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Thread: 06 gmc envoy p12 pcm issue

  1. #11
    Lifetime Member HellKnightHicks's Avatar
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    So I had the same thing happen to me. Im sitting in one right now it keeps flashing stablitrack off. I attempted to do a full reflash as sugested.

    Just keeps saying Stabilitrack is off in the cluster....

    So i powered off and tried again.

    Says Service Stabilitrack on the screen.

    Pulled fuse and it starts erases ECM and then begins flash. But EFI live

    EFI live repeats retrying previous block.....
    Last edited by HellKnightHicks; December 31st, 2014 at 09:25 AM.

  2. #12
    Lifetime Member HellKnightHicks's Avatar
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    That was with V7 software i will try again with V8 software in a day or so.

    It was the latest version though... I had modified some DTC's is really the only reason i was in the tuning software... do you guys think that V7 is the reason for the flashing issue?

    Any help would be appreciated.

  3. #13
    Lifetime Member Chevy366's Avatar
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    I answered your PM. Never had an issue with the Stabilitrack causing an error before, you did right by pulling fuse I would think.
    Like I said in the PM the P12s are a strange breed, and can be temperamental some times.
    Again clear your Config files on the V2 controller and reinstall with the newer ones.
    2005 1500 HD , Custom OS3 SD tune .
    2006 Trailblazer
    Dinosaurs and Plants gave their lives so that we may drive , long live fossil fuel .

  4. #14
    Lifetime Member HellKnightHicks's Avatar
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    How do you clear the config files? I havent changed anything on the V2 controller.

    So you think i can salvage it then...? It did accept the boot loader.

    No it doesnt start.
    Last edited by HellKnightHicks; January 2nd, 2015 at 09:01 AM.

  5. #15
    Lifetime Member Chevy366's Avatar
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    Go to "EFILive Explorer" with controller plugged into desktop/laptop, click on tab marked "F9: Config Files" and "Format Config", then close that and open EFILive Scan and Tune>F5: BBX and do the setup for P12 again> "Program", "Config file" gets rewritten. Try again.

    If there a faster way/less steps to do this, if anyone knows please post it here.

    As long as EFILive can see it it is probably recoverable with a "Full Flash", has to have complete OS before you can do "Calibration only".

    Bench Harness -- http://download.efilive.com/Tutorial...20Tutorial.pdf

    (EFILive Staff) On the Harness, if it denotes 4&8 on a pin out, that means 4 on the V2 to 8 on the PCM correct ?
    Last edited by Chevy366; January 2nd, 2015 at 11:22 AM.
    2005 1500 HD , Custom OS3 SD tune .
    2006 Trailblazer
    Dinosaurs and Plants gave their lives so that we may drive , long live fossil fuel .

  6. #16
    Lifetime Member HellKnightHicks's Avatar
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    Between the fuses and the config stuff that did it.

    Is there any way to load all of the config files using the SD card? Apparently my flash and scan couldn't handle the full load that's selected by default.


    Thx for the help

  7. #17
    Joe (Moderator) joecar's Avatar
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    Quote Originally Posted by Chevy366 View Post
    ...

    (EFILive Staff) On the Harness, if it denotes 4&8 on a pin out, that means 4 on the V2 to 8 on the PCM correct ?
    No...

    "4 & 8" means: pins 4 and 8 on the same connector.
    Last edited by joecar; January 3rd, 2015 at 04:02 PM. Reason: lol, spelling...

  8. #18
    Joe (Moderator) joecar's Avatar
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    Quote Originally Posted by HellKnightHicks View Post
    Between the fuses and the config stuff that did it.

    Is there any way to load all of the config files using the SD card? Apparently my flash and scan couldn't handle the full load that's selected by default.


    Thx for the help
    Not on the SD card...

    Delete any config files for ECM's that you do not use.

  9. #19
    Lifetime Member Chevy366's Avatar
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    Quote Originally Posted by joecar View Post
    No...

    "4 & 8" means: pins 4 and 8 o the same connector.
    Thanks joe.
    2005 1500 HD , Custom OS3 SD tune .
    2006 Trailblazer
    Dinosaurs and Plants gave their lives so that we may drive , long live fossil fuel .

  10. #20
    Lifetime Member Chevy366's Avatar
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    Quote Originally Posted by HellKnightHicks View Post
    Between the fuses and the config stuff that did it.

    Is there any way to load all of the config files using the SD card? Apparently my flash and scan couldn't handle the full load that's selected by default.


    Thx for the help
    No problem, we are all in this together. ;-)

    Those darn P12s can be a PITA.

    Oops forgot to tell you not to select all, there is a bar at the bottom that shows current percentage of space left it has to be under 100% obviously, you have to remove parameters to achieve that as you found out.
    Last edited by Chevy366; January 3rd, 2015 at 07:07 AM.
    2005 1500 HD , Custom OS3 SD tune .
    2006 Trailblazer
    Dinosaurs and Plants gave their lives so that we may drive , long live fossil fuel .

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