NUMBER: 21-006-14
GROUP: Transmission and
Transfer Case
DATE: February 19, 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 SERVICE BULLETIN IS ALSO BEING RELEASED AS RAPID RESPONSE
TRANSMITTAL (RRT) 14-014. ALL APPLICABLE SOLD AND UN-SOLD RRT VIN's
HAVE BEEN LOADED. TO VERIFY THAT THIS RRT SERVICE ACTION IS
APPLICABLE TO THE VEHICLE, USE VIP OR PERFORM A VIN SEARCH IN
TECHCONNECT. ALL REPAIRS ARE REIMBURSABLE WITHIN THE PROVISIONS OF
WARRANTY.
THE wiTECH SOFTWARE LEVEL MUST BE AT RELEASE 14.02 OR HIGHER TO
PERFORM THIS PROCEDURE.
SUBJECT:
Flash: ELSD Module Enhancements
OVERVIEW:
This bulletin involves selectively erasing and reprogramming the Electronic Limited Slip
Differential (ELSD) with new software. If any of the following DTC’s are either Active or
Stored in the ELSD module’s memory, the ELSD motor will need to be replaced as well.
• C1490-00-REAR DIFFERENTIAL ACTUATOR INITIALIZATION FAILURE
• C148F-1D-REAR DIFFERENTIAL MEASURED MOTOR - CIRCUIT OUT OF
RANGE
• C1489-96-REAR DIFFERENTIAL MOTOR BRAKE - COMPONENT INTERNAL
FAILURE
MODELS:
2014 WK Grand Cherokee
NOTE: This bulletin applies to vehicles equipped with the ELSD (Sales Codes DSF)
built before September 30, 2013 (MDH 0930XX).
21-006-14 -2-
SYMPTOM/CONDITION:
The customer may indicate that their 4X4 lamp may be flashing (indicating a malfunction of
the 4X4 system).
In addition, one or more of the following Diagnostic Trouble Codes (DTC) are Active or
Stored in the ELSD control module’s memory.
• C1490-00-REAR DIFFERENTIAL ACTUATOR INITIALIZATION FAILURE
• C148F-1D-REAR DIFFERENTIAL MEASURED MOTOR - CIRCUIT OUT OF
RANGE
• C1489-96-REAR DIFFERENTIAL MOTOR BRAKE - COMPONENT INTERNAL
FAILURE
DIAGNOSIS:
Using a Scan Tool (wiTECH) with the appropriate Diagnostic Procedures available in
TechCONNECT, verify all ELSD systems are functioning as designed. If DTC's other then
the ones listed above are present, record them on the repair order and repair as necessary
before proceeding further with this bulletin.
If the customer describes the symptom, perform the Repair Procedure.
PARTS REQUIRED:
Qty. Part No. Description
AR (1) 68214628AA Motor Kit, Axle
REPAIR PROCEDURE:
1. The ELSD Actuator will require replacement if DTC C1490-00-REAR DIFFERENTIAL
ACTUATOR INITIALIZATION FAILURE, C148F-1D-REAR DIFFERENTIAL
MEASURED MOTOR - CIRCUIT OUT OF RANGE, and/or C1489-96-REAR
DIFFERENTIAL MOTOR BRAKE - COMPONENT INTERNAL FAILURE is either
stored or active in the ELSD module’s memory. Were one or more of the previous
DTC’s either Active or Stored in the ELSD Module’s memory?
a. YES>>>Proceed to the next Step.
b. NO>>>Proceed to Step #3.
2. Replace the ELSD actuator (p/n 68214628AA). Refer to
DealerCONNECT>Service>TechCONNECT>Service Info>03 Differential and
Driveline>Rear Axle - 230 RIA>MOTOR, Electronic Limited
slip>Differential>Removal/Installation for additional information.
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.
3. Reprogram the ELSD Module 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.
-3- 21-006-14
4. Verify there are no Diagnostic Trouble Codes (DTC) stored in the ELSD modules
memory. Then, using the wiTECH, perform the ELSD “Quicklearn” procedure.
Quicklearn can be found in Misc. Functions on wiTECH.
5. Once complete, verify there are no Diagnostic Trouble Codes (DTC) stored in the
ELSD modules memory. Then, using the wiTECH, perform the ELSD System
Functionality Test” procedure. System Functionality Test can be found in System
Tests on wiTECH.
6. Verify there are no Diagnostic Trouble Codes (DTC) stored in the ELSD modules
memory and repair as necessary.
7. After reprogramming the ELSD Module, 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 Description Skill Category Amount
No:
18-19-65-90 Module, Electronic Limited Slip (ELSD) 3 - Driveline 0.2 Hrs.
- Inspect/Reprogram (1 - Semi-Skilled)
Related
Operation No:
18-19-65-50 Actuator, Electronic Limited Slip 0.3 Hrs.
(ELSD) - Replace
NOTE: The expected completion time for the flash download portion of this
procedure is approximately 3 minutes. Actual flash download times may be
effected by vehicle connection and network capabilities.
FAILURE CODE:
FM Flash Module
