Update Programming, Mil On, DTC P0420 Stored In ECM (GROUP 01, NO. 07-06)

WARNING: This page is about the Jetta GLS, 1.8 D, AWD, Automatic, which is a different variant/trim than selected.

Publication date: 2007-01-22
Reference number: GROUP 01, NO. 07-06
Supersedes refnos: 2013839, GROUP 01, NO. 06-25

UPDATE PROGRAMMING, MIL ON, DTC P0420 STORED IN ECM

TECHNICAL SERVICE BULLETIN

Reference Number(s): GROUP 01, NO. 07 06 (2013839), Date of Issue: January 22, 2007

VOLKSWAGEN:	Golf, Jetta
GROUP:	01 - On-Board Diagnostic

Superceded Bulletin(s): GROUP 01, NO. 06-25, Date of Issue: December 22, 2006

SERVICE INFORMATION

APPLICABLE MODELS AND YEARS

Model(s)	Year	Eng. Code	Trans. Code	VIN Range From	VIN Range To
Golf, Jetta	1999 - 2002	2.8L (AFP)	All	All	All

CONDITION

Update Programming, MIL ON, DTC P0420 Stored in ECM

MIL ON with DTC P0420 Catalyst System, Bank1 Efficiency Below Threshold stored in ECM.

NOTE: 01 07 06 Jan. 22, 2007 2013839 Supersedes T.B. Group 01 number 06-25 dated Dec. 22, 2006 due to warranty table claim type information change.

TECHNICAL BACKGROUND

The monitoring strategy for the catalytic converter is too sensitive causing unnecessary catalytic converter replacements. The updated programming of the ECM software makes the monitoring strategy more accurate.

NOTE: DO NOT replace catalytic converter due to P0420 if older software level is installed.

PRODUCTION SOLUTION

No production change required.

SERVICE

PROCEDURE

Engine Control Module 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.10.01 and the Brand CD V.10.70.00 or higher).

"Update - Programming" (flashing) CD MY99022VVR6CAT.

Tip: Additional copies of the "Update - Programming" CD (Literature Number MY99022VVR6CAT) may be ordered from the Volkswagen Technical Literature Ordering Center at www.vw.resolve.com , or by calling 1-800-544-8021 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

Battery 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: 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: 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 MY99022VVR6CAT.

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.

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.

UPDATED ENGINE CONTROL MODULE

Part No.	Index	Software
021906018	A	6781
	B	6782
	K	6758
	M	6760
	Q	6759
	R	6762
	S	6761
	AA	6763
	T	6764

WARRANTY

WARRANTY INFORMATION

When procedure applies to vehicles within the New Vehicle Limited Warranty, use the following:
Claim Type:	E1
Part Identifier:	2673
Damage Code:	2673 40 _ _ _* 1
Labor Operation:	26732599 = 65TU
Diagnostic Time:	Max. A-Time Allowed = 20 TU
Claim Comment: Input "As per Technical Bulletin 2013839" in comment section of Warranty Claim.
* Code per warranty vendor code policy.

REQUIRED PARTS AND TOOLS

Description	Part No:	Quantity
CD	MY99022VVR6CAT	1

No Special Tools required.

Fig 1: Control Module Tuning Form