:
2. Clear any DTCs that may have been set in all 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-AX
Description
Module, Powertrain Control (PCM) Reprogram (0 - Introductory)
Skill Category
8 - Engine
Performance
Amount
0.2 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