volkswagen Workshop Repair Guides

Volkswagen Workshop Service and Repair Manuals

Immobilizer control unitJ362 > < Immobilizer
General description
General description
  Note
Additional information:
→ No.423
General description:
The Golf is equipped with a fourth-generation immobiliser with online link and download. The main component of the fourth generation immobilizer is a central database, in which all of the theft-relevant data from the participating control units is stored. Adapting the control units associated with the immobiliser is not possible without an online link to this database.
FAZIT system test → Chapter
t  A PIN request for the immobiliser components via fax or temporary access authorisation to the components is not available.
t  All components associated with the immobilizer must be adapted online.
t  All – including re-ordered – ignition keys are pre-coded to a specific vehicle in the factory and can only be adapted to this vehicle.
t  The relevant vehicle identification number must be specified when re-ordering ignition keys.
t  It is no longer possible to adapt components of other brands for use in Volkswagen vehicles.
Immobilizer components:
t  Immobilizer control unit -J362- → Chapter
t  Engine control unit -J623- → Rep. gr.23
t  Ignition key → Chapter
New identity on renewing all components of immobilizer system → Chapter
Immobiliser control unit -J362- functions:
t  Communication between all components associated with the immobilizer.
t  Encryption of data between associated control units.
Fault detection and fault display:
The immobilizer is equipped with self-diagnosis, which makes fault finding easier.
To localise faults, refer to chapter entitled „Vehicle diagnosis, testing and information system“ and use „Guided fault finding“ function.
   

Immobilizer control unitJ362 > < Immobilizer