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).