Volkswagen Workshop Service and Repair Manuals

Notes:

• ◆ If new or additional ignition keys are required they must be matched to the immobilizer and convenience system control electronics.
• ◆ The matching procedure must always be carried out for all the ignition keys, including the existing ones.
• ◆ The number of keys already adapted will be displayed when the adaption function is selected.
• ◆ With the introduction of this generation of convenience system it is possible to programme additional functions. The functions and the programming are described from Page 01-208 .
• ◆ The matching can be interrupted with the "C" key of the V.A.G 1551.

Prerequisites

• ◆ All ignition keys available. If no old ignition key is available see "Lost key procedure",

=> Electrical system self-diagnosis; Repair group 01; Self-diagnosis for Immobilizer.

• ◆ Key fob with covered secret number is available, if not see "Establishing secret number",

=> Electrical system self-diagnosis; Repair group 01; Self-diagnosis for Immobilizer.

• ‒ Insert correct profile ignition key in the ignition lock.
• ‒ Connecting fault reader .

The adaption shown here is only an example.

• ‒ Press keys 1 and 0 (10 selects function "Adaption").

• ‒ Confirm entry with the Q key.

• ‒ Press keys 0 and 0 (all keys are erased with channel number 00).
• ‒ Confirm entry with the Q key.

Note:

It is not possible to match a new or additional key(s) without erasing existing learnt/matched key(s).

• ‒ Confirm entry with the Q key.

• ‒ Press ⇒key.

• ‒ Press keys 1 and 0 (10 selects function "Adaption").

• ‒ Confirm entry with the Q key.

• ‒ Press keys 0 and 1 (all keys are "learnt" with channel number 01).

• ‒ Confirm entry with the Q key.

The top line displays number of keys to be "learnt" (standard =1). Select number of keys with keys 1 and 3.

• ‒ Press ⇒key.

• ‒ Press the 0 key four times and then enter the number of all ignition keys to be matched, including the existing key, (e.g. 00003); max. possible Qty. 4.
• ‒ Press ⇒key.

• ‒ Confirm entry with the Q key.

• ‒ Confirm entry with the Q key.

• ‒ Press ⇒key.

• ‒ A button must be pressed once, for at least 1 second, on each of the radio wave keys to be "learnt" (in example above, 3 keys).
• ‒ Switch off ignition and remove ignition key.
• ‒ Perform functional check (e.g. 3) of radio wave keys.

Note:

All 3 keys (see example) can be "learnt" in one matching sequence.

15 seconds must not be exceeded when matching all ignition keys (pressing a button).

A successful adaption can be determined via Read measured value block, function 08, display group number 013, Page 01-193 . When operation the radio wave unit both of first measurement values must have the status OK. Simultaneously the last measurement value will show the positional number of the key (i.e. first, second, third, fourth key).

If the remote control key is operated several times the third display -no measured value- changes to "OK".

The adaption of ignition keys is automatically terminated when:

• ◆ number of keys to be adapted is reached.
• ◆ a button of one of the keys to be "learnt" is pressed frequently.
• ◆ Permissible matching period of 15 seconds is exceeded (fault is stored).

• ‒ Select function 02 "Interrogate fault memory". If there is no fault stored, the matching of the keys has been successfully completed.
• ‒ Press keys -0- and -6- to end the output.

• ‒ Confirm entry with the Q key.

• ‒ Switch off ignition.
• ‒ Disconnect connector to fault reader V.A.G 1551.