Audi A4 Owners & Service Manuals

Audi A4: Immobilizer

General Information

The anti-theft immobilizer system control module can depending on the vehicle be integrated in the following systems:

  • Instrument Cluster Control Module -J285-
  • Comfort System Central Control Module -J393-
  • Access/Start Authorization Control Module -J518-

Additionally depending on the vehicle the immobilizer contains following control modules:

  • Engine Control Module -J623-/Engine Control Module 2 -J624-
  • Transmission Control Module -J217-
  • Electrical Drive Control Module -J841-

- If the control module is replaced, select in the "Off-board Diagnostic Information System Service" the "control module replacing" function of the respective control module on the Vehicle Diagnostic Tester.

Faulty Transponder or Lost Key

  • The transponder is integrated in the ignition key and cannot be replaced separately.
  • If the transponder is faulty, the entire ignition key or the transmitter must be replaced.

- Order a replacement key through the distributor or importer with the transmitter with the vehicle-specific lock number using the VIN.

Immobilizer Generation 1, 2, 3 and 4:

- Perform in the "Off-board Diagnostic Information System Service" the function "vehicle key adaptation" or "vehicle key, immobilizer programing" from the Vehicle Diagnostic Tester.

- All vehicle keys must be adapted.

Immobilizer from Generation 5:

- Perform in the "Off-board Diagnostic Information System Service" the "immobilizer, servicing" and adapt the program to the vehicle key in the Vehicle Diagnostic Tester.

- All vehicle keys must be adapted.

Induction coil, replacing

Vehicles with a Mechanical Ignition Lock

  • The induction coil is integrated in the lock cylinder and cannot be replaced separately.
  • If induction coil is faulty, entire lock cylinder must be replaced.

- Order a lock cylinder through the distributor or importer using the VIN.

Vehicles with A Access/Start Authorization Switch -E415-

  • The induction coil is integrated in the Access/Start Authorization Switch -E415- and cannot be replaced separately.
  • If induction coil is malfunctioning, Access/Start Authorization Switch -E415- must be replaced.

Vehicles without An Ignition Lock

  • The induction coil is separate and can be replaced separately.

Lock Set, Replacement Procedure

Immobilizer Generation 1, 2 and 3.

- Perform in the "Off-board Diagnostic Information System Service" the function "vehicle key adaptation" or "vehicle key, immobilizer programing" from the Vehicle Diagnostic Tester.

- All vehicle keys must be adapted.

Immobilizer Generation 4

- Perform in the "Off-board Diagnostic Information System Service" the "immobilizer activating/new identity" or "New Identity" in the Vehicle Diagnostic Tester.

- All vehicle keys must be adapted.

Immobilizer from Generation 5

- Perform in the "Off-board Diagnostic Information System Service" the "immobilizer, servicing" and adapt the program to the vehicle key in the Vehicle Diagnostic Tester.

- All vehicle keys must be adapted.

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