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Thread: Controller Locked

  1. #1

    Controller Locked

    MPVI2 I have been writing and modifying tunes, reading the codes with VCM Scanner, making progress.
    Then, all of a sudden, Can't read codes with VCM Scanner and Controller Locked, can't write or read anything.
    This is not a tuner locked tune, I unhooked battery for 30 minutes, tried again, same problem.
    This is the second ECM that this has happened to me with.

    What is going on and how do I unlock the controller?

    Anyone near Dunkirk NY for hire to get my 1948 F1 with FI LM4 bored to 5.7 running right?
    Bill at 716-679-7716

  2. #2
    HP Tuners Support
    Bill@HPTuners's Avatar
    Join Date
    Jun 2004
    Hailing from Parts Unknown
    I would recommend contacting support here as we will need additional information in order to troubleshoot further.
    It doesn't have to be perfect, it just needs to be done in two weeks...

    A wise man once said "google it"

  3. #3
    Potential Tuner
    Join Date
    Jul 2018

    Fix "Controller Unlock: Timed Out" Issue for 2003 Trailblazer 4.2L

    I got the same error message "Controller Unlock: Timed OUt". I email support, but 1st reply from HP Tuner says Resync and start again. I email second time and asked for more detail. You hook up your MPV2 to your lap top (connected to wifi) and find the Help and click on Resync Interface. I can not read and write from my ECM. I hoped that this helps. Also, after you resync interface, you will see pop up message saying 2 credit added. I am not sure technically what is going on, but 2 credit was added back on my MPV2 Pro.