Connection offline
Transaction No.:

Technical Service Bulletin

2081474/1

96-26-01 - KESSY Keyless Entry Malfunction DTC B116B29, B116B13, B116C29,
B116C13 or U101300 Stored

Condition
Applicable Vehicles
Model(s)

Year

Eng. Code

Trans Code

VIN Range
From

VIN Range To

Tiguan

2022-2024

All

All

All

All

Taos

2022-2024

All

All

All

All

Jetta

2022-2024

All

All

All

All

Instance Number

Published Date

Version Number

Reason For Update

2081474/1

3/26/26

96-26-01

Original Publication.

Customer Concern: Keyless Entry Malfunction.
Workshop Findings: Customer statement cannot (always) be reproduced.

Technical Background
Incorrect writing sequence to the Access/Start System (KESSY) -J518- control unit.
One or more of the following fault codes may be stored in the interface for Access/Start System (KESSY)
-518- Fauly Memory:

DTC

Description

B116B29

Driver exterior door handle touch sensor implausible
signal

B116B13

Driver exterior door handle touch sensor Open circuit

B116C29

Front passenger exterior door handle touch sensor
implausible signal

B116C13

OWNER INFORMATION ABOUT CONTROL MODULE TUNING*
ACKNOWLEDGEMENT AND AUTHORIZATION FOR
REPROGRAMMING (REFLASHING) OF CONTROL MODULE(S)
*) “TUNING” is described as the addition of or modification of any component which causes a
Volkswagen vehicle to perform outside the normal parameters and specifications approved by
Volkswagen Group of America / Volkswagen Group Canada.

Date:
Dealer Number:
Vehicle Identification Number:
Repair Order Number:
Dealer stamp

I

, owner or driver of the above identified Volkswagen, confirm:

- “Tuning” as described above (especially power increasing modifications) has NOT been
performed on my vehicle.
- “Tuning” as described above has been performed on my vehicle and the following components
were modified or installed:

TUNING was performed by (Please provide Company name and telephone number, if you wish us
to contact them):

I understand that if my Control Module is determined to have been tuned, any damage caused by
the tuning of the Control Module (including adverse emissions consequences) will not be covered
by VWGoA / VGC warranties.
I am permitting an authorized Volkswagen Dealer to reflash (update) my Control Module, and by
doing so, I understand that this process will automatically overwrite (destroy) and permanently
delete any tuning program that was previously installed on the Control Module of my Volkswagen
vehicle.
By signing below, I fully acknowledge and understand that the tuning program will not be restored
and VWGoA / VGC, will not be liable in any way for the loss of tuning data.

Signature of Customer
E

2026 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
intellectual property
rights of VGoA / VGCA 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
other
and
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.

Front passenger exterior door handle touch sensor
Open circuit
U101300

Control module not coded

NOTICE
DO NOT diagnose or replace Interface for Access/Start System (KESSY) -J518- before performing the
update function as explained in this bulletin.

Production Solution
N/A.

Service
Update-Programming Procedure:
WARNING
Critical Warning: The Midtronics battery charger must be connected to the vehicle battery for the duration
of the programming, to ensure the battery state of charge remains above 12.5 volts during the update
process. If the battery drops below 12.5 volts, the programming could fail which may result in damage to
the control module. Control modules damaged by inadequate voltage will not be covered under the
warranty policy.The technician should verify the vehicle voltage prior to starting the update process, and
should monitor the voltage for the duration of the update.
– The procedure may cancel itself if the hazard warning lights are not switched ON. The hazard warning
lights prevent the system from switching to bus sleep mode during the update.
– ODIS- Service tester should be updated to the latest GFF technical version 23.2.2 or higher and SW
version 2.49.8 or higher.

CAUTION
Radiator F blades.an(s) may cycle ON high speed during the Update Process! There is a risk that
personal injury may result if contact is made with spinning fan blades.
– Keep hands and all objects away from Radiator Fan(s) during Update Process!

NOTICE
Prior to launching the ODIS Service diagnostic applications and starting control module update process,
confirm tester screen saver and power settings in accordance with Diagnostic Device Hardware &
Windows® - VHW-20-02 Change Power Options After Windows®10 Upgrade. Failure to do so may result
in the tester entering power save mode during data transfer, and subsequent control module failure. When

using a VAS 6150/X or 6160/X tester in conjunction with a VAS 6154 wireless transmitter head for a flash
procedure, connect a USB cable between the transmitter head and the tester. Failure to do so may lead to
errors during the flash procedure.
– VAS tools must only be used with their power adapters plugged in. Under no circumstances should
they be used on battery power alone during the programming procedure.

To Update-Programming using Software Version Management (SVM), review and follow instructions in
Technical Bulletin Instance 2014603 “Software Version Management”.
The SVM process must be completed in its entirety so the database receives the update confirmation
response. A warranty claim may not be reimbursed if there is no confirmation response to support the claim
or action is carried out that is not explicitly stated in the Technical Bulletin.

•

Update the Interface for Access/Start System (Kessy) -J518- using the SVM Unit code as listed in the
table below:
Model

Engine

Software Part
No.

Software
Version

New ZDC
Version (or
higher)

SVM Unit Code

Jetta

All

3Q0.959.435.Q

1400

V03935502JT

5310

Taos

All

3Q0.959.435.Q

1400

V03935497JR

5310

Tiguan

All

3Q0.959.435.Q

1400

V03935495BH

5310

The procedure can be found in GFF under Functions/ Component Selection, Software Version Management,
Adapting Software.

•

After the software update please verify operation of the Kessy function on all Kessy door handles, if
operation returns and DTC is no longer present, please release the vehicle back to the customer.

•

If the Kessy operation is still inoperable and DTC remains static/active, please continue with GFF
diagnosis.

Warranty

To determine if this procedure is covered under Warranty, always refer to the Warranty Policies and
Procedures Manual.

OWNER INFORMATION ABOUT CONTROL MODULE TUNING*
ACKNOWLEDGEMENT AND AUTHORIZATION FOR
REPROGRAMMING (REFLASHING) OF CONTROL MODULE(S)
*) “TUNING” is described as the addition of or modification of any component which causes a
Volkswagen vehicle to perform outside the normal parameters and specifications approved by
Volkswagen Group of America / Volkswagen Group Canada.

Date:
Dealer Number:
Vehicle Identification Number:
Repair Order Number:
Dealer stamp

I

, owner or driver of the above identified Volkswagen, confirm:

- “Tuning” as described above (especially power increasing modifications) has NOT been
performed on my vehicle.
- “Tuning” as described above has been performed on my vehicle and the following components
were modified or installed:

TUNING was performed by (Please provide Company name and telephone number, if you wish us
to contact them):

I understand that if my Control Module is determined to have been tuned, any damage caused by
the tuning of the Control Module (including adverse emissions consequences) will not be covered
by VWGoA / VGC warranties.
I am permitting an authorized Volkswagen Dealer to reflash (update) my Control Module, and by
doing so, I understand that this process will automatically overwrite (destroy) and permanently
delete any tuning program that was previously installed on the Control Module of my Volkswagen
vehicle.
By signing below, I fully acknowledge and understand that the tuning program will not be restored
and VWGoA / VGC, will not be liable in any way for the loss of tuning data.

Signature of Customer
E

2026 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
intellectual property
rights of VGoA / VGCA 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
other
and
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.

VW Models

Year(s)

Eng. Code(s)

Trans. Code(s)

VIN Range
From

VIN Range To

Jetta

2022-2024

All

All

All

All

Taos

2022-2024

All

All

All

All

Tiguan

2022-2024

All

All

All

All

SAGA Coding
Use applicable Claim Type 1)

Claim Type:
Service Number:

Damage Code

HST

Damage Location
(Depends on Service
No.)

9666

0039

Parts Manufacture

-Jetta, Taos, Tiguan

-3ME 2)

Labor Operation 3) : GFF/Guided functions (including
Battery charge)

01500010 = See Elsa for latest time units

Labor Operation 3) : Update Programming Access
/Start System (to be marked as causal indicator)

01500060 = TUs GFF time with a max limit of 100
TUs

Diagnostic Time 4)
GFF Time expenditure

01500060 = Actual GFF print out.
100 TU max.

YES

Road Test

01210002 = 00 TU

NO

01210004 = 00 TU
Technical Diagnosis

01320000 = 00 TU max.

NO

Claim Comment: Input “As per Technical Bulletin 2081474” in comment section of Warranty Claim.
Vehicle may be outside warranty in which this Technical Bulletin is informational only.
Code per warranty vendor code policy.
Labor Time Units (TUs) are subject to change with ELSA updates.
Documentation required per Warranty Policies and Procedures Manual.

Required Parts and Tools
No Special Parts required.

Tool Description

Tool No:

Midtronics Batter Tester/Charger

MTRMSP0702 battery maintainer/charger

VAS Diagnostic Tool

VAS 6150/X & VAS 6160/X and ODIS Service with
current online updates

Additional Information
All part and service references provided in this Technical Bulletin are subject to change and/or removal.
Always check with your Parts Dept. and Repair Manuals for the latest information.
© 2026 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.

OWNER INFORMATION ABOUT CONTROL MODULE TUNING*
ACKNOWLEDGEMENT AND AUTHORIZATION FOR
REPROGRAMMING (REFLASHING) OF CONTROL MODULE(S)
*) “TUNING” is described as the addition of or modification of any component which causes a
Volkswagen vehicle to perform outside the normal parameters and specifications approved by
Volkswagen Group of America / Volkswagen Group Canada.

Date:
Dealer Number:
Vehicle Identification Number:
Repair Order Number:
Dealer stamp

I

, owner or driver of the above identified Volkswagen, confirm:

- “Tuning” as described above (especially power increasing modifications) has NOT been
performed on my vehicle.
- “Tuning” as described above has been performed on my vehicle and the following components
were modified or installed:

TUNING was performed by (Please provide Company name and telephone number, if you wish us
to contact them):

I understand that if my Control Module is determined to have been tuned, any damage caused by
the tuning of the Control Module (including adverse emissions consequences) will not be covered
by VWGoA / VGC warranties.
I am permitting an authorized Volkswagen Dealer to reflash (update) my Control Module, and by
doing so, I understand that this process will automatically overwrite (destroy) and permanently
delete any tuning program that was previously installed on the Control Module of my Volkswagen
vehicle.
By signing below, I fully acknowledge and understand that the tuning program will not be restored
and VWGoA / VGC, will not be liable in any way for the loss of tuning data.

Signature of Customer
E

2026 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
intellectual property
rights of VGoA / VGCA 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
other
and
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.