TT 961011

Service Bulletin Details

Public Details for: TT 961011

Update to model year applicability.


- 2005 - 2004 - 2003 - 2002 - 2001 - 2000 - 1999 -

Technical Tips
Technical Tip
Topic
96-10-11TT – Reader Coil Test for Key Not Being Read and Fault 01128
Market area
United States 444 Volkswagen of America, Inc. (6444)
Brand
Volkswagen
Date
September 19, 2017
Condition
ATTENTION:
THIS IS A TECH TIP, NOT A TECHNICAL BULLETIN.
TECH TIPS ARE NOT ASSOCIATED WITH WARRANTY CLAIMING.
Reader Coil Test for Key Not Being Read and Fault 01128
Model(s)
Year
Eng. Code
Trans. Code
VIN Range From
VIN Range To
All
1999-2005
All
All
All
All
Technical Background
NA.
Service
To test the reader coil, begin by back probing one wire at the reader coil with the red DVOM test lead and ground the
other meter test lead. Switch the ignition key ON and check the reading. The reading should be more than 80mV and
then decline to ~70mV. A fault in the system will show less than ~20mV.
Regardless of initial reading, gently remove the cluster (leave wiring attached) with ignition key ON. Monitor the
voltage reading while wiggling the green cluster connector. If the reading fluctuates between ~70mV and ~20mV the
cause may be a poor contact at the cluster connector.
Replace the two reader coil wire terminals and retest. If there is no voltage when switching the key to the ON position,
the immobilizer should be replaced. If the reading remains at ~20mV, test the reader coil resistance. Reader coil
resistance should read between 18 and 24 ohms.
Additional Information
Revision History
Revision Number
Released Date
Reason For Update
2031508/3
9/19/17
Update to latest standard.
2031508/2
2/21/14
Update to information.
2031508/1
12/3/10
Original publication.
© 2017 Volkswagen Group of America, Inc. All rights reserved. Information contained in this document is based on
the latest information available at the time of printing and is subject to the copyright and other intellectual property
rights of Volkswagen Group of America, Inc., its affiliated companies and its licensors. All rights are reserved to make
changes at any time without notice. No part of this document may be reproduced, stored in a retrieval system, or
transmitted in any form or by any means, electronic, mechanical, photocopying, recording, or otherwise, nor may
these materials be modified or reposted to other sites, without the prior expressed written permission of the publisher.
1


© dot.report 2024

Use of this information constitutes acceptance for use in an AS IS condition. There are NO warranties, implied or otherwise, with regard to this information or its use. Any use of this information is at the user's risk. It is the responsibility of user to evaluate the accuracy, completeness or usefulness of any information, opinion, advice or other content. EACH USER WILL BE SOLELY RESPONSIBLE FOR ANY consequences of his or her direct or indirect use of this web site. ALL WARRANTIES OF ANY KIND ARE EXPRESSLY DISCLAIMED. This site will NOT BE LIABLE FOR ANY DIRECT, INDIRECT or any other kind of loss.