87 14 08 2037933

Technical Bulletin
Model(s)
Year
Eng. Code
Trans. Code
VIN Range From
VIN Range To
Routan
2011-2014
All
All
All
All
Condition
87 14 08 August 6, 2014 2037933
HVAC System Intermittently Blows Cold Regardless of Setting
Note:
This bulletin applies to vehicles equipped with a Manual Temperature Control System (sales code HAA) or
a 3 Zone Manual Temperature Control System (sales code HAG) built on or before May 23, 2014.
Technical Background
Customers may experience the following condition:
• ·HVAC system intermittently blows cold regardless of blend door/temperature setting.
Updating the HVAC software will correct this condition.
Tip:
wiTECH™ UPDATE PROGRAMMING FILES FOR THIS BULLETIN MUST BE RETRIEVED FROM THE
INTERNET.
wiTECH™ SOFTWARE LEVEL MUST BE AT RELEASE 13.04.7 OR HIGHER FOR THIS BULLETIN.
StarMOBILE™ SOFTWARE LEVEL MUST BE AT RELEASE 10.01 OR HIGHER FOR THIS BULLETIN
Production Solution
Improved Manual Temperature Control Module (MTC) software has been introduced in production as of May 23,
2014.
Page 1 of 4
© 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
Service
Using a Scan Tool (wiTECH™) with the appropriate Diagnostic Procedures available in TechCONNECT, verify all
HVAC systems are functioning as designed. If DTC's are present record them on the repair order and repair as
necessary before proceeding further with this bulletin. If the above condition is present, perform this Repair
Procedure.
Repair Procedure
Note:
Install a battery charger to ensure battery voltage does not drop below 13.2 volts. Do not allow the
charging voltage to climb above 13.5 volts during the programming process.
If this reprogramming process is interrupted / aborted, the reprogramming should be restarted.
1. Use the wiTECH Diagnostic Application to reprogram the HVAC. Help using the wiTECH Diagnostic Application
for reprogramming the HVAC is made available through the wiTECH Diagnostic Application. For instructions
select the “HELP” tab on upper portion of the wiTECH window, and then select “HELP CONTENTS.” This will
open the Welcome to wiTECH Help screen where help topics can be selected.
2. After HVAC reprogramming, the following must be performed: clear any DTC's that may have been set in other
modules due to reprogramming. The wiTECH application will automatically present all DTCs after the
reprogramming and allow the tech to clear them.
3. Perform the Actuator Calibration Test routine found under the Systems Test tab in the wiTECH Diagnostic
Application.
Page 2 of 4
© 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
Warranty
Note:
This bulletin only applies to vehicles built on or before May 23, 2014.
All Routan pre and post road test, StarMOBILE and wiTECH time units are included in the labor operation.
Therefore, no road test time units will appear in the designated area within the warranty table.
To determine if this procedure is covered under Warranty, always refer to the Warranty Policies and
1)
Procedures Manual
Model(s)
Year(s)
Eng. Code(s)
Trans. Code(s)
VIN Range From
VIN Range To
Routan
2011-2014
All
All
All
All
SAGA Coding
Claim Type:
Use applicable Claim Type
1)
Damage
HST
Damage Location
(Depends on Service No.)
CWM2037933
Use applicable when
indicated in ElsaPRO
(L/R)
Service Number:
Code
8704
0039
Parts Manufacturer
Routan
3)
Labor Operation : Module, Manual Temperature
Control
USM
2)
87042599 = 20 TU
(MTC) - Reprogram
Causal Part: Select Labor Operation
87042599
Diagnostic Time
GFF Time expenditure
01500000 = 00 TU max.
Road Test
01210002 = 00 TU
4)
NO
NO
01210004 = 00 TU
Page 3 of 4
© 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 Diagnosis
01320000 = 00 TU max.
NO
Claim Comment: Input “As per Technical Bulletin 2037933” in comment section of Warranty Claim.
1)
Vehicle may be outside any Warranty in which case this Technical Bulletin is informational only
2)
Code per warranty vendor code policy.
3)
Labor Time Units (TUs) are subject to change with ELSA updates.
4)
Documentation required per Warranty Policy Procedures Manual.
Required Parts and Tools
No Special Parts required.
Tool Description
Tool No:
Midtronics Battery Tester/Charger
InCharge 940 (INC-940) or
GRX 3000 VAS
StarMOBILE Tester Kit or
CH9401 (SW level 10.01.23 or higher)
VW MICRO POD Tester Kit
VWMICROPOD
wiTECH Desktop Client
(Software level 13.04.7 or higher)
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 4 of 4
© 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.