When you select this function the “Abrites Diagnostics for VAG” tries to establish a diagnostic session with the “EZS-Kessy / Entry And Start Authorization” using KWP2000 over TP 2.0.

This special function is dedicated to the Q7/ A6/ Allroad models and provides the following functions:

• Key learning. In most cases it requires a pre-programmed key (one using VIN) which can normally be purchased from a VW / Audi dealership. This function can also be performed without a dealer key, however you will be required to create a dealer key. You can do that with the Abrites dealer key special function and a PROTAG programmer.

• Read the EZS Kessy EEPROM (2KB)

• Write the EZS Kessy EEPROM (2KB) containing the PIN, component security and ECU synchronization.

• Change the VIN inside the EZS Kessy EEPROM.

• Program a blank key, so that it becomes a dealer key.

IMPORTANT: In order to perform any functions with the EZS-Kessy you need to have one of the following:

• The login (PIN) of the car and the first 6 bytes of the component security. The component security is normally 7 bytes, however the 7th byte is not required. The login and component security bytes can normally be read from the ECU(until 2008/2009). This applies for all cars with EDC16x/ MED9x/ ME7x/ EDC17/ MED17 ECUs. You can read the login and component security using the “Engine control unit” special function or from a decoded EEPROM dump using a programmer. It is also possible for the software to read all this information automatically when you press the “Autodetect” button.

• In this case the software will connect to the ECU and read the component security and login filling the required fields automatically.

• It is possible that the component security cannot be read from the ECU. In such cases you can use the car’s working key (provided you have one) and obtain the component security and PIN from the EZS-Kessy. This is done using the “Get component security from EZS-Kessy by OBDII” function.

• If the car has no working key you will need to open the EZS-Kessy and read its EEPROM with a programmer. Then you have to select “Get component security from EZS Kessy” and load the EZS Kessy dump. Once that is done you can learn or create a dealer key.

IMPORTANT: Provided that the car has no working key and you can not turn the ignition ON in order to get the ECU to communicate you will need to short the fuses as described in the appendix(pin 1 and 16 of the OBDII). After obtaining the component security bytes you can restore the fuses.

IMPORTANT: If the car has no working key communication with the EZS-Kessy is only possible if you press the brake pedal.

NOTE: In order to perform any functions with the EZS-Kessy you will need to input the login and the component security bytes, or to load the EZS-Kessy from the EEPROM dump, or to get the component security by OBDII from EZS-Kessy. If that is not done any attempts to perform any actions will result in an error.

IMPORTANT: If a dump form the EZS-Kessy is available the Sokymat 8E transponder can be reset from the Tag Key Tool software and the key could be then re-used.