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Thread: truck won't start reflash failed

  1. #1
    New Member
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    Unhappy truck won't start reflash failed

    Help! read colorado, licence pcm start flashing failed no more communication whit pcm

  2. #2
    Lifetime Member Chevy366's Avatar
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    Try pulling negative bat cable , wait 15 min and try again .
    Make sure if non-factory radio pull fuse .
    2005 1500 HD , Custom OS3 SD tune .
    2006 Trailblazer
    Dinosaurs and Plants gave their lives so that we may drive , long live fossil fuel .

  3. #3
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    Already try but no success Thanks

  4. #4
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    A full reflash fixe the problem

  5. #5
    Lifetime Member Chevy366's Avatar
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    Wonder why cal only failed then ?
    Glad it is working again for you .
    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. #6
    Junior Member hondarider552's Avatar
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    Apr 2008
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    with a full reflash IIRC you need to do a cam relearn.. but not with a cal flash.
    03 single cab work truck LB7- 11.95 @ 113
    06 crew cab lowered Colorado.

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