A8L Quattro Sedan V8-4.2L (AUX) (2001)
Ignition Key In Signal: Service and Repair
Adaptation of Vehicle Keys
NOTE:
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If new or additional ignition keys are required, they must be adapted to the anti-theft immobilizer
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All ignition keys, including those that were previously authorized, must be re-adapted.
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Especially when a key has been lost, all vehicle keys should be re-adapted, since this will render the lost key unauthorized for vehicle start.
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If it is not possible to adapt all keys for some reason, i.e. during a trip, the customer must have this done later at his/her local Audi dealership.
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The number of adapted keys is indicated after selecting the adaptation function (channel 21) and also in measuring value block 022.
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Adaptation can be interrupted using the "C" button of the VAG1551 scan tool.
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Once a key is adapted, it is locked and cannot be adapted to another immobilizer system.
Requirements
All keys available. If there are no ignition keys available, see "Procedure for lost key".
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Insert first key in ignition lock and switch on ignition.
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Connect VAG1551 scan tool and initiate OBD of the anti-theft immobilizer using address word "17".
After control module identification is displayed:
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Press -> button.
Indicated on display
Rapid data transfer
HELP
Select function XX
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Perform login procedure for instrument cluster.
Indicated on display
Rapid data transfer
HELP
Select function XX
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Press buttons -1- and -0-. This selects "Adaptation", function 10.
Indicated on display
Rapid data transfer
Q
10 - Adaptation
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Press -Q- button to confirm input.
Indicated on display
Adaptation
Insert channel number XX
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Press buttons -2- and -1-. This selects the channel for adapting keys, -21-.
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Press -Q- button to confirm input.
If displayed:
Function is unknown or
->
cannot be carried out at the moment
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Repeat adaptation with entry of secret number.
Indicated on display
Channel 21 Adaptation 2
->
<-1 3->