Ignition keys, matching (adaptation): Notes

WARNING: This page does not describe the selected car, but rather 27 other vehicles, including the 2002 Volkswagen Cabrio, 2001 Volkswagen Cabrio, 2000 Volkswagen Cabrio, 1999 Volkswagen Jetta, and 1999 Volkswagen Golf. However, it is still accessible from the selected car via links, so may be relevant.

NOTE:

If new or additional ignition keys are required, they must be adapted to the control module for anti-theft immobilizer.
Ignition keys for immobilizers of the 3rd generation are marked with an imprinted "W3"! For definitive immobilizer differentiation, the function "Check control module version" should always be performed. See VAG1551 SCAN TOOL (ST), CONNECTING AND SELECTING FUNCTIONS (CHECK CONTROL MODULE VERSION) .
Observe procedure for replacement of lock set and instrument cluster.
All ignition keys, including existing keys, must be re-adapted.
The number of adapted keys is indicated after selecting the adaptation function.
If only one key is adapted, the vehicle can be started immediately using this key. If more keys are adapted, the vehicle can only be started immediately using the last key adapted.
The Work Shop Code (WSC) of the VAG1551 is stored in the control module for immobilizer during adaptation of ignition keys.
Adaptation can be interrupted using the "C" button of the VAG1551 scan tool.
The number of keys currently adapted to the vehicle can be read from Measured Value Blocks. See READ MEASURING VALUE BLOCK (FUNCTION 08) .

Adaptation of ignition keys is automatically terminated if:

The number of keys to be adapted has been reached.
The ignition is switched on using a key that is already adapted and remains switched on for more than one second (DTC stored).
The allotted adaptation time of 60 seconds following adaptation of first key is exceeded (DTC stored).

Select function 02 "Check DTC memory". If no malfunctions are stored, key adaptation has been completed successfully.

NOTE: Proper completion of ignition key adaptation can be checked via function "Read measuring value block". See READ MEASURING VALUE BLOCK (FUNCTION 08) .