DTC memory (functions 02 and 05), checking and erasing: Notes
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If the voltage supply is interrupted, the engine control module loses all the "learned" and/or "basic" values for oxygen sensor control, idling speed and charge pressure. Therefore considerable driving characteristic problems may occur depending on vehicle mileage.
In this case:
- Perform idling check → Idling check
- Perform a longer test drive until the poor driving characteristics are eliminated.
Special tools, testers and auxiliary items required
- scan tool VAG1551 or mobile scan tool VAG1552 with cable VAG1551/3B