Jetta Sedan L5-2.5L (BGP) (2005)
Ordering Center at www.vw.resolve.com, 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.
Vehicle requirements
MUST have minimum no-load charge of 12.5V (failure to maintain voltage during update process can lead to ECM failure) (use an approved battery
charger INC940 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:
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. Any appliances with high electromagnetic radiation (i.e. mobile phones) must be switched OFF
Tip:
Before update programming, delete the fault memory in the ECM and TCM. Update programming is not possible when an EEPROM fault is active.
Reprogram ECM and TCM with CD - Part number W422005A5SWU.
Note:
TCM reprogramming is only necessary if the feature for update programming is available.
^
Insert the programming CD into 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.
^
Once ECM update has been performed, access TCM and perform "Update Programming" if the VAS 5051 / 5052 shows the "Update Programming"
feature.
Tip:
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.