Specifications

269

GENERAL OPERATION

SYSTEM DESCRIPTION

The VAG group immobiliser system consists of an immobiliser ECU which

controls the recognition of keys and the Engine Management ECU system.

The Immobiliser ECU enables up to 8 keys to be programmed and are

recognised via the transponder aerial mounted around the Ignition lock.

If the keys are lost or a replacement Engine Management ECU is fitted then the

transponder keys will need programming so that the ECU memories recognise

the codes.

PASS CODE

The pass codes are now being refused by VW and AUDI dealers which is causing

major issues for customers and other diagnostic users. If you do get a 7 digit

code, this can be converted using the FREE 7 to 4 digit converter on our web

site.

If you have Pin code extraction software, you may also be able to read the 4

digit code from the ECU memory, and further work and development on this is

on an ongoing basis.

SYSTEM IDENTIFICATION

To identify the correct system, check to see whether the Dashboard has the

following symbol when the ignition is on :

SYSTEM 1 : DOES NOT HAVE THE SYMBOL

SYSTEM 2 : DOES HAVE THIS SYMBOL