Technical Service Bulletin
00 Invalid DTCs are stored; all functions work normally (Audi Q4)
2067842_3
Model(s)

Year

VIN Range

Vehicle-Specific Equipment

Q4 e-tron, and
Q4 Sportback etron

2022 – 2023

All

Not Applicable

Condition
REVISION HISTORY
Revision

Date

Purpose

3

-

Revised service (corrected mislabled address word)

2

02/13/2023

Revised Condition (updated DTC table)

1

08/23/2022

Initial publication

Customer States:
No customer concerns; it is found during PDI or any other diagnostic work.
Workshop findings:
The following DTCs may be entered in the vehicle:
Diag. Address

DTC

Description

B114DF2

Multifunction
steering wheel
control module

1376305

B131D29

Sirens / alarm horn
for anti-theft
warning system,
implausible signal

267032

B163002

Predictive route
data signal error

9371914

B1AF9F0

HV coordinator
charging not
initiated

8515664

0019

Symptom

Status

passive/intermittent or active/static

passive/sporadic
passive/intermittent or active/static
passive/intermittent

Page 1 of 5
© 2023 Audi 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 Audi 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
B1CA2F1

Charge cover A
activation locking
error

8516873

passive/intermittent

B200000

Control module
faulty

8556801

passive/intermittent or active/static

C1249F6

Function limitation
due to safety
functions for
charging
management
(mechanical)

8516406

passive/intermittent

P0CF400

Control Pilot Circuit
Range/Performance

8516368

passive/sporadic

P1CC300

External charging
infrastructure
malfunction

8516354

passive/intermittent

P1DCB00

External charging
infrastructure not
ready for charging,
charge socket A

8516869

passive/intermittent

U012200

ESP no
communication

8398618 or
8398619

passive/intermittent

U029200

Lost
Communication
With Drive Motor
Control Module 'A’

8398626

passive/intermittent or active/static

U105400

Information
electronics control
module 1, no
communication

2244723

passive/intermittent

U112100

Data bus missing
message

848472065 or
8515586 or
528917 or
540677

passive/intermittent

U112200

Data bus
implausible
message

8557314

passive/intermittent

Page 2 of 5
© 2023 Audi 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 Audi 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
U112300

Data bus error
value received

8471814

passive/intermittent

U14FE00

Secure Onboard
Communication,
signature
verification failed

8491266

passive/intermittent or active/static

U14FF00

Secure Onboard
Communication,
signature creation
failed

8491267

passive/intermittent

U15FA00

EgoMaster, input
data error

8540417

passive/intermittent

U163300

HVLM vehicle to
grid setup timeout

8516355

passive/intermittent

U164200

Ethernet
Emergency Call
Module no
communication

2502759

passive/intermittent

U164300

Ethernet Rearview
Camera System
Control Module no
communication

2494569

passive/intermittent or active/static

U164600

Ethernet antenna
module no
communication

2502842

passive/intermittent

U166300

Ethernet application
server 3 for system
1 infotainment no
communication

2498824

passive/intermittent

U173E00

Occupant detection
function limitation
due to implausible
message

8511746

passive/intermittent

U195A00

Light control
module has
adapted safe
condition

937984

passive/intermittent or active/static

Page 3 of 5
© 2023 Audi 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 Audi 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
U14FF00

Secure Onboard
Communication,
signature creation
failed

U175D00

Software error,
recovery update via 1796 or 1797 or
basic setting
1798
required

U175D00

Software error,
recovery update via
basic setting
required

479232

passive/intermittent

P1CB500

Plug and Charge
Communication
error while installing
a vehicle certificate

8495361

passive/intermittent or active/static

P1CB600

Plug & Charge
vehicle certificate
installation failed

8495362

passive/intermittent or active/static

U111100

Function limitation
due to missing
message

8603057

passive/intermittent or active/static

U175D00

Software error,
recovery update via
basic setting
required

8603057

active/static

00C0

U112300

Data bus error
value received

4194347

8116

U112300

Data bus error
value received

4194347

C002

8123

8124

8491267

passive/intermittent

passive/intermittent or active/static

passive/intermittent or active/static
passive/intermittent or active/static

Technical Background
Due to various changes in production and ODIS software, various faults may be displayed or stored in the
diagnostic tester even though there is no problem in the vehicle.

Page 4 of 5
© 2023 Audi 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 Audi 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
Production Solution
Not Applicable

Service
No repair is available at this time.
1. Do not perform any repairs. Any repairs for this concern may be denied.
The DTC codes listed above do not require a TAC ticket for repair authorization reporting.

Warranty
This TSB is informational only and not applicable to any Audi warranty.

Additional Information
All part and service references provided in this TSB (2067842) are subject to change and/or removal. Always
check with your Parts Department and/or ETKA for the latest information and parts bulletins. Please check the
Repair Manual for fasteners, bolts, nuts, and screws that require replacement during the repair.
©2023 Audi of America, Inc. All rights reserved. The 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 Audi 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.

Page 5 of 5
© 2023 Audi 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 Audi 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.