A9321462062953_1

PSS 93 Yellow warning lamp appears and/or the vehicle does not start, DTC P0A9500 is stored
intermittently
93 21 46 2062953/1 April 14, 2021.
Model(s)
Year
VIN Range
Vehicle-Specific Equipment
A8, Q5
2020 - 2022
All
PHEV
A7
2021 - 2022
All
PHEV
Condition
Customer states:
 The message “Electrical system: fault. Please contact workshop” (yellow warning lamp) appears in the
instrument cluster.
And/or
 The vehicle does not start.
Workshop findings:
The following DTC is intermittently stored in the hybrid battery regulation control module, J840 (address word
008C):
 DTC P0A9500 (High Voltage Fuse) with symptom code 28730.
Note:
According to Guided Fault Finding, the switching unit for high-voltage battery should be replaced. However,
replacing the part will not solve the problem.
Technical Background
During particularly dynamic cornering, it is possible that in rare, isolated cases, the DTC given above may be
logged without a reason. This is caused by an irregularity in the diagnosis.
Production Solution
A new software which rectifies the irregularity in the diagnosis is currently in development.
Page 1 of 3
© 2021 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.
Service
1.
Explain to the customer that a solution is forthcoming for the first quarter of 2022 and that no repairs are
necessary at this point. Do not replace any components for this condition since this will not resolve the
customer’s concern.
Note:
Please inform the customer that the warning lamp described above will go out if the vehicle is switched off
for at least five seconds.
2.
Create a PSS record in the PSS application through the Pending Service Solutions (PSS) link in
AccessAudi (under Related Links >> Service), or through the Technical Assistance page in Elsa.
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:
9327
Damage Code:
0040
Diagnostic Time:
GFF
0150 0000
Time stated on
the diagnostic
protocol (Max 20
TU)
Road test prior to service procedure
No allowance
0 TU
Road test after service procedure
No allowance
0 TU
Claim Comment:
As per TSB #2062953/1
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 part and service references provided in this TSB (2062953) 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.
Page 2 of 3
© 2021 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.
©2021 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 3 of 3
© 2021 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.