Adaptation after replacing Engine Control Module (ECM): Procedure

Initiate On Board Diagnostic (OBD) of immobilizer. See IMMOBILIZER ON BOARD DIAGNOSTIC (OBD), INITIATING .

Display on VAS 5051:

Fig 1: Display On VAS 5051 - Immobilizer Adaptation After Replacing Engine Control Module (1 Of 11)

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Control module identification of the instrument cluster
Control module identification of immobilizer

Fig 2: Immobilizer Control Module Identification - Example

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Using the 14 digit identification number of the ECM, determine the 7-digit PIN. See LOST KEY PROCEDURE .

Click on --> button

Display on VAS 5051:

Fig 3: Display On VAS 5051 - Immobilizer Adaptation After Replacing Engine Control Module (2 Of 11)

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Select diagnostic function "06 - End Output" in selection -1-.

Display on VAS 5051:

Fig 4: Display On VAS 5051 - Immobilizer Adaptation After Replacing Engine Control Module (3 Of 11)

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Press selection -1- of vehicle system "01 -Engine electronics".
Wait until the next indication appears on display.

Display on VAS 5051:

Fig 5: Display On VAS 5051 - Immobilizer Adaptation After Replacing Engine Control Module (4 Of 11)

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Control module identification of Engine Control Module (ECM).
Control module identification of immobilizer

CONTROL MODULE IDENTIFICATION - ANTI-THEFT IMMOBILIZER

Control module identification anti-theft immobilizer
XXXXXXXXXXXXXXXXX XXXXXXXXXXXXXX

NOTE: If a used Engine Control Module (ECM) is being installed, it must first be switched free via a login procedure. See LOGIN PROCEDURE, ENGINE CONTROL MODULE (ECM) . The 7-digit PIN must be determined via the 14-digit identification number of the used Engine Control Module (ECM). Continue as follows after successful login procedure:

Click on --> button

Display on VAS 5051:

Fig 6: Display On VAS 5051 - Immobilizer Adaptation After Replacing Engine Control Module (5 Of 11)

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In selection -1-, select the diagnostic function "10 - Adaptation".

Display on VAS 5051:

Fig 7: Display On VAS 5051 - Immobilizer Adaptation After Replacing Engine Control Module (6 Of 11)

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Enter channel number Max. input value = 99

Select function "50" in button field -2- for "Adaptation channel 50" and press Q button to confirm input.

Display on VAS 5051:

Fig 8: Display On VAS 5051 - Immobilizer Adaptation After Replacing Engine Control Module (7 Of 11)

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Channel 50 read and test
PIN ?
Keypad - only direct input via the keypad is possible
Sliding bar is positioned on 32000

Press "Keypad" button -3-.

Display on VAS 5051:

Fig 9: Display On VAS 5051 - Immobilizer Adaptation After Replacing Engine Control Module (8 Of 11)

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Enter adaptation value Input value: 0 to 65535

Enter previously determined 7-digit PIN (of instrument cluster) in button field -2-.
Press -Q- button to confirm input.

NOTE: If the 7-digit PIN is entered incorrectly three times, tester display will indicate "locked 10". This locking time can also be indicated in measuring value block 024 (display field 1). Adaptation is now locked for 10 minutes. This time is doubled after every third consecutive incorrect attempt, up to a maximum of 255 minutes.

Wait until the next indication appears on display.

NOTE: If a malfunction occurs during adaptation, the following DTCs can be displayed:

"Interference": CAN-bus not available or engine speed recognized (adaptation only with the engine standing still)
"Adaptation not OK": Instrument cluster cannot give out data (17-digit VIN, 14-digit identification number), since the control module is still new (factory condition) or the data is faulty.
"System not OK": Instrument cluster does not give out data, since it was previously used with a control module (Engine Control Module) with another performance class (tuning-protection).
"Key not OK": Data cannot be given out or accepted, because no key or no matching key is available.

If no malfunction is present, this display appears:

Display on VAS 5051:

Fig 10: Display On VAS 5051 - Immobilizer Adaptation After Replacing Engine Control Module (9 Of 11)

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1 - Channel 50 read and test
2 - 17-digit VIN (Vehicle Identification Number)
5 - Sliding bar is positioned on 32000

Press "Save" button -4-.

Display on VAS 5051:

Fig 11: Display On VAS 5051 - Immobilizer Adaptation After Replacing Engine Control Module (10 Of 11)

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1 - Channel 50 save
2 - 17-digit VIN (Vehicle Identification Number)
4 - original value 32000 new value 32000

Confirm new adaptation value by pressing the "take over" button -3-.

Display on VAS 5051:

Fig 12: Display On VAS 5051 - Immobilizer Adaptation After Replacing Engine Control Module (11 Of 11)

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Channel 50 Value 32000 stored

End function "10 - Adaptation" by pressing <-- button.

Adaptation of the Engine Control Module (ECM) to the immobilizer has been completed and the vehicle can be started.