V9324012073298_1

Technical Service Bulletin
93-24-01 - Reduced Range Concern with Yellow Electrical System
Error Message with P0BBD
Transaction No:
2073298/1
Release date:
3/26/2024
Condition
Applicable Vehicles
Model(s)
Year
Eng. Code
Trans. Code
VIN Range From
VIN Range To
PR No.
ID.4
2021 - 2023
All
All
All
All
LX0
Revision Table
Instance Number
Published Date
Version Number
2073298/1
3/26/2024
93-24-01
Reason For Update
Original publication.
Customer Concern:
• Electrical system error message (yellow) with the following DTC stored in the Battery Regulation
Control Module -J840- (diagnostic address 008C):
• P0BBD00: Hybrid Battery Pack Voltage Variation Exceeded Limit
• A complaint of reduced or dropping range may also be present.
If a vehicle presents a range complaint without the above DTC stored in the Battery Regulation
Control Module -J840- (diagnostic address 008C), then this bulletin does not apply. For
concerns relating to the degradation of the total capacity of the high-voltage battery due to
aging, refer to Technical Service Bulletin 2071535. For other concerns related to range
diagnosis, refer to Technical Service Bulletin 2071494.
Page 1 of 3
© 2024 Volkswagen Group 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 Volkswagen Group 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
93-24-01 - Reduced Range Concern with Yellow Electrical System
Error Message with P0BBD
Transaction No:
2073298/1
Release date:
3/26/2024
Technical Background
In some high-voltage batteries there have been cells that demonstrate an increased self-discharge due to
a production fault. An increased self-discharge in individual battery cells can lead to a reduction in overall
battery capacity, and therefore a reduction of the range of the vehicle.
In the case of a cell module replacement, certain steps must be carried out in order to reset the data in
the Battery Regulation Control Module -J840- (diagnostic address 008C).
Production Solution
Improvements made to battery production process CW48/22.
Service
This procedure applies to vehicles with a Battery Regulation Control Module -J840- (diagnostic
address 008C) with software version 1041. If the -J840- software is at a lower level than 1041,
ensure all applicable campaigns are completed to bring the -J840- up to software version 1041.
This procedure includes a reset of the data in the Battery Regulation Control Module -J840(diagnostic address 008C). This will prevent the “check cell equalization” test plan (performed in
campaign 93P7) from incorrectly identifying cell modules as defective that have already been
replaced.
1. Complete the test plan populated in GFF for DTC P0BBD00.
• Only replace cell module(s) as directed by this GFF test plan’s results, and in accordance with the
instructions outlined in the repair manual.
2. Perform GFF > Special Functions > software configuration > via action code > 8CHVHDM1041
3. Perform GFF > Test plan > Select self test > 0019 – Establish bus sleep mode
4. Perform GFF > Special Functions > software configuration > via diagnostic address > 008C
5. Perform GFF > Test Plan > Select self test > 0025 – VKMS adaptation
Page 2 of 3
© 2024 Volkswagen Group 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 Volkswagen Group 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
93-24-01 - Reduced Range Concern with Yellow Electrical System
Error Message with P0BBD
Transaction No:
2073298/1
Release date:
3/26/2024
Warranty
Information only.
Required Parts and Tools
Not applicable.
Additional Information
All part and service references provided in this Technical Bulletin are subject to change and/or removal.
Always check with your Parts Dept. and Repair Manuals for the latest information.
Page 3 of 3
© 2024 Volkswagen Group 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 Volkswagen Group 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.