A0120942058976_4

01 Car jerks/bucks or hesitates while driving DTCs P023400, P023500, P023600, P023700, and P023800 are
stored in the ECM
01 20 94 2058976/4 November 24, 2020. Supersedes Technical Service Bulletin Group 97 number 20-76 dated
June 12, 2020 for reasons listed below.
Model(s)
Year
VIN Range
Vehicle-Specific Equipment
Q5
2018 - 2020
All
2.0 liter
Condition
REVISION HISTORY
Revision
Date
Purpose
4
-
Revised title (Updated repair group)
Revised header (Corrected Elsa display issue)
Revised Required Parts and Tools (Updated part number)
3
06/12/2020
Revised header (Added vehicles)
2
04/10/2020
Revised header (Corrected Elsa display issue)
Customer states:
 The vehicle feels as if it is hesitating, is low on power or is bucking/jerking while driving.
Workshop findings:
 A check engine light may or may not be illuminated in the instrument cluster.
One or more of the following DTCs may be stored in the engine control module (ECM), J623 (address word
0001):
 DTC P023400 (Turbo/Super Charger Overboost Condition).
 DTC P023500 (Turbo/Super Charger Boost Sensor A Circ).
 DTC P023600 (Turbocharger Boost Sensor (A) Circ. Range/Performance).
 DTC P023700 (Turbocharger Boost Sensor (A) Circ. Low Input).
 DTC P023800 (Turbocharger Boost Sensor (A) Circ. High Input).
Or
 No relevant DTCs are stored.
Page 1 of 4
© 2020 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 Background
One of the pins or wires at the boost pressure sensor (G31) connector T4e may be backed out or broken due to
the routing concept of the engine harness. When inspected, the harness is found to be too tight in the area of the
sensor.
Production Solution
Routing concept improved in production.
Service
Note:
Due to the possibility of a no fault scenario OR the fact that some of these faults can occur with other root
causes, it is advised to perform a quick inspection to the G31 connector before starting in depth diagnosis.
If one of the faults listed above is stored, inspect the
wires at the G31 sensor.
It may be necessary to disconnect or de-pin the wires
from the T4e connector to check for proper crimping
and seating of the pins.
If there is damage to the pins or wire, repair the
harness as needed (Figure 1). Ensure there is
sufficient slack in the harness to prevent future issues.
If there are no issues found at T4e, please proceed
with standard diagnosis.
Figure 1. T4e with damaged wire.
Note:
Parts replacement does not solve this issue. Claims for replaced parts (e.g. turbocharger) will be subject to
review.
Page 2 of 4
© 2020 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.
Warranty
Claim Type:
 110 up to 48 Months/50,000 Miles.
 G10 for CPO Covered Vehicles – Verify Owner.
 If the vehicle is outside any warranty, this Technical Service Bulletin is
informational only.
Service Number:
9752
Damage Code:
0040
Labor Operations:
Central wiring harness repair
9709 41XX
See SRT (based
on the number of
wires) with
associated
operations
Diagnostic Time:
GFF
0150 0000
Time stated on
the diagnostic
protocol (Max 50
TU)
Road test prior to the service procedure
No allowance
0 TU
Road test after the service procedure
0121 0004
10 TU
Claim Comment:
As per TSB #2058976/4
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.
Required Parts and Tools
Tool Number
Tool Description
VAS1978B
Wiring Harness Repair Set
VAS 6160/VAS 6150
VAS tester with current version of ODIS (Windows 10)
Page 3 of 4
© 2020 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.
Additional Information
All parts and service references provided in this TSB (2058976) 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.
©2020 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 4 of 4
© 2020 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.