Immobilizer IV Key Matching

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This procedure details how to match new keys to VW/Audi/Seat/Skoda vehicles with Immobilizer IV.

Contents

Determining IMMO-ID & VIN

[Select]
[25 - Immobilizer]
[Meas. Blocks - 08]
Select Block 081.
[Go!]
The first 17-digit string is the VIN. The second 14-digit string in the Immo-ID..
[Done, Go Back]
[Close Controller, Go Back - 06]


Key Matching

Prerequisites:

  • All keys are either brand new or were adapted to this car (IMMO-ID) before.
  • You can match up to 8 keys.
  • While adapting each key, make sure to place the other keys away from the ignition lock (reader coil). The passenger seat is an adequate place.
  • Battery voltage at least 12.0 V.

[Select]
[25 - Immobilizer]
[Meas. Blocks - 08]
Select Block 001.
[Go!]
The value in field 3 must be Yes. If value is No, the key is not capable of being adapted to Immobilizer.
You can check each key in this manner.

Select Block 003.
[Go!]
Make sure the shown lock times in field 1, 2 and 3 are 0 (each field represents a time in minutes).

  • If the lock times are NOT 0:
    • Do NOT switch off the ignition!
    • Allow the car to sit for AT LEAST the number of minutes that were indicated by the fields 1-3.

If lockout time was present check Group 1.3 as mentioned above to confirm "Yes" is shown.
[Done, Go Back]

[Security Access - 16]

  • 4-digit PIN
    • Enter zero followed by the 4-digit PIN. For example, if your PIN is 1234, enter 01234.

[Do it!]

[Adaptation - 10]
Enter 001 in "Channel Number".
[Read]
The "Stored Value" is the number of keys currently matched.
Enter a "new value" corresponding to the total number of keys to be matched, including any existing keys.
The old keys are automatically being cleared.
[Save]
[Done, Go Back]
[Close Controller, Go Back - 06]

  • Repeat the following steps until all keys have been matched:
    • Switch ignition off and remove key.
    • Insert next key to ignition and switch ignition on again.
    • The warning light for the Immobilizer will light up for ~2 seconds, then go out.

Note: The above steps after saving the adaptation, should not exceed 60 seconds!


VW Passat (3C) Immobilizer Key Matching

Prerequisites:

  • At least one original matched key is present.
  • All keys are either brand new (meaning ordered by VIN at the VW Dealer) or were adapted to this car (IMMO-ID) before.
  • While adapting each key, make sure to place the other keys away from the ignition lock (reader coil). The passenger seat is an adequate place.
  • Battery voltage at least 12.0 V.

The Measuring block Prerequisites above apply to the VW Passat (3C) Immobilizer system however the Instrument Cluster may begin by showing 0-2 (using a 2 key example) so the 1st key may need to be reinserted as follows:

[Select]
[25 - Immobilizer]
[Security Access - 16]

  • 4-digit PIN
    • Enter zero followed by the 4-digit PIN. For example, if your PIN is 1234, enter 01234.

[Do it!]
[Adaptation - 10]
Enter 001 in "Channel Number".
[Read]
The "Stored Value" is the number of keys currently matched.
Enter a "new value" corresponding to the total number of keys to be matched, including any existing keys.
[Test]
[Save]

  • DO NOT exit the control module. Repeat the following steps until all keys have been matched:
    • Observe the Instrument cluster display for feedback related to the key position and the total number of keys.
      • For example 0-2 means zero of the two total keys were learned. If this is the case you will need to reinsert that key to match it to position #1.
      • Alternatively, 1-2 would mean one of the two total keys were learned. It this is the case you do NOT have to reinsert that key because it was already learned and matched to position #1.
    • Switch ignition off and remove key.
    • Insert next key to ignition and switch ignition on again.

Observe the Instrument cluster display for feedback related to the key position again and repeat until all keys are matched.
[Done, Go Back]
[Close Controller, Go Back - 06]
ST?ID=53293

Note; If a original matched key is NOT present in a VW Passat (3C) vehicle please see this forum entry: http://forums.ross-tech.com/showthread.php?4386-Passat-B6-Key-Matching&p=42718&viewfull=1#post42718




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