Technical Service Bulletin

01-20-01 - Catalyst Replacement with Updated Programming DTCs
P0420 or P0430

Transaction No:

2058261/2

Release date:

3/16/2020

Condition
Applicable Vehicles
Model(s)

Year

Eng. Code

Trans. Code

VIN Range
From

VIN Range To

Atlas

2018 - 2019

3.6L

All

CA_JC000001

CA_KC999999

(CDVC)

Revision Table
Instance Number

Published Date

Version Number

Reason For Update

2058261/2

03/16/2020

01-20-01

Moving DTC codes
P0456, P2096, P2097,
P2098, P2099 to
Technical Bulletin
2058272.

2058261/1

02/18/2020

01-20-01

Original publication.

Tip:
This software update also includes modifications for: DTCs P0456, P2096, P2097, P2098, and P2099.
One or more of the following fault codes may be stored in the Engine Control Module (ECM) Fault
Memory:
DTC

Description

P0420

Catalyst System,Bank1 Efficiency Below Threshold

P0430

Catalyst System, Bank2 Efficiency Below
Threshold

Note:
DO NOT diagnose or replace components due to the above faults before performing the hardware
replacement and update function as explained in this bulletin.

Technical Background
Improved catalytic converter hardware for long-term durability.
Improved ECM software to reduce thermal stress on catalytic converter.

Page 1 of 7 plus attachment
© 2020 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.

Technical Service Bulletin

01-20-01 - Catalyst Replacement with Updated Programming DTCs
P0420 or P0430

Transaction No:

2058261/2

Release date:

3/16/2020

Production Solution
Improved catalytic converter and improved software implemented at Start of Production (SOP) MY20.

Service
Note:
It is mandatory that both the catalytic converter replacement and the ECM software update are performed
together!
Tip:
Always refer to ETKA for the latest part number information.
 Remove and replace the catalytic converter with part 3QF254500MX, or part 3QF253059PX, before
proceeding to the ECM software update below. Refer to repair manual group 26 Exhaust System in
Elsa.
Update-Programming Procedure:
Note:
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.
WARNING:
Radiator Fan(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!
Note:
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.

Page 2 of 7 plus attachment
© 2020 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.

Technical Service Bulletin

01-20-01 - Catalyst Replacement with Updated Programming DTCs
P0420 or P0430

Transaction No:

2058261/2

Release date:

3/16/2020

Tip:
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.
Note:
For MY18 Atlas vehicles: if the software update via SVM Unit Code is not successful, ensure that vehicle
update 23X1 (if applicable to this VIN) has been successfully completed, before performing the Engine
Control Module software update described in this technical bulletin.
 Update the Engine Control Module using the SVM Unit code as listed in the table below:

Model

Engine

Old Software
Part No.

Old
Software
Version

New Software
Part No.

New
Software
Version (or
higher)

SVM Unit
Code

03H 906 026 E

9970

43E7

03H 906 026 F

9970

43E7

03H 906 026 J

9970

43E7

03H 906 026
R

9970

43E7

6024
6384
03H 906 026 E

6695
7232
9930

MY18 Atlas

6025

3.6L
(CDVC)

03H 906 026 F

6385
6696
9931
6026

03H 906 026 J

6389
6697
9932

MY19 Atlas

3.6L
(CDVC)

6027
03H 906 026
R

6416
6525

Page 3 of 7 plus attachment
© 2020 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.

Technical Service Bulletin

01-20-01 - Catalyst Replacement with Updated Programming DTCs
P0420 or P0430

Transaction No:

2058261/2

Release date:

3/16/2020

6692
9928
6028
6417
03H 906 026 S

6526

03H 906 026 S

9970

43E7

03H 906 026
AA

9970

43E7

6693
9927
6029
6418
03H 906 026
AA

6527
6694
9929

Tip:
The procedure can be found in GFF under Functions/ Component Selection, Software Version
Management, Adapting Software.
Ensure attached ECM/TCM Tuning Form has been completed and signed by customer as required in
SVM Technical Bulletin Instance 2014603.

Page 4 of 7 plus attachment
© 2020 Volkswagen Group of America, Inc.