Difference between revisions of "Immobilizer IV ECU Swapping"

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'''This procedure details how to change the Engine Control Unit (ECU) on VW/Audi/Seat/Skoda vehicles with Immobilizer IV.'''
 
'''This procedure details how to change the Engine Control Unit (ECU) on VW/Audi/Seat/Skoda vehicles with Immobilizer IV.'''
  
−
== Determining IMMO-ID & VIN (ECU) ==
+
== Determining VIN (ECU) & IMMO-ID/Challenge ==
  
 
'''[Select]'''<br>
 
'''[Select]'''<br>
Line 9: Line 9:
 
Select Block 081.<br>
 
Select Block 081.<br>
 
'''[Go!]'''<br>
 
'''[Go!]'''<br>
−
''The first 17-digit string is the VIN. The second 14-digit string in the Immo-ID.''.<br>
+
''The first 17-digit string is the VIN. The second 14-digit string in the Immo-ID (does not apply for all models).''<br>
 
'''[Done, Go Back]'''<br>
 
'''[Done, Go Back]'''<br>
 +
 +
''On models which do not have an IMMO-ID you need to use the IMMO-Challenge instead.''<br>
 +
'''[Advanced ID - 1A]'''<br>
 +
''See the field IMMO-Challenge for the current value, keep in mind that the challenge changes with every ignition cycle!''<br>
 
'''[Close Controller, Go Back - 06]'''<br>
 
'''[Close Controller, Go Back - 06]'''<br>
  
  
−
== Determining IMMO-ID & VIN (Instrument Cluster) ==
+
== Determining VIN (Instrument Cluster) & IMMO-ID/Challenge  ==
  
 
'''[Select]'''<br>
 
'''[Select]'''<br>
Line 21: Line 25:
 
Select Block 081.<br>
 
Select Block 081.<br>
 
'''[Go!]'''<br>
 
'''[Go!]'''<br>
−
''The first 17-digit string is the VIN. The second 14-digit string in the Immo-ID.''.<br>
+
''The first 17-digit string is the VIN. The second 14-digit string in the Immo-ID (does not apply for all models).''<br>
 
'''[Done, Go Back]'''<br>
 
'''[Done, Go Back]'''<br>
 +
 +
''On models which do not have an IMMO-ID you need to use the IMMO-Challenge instead.''<br>
 +
'''[Advanced ID - 1A]'''<br>
 +
''See the field IMMO-Challenge for the current value, keep in mind that the challenge changes with every ignition cycle!''<br>
 
'''[Close Controller, Go Back - 06]'''<br>
 
'''[Close Controller, Go Back - 06]'''<br>
  
  
−
== Engine Control Unit (ECU) Swapping (Used ECU) ==
+
== Engine Control Unit (ECU) Swapping (USED ECU) ==
  
 
'''<u>Prerequisites:</u>'''<br>
 
'''<u>Prerequisites:</u>'''<br>
−
* The NEW (USED) cluster is installed in the car.
+
* The '''NEW (USED)''' ECU is already installed in the car.
 
* Battery voltage at least 12.0 V.
 
* Battery voltage at least 12.0 V.
 
* All relevant coding and adaptation values have been transferred from the OLD (ORIGINAL) ECU to the NEW (USED) ECU.
 
* All relevant coding and adaptation values have been transferred from the OLD (ORIGINAL) ECU to the NEW (USED) ECU.
 
* Make sure to have BOTH PIN's, from the OLD (ORIGINAL) and the NEW (USED) ECU.
 
* Make sure to have BOTH PIN's, from the OLD (ORIGINAL) and the NEW (USED) ECU.
−
* Make sure to have the Radio Code (for factory radios only).
 
  
  
Line 41: Line 48:
  
 
'''[Security Access - 16]'''<br>
 
'''[Security Access - 16]'''<br>
−
''For the following procedure, '''use the PIN of the NEW (USED)''' instrument cluster.''<br>
+
''For the following procedure, '''use the PIN of the NEW (USED)''' ECU.''<br>
−
''There are 2 possibilities how to enter a PIN, choose the one that applies for you.''<br>
+
* '''4/5-digit PIN'''
−
* '''4-digit PIN'''
+
** The PIN needs to be entered as 5-digit number. ''For example, if your PIN is 1234, enter 01234.''
−
** Enter zero followed by the 4-digit PIN. ''For example, if your PIN is 1234, enter 01234.''
 
−
* '''7-digit PIN'''
 
−
** '''[Use 7-digit PIN/SKC]'''
 
−
** Enter the 7-digit PIN, Date on which the PIN was generated by the dealer, along with the Workshop Code (WSC) and the Importer number of the dealer that generated the code.
 
−
** '''[OK]'''
 
−
** VAG-COM will validate the data you have entered and return you to the Login screen, where the Login Code will show as "XXXXX".
 
 
'''[Do it!]'''<br>
 
'''[Do it!]'''<br>
  
Line 59: Line 60:
 
Enter 050 in "Channel Number".<br>
 
Enter 050 in "Channel Number".<br>
 
'''[Read]'''<br>
 
'''[Read]'''<br>
−
''For the following procedure, '''use the PIN of the OLD (ORIGINAL)''' instrument cluster.''<br>
+
''For the following procedure, '''use the PIN of the OLD (ORIGINAL)''' ECU.''<br>
−
''There are 2 possibilities how to enter a PIN, choose the one that applies for you.''<br>
+
* '''4/5-digit PIN'''
−
* '''4-digit PIN'''
+
** The PIN needs to be entered as 5-digit number. ''For example, if your PIN is 1234, enter 01234.''
−
** Enter zero followed by the 4-digit PIN. ''For example, if your PIN is 1234, enter 01234.''
+
'''[Test]'''<br>
−
* '''7-digit PIN'''
+
Check the 1st measuring value.<br>
−
** '''[Use 7-digit PIN/SKC]'''
+
'''[Save]'''<br>
−
** Enter the 7-digit PIN, Date on which the PIN was generated by the dealer, along with the Workshop Code (WSC) and the Importer number of the dealer that generated the code.
+
'''[Done, Go Back]'''<br>
−
** '''[OK]'''
+
'''[Close Controller, Go Back - 06]'''<br>
−
** VAG-COM will validate the data you have entered and return you to the Login screen, where the Login Code will show as "XXXXX".
+
 
 +
 
 +
* Switch OFF the ignition and let the car sit for ~1 minute, then switch ON the ignition again.
 +
* Verify that the NEW (USED) ECU now shows the VIN (and if supported IMMO-ID) of the vehicle now.
 +
* The challenge of instrument cluster and ECU never matches, so don't bother checking them.
 +
 
 +
== Engine Control Unit (ECU) Swapping (NEW ECU) ==
 +
 
 +
'''<u>Prerequisites:</u>'''<br>
 +
* The '''NEW''' ECU is already installed in the car.
 +
* Battery voltage at least 12.0 V.
 +
* All relevant coding and adaptation values have been transferred from the OLD (ORIGINAL) ECU to the NEW ECU.
 +
* Make sure to have the PIN of the CAR.
 +
 
 +
 
 +
'''[Select]'''<br>
 +
'''[01 - Engine]'''<br>
 +
'''[Adaptation - 10]'''<br>
 +
Enter 050 in "Channel Number".<br>
 +
'''[Read]'''<br>
 +
''For the following procedure, '''use the PIN of the CAR'''.''<br>
 +
* '''4/5-digit PIN'''
 +
** The PIN needs to be entered as 5-digit number. ''For example, if your PIN is 1234, enter 01234.''
 +
'''[Test]'''<br>
 +
Check the 1st measuring value.<br>
 
'''[Save]'''<br>
 
'''[Save]'''<br>
 
'''[Done, Go Back]'''<br>
 
'''[Done, Go Back]'''<br>
 
'''[Close Controller, Go Back - 06]'''<br>
 
'''[Close Controller, Go Back - 06]'''<br>
 +
 +
* ''The instrument cluster may now show '''Immobilizer Adaptation active''', wait until it changes to '''Immobilizer active''' - this may take up to 2 Minutes.''
  
  
 
* Switch OFF the ignition and let the car sit for ~1 minute, then switch ON the ignition again.
 
* Switch OFF the ignition and let the car sit for ~1 minute, then switch ON the ignition again.
−
* Verify that the NEW (USED) ECU now shows the VIN/IMMO-ID of the vehicle now.
+
* Verify that the NEW ECU now shows the VIN (and if supported IMMO-ID) of the vehicle now.
 +
* The challenge of instrument cluster and ECU never matches, so don't bother checking them.
 +
 
 +
 
 +
== Special Notes ==
 +
If Adaptation Channel 050 is not saving when the PIN is confirmed to be correct make sure the WSC/Importer/Equipment numbers are NOT all zeros before clicking Save.  If address 25-Immobilizer shows all zero details (Shop #: WSC 00000 000 00000) in the Auto-Scan after failed matching they can be changed on the VCDS program [https://www.ross-tech.com/vcds/tour/option_screen.php#WSC  [Options]] screen.  Any value that is not all zeros or ones should work.

Latest revision as of 14:45, 3 June 2024

This procedure details how to change the Engine Control Unit (ECU) on VW/Audi/Seat/Skoda vehicles with Immobilizer IV.

Determining VIN (ECU) & IMMO-ID/Challenge

[Select]
[01 - Engine]
[Meas. Blocks - 08]
Select Block 081.
[Go!]
The first 17-digit string is the VIN. The second 14-digit string in the Immo-ID (does not apply for all models).
[Done, Go Back]

On models which do not have an IMMO-ID you need to use the IMMO-Challenge instead.
[Advanced ID - 1A]
See the field IMMO-Challenge for the current value, keep in mind that the challenge changes with every ignition cycle!
[Close Controller, Go Back - 06]


Determining VIN (Instrument Cluster) & IMMO-ID/Challenge

[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 (does not apply for all models).
[Done, Go Back]

On models which do not have an IMMO-ID you need to use the IMMO-Challenge instead.
[Advanced ID - 1A]
See the field IMMO-Challenge for the current value, keep in mind that the challenge changes with every ignition cycle!
[Close Controller, Go Back - 06]


Engine Control Unit (ECU) Swapping (USED ECU)

Prerequisites:

  • The NEW (USED) ECU is already installed in the car.
  • Battery voltage at least 12.0 V.
  • All relevant coding and adaptation values have been transferred from the OLD (ORIGINAL) ECU to the NEW (USED) ECU.
  • Make sure to have BOTH PIN's, from the OLD (ORIGINAL) and the NEW (USED) ECU.


[Select]
[01 - Engine]


[Security Access - 16]
For the following procedure, use the PIN of the NEW (USED) ECU.

  • 4/5-digit PIN
    • The PIN needs to be entered as 5-digit number. For example, if your PIN is 1234, enter 01234.

[Do it!]


  • The instrument cluster now shows Immobilizer Adaptation active, wait until it changes to Immobilizer active - this may take up to 2 Minutes.


[Adaptation - 10]
Enter 050 in "Channel Number".
[Read]
For the following procedure, use the PIN of the OLD (ORIGINAL) ECU.

  • 4/5-digit PIN
    • The PIN needs to be entered as 5-digit number. For example, if your PIN is 1234, enter 01234.

[Test]
Check the 1st measuring value.
[Save]
[Done, Go Back]
[Close Controller, Go Back - 06]


  • Switch OFF the ignition and let the car sit for ~1 minute, then switch ON the ignition again.
  • Verify that the NEW (USED) ECU now shows the VIN (and if supported IMMO-ID) of the vehicle now.
  • The challenge of instrument cluster and ECU never matches, so don't bother checking them.

Engine Control Unit (ECU) Swapping (NEW ECU)

Prerequisites:

  • The NEW ECU is already installed in the car.
  • Battery voltage at least 12.0 V.
  • All relevant coding and adaptation values have been transferred from the OLD (ORIGINAL) ECU to the NEW ECU.
  • Make sure to have the PIN of the CAR.


[Select]
[01 - Engine]
[Adaptation - 10]
Enter 050 in "Channel Number".
[Read]
For the following procedure, use the PIN of the CAR.

  • 4/5-digit PIN
    • The PIN needs to be entered as 5-digit number. For example, if your PIN is 1234, enter 01234.

[Test]
Check the 1st measuring value.
[Save]
[Done, Go Back]
[Close Controller, Go Back - 06]

  • The instrument cluster may now show Immobilizer Adaptation active, wait until it changes to Immobilizer active - this may take up to 2 Minutes.


  • Switch OFF the ignition and let the car sit for ~1 minute, then switch ON the ignition again.
  • Verify that the NEW ECU now shows the VIN (and if supported IMMO-ID) of the vehicle now.
  • The challenge of instrument cluster and ECU never matches, so don't bother checking them.


Special Notes

If Adaptation Channel 050 is not saving when the PIN is confirmed to be correct make sure the WSC/Importer/Equipment numbers are NOT all zeros before clicking Save. If address 25-Immobilizer shows all zero details (Shop #: WSC 00000 000 00000) in the Auto-Scan after failed matching they can be changed on the VCDS program [Options] screen. Any value that is not all zeros or ones should work.

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