Update Programming, Air Conditioning Not Blowing Cold (GROUP 01, NO. 07-53)

Publication date: 2007-06-28
Reference number: GROUP 01, NO. 07-53
Supersedes refnos: 2015019

UPDATE PROGRAMMING, AIR CONDITIONING NOT BLOWING COLD

TECHNICAL SERVICE BULLETIN

Reference Number(s): GROUP 01, NO. 07-53 (2015019), Date of Issue: June 28, 2007

VOLKSWAGEN:	Touareg, 2006
GROUP:	01 - On-Board Diagnostic

APPLICABLE MODELS AND YEARS

Model(s)	Year	Eng. Code	Trans. Code	VIN Range From	VIN Range To
Touareg	2006	4.2L (AXQ)	All	All	All

CONDITION

01 07 53 June 28, 2007 2015019

Update Programming, Air Conditioning Not Blowing Cold

NOTE: DO NOT diagnose or replace Air Conditioning system before performing the update function as explained in this bulletin.

TECHNICAL BACKGROUND

May be caused by the software of the Engine Control Module.

PRODUCTION SOLUTION

Improved software in the Engine Control Module resolves concerns related to:

Air conditioning not blowing cold due to idle speed.
Adjustment to increase idle speed.

SERVICE

PROCEDURE

Engine Control Module Update - Programming (Flashing) using Software Version Management (SVM)

Vehicle Requirements

Battery MUST have minimum no-load charge of 12.5V (failure to maintain voltage during update process can lead to ECM failure) (use a Volkswagen approved Midtronics/InCharge 940 (INC-940) tester/charger to maintain battery voltage).

VAS 5051: connected to vehicle and to 110V AC Power supply at all times during procedure.

VAS 5052: connected to vehicle with battery voltage requirements met.

Any appliances with high electromagnetic radiation (i.e. mobile phones) switched OFF.

When performing the update programming procedure, ALL DTCs for all systems are erased.

DTCs linked to Guided Fault Finding function tests will be lost. Therefore, always address stored DTCs for Customer concerns unrelated to the update programming procedure first.

NOTE: Non-observance of the following points may lead to ECM failure! VAS 5051 or VAS 5052 must always be connected to the approved power supply at the approved voltages. Under no circumstances should the power supply be interrupted or the diagnostic connector unplugged during the update programming procedure. Any appliances with high electromagnetic radiation (i.e. mobile phones) must be switched OFF.

Tip:

The SVM Process must be completed in it's entirety so the database receives the update confirmation response.

A warranty claim may not be reimbursed if there is no confirmation response to support the claim.

For further update instructions and troubleshooting, refer to SVM Technical Bulletin Instance 2014603 , in ElsaWeb.

Update the Engine Control Module using the Software Version Management (SVM) and the SVM Unit code as listed in the table below:

SOFTWARE INFORMATION

Model	Engine	Old Software Part No.	Old Software Version	New Software Part No.	New Software Version (or higher)	SVM Unit Code
Touareg	4.2L (AXQ)	4D0907560DF	All	4D0907560DF	0030	20B0

If the vehicle has a tuned ECM or TCM, ensure the Control Module Tuning Form has been filled out.
NOTE: An Update Programming procedure (flash) may overwrite any "TUNED" ECM or TCM programming. A "TUNED" ECM or TCM is described as any ECM or TCM altered so as to perform outside the normal parameters and specifications approved by Volkswagen of America, Inc.

Current Tuned ECM or TCM requirements: If you encounter a vehicle with a "Tuned" ECM or TCM, your dealership must do the following before performing any procedure that updates ECM or TCM programming:

Notify the owner that their ECM or TCM was found to have been tuned.
Notify the owner any damage caused by the tuning of the ECM or TCM (including any adverse emissions consequences) will not be covered by Volkswagen of America, Inc. warranties.
Obtain the owner's written consent (see attached Control Module Tuning form) for any requested repair under warranty or outside warranty that requires flashing, which will automatically overwrite the "Tuned" program.

WARRANTY

WARRANTY INFORMATION

To determine if this procedure is covered under Warranty, always refer to the Warranty Policies and Procedures Manual

Claim Type:

Use applicable Claim Type⁽²⁾

Part Identifier:

2470

Damage Code:

2470 39 _ _ _⁽¹⁾ 1

Labor Operation:

24702545 = 90TU

Diagnostic Time:

No diagnostic time allowed

Claim Comment: Input "As per Technical Bulletin 2015019" in comment section of Warranty Claim.

⁽¹⁾	Code per warranty vendor code policy.

⁽²⁾	Vehicle may be outside any Warranty in which case this Technical Bulletin is informational only.

REQUIRED PARTS AND TOOLS

No Special Tools required.

ADDITIONAL INFORMATION

All part and service references provided in this Technical Bulletin are subject to change and/or removal. Always check with Parts Dept. and Repair Manuals for the latest information.

Fig 1: Control Module Tuning Form