Keyless Entry: Service and Repair

RADIO FREQUENCY REMOTE CONTROL, PROGRAMMING IGNITION KEYS

Notes:
^ If a new or additional ignition keys are required, they must be adapted (matched) to the control electronics.
^ The adaptation procedure must always be carried out for all the ignition keys, including the existing ones.
^ The number of keys already programmed will be displayed when "Adaptation" (matching) function 70 is selected.
^ The matching can be interrupted with the -C- button of the VAG 1557.

Requirements
^ All ignition keys available.
^ Key fob with covered secret number is available.

Procedure

- Insert mechanically programmed ignition key in ignition lock.

- Connect VAG 1551 scan tool.

- Switch ignition on.

- Switch printer on with "PRINT" button (warning lamp in button lights up).

Indicated on display:

- Press buttons -3- and -5- to insert "Central Locking" address word 35.

Indicated on display:

- Press -Q- button to confirm input.

Indicated on display:

The control module identification is indicated on the VAG 1551 scan tool display.:

- Press -> button.

Note: The Adaptation shown here is only an example.

Indicated on display:

- Press buttons -1- and -0- to select "Adaptation" function 10.

Indicated on display:

- Press -Q- button to confirm input.

Indicated on display:

- Press buttons -0- and -0- (all keys are erased with channel number 00).

- Press -Q- button to confirm input.

Note: It is not possible to match a new or additional key(s) without erasing existing learned/programmed key(s).

Indicated on display:

- Press -Q- button to confirm input.

Indicated on display:

- Press -> button.

Indicated on display:

- Press buttons -1- and -0- to select "Adaptation" function 10.

Indicated on display:

- Press -Q- button to confirm input.

Indicated on display:

- Press buttons -0- and -1- (all keys are programmed with channel number 01).

Indicated on display:

- Press -Q- button to confirm input.

Indicated on display:

- The top line displays number of keys to be programmed (standard --1). Select number of keys using buttons -1- and -3.


- Press -> button.

Indicated on display:

- Press -0- key four times and enter number of all ignition keys to be programmed, including existing key, (e.g. 00003); max. possible qty. 4.

- Press -> button to confirm input.

Indicated on display (number of radio frequency keys to be programmed):

- Press -Q- button to confirm Input.

Indicated on display:

- Press -Q- button to confirm input.

Indicated on display:

- Press -> button to confirm input.

Indicated on display:

- A button must be pressed once on each of the radio frequency keys to be programmed (in example above, 3 keys).

- Switch ignition off and remove ignition key.

- Perform functional check (e.g. 3) of radio frequency keys.

Notes:
^ Successful adaptation can be confirmed by Read Measuring Value Block (function 08), display group 009, or display group 013.
^ All 3 keys can be programmed in one adaptation cycle.
^ Adaptation of all keys (pressing a button) must occur within 15 seconds.
The matching of ignition keys is automatically completed when:
^ Number of keys to be programmed is reached.
^ A button of one of the keys to be programmed is pressed frequently.
^ Permissible matching period of 15 seconds is exceeded (DTC is stored).