Automatic Test Sequence

Automatic Test Sequence
Malfunctions can be recognized from other control modules. Therefore on completion the DTC memories of all control modules must be checked and erased.

- Press button -0- twice for address word "Automatic test sequence" and confirm entry with -Q- button. VAG 1551 scan tool transmits all known address words one after another.

When a control module answers with its identification the number of stored malfunctions appears on the display or "No malfunction recognized" appears.

Any system malfunctions that are stored will be displayed one after the other and printed out. The VAG 1551 will then transmit the next address word.

The automatic test sequence has ended when indicated on display

V.A.G ON BOARD DIAGNOSTIC HELP
1 - Rapid data transfer
2 - Blink code output

- Erase all DTC memories and then road test vehicle.

During the road test the following operating conditions must be fulfilled:
- The coolant temperature must exceed 80 °C.
- When the temperature is reached, the operating conditions: idling, part throttle, wide open throttle and overrun must be attained several times.
- At wide open throttle the engine speed must exceed 3500 rpm.

- Again check DTC memories of all control modules using the "automatic test sequence".

If no DTCs are stored:
- Press -> button.

Indicated on display


Rapid data transfer HELP
Select function XX


- Press buttons -0- and -6- to select "End output" and confirm entry with -Q- button.