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Thread: Code $0537: Controller is locked with a custom key

  1. #1
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    Question Code $0537: Controller is locked with a custom key

    Hello everyone,

    I can't seem to flash to a new tune due to code $0537. Any ideas?




    Backgound:

    Truck: 2002 GMC 2500HD w/ LB7 & Allison 1000

    I first flashed the truck in late 2011 with a DSP5 tune. I flashed the .tun file using v7.5 and it ran well except my A/C wouldn't turn on. Since I rarely drove the truck and didn't use A/C over the winter, I didn't notice until the summer of 2012.

    In late 2012, I contacted my tuner and he informed me my particular ECU's OS version didn't play well with EFI Live, so I could a) get a single tune or b) have the dealer update my ECU's OS and he'd create a new DSP5 tune with the new OS.

    I opted for option b) and my tuner sent me a new DSP5 tune based on the new OS. It worked well and I've been using the tune since.

    And now, mid 2014, I had my tuner create a new DSP5 tune for my newest mods. He sent me the newer v8 file and when I attempted to flash, I received the code $0537 error.
    Last edited by 9mmkungfu; April 10th, 2014 at 01:19 AM. Reason: Removed inaccurate information.

  2. #2
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    Anyone?

  3. #3
    EFILive Developer Site Admin Blacky's Avatar
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    Please log the issue with EFILive Support with the appropriate trace files as explained here:
    http://support.efilive.com/kb_articl...7778-QEKN-0400

    Meanwhile, if your dealer has flashed the ECM or replaced the ECM then there is a chance the ECM was corrupted during that process which can cause the seed/key to stop working.

    If you have access to a laptop, try using AutoCal in pass-through mode with the EFILive V8 Scan and Tune software and check the two checkboxes: "Try Alt Keys" and "Assume Lock May be Faulty".
    When you do that in pass-through mode the software will create a *.htx trace file in \My Documents\EFILive\V8\Trace. That is the trace file you need to send to EFILive Support.

    Regards
    Paul
    Before asking for help, please read this.

  4. #4
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    Thanks Paul. The ECM is at the tuner now and he has just informed me it's locked. I have no idea how, as I have been the only person to have flashed the ECM twice. He is recommending I pay $150 to have the ECM unlocked. Do I have any other alternatives?

    Frustrating..

  5. #5
    Diesel Forum Support Site Admin
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    Did you try the options Paul listed above and send through the .htx trace file?

    Cheers
    Cindy

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    I have not. My tuner suggested I send it to him and let him look at it. Now that he has informed me there is nothing he can do, I will try Paul's suggestion when the ECM is returned. I am hoping to have it back by the beginning of next week, at which point I should be able to update the support case with the .htx trace file.

    Thank you Cindy!

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    Yesterday I received my ECM from my tuner, installed it and saved a log file. The support case has been opened and the log file uploaded as of yesterday. Thanks!

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    Quote Originally Posted by 9mmkungfu View Post
    Yesterday I received my ECM from my tuner, installed it and saved a log file. The support case has been opened and the log file uploaded as of yesterday. Thanks!
    Here is the link to the case:

    https://support.efilive.com/view.php...&pass=TJ9fw6x2

  9. #9
    EFILive Developer Site Admin Blacky's Avatar
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    Quote Originally Posted by 9mmkungfu View Post
    I'm working on your case now...
    Regards
    Paul
    Before asking for help, please read this.

  10. #10
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    Quote Originally Posted by Blacky View Post
    I'm working on your case now...
    Regards
    Paul
    Thanks Paul, I appreciate it!!

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