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Thread: [B]HELP[\B] Another Dead PCM

  1. #1
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    Default [B]HELP[\B] Another Dead PCM

    HELP

    Well it has happened again with another PCM.

    A mate removed the blower off his car and I attempted to flash in a modified mafless tune. However once again the PCM will not flash and I can no longer read the PCM. I am using the same OP system that came out of the PCM just modified.

    Since the last problem to the current one I have successfully flashed other vehicles including my own.

    This happened a couple of weeks ago with a E38 PCM. (Thread already created).

    This time I am attempting to flash a VZ LS1 1024kb PCM and got the following message.

    15:41:39.125: Scanning for EFILive FlashScan V2 USB
    15:41:41.656: Scanning for EFILive FlashScan V2 HAPI
    15:41:41.843: Interface firmware version: 2.6.6
    15:41:41.890: Interface firmware model: FSV2
    15:41:41.906: Interface firmware version: 2.6.6
    15:41:41.921: Interface firmware date: Dec 14, 2008
    15:41:41.937: FlashScan serial number: 003689852244
    15:41:41.953: FlashScan license number: 003689852244
    15:41:41.984: Disconnecting ...
    15:41:42.437: CAN-VPW Bridge Deactivated
    15:41:42.437: Disconnected
    15:41:43.109: Scanning for EFILive FlashScan V2 USB
    15:41:45.640: Scanning for EFILive FlashScan V2 HAPI
    15:41:45.843: Interface firmware version: 2.6.6
    15:41:45.859: CAN-VPW Bridge Activated
    15:41:45.890: Current protocol set to: "SAE J1850 VPW"
    15:41:47.031: Current protocol: "SAE J1850 VPW"
    15:41:47.062: Interface firmware model: FSV2
    15:41:47.078: Interface firmware version: 2.6.6
    15:41:47.093: Interface firmware date: Dec 14, 2008
    15:41:47.125: FlashScan serial number: 003689852244
    15:41:47.140: FlashScan license number: 003689852244
    15:41:47.500: Getting status...
    15:41:47.562: Status: OK.
    15:41:48.406: Bootloader version: LS1B_v1.7C (08DC-9623)
    15:41:48.406: Preparing PCM for reflash...
    15:41:48.453: PCM seed is: $3EBF
    15:41:48.453: Unlock attempt 1 of 1
    15:41:48.750: Initializing PCM...
    15:41:49.484: Initializing PCM, step 1 of 4
    15:41:49.484: Initializing PCM, step 2 of 4
    15:41:50.250: Initializing PCM, step 3 of 4
    15:41:50.250: Initializing PCM, step 4 of 4
    15:41:55.265: No response from PCM. Retry 1...
    15:41:55.640: Not ready, waiting 1 second for retry...
    15:41:57.031: Not ready, waiting 1 second for retry...
    15:41:58.328: Not ready, waiting 1 second for retry...
    15:41:59.625: Not ready, waiting 1 second for retry...
    15:42:00.921: Not ready, waiting 1 second for retry...
    15:42:02.718: Not ready, waiting 1 second for retry...
    15:42:04.312: Not ready, waiting 1 second for retry...
    15:42:05.906: PCM seed is: $3EBF
    15:42:05.906: Unlock attempt 1 of 1
    15:42:07.062: Initializing PCM...
    15:42:07.828: Initializing PCM, step 1 of 4
    15:42:07.828: Initializing PCM, step 2 of 4
    15:42:08.578: Initializing PCM, step 3 of 4
    15:42:08.578: Initializing PCM, step 4 of 4
    15:42:13.593: No response from PCM. Retry 2...
    15:42:16.671: PCM is in an unknown state.
    15:42:18.781: Clear emisison related DTCs...
    15:42:18.843: Clear DTCs for all modules...
    15:42:19.843: Disconnecting ...
    15:42:20.546: CAN-VPW Bridge Deactivated
    15:42:20.562: Disconnected
    15:42:20.562: Data transfer was interrupted.
    15:42:25.828: Done!


    This is becoming very frustrating.

  2. #2
    Lifetime Member mr.prick's Avatar
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    Low battery voltage?
    512k RoadRunner Firmware 12.14R
    FlashScan V2 Bootblock V2.07.04 Firmware V2.07.22 EFILive V7.5.7 (Build 191) V8.2.1 (Build 181)
    LC-1 WBO2

    _________________________________________________

  3. #3
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    Don't think so even with the old tune it will crank and fire, even though the old tune is 2bar etc.

  4. #4
    EFILive Crew Site Admin Tordne's Avatar
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    Have you tried a different OBDII cable (if you have one)?

    Also, as per your last issue please see this page (http://www.efilive.com/index.php?opt...111&Itemid=121) and send through the BLX file for the read/flash attempt. Please only send the file which relates to the failure, or if unsure reattempt the read/flash and send the latest file created.
    Andrew
    EFILive Crew


  5. #5
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    Problem now resolved, well problem not so much but tune in vehicle started and gone.

    Then flashed another car not long after without fuss.

    Very strange indeed.

    Thanks for the suggestions.

  6. #6
    Lifetime Member Chevy366's Avatar
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    Quote Originally Posted by ls1vt209 View Post
    Problem now resolved, well problem not so much but tune in vehicle started and gone.

    Then flashed another car not long after without fuss.

    Very strange indeed.

    Thanks for the suggestions.
    Which was it , low voltage or OBDII cable ?
    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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