WIKI

Normally, there are several key-learning procedures which are applied depending on the car type and year of production. You can check in the appendix section which car belongs to which key-learning procedure.

All key-learning procedures are listed below


Procedure 1 – Normal key learning procedure – for vehicles from 1996 to 09/2006 year via K-line.

Learning of a transponder/key to the car requires only the PIN code and after the key-learning procedure (actually adaptation on channel 21) is finished, it is necessary to turn ignition ON with each key you want to learn. No preparation of the transponder/key is needed, instead a new transponder/key should be used. You must use the following Keys or transponders – TP05,TP08

Note: some of the new vehicles need to remain with the ignition ON for five minutes before starting the key learning procedure (VW Golf5, Skoda Octavia II, VW Touaran, Seat Toledo 2004+,...). Other vehicles might need to stay more than 30 minutes with the ignition ON until programming becomes allowed (Skoda Fabia 2006+, Skoda Roomster 2006+, Skoda Superb 2007+, VW Polo 2006+, Seat Ibiza 2006+)


Procedure 2 – for CAN vehicles till 09/2006 year – VW, SEAT,SKODA via CAN

Learning of a transponder/key to the car requires only the PIN code and after the key-learning procedure (actually adaptation on channel 1) is finished, it is necessary to turn ignition ON with each key you want to learn. No preparation of the transponder/key is needed, instead a new transponder/key (TP22/TP23/TP24 depending on the type of the car) should be used.

For SEAT you must use a Virgin key or a Transponder – TP22, For VW you must use a Virgin key or a Transponder – TP23

For SKODA you must use a Virgin key or a Transponder – TP24


Procedure 3 – for VW/Seat/Skoda CAN vehicles 2006+, Passat B6, Audi A3 CAN

Learning of a transponder/key to the car requires only the PIN code and after the key-learning procedure (actually adaptation on channel 11) is finished, it is necessary to turn ignition ON with each key you want to learn. Preparation of the transponder/key is needed (so called dealer key) using the component security (CS) and the car type (VW/Seat/Skoda/Audi).should be used.


Procedure 3.1 – Extracting the 7th byte using TA31 Sniffer (mainly used in VW Passat B6)

Using the TA31 Sniffer, you will be able to extract the 7th byte in a matter of seconds. The procedure below describes all the steps to be performed.

  1. Open the Abrites Diagnostics for VAG Software

  2. Open the “Key Learning” Special function and click on “Autodetect Login/Security code” and read the 6 Bytes on the next screen”

Abrites Diagnostics for VAG
  1. Select “Automatically trying to find the 7th byte” and insert a blank key into the programmer:
Abrites Diagnostics for VAG
  1. You will be prompted to insert the TA31 sniffer into the programmer:
Key-learning procedures
  1. Remove the key from the programmer and make

IGN ON together with the TA31 programmer

Key-learning procedures
  1. The following image will show you how the TA31 should be positioned towards the IGN lock
Abrites Diagnostics for VAG
  1. You will be prompted to put the TA31 Sniffer again into the PROTAG programmer:
Abrites Diagnostics for VAG
  1. The software will start calculating the 7th byte:
Key-learning procedures
  1. The 7th byte was found and you will be prompted to insert either a transponder or a blank key into the programmer to program it:
Key-learning procedures

Once this is done, you can proceed with learning the prepared key to the car.


Procedure 4 – for Audi A4 (RB8)

Audi vehicles equipped with an instrument cluster BOSCH RB8 with integrated immobilizer require a pre-coded key (using the 12 byte CS). Using this procedure the data necessary for the preparation of the transponder/key are read from the immobilizer automatically. Also the PIN code needed for the key-adaptation is read automatically.


Procedure 5 - For vehicles with Hitag2 Key (transponder) – VW Touareg, VW Phaeton, Bentley Continental, Porsche Cayenne, Audi A8

Learning of a transponder/key to the car requires only the PIN code and after the key-learning procedure (actually adaptation on channel 1) is finished, it is necessary to hold each key in CRANK position until the steering is unlocked.

For vehicles till 2007 you must use a virgin transponder PCF7936 or a virgin key, no need for other special preparation. If you use a Transponder – you only needed to switch it in Cipher (Crypto) mode. You can use your Key programmer for that purpose if you have one. This is done by replacing 0x06 with 0x0E in the first byte of the configuration page (Configuration page is page 3 where page 0 is the transponder ID, and pages 1 and 2 are the secret key). If this value is already 0x0E then the transponder is already in cipher mode.

For vehicles after 2007 and Audi A8 2002+ the transponder should be pre-coded using the CS.


Procedure 6 – for vehicles Audi A6,Q7,Allroad 2005+

For these vehicle there is a separate special function called “EZS-Kessy A6/Q7” where the keylearning procedure is performed. Megamos 8E based transponder/key is used which is precoded using 12 byte CS. The key-learning procedure starts adaptation of the this transponder/key and the user should give ignition on with each key.


Procedure 7 – UDS dashboards

For these vehicles there is a separate special function where the key-learning is performed. Please refer the the “Instrument CAN” special function manual.

These are typically the models produced after 2009. The immobilizer is integrated into the dashboard, and the required transponder for that cars is a Megamos 48 Crypto.

Megamos 48 keyless-go keys ( e.g. VW Scirroco, Jetta, Golf 6, Tuguan, Touaran 2010+ and others).


Procedure 8 – A4/A5/Q5 2007+ and A6/A7/A8/VW Touareg 2010+

For these vehicle there is a separate special function called “BCM2 A4/A5/Q5” where the keylearning procedure is performed. Hitag2Ext key is used which is pre-coded. The key-learning procedure starts adaptation of the this transponder/key and the user should give ignition on with each key.