Operation CHARM: Car repair manuals for everyone.

Immobilizer






Immobilizer

CAUTION!
Before beginning repairs on the electrical system:

Obtain the anti-theft radio security code.

Switch the ignition off.

Disconnect the battery Ground (GND) strap.

After reconnecting vehicle battery, re-code and check operation of anti-theft radio. Also check operation of clock and power windows according to Repair Information and/or Owner's Manual.

Steps after reconnecting voltage supply => Battery.

The control module for immobilizer is integrated into the instrument cluster, i.e. the control module for immobilizer is replaced together with the instrument cluster => [ Instrument Cluster ] Instrument Cluster.

=> [ Induction Coil, Replacing ]

=> [ Lock Set or Instrument Cluster ]

Induction Coil, Replacing

The induction coil is connected to the lock cylinder and cannot be replaced individually.

The induction coil and lock cylinder must be replaced together.

- Order a new lock cylinder with vehicle specific lock number via the distributor or importer.

Lock Set or Instrument Cluster

To ensure later identification of the anti-theft immobilizer, the following steps must always be performed when replacing the lock set or instrument cluster.

Lock Set with 2 Part Sticker

The sticker on key tag of new locking set serves to identify mechanical locking.

- Remove right sticker - 2 - (with bar-code) from key ring of new lock set and destroy it.





- Remove remaining left sticker - 1 - (without bar-code) from new key ring and place it to customer's key ring in place of the old left sticker.

Immobilizer Control Module Integrated in Instrument Cluster

For safety reasons, secret number for immobilizer is encoded. The encoded secret number (PIN = Personal Identification Number) has 7 digits.

PIN can only be used with tester (VAS5051) Basis CD version 02.00.

The 7-digit secret number (PIN) must be obtained using the 14-digit identification number of immobilizer and of Engine Control Module (ECM) via the current distributor or importer.

The 14-digit identification number of immobilizer and of Engine Control Module (ECM) can be checked using On Board Diagnostic (OBD).

PIN is only valid on the day it was requested, after that a new PIN must be obtained. PIN is worthless for customers or other operations.

In all countries which have changed to online and fax request for 7-digit PIN, the request for 4-digit secret number is no longer possible.