Adaptation After Replacing Engine Control Module (ECM)
Adaptation After Replacing Engine Control Module (ECM)
NOTE:
- The Engine Control Module (ECM) is adapted to the instrument cluster (with integrated anti- theft immobilizer). When the Engine Control Module (ECM) is replaced, the new ECM must be re-adapted to the immobilizer.
- If no authorized ignition key is available, but the 7-digit PIN is available, new ignition keys must be manufactured and adapted to the "Adaptation after replacing instrument cluster".
- Adaptation can be interrupted using the "C" button.
Procedure
- Initiate On Board Diagnostic (OBD) of immobilizer.
Display on VAS 5051:
1 - Control module identification of the instrument cluster
2 - Control module identification of immobilizer
Using the 14 digit identification number of the ECM, determine the 7-digit PIN.
- Press -> button
Display on VAS 5051:
- Select diagnostic function "06 - End Output" in selection -1-
Display on VAS 5051:
- Press selection -1- of vehicle system "01 - Engine electronics"
- Wait until the next indication appears on display.
Display on VAS 5051:
1 - Control module identification of Engine Control Module (ECM).
2 - Control module identification of immobilizer.
NOTE: If a used Engine Control Module (ECM) is being installed, it must first be switched free via a login procedure. 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:
- Press -> button
Display on VAS 5051:
- In selection -1 -, select the diagnostic function "10 - Adaptation".
Display on VAS 5051:
1 - 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:
1 - Channel 50 read and test
2 - PIN?
3 - Keypad - only direct input via the keypad is possible
4 - Sliding bar is positioned on 32000
- Press "Keypad" button -3-.
Display on VAS 5051:
1 - 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:
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:
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:
1 - 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.