A9120922053916_2

91 iPhone is entering thermal protection while charging in phone box
91 20 92 2053916/2 August 11, 2020. Supersedes Technical Service Bulletin Group 91 number 19-36 dated
February 7, 2019 for reasons listed below.
Model(s)
Year
VIN Range
Vehicle-Specific Equipment
All
2019 - 2021
All
With phone box
Condition
REVISION HISTORY
Revision
Date
Purpose
2
-
Revised Service (Solution is no longer available)
Revised Warranty (Removed table)
Revised Required Parts and Tools (Removed table)
1
02/07/2019
Initial publication
Customer states:
 A non-plus sized iPhone heats up while wirelessly charging on the phone box.
 A non-plus sized iPhone enters thermal protection mode while charging on the phone box and stops charging.
The CarPlay screen may appear frozen during this time but the infotainment system is fully functional
otherwise.
Workshop findings:
 No relevant DTCs are stored in the information electronics control module 1, J794 (address word 005F).
Technical Background
The charging pad is universally sized for multiple phone types.
If a small phone, like a non-plus sized iPhone is placed on the phone box, it can move off center while driving.
This causes iPhones to request a higher power transfer rate in order to retain a constant charge current to the
phone which heats up the phone.
Production Solution
Not applicable.
Page 1 of 2
© 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.
Service
This concern is caused by a third party device, no product solution can be offered at this time. Any previous part
solutions are no longer available.
Warranty
This TSB is informational only and not applicable to any Audi Warranty.
Additional Information
All parts and service references provided in this TSB (2053916) 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. 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 2 of 2
© 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.