Perform function "03 Output Diagnostic Test Mode (DTM)"

Indicated on display:

Fig 1: Output Diagnostic Test Mode, Scan Tool Display: From 09.94 And Up (1 Of 5)

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- Press keys 0 and 3

Indicated on display:

Fig 2: Output Diagnostic Test Mode, Scan Tool Display: From 09.94 And Up (2 Of 5)

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- Confirm entry with the Q button.

Indicated on display:

Fig 3: Output Diagnostic Test Mode, Scan Tool Display: From 09.94 And Up (3 Of 5)

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The engine stops and the central locking must switch to "unlock".

Indicated on display:

Fig 4: Output Diagnostic Test Mode, Scan Tool Display: From 09.94 And Up (4 Of 5)

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- Press -> button.

During test and assembly work DTCs can be recognized from other control modules like e.g. plug disconnected. Therefore on completion the DTC memories of all control modules must be checked and erased. To do this:

- Press key 0 twice for address word "Automatic test sequence" and confirm entry with Q button. The V.A.G 1551 transmits all known address words one after the other.

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

Any system DTCs that are stored will be displayed one after the other and printed out. The V.A.G 1551 will then transmit the next address word.

Indicated on display (Operating modes 1 and 2 are displayed alternately)

Fig 5: Output Diagnostic Test Mode, Scan Tool Display: From 09.94 And Up (5 Of 5)

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NOTE: If a DTC is recognized:

1. Repair malfunction
2. Erase DTC memory (function 05).
3. Check DTC memory again (function 02).