Service bulletin number: 21-022-14 -2005-10 wh/wk, 2006-2010 xh/xk
SERVICE BULLETIN NUMBER: 21-022-14 -2005-10 WH/WK, 2006-2010 XH/XK
SERVICE BULLETIN NUMBER: 21-022-14
GROUP: Transmission and Transfer Case
DATE: July 10, 2014
4WD Lamp Illuminated and Diagnostic Trouble Code C140F Active in Final Drive Control Modules (FDCM) Memory
This bulletin involves verifying FDCM software level and then flash reprogramming of the FDCM with new software.
2005 - 2010 WH/WK Grand Cherokee
2006 - 2010 XH/XK Commander
NOTE: This bulletin applies to vehicles that have had Recall N23 performed.
Customers may indicate that the “Service 4WD” indicator in the instrument cluster is illuminated. They may also indicate that the transfer case will not shift from 4WD High, 4WD Low, and/or Neutral once the lamp is illuminated.
Further investigation identifies that a Diagnostic Trouble Code C140F is stored or active in the Final Drive Control Modules (FDCM) Memory
If the customer describes the symptom, perform the Repair Procedure.
Reimbursable within the provisions of the warranty.
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.
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Chrysler Group LLC