Technical Bulletin
Model(s)

Year

Eng. Code

Trans. Code

VIN Range From

VIN Range To

All Minus “S”
trim

2014

All

All

All

All

CC, EOS, Beetle
Convertible

2014

All

All

All

All

Golf/GTI

2015

All

All

All

All

Passat, Jetta,
Beetle, Tiguan

Condition
91 14 05 June 10, 2014 2034309 Supersedes V911402 dated February 19, 2014 to include 2015 Golf/GTI.
Car-Net™ Operating Control Unit (OCU/J949) Service Guidelines & General Information
OCU / Car-Net modules with software 078 or 086 SHOULD NOT be replaced for the following fault codes:
• B201700: Control module locked
• B105213: Control unit for cell phone preparation open circuit
• U112300: Databus error value received
• B1788F0: Control Module Immobilizer deactivated
• SW 078 equipped cars will have a brief “Chirp” or “In-Band modem noise” when making a connection. This is
a characteristic operation and no repairs should be performed.
• Swapping of OCU modules from car-to-car for diagnosis or repair is discouraged as corruption of stored
vehicle data and subscription information within OCU is possible.
• Current Service Parts should have software level of 078 or 086 (Higher levels pending). Do not install lower
software level into vehicle than was removed, i.e. DO NOT replace a SW086 with a SW078.
Tip:
Car-Net equipped vehicles have PR code “EL2” and address word “75” along with 3-button assembly in
overhead console.

Page 1 of 3
© 2014 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 Bulletin
Technical Background
Software related fault codes:
Faults related to the software level 078 or 086 noted above, will not cause any negative operational problems or
customer reported symptoms.
B201700 and U112300 faults may erase but will generally return immediately.
B105213 May set if instrument Illumination is turned to 100%
No diagnosis or repair is necessary for any of these fault codes.
Software operating characteristics
SW078 “Chirp”
• Software Level 086 introduced.
Faults stored in OCU (Address 75) in both Software levels 078 and 086
• Software update under development.
Swapping of OCU
Each OCU is specifically tied to vehicle VIN, Vehicle Build Information and customer. Swapping modules from
car-to-car can potentially corrupt data stored within module and/or at Verizon Telematics (VZT).
During PDI, LED does not illuminate:
• Odometer has 5+ miles.
• Confirm “Transport” and “Factory” modes are disabled
• No related fault(s)
• AT&T 3G (data) coverage necessary for successful Over The Air Registration (OTAR).
Unsuccessful Over The Air Registration (OTAR)
When a vehicle is removed from transport mode the OCU will attempt to perform the OTAR.
If unsuccessful an internal clock inside the OCU must run down before it will attempt to re-register
Time increases exponentially with each failed OTAR attempt (i.e. 1min 2, 4, 8, 16…) up to 24 hours.
Note following if OTAR fails:
• Clock will count down regardless of key status (OFF or ON).
• Upon switching the ignition key ON after clock has counted down the OCU will re-attempt the OTAR (if clock
has counted down).
• Switching ignition key ON prior to the clock running down will not add time to the clock.
• There is no Measured Value Block to check time remaining on clock.
• Ensure location where cars are being removed from transport mode has AT&T 3G coverage.
Page 2 of 3
© 2014 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 Bulletin
• GPS signal required for successful OTAR.
• If car is equipped with navigation ensure navigation map is accurate
• If car is not equipped with navigation MVB are available to check GPS signal in the OCU (address 75)
• GPS reception status/number of visible satellites
• GPS reception status/number of tracked satellites

Production Solution
Information only.

Service
Information only.

Warranty
Information only.

Required Parts and Tools
No Special Parts required.

Tool Description

Tool No:

Midtronics Battery Tester/Charger

InCharge 940 (INC-940)

VAS Diagnostic Tool

VAS 5051B, VAS 5052A, VAS 6150/X & VAS 6160/X
with:
ODIS Service 2.0.0 or higher with current online
updates

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
© 2014 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.