21-003-13

NUMBER:
GROUP:
DATE:
21-003-13
Transmission and
Transfer Case
May 11, 2013
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 13.03 OR HIGHER TO
PERFORM THIS PROCEDURE.
SUBJECT:
Flash: Drivetrain Control Module (DCTM) - Transfer Case Operational Enhancements
OVERVIEW:
This bulletin involves flashing the Drivetrain Control Module (DCTM)
MODELS:
2011 - 2013
WD
Durango
2011 - 2013
WK
Grand Cherokee
NOTE: This bulletin applies to vehicles equipped with the QUADRA-TRAC II 4WD
System or Two Speed On Demand Transfer Case (Sales Code DKA) and the
following:
• 230MM Rear Axle (Sales Code DR1) and Electronic Limited Slip
Differential (Sales Code DSF)
• 230MM Rear Axle (Sales Code DR1) without Electronic Limited Slip
Differential built after May 1, 2011 (MDH 0501XX).
• 195MM Rear Axle (Sales Code DRH) (all 3.6L engine equipped (Sales
Code ERB) built after May 1, 2011 (MDH 0501XX).
SYMPTOM/CONDITION:
Owners may indicate that they have experienced one or more of the following symptoms:
1. A driveline bump is felt during acceleration at approximately 10 mph (16 kph).
2. The SERV 4WD message appears and the vehicle shifts from 4WD to 2WD.
3. Binding of the front driveline while turning on steep grades at speeds around 3 - 5 mph
(5 - 8 kph).
DIAGNOSIS:
If the customer describes any of the symptoms above, perform the Repair Procedure.
REPAIR PROCEDURE:
21-003-13
-2-
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 DCTM with the latest software.
2. After DTCM 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:
18-19-07-9B
Description
Module, Drivetrain Control - Reprogram (Semi
Level = 1)
FAILURE CODE:
FM
Flash Module
Amount
0.2 Hrs.