Technical Service Bulletin
48 Power steering warning in cluster, DTC for low starting voltage (DTC 2035 or 2036)
48 14 58 2035178/2 April 25, 2014. Supersedes Technical Service Bulletin Group 48 number 13-53 dated
September 10, 2013 for reasons listed below.
Model(s)

Year

VIN Range

Vehicle-Specific Equipment

A4, A5, A5
Cabriolet, Q5

2013

All

Not Applicable

Condition
REVISION HISTORY
Revision

Date

Purpose

2

-

Revised title
Revised Warranty (Changed Service Number)

1

9/10/2013

Initial publication

• On vehicles equipped with a manual transmission, a steering warning may briefly display in the instrument
cluster when the engine is restarted after improper use of the clutch pedal. For example, the warning may
appear when the engine is restarted after the clutch pedal has been released too quickly during low-RPM, lowspeed parking lot maneuvers.
• The message could be either of the following, as illustrated in
the owner’s manual (Figure 1):
• A yellow steering warning symbol with the message “Steering
fault. You can continue driving”.
• A red steering warning symbol with the message “Steering
defective. Do not drive the vehicle”.

Figure 1. Owner’s Manual Tip

• One of the following symptom codes may be stored in the diagnostic log under the power steering control
module, J500 (address word 44):
• DTC 2305 (restricted function through low starting voltage)
• DTC 2306 (restricted function through low starting voltage)

Technical Background
The vehicle system voltage drops when the starter motor is operating. Because the power steering control module
has a parallel circuit with the starter motor (terminal 29), this normal voltage drop may set a symptom code within
the scenario described in the Condition section of this bulletin.

© 2014 Audi of America, Inc.

Page 1 of 3

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
Updated software.

Service
1. Do not replace the steering gear for this condition.
2. Ensure that the power steering control module, J500 (address word 44), already has software version 0507 or
greater. If the software version is under 0507, perform campaign 48K8 before proceeding to the next step.
Example:
Address: 44 System name: 44 - Power Steering Protocol versions: UDS/ISOTP
ASAM base version:

BV_SteerAssisUDS

ASAM control module version:

EV_RCEPSAU48X_008

Hardware part number:

8R0909144B

Software part number:

8R0909144F

Hardware version number:

H37

Software version number:

0507

3. Update the software using the instructions below.
SVM Update Instructions
1. Follow all instructions in the attached TSB, 2011732: 00 Software Version Management (SVM), operating
instructions.
2. Update the instrument cluster (Address 17) using the SVM action code as listed in the table below, if
necessary.

Model

A4,A5,A5
Cab, Q5

Engine and/or
Transmission

Old Software
Part Number

Old Software
Version

New Software
Part Number

N/A

N/A

All

N/A

© 2014 Audi of America, Inc.

New Software
Version
(or higher)

SVM
Action
Code

0557

17A011

Page 2 of 3

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
Warranty
Claim Type:

Use applicable claim type. If vehicle is outside any warranty, this Technical Service
Bulletin is informational only.

Service Number:

4835

Damage Code:

0039

Labor Operations:

SVM update

9025 2599

50 TU

Battery charge

2706 8950

10 TU

GFF

0150 0000

Time stated on
diagnostic
protocol
(Max 20 TU)

Diagnostic Time:

Technical diagnosis at dealer’s discretion
(Refer to Section 2.2.1.2 and Audi Warranty Online for DADP allowance details)
Claim Comment:

As per TSB #2035178/2

All warranty claims submitted for payment must be in accordance with the Audi Warranty Policies and Procedures
Manual. Claims are subject to review or audit by Audi Warranty.

Additional Information
All parts and service references provided in this TSB (2035178) are subject to change and/or removal. Always
check with your Parts Department and service manuals for the latest information.

© 2014 Audi of America, Inc.

Page 3 of 3

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.