| Immobilizer self-diagnosis |
Caution | l
| In Germany the “online request with GeKo-VW” replaces the request of the 7 character PIN as of 01.07.2004. |
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| In other countries the “online request” replaces the request of the 7 character PIN as of 01.10.2004. |
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Note | t
| Immobilizer self-diagnosis is now only possible with vehicle diagnosis, testing and information system -VAS 5051A- or the vehicle diagnosis and service information system -VAS 5052-. |
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| Not all self-diagnosis functions are possible due to the change-over to “online request with GeKo-VW”. |
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| The functions which are no longer possible are replaced by the programs in “guided functions” → Chapter. |
| The Passat features a second-generation immobilizer |
| Communications between the immobilizer control unit and the engine control unit take place on the W-wire. |
| The immobilizer electronics consist of: |
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| an immobilizer control unit |
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| a matched engine control unit |
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| a reader coil on the ignition lock |
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| matched ignition keys with electronic components (transponder and response reader memory) |
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