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GM security pin retrieval from a used ecu

1528 Views 1 Replies Latest reply: 2018-07-12 23:01:07


  •   Level 2   
    (10) points
    PatKC
    2018-06-30 00:50:47
     I purchased a used ecu for my 2011 buick lacrosse. But I do not have the 4 digit security code from the donor vehicle. I am trying to reprogram it to my car.  Is there a way to find it in the replacement ecu? Thanks for everyone's time!
    Reply

  •   Level 7   
    (1473) points
    Kevin H

    2018-07-12 23:01:07 (Reply to:PatKC)

     I thought you programmed the ECM with your J box then run the ECM immobilizer learn procedure in scan tool. Running the learn procedure syncs the passwords between the cluster ,ECM and BCM. 
    Reply
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