| Guided functions for immobilizer |
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| 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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| Immobilizer “adaption” is now only possible with vehicle diagnosis, testing and information system -VAS 5051A- or vehicle diagnosis and service information system -VAS 5052- in operating mode “Guided functions”. |
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| Observe additional information and prerequisites for “online request with GeKo-VW” → Chapter. |
| Up to 08.97: a first generation immobilizer is installed in the Polo. |
| Communications between the immobilizer control unit and the engine control unit take place on the W-wire. |
| From 09.97 to 05.00: a second generation immobilizer is installed in the Polo. |
| Communications between the immobilizer control unit and the engine control unit take place on the W-wire. |
| From 10.99: a third generation immobilizer is installed in the Polo. |
| Depending on engine fitted there are two different versions installed. |
| On one version the immobilizer control unit and engine control unit communicate with one another via the data bus, on the other versions this communication is via the W-wire. |
| The immobilizer electronics consist of: |
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| An immobilizer control unit. |
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| An adapted (matched) engine control unit. |
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| A reader coil on ignition lock. |
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| And adapted (matched) ignition keys with electronic components (transponder and response reader memory). |
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