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with respect to the correctness of information in this document. Copyright by AUDI AG.
◆ Adaption following replacement of dash panel insert and engine control unit => Page 192
6.10 - Establishing PIN
For security reasons, the immobilizer PIN is encoded. The encoded number (PIN = Personal Identification
Number) is made up of 7 digits.
The PIN can only be used with the vehicle diagnostic, testing and information system VAS 5051 as of basic
CD version V02.00.
The 7-digit PIN must be obtained by way of the appropriate Regional Sales Centre/importer on the basis of the
14-position immobilizer/engine control unit identification number.
The 14-position immobilizer/engine control unit identification number can be read out with the self-diagnosis
function.
The PIN is only valid for one day, after which a new number has to be requested. The PIN is of no use to the
customer or other dealerships.
The 4- digit PIN can no longer be requested in countries in which the online and fax call procedure has been
switched to the 7-digit PIN.
6.11 - Matching of vehicle keys
Notes:
◆ If new or additional ignition keys are required, they have to be matched to the immobilizer.
◆ All keys - including the existing authorised ones - have to be re-matched.
◆ It is particularly important to re-match all the remaining vehicle keys if any have been lost to ensure that the
lost key is no longer authorised to start the vehicle.
◆ If matching cannot be performed for all keys, for example when matching is required en route, customers
are to be informed of the necessity of subsequent re-matching at their local Audi Dealership.
◆ The number of keys already matched is displayed following selection of adaption function (channel 21) and
in measured value block 022.
◆ Once a key has been matched, it is blocked and cannot be matched to any other immobilizer system.
Requirement:
• All ignition keys available. If no old ignition key is available, refer to => "Procedure in the event of loss of
keys", Page 182 .
Sequence of operations
- Insert first key in ignition lock and switch on ignition.
- Establish immobilizer identification number by starting immobilizer self-diagnosis => Page 166 .
- On the basis of the 14-position immobilizer identification number, request 7-digit PIN from appropriate Sales
Centre/importer.
Note:
The PIN is only valid for one day, after which a new number has to be requested. The PIN is of no use to the
customer or other dealerships.
Audi A3 1997 ➤
Electrical system Self-diagnosis - Edition 02.2002
176 01 - Self-diagnosis
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