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Engine Controls - Poor Rolling Start Throttle Response

01 07 66

Oct 25, 2007

2013077





Vehicle Information

Condition

Supersedes T.B. Group 01 number 06-18 dated Oct. 18, 2006 due to bulletin
coming out of RVU status.

Update Programming to Eliminate Poor Throttle Response

Technical Background

Updated ECM software that addresses:

^ Poor Throttle Response from a rolling stop





Engine Control Modules Affected

Production Solution

ECM software update completed as of October 2006.

Service

PROCEDURE:

Update - Programming (Flashing)

Tip:
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.

The following "Update - Programming" (flashing) process may overwrite any "TUNED" ECM programming. A "TUNED" ECM is described as any ECM altered so as to perform outside the normal parameters and specifications approved by Volkswagen of America, Inc.

If you encounter a vehicle with a "Tuned" ECM, prior to performing the "Update - Programming" (flashing) procedure:

^ Your Dealership should place the vehicle owner on notice in writing, that their ECM was found to have been tuned, and that any damage caused by the tuning of the ECM (including any adverse emissions consequences) will not be covered by Volkswagen of America, Inc. warranties.





^ For any repair requested by the owner under warranty or outside warranty that requires update programming, which will automatically wipe out the "Tuning" program, your Dealership should advise the owner of the above and get Owner's written consent (see attached Control Module Tuning form) to the update programming procedure.

Tool requirements

VAS 5051 or VAS 5052 (with Base CD V.11.0 and the Brand CD V.11.79.01 or higher).

"Update - Programming" (flashing) CD W42INSTKUPDATECD See Required Parts and Tools.

Tip:
Additional copies of the "Update - Programming" CD (Literature Number W42INSTKUPDATECD) may be ordered from the Volkswagen Technical Literature Ordering Center or by calling from 8:00 a.m. to 8:00 p.m. EST Monday through Friday. This number can be dialed in both the United States and Canada.

Note:
Nonobservance 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.

Vehicle requirements

^ Ensure the following vehicle requirements are met:

^ Connect vehicle to a powered Volkswagen approved Midtronics/InCharge 940 (INC-940) tester/charger

^ Battery MUST have minimum no-load charge of 12.5V

^ Turn off the radio and all other accessories, and when necessary, switch running lights off

^ Turn off any appliances with high electromagnetic radiation (i.e. mobile phones)

Tip:
Before update programming, delete the fault memory in the ECM. Update programming is not possible when an EEPROM fault is active.

Reprogram ECM with CD - Part number W42INSTKUPDATECD.

^ Insert the programming CD in the VAS 5051 / 5052, and access the ECM.

Tip:
If the update programming button does not appear, the latest version has already been installed to the level below.

Programming starts by pressing the "Update Programming" button and following the on screen prompts.

Note:
Once update programming begins, on NO occasion should the Cancel button be selected.

Press the "Update Programming" button.

Tip:
Once update programming is complete, switch ignition OFF for 30 seconds.
After a minimum of 30 seconds, switch ignition ON.

Once update programming is complete, it is recommended to use 1001-Compiling Services prompt to clear faults stored in various control modules.





^ Reset readiness code.





Warranty





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 your Parts Dept. and Repair Manuals for the latest information.