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Thread: $054A Boot Loader Failed to Start

  1. #1
    Junior Member brentg454's Avatar
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    Sep 2006
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    Default $054A Boot Loader Failed to Start

    I tried to flash a tune to my 2000 C5 today using the V2 by itself and got the above error message. I have flashed this thing hundreds of times over the years and have never seen this code before.

    The manual says the following:
    $054A Boot Loader Failed to Start
    The most common cause of this error is
    misbehaving modules on the vehicle
    network. Please isolate all non-essential
    electronic modules from the vehicle
    network. Modules such as radios, OBDII
    based gauges, entertainment systems,
    navigation systems etc.

    How do I do that, pull a fuse or what? Any tips or tricks to check first? I made sure that I have the latest firmware, etc. loaded onto my V2. Thanks for any help or direction!

    Brent
    2000 C5 FRC, some stuff.
    2006 TBSS, more stuff.

  2. #2
    Joe (Moderator) joecar's Avatar
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    Default

    Yes, correct, pull the fuses for Radio/Entertainment and On-Star for starters... see how that goes.

  3. #3
    Junior Member brentg454's Avatar
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    Default

    Quote Originally Posted by joecar View Post
    Yes, correct, pull the fuses for Radio/Entertainment and On-Star for starters... see how that goes.
    Hey, worked like a charm...thanks joecar!
    2000 C5 FRC, some stuff.
    2006 TBSS, more stuff.

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