2001 Volkswagen Passat GLX 4Motion Update Programming for Catalytic Converter System

2001 Volkswagen Passat GLX 4Motion

UPDATE PROGRAMMING FOR CATALYTIC CONVERTER SYSTEM

CONDITION

Update Programming for Catalytic Converter System

On Board Diagnosis (OBD) for the catalytic converter system may be set too sensitive causing fault codes with out a defect in the catalyst system.

MIL ON, DTCs P0420, P0421, P0422, P0430, P0431 or P0432 Stored in ECM.

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. Download File PDF


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