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Audi A3 1997 ➤
Electrical system Self-diagnosis - Edition 02.2002
-> Display on VAS 5051:
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From list -1- select diagnosis function "06 - End of output".
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Switch off ignition.
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Insert next key in ignition lock and switch on ignition.
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Repeat procedure until all keys have been matched.
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On vehicle key matching, the fixed code of the respective key (transponder) is matched to the immobilizer.
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Following key matching, interrogate fault memory => Page
If there are no faults stored, then "Key matching" function has been successfully completed.
Ignition key matching is terminated automatically:
◆ On reaching the number of keys to be matched
◆ If the ignition is switched on again and left switched on for more than 1 s using a key which has already
been matched (fault is stored)
◆ If the permitted matching time of 30 s per key as of switching on the ignition is exceeded (fault is stored)
◆ If a fault is stored during key matching
4.12 - Procedure in the event of loss of keys
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Make/order replacement ignition keys on the basis of the lock number.
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Match all vehicle keys => Page
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On vehicles with remote control, match all keys to remote control unit
=> Body Self-diagnosis; Repair Group 01; Central Locking Self-diagnosis; Matching of/cancelling remote con‐
trol keys Central Locking Self-diagnosis Matching of/cancelling remote control keys
4.13 - Adaption following replacement of dash panel insert
Note:
The dash panel insert (with integrated immobilizer) is adapted to the engine control unit. Adaption to the engine
control unit must be performed if the dash panel insert is replaced.
Requirement:
•
Vehicle diagnostic, testing and information system VAS 5051 connected up and vehicle self-diagnosis se‐
lected => Page
1
Sequence of operations
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Insert old (authorised) ignition key in ignition lock and switch on ignition.
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Establish immobilizer identification number by starting immobilizer self-diagnosis at new dash panel insert
=> Page
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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.
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Match all vehicle keys => Page
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01 - Self-diagnosis
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Protected by copyright. Copying for private or commercial purposes, in part or in whole, is not
permitted unless authorised by AUDI AG. AUDI AG does not guarantee or accept any liability
with respect to the correctness of information in this document. Copyright by AUDI AG.
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