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Thread: Can't read PCM after BBL upgrade.

  1. #1
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    Default Can't read PCM after BBL upgrade.

    A little backround info first.

    Vehicle is a '07 GMC Sierra 2500HD 4wd with E38 PCM. I read the PCM .tun file fine yesterday before upgrading to the black box logging.

    This morning I upgraded the V2 to black box logging. My original stock .tun file got saved accidentaly with some non stock info so I was trying to read the stock file from the truck again before doing anything else.

    When I try to read from the PCM the Tuning software goes through the initializing ECM/intializing bootloader part fine. Then it says ECM ready for reading flash and displays what I'm guessing is two lines of info about the PCM.

    A few seconds after those lines are displayed the locks unlock and "Service 4 Wheel Drive" is displayed in the DIC. Then after a few more seconds "Service Trailer Brake System" is displayed in the DIC. After about two minutes of sitting there "Reduced Engine Power" comes up in the DIC. The whole time this is happening the tuning software is just sitting there with a hourglass next to the cursor and no display showing the PCM being read.

    I've let it sit there for over 5 minutes just to see if the PCM was being read but, the display wasn't showing it. It was not being read so I just stopped it. The read took 4:32 yesterday when I did it originally.

    Just a heads up that something might be wrong with the BETA BBL update and reading PCM's

  2. #2
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    Same problem here with 2005 LLY engine control and trans control module as well as 2003 LB7 engine control module, interface stills reads and writes just fine with both 2007 LLY/LBZ in a medium duty as well as 2007 LMM. Also noted the calbration window is showing some duplicated entries now.

    13:40:20.406: Not ready, waiting 1 second for retry...
    13:40:21.703: Not ready, waiting 1 second for retry...
    13:40:23.000: Not ready, waiting 1 second for retry...
    13:40:24.281: ECM seed is: $30F6
    13:40:24.281: Unlock attempt 1 of 1
    13:40:24.437: Initializing ECM...
    13:40:25.218: Initializing ECM, step 1 of 4
    13:40:25.218: Initializing ECM, step 2 of 4
    13:40:26.000: Initializing ECM, step 3 of 4
    13:40:27.546: Initializing ECM, step 4 of 4
    13:40:27.984: Initializing bootloader...
    13:40:28.312: Initializing bootloader, step 1 of 3
    13:40:28.718: Initializing bootloader, step 2 of 3
    13:40:29.125: Initializing bootloader, step 3 of 3
    13:40:29.625: ECM ready for reading flash.
    13:40:29.765: Intel AB28F400B - 512K


    and thats where it sits until hit stop button
    then this

    13:53:53.859: Total time: 13:23
    13:53:53.859: Rebooting ECM... (please wait up to 8 seconds)
    13:53:55.031: ECM has booted successfully...
    13:53:56.031: Clear emisison related DTCs...
    13:53:56.078: Clear DTCs for all modules...
    13:53:56.921: Disconnecting ...
    13:53:56.968: CAN-VPW Bridge Deactived
    13:53:57.015: Disconnected
    13:54:04.875: Done!

    the duplicated entries are the data parameters, entry is duplicated the same number of times as there are lines in the chart and additionally there is now some sort of hexidecimal number appended to the data names

    and lastly, the lights dont blink on the v2 to indicate data transfer anymore (at least on the LBZ and LMM)

    update, cant read LS1 2003 truck or LS1 2000 truck anymore either.
    Last edited by mrrattle; November 24th, 2007 at 10:15 AM.

  3. #3
    EFILive Developer Site Admin Blacky's Avatar
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    We are looking into this problem...

    Regards
    Paul
    Before asking for help, please read this.

  4. #4
    Lifetime Member Cougar281's Avatar
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    Paul, just as an FYI, this appears to affect all contollers. I've tried 99+ LS1, LLY, 5-Speed Allison and 6-Speed Allison, all with the same effect.

  5. #5
    EFILive Developer Site Admin Blacky's Avatar
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    Working on it... (and all the other issues raised so far)
    I should have an update tomorrow.

    Regards
    Paul
    Before asking for help, please read this.

  6. #6
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    Thanks Paul, I knew going into this BETA there would be problems so no big deal.

    If you need any other info about the truck or operating system let me know.

  7. #7
    Lifetime Member JezzaB's Avatar
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    Having the same problem here. Tried it on an LS1 and an E38 PCM, no go.
    Jez
    Last edited by JezzaB; November 27th, 2007 at 07:05 PM.

  8. #8
    EFILive Developer Site Admin Blacky's Avatar
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    Update is being uploaded now...
    Paul
    Before asking for help, please read this.

  9. #9
    Lifetime Member JezzaB's Avatar
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    Quote Originally Posted by Blacky
    Update is being uploaded now...
    Paul
    Oh your a good man!

  10. #10
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    update worked, sorta, LB7 definately readable now, have not gotten to an LLY yet. But did get to a 2003 LS1 gasser in a truck and it failed as follows

    19:18:39.562: Scanning for EFILive FlashScan V2 USB
    19:18:43.265: Scanning for EFILive FlashScan V2 HAPI
    19:18:43.328: CAN-VPW Bridge Actived
    19:18:43.359: Current protocol set to: "SAE J1850 VPW"
    19:18:43.421: Interface firmware version: 9.5.2
    19:18:43.468: Interface firmware model: FSV2
    19:18:43.500: Interface firmware version: 9.5.2
    19:18:43.515: Interface firmware date: Nov 28, 2007
    19:18:43.546: FlashScan serial number: 003597229256
    19:18:43.578: FlashScan license number: 0000003597229256
    19:18:43.609: Disconnecting ...
    19:18:43.656: CAN-VPW Bridge Deactived
    19:18:43.703: Disconnected
    19:18:44.343: Scanning for EFILive FlashScan V2 USB
    19:18:48.046: Scanning for EFILive FlashScan V2 HAPI
    19:18:48.218: CAN-VPW Bridge Actived
    19:18:48.250: Current protocol set to: "SAE J1850 VPW"
    19:18:48.328: Interface firmware version: 9.5.2
    19:18:49.453: Current protocol: "SAE J1850 VPW"
    19:18:49.500: Interface firmware model: FSV2
    19:18:49.515: Interface firmware version: 9.5.2
    19:18:49.546: Interface firmware date: Nov 28, 2007
    19:18:49.562: FlashScan serial number: 003597229256
    19:18:49.593: FlashScan license number: 0000003597229256
    19:18:49.718: Getting status...
    19:18:49.781: Status: OK.
    19:18:50.750: Bootloader version: LS1B_v1.6R (04D2-6318)
    19:18:50.750: Preparing PCM for reading flash...
    19:18:50.796: PCM seed is: $2584
    19:18:50.796: Unlock attempt 1 of 1
    19:18:50.953: Initializing PCM...
    19:18:51.718: Initializing PCM, step 1 of 4
    19:18:51.718: Initializing PCM, step 2 of 4
    19:18:52.500: Initializing PCM, step 3 of 4
    19:18:54.046: Initializing PCM, step 4 of 4
    19:18:54.484: Initializing bootloader...
    19:18:54.828: Initializing bootloader, step 1 of 3
    19:18:55.218: Initializing bootloader, step 2 of 3
    19:18:55.609: Initializing bootloader, step 3 of 3
    19:18:56.109: PCM ready for reading flash.
    19:18:56.250: Intel AB28F800B - 1Mb
    19:19:06.171: Error: Failed. Controller has returned to normal operation, please retry the operation.
    19:19:06.812: Total time: 00:09
    19:19:06.812: Rebooting PCM... (please wait up to 8 seconds)
    19:19:07.968: PCM has booted successfully...
    19:19:08.968: Clear emisison related DTCs...
    19:19:09.015: Clear DTCs for all modules...
    19:19:09.875: Disconnecting ...
    19:19:09.921: CAN-VPW Bridge Deactived
    19:19:09.984: Disconnected
    19:19:13.156: Done!


    same pcm reads just fine with other interfaces that i have.

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